US20030069411A1 - Apparatus and method for polymer synthesis using arrays - Google Patents

Apparatus and method for polymer synthesis using arrays Download PDF

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US20030069411A1
US20030069411A1 US10/171,497 US17149702A US2003069411A1 US 20030069411 A1 US20030069411 A1 US 20030069411A1 US 17149702 A US17149702 A US 17149702A US 2003069411 A1 US2003069411 A1 US 2003069411A1
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synthesis apparatus
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polymer
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Thomas Brennan
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Brennan Thomas M.
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Priority to US08/142,593 priority Critical patent/US5472672A/en
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Priority to US08/452,967 priority patent/US5837858A/en
Priority to US16234898A priority
Priority to US68927200A priority
Application filed by Brennan Thomas M. filed Critical Brennan Thomas M.
Priority to US10/171,497 priority patent/US20030069411A1/en
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    • C07K1/045General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length on carriers using devices to improve synthesis, e.g. reactors, special vessels
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Abstract

A polymer synthesis apparatus (20) for building a polymer chain including a head assembly (21) having an array of nozzles (22) with each nozzle coupled to a reservoir (23) of liquid reagent (24), and a base assembly (25) having an array of reaction wells (26). A transport mechanism (27) aligns the reaction wells (26) and selected nozzles (22) for deposition of the liquid reagent (24) into selected reaction wells (26). A sliding seal (30) is positioned between the head assembly (21) and the base assembly (25) to form a common chamber (31) enclosing both the reaction well (26) and the nozzles (22) therein. A gas inlet (70) into the common chamber (31), upstream from the nozzles (22), and a gas outlet (71) out of the common chamber (31), downstream from the nozzles (22), sweeps the common chamber (31) of toxic fumes emitted by the reagents. Each reaction well (26) includes an orifice (74) extending into the well (26) which is of a size and dimension to form a capillary liquid seal to retain the reagent solution (76) in the well (26) for polymer chain growth therein. A pressure regulating device (82) is provided for controlling a pressure differential, between a first gas pressure exerted on the reaction well (26) and a second gas pressure exerted on an exit (80) of the orifice, such that upon the pressure differential exceeding a predetermined amount, the reagent solution (76) is expelled from the well (26) through the orifice (74). A method of synthesis of a polymer chain in a synthesis apparatus (20) is also included.

Description

    TECHNICAL FIELD
  • The present invention relates, generally, to polymer synthesis apparatus, and, more particularly, relates to polymer synthesis apparatus using arrays. [0001]
  • BACKGROUND ART
  • In the recent past, oligonucleotides have played an increasing and more pivotal role in diagnostic medicine, forensic medicine and molecular biology research. One primary function of these polymers, in particular, is their use in gene probe assays for the detection of specific nucleic acid sequences. [0002]
  • Gene probe assays are used for a variety of purposes, including: genetic counseling; tissue typing; and molecular biology research. For example, an individual may be tested to see if he or she carries the gene for Huntington's disease or cystic fibrosis. Another use of gene probe assays include determining compatibility prior to tissue transplantation, and for matching up tissue or blood samples for forensic medicine. Finally, in molecular biology research, these assays are extensively employed to explore homologies among genes from different species, and to clone genes for which only a partial nucleic acid or amino acid sequence is known, such as in the polymerase chain reaction (pcr). [0003]
  • These types of assays typically test for the presence of a specific nucleic acid sequence, usually a DNA sequence, although RNA sequences may be employed as well. As is well known in the field, this is accomplished utilizing oligonucleotides synthesized to have specific, predetermined sequences. The sequence of an oligonucleotide probe may be based on known amino acid sequences, known DNA sequences, or may be a “guess” probe, based on homology to known or putative DNA or amino acid sequences. Since DNA is a “degenerate” code, and several DNA sequences will result in a single amino acid sequence, gene probe assays based on an amino acid sequence frequently utilize pools of related oligonucleotides; each having a different specific sequence of nucleotides. Thus it is often necessary to create a large number of related but distinct oligonucleotides to clone a single gene. [0004]
  • In addition to the actual sequence, there are a number of parameters which may be altered in the synthesis of oligonucleotides. It is also frequently necessary to synthesize these polymers in a variety of lengths, since generally, the longer the oligonucleotide probe, the more specific the gene probe assay will be; specificity may or may not be desired in any particular application. Oligonucleotides may be made of deoxyribonucleotides, or ribonucleotides, or mixtures. Alternatively, oligonucleotides with modified or non-standard bases or non-radioactive labels incorporated may be desirable. Similarly, oligonucleotides with altered ribose-phosphate backbones may be created for some applications. [0005]
  • There are several other uses of oligonucleotides besides the gene probe assay use. For example, the formation of a single stranded oligonucleotide with a specific sequence may be used in the formation of extremely stable triplex DNA structures. Other uses include direct construction of synthetic genes and plasmid vectotrts by ligating or joining together the component 5′-phosphate oligonucleotides. [0006]
  • Accordingly, as the use of synthetic oligonucleotides has increased, so has its demand. In turn, this has spawned development of new synthesis apparatus and methodologies for basic procedures for custom sequence defined oligonucleotides. These apparatus and methods, however, are generally very expensive to employ and not readily available for mass production thereof. Typically, the present generation automated DNA sequential synthesizers place a derivatized solid support, such as controlled pore glass (CPG), into an individual reaction chamber of a column to provide a stable anchor on which to initiate solid phase synthesis. Using a series of complex valving, and pumps coupled to the column, the appropriate selected reagents are sequentially filtrated through the chamber in a predetermined manner. Contact of the reagent with the polymer units pre-affixed to the CPG, which is retained and supported in the chamber by a sample support porous frit, causes a reaction resulting in sequenced growth thereon. [0007]
  • While each column of this assembly is effective to rapidly mass produce a homogenous population of sequence defined oligonucleotides, the current assemblies only offer four (4) column capabilities. Increased column capacity is limited due to physical limitations of the valving configuration. Hence, only four independent synthesis cycles can be performed simultaneously. Further, since the synthesis apparatus is not generally amenable to integrated automation with other robotic lab instrumentation, an operator must intervene to load and remove each individual synthesis column manually. Such handling increases human error. [0008]
  • A more important limitation is that all the reagents are funneled through a common manifold passage. Only one reagent or combination thereof, thus, can be simultaneously deposited in selected columns. For example, the reagent “tetrazole” cannot be deposited in column one while a particular amidite reagent is simultaneously being deposited in column four. In addition, for each independent synthesis or reaction, the common manifold passage and associated valving must be flushed with a cleansing reagent so that residual amidite or deblocking reagents will not be undesirably deposited in a column. This approach wastes time, as well as increasing operator costs. [0009]
  • Synthesis of arrays of bound oligonucleotides or peptides is also generally known in the art. In one approach to parallel synthesis, known as the Tea-bag?? method or disk design, an array of individual packets or disks of solid support beads are physically sorted into four (4) amidite subsets for treatment with the selected amidite. After each packet of beads has been treated with the common reagent, the packets must again be manually resorted into the four subsets for the subsequent synthesis cycle. Such sorting and resorting becomes too burdensome and labor intensive for the preparation of large arrays of oligonucleotides. [0010]
  • Another approach using arrays is the pin dipping method for parallel oligonucleotide synthesis. Geysen, [0011] J. Org. Chem. 56, 6659 (1991). In this method, small amounts of solid support are fused to arrays of solenoid controlled polypropylene pins, which are subsequently dipped into trays of the appropriate reagents. The density of arrays, however, is limited, and the dipping procedure employed is cumbersome in practice.
  • Disclosed at the Southern, Genome Mapping Sequence Conference, May 1991, Cold Spring Harbour, N.Y., is still another scheme for oligonucleotide array synthesis in which selected areas on a glass plate are physically masked and the desired chemical reaction is carried out on the unmasked portion of the plate. The problem with this method is that it is necessary to remove the old mask and apply a new one after each interaction. Fodor et al., [0012] Science 251, 767 (1991) describes another method for synthesizing very dense 50 micron arrays of peptides (and potentially oligonucleotides) using mask-directed photochemical deprotection and synthetic intermediates. This method is limited by the slow rate of photochemical deprotection and by the susceptibility to side reactions (e.g., thymidine dimer formation) in oligonucleotide synthesis. Khrapko et al., FEBS Letters 256, 118 (1989) suggest simplified synthesis and immobilization of multiple oligonucleotides by direct synthesis on a two-dimensional support, using a printer-like device capable of sampling each of the four nucleotides into given dots on the matrix. However, no particulars about how to make or use such a device are provided.
  • In summary, the related art generally contains numerous ideas and information related to the synthesis of arrays of oligonucleotides or peptides for the determination of nucleotide sequences or the amino acid sequences of specific binding peptides. However, existing or suggested methods are limited, and do not conveniently and reliably mass produce very large arrays necessary for effective large-scale sequencing. [0013]
  • DISCLOSURE OF INVENTION
  • Accordingly, it is an object of the present invention to provide a polymer synthesis apparatus and method for building sequence defined polymer chains. [0014]
  • Another object of the present invention is to provide a polymer synthesis apparatus and method for preparing large quantity arrays of oligonucleotides or peptides in a reproducible and rapid manner. [0015]
  • Yet another object of the present invention is to provide a polymer synthesis apparatus and method which reduces reagent waste during the preparation of large quantity arrays of oligonucleotides. [0016]
  • Still another object of the present invention is to provide a polymer synthesis apparatus and method for preparing large quantity arrays of oligonucleotide at reduced costs. [0017]
  • It is a further object of the present invention to provide a polymer array synthesis apparatus and method which is durable, compact, easy to maintain, has a minimum number of components, is easy to use by unskilled personnel, and is economical to manufacture. [0018]
  • In accordance with the foregoing objects, one embodiment of the present invention provides a polymer synthesis apparatus for building a polymer chain by sequentially adding polymer units in a reagent solution. The synthesis apparatus comprises a head assembly having a plurality of nozzles mounted thereto in generally spaced-apart relation. Each nozzle is coupled to a reservoir of liquid reagent for controlled delivery therethrough. Further, a base assembly is included having at least one reaction well, and a transport mechanism coupled to at least one of the head assembly and the base assembly to produce relative movement therebetween. This positions the reaction well and a selected one nozzle in alignment for deposition of a liquid reagent into the reaction well for synthesis of a polymer chain. A sliding seal is positioned between the head assembly and the base assembly to form a common chamber enclosing both the reaction well and the nozzles therein. [0019]
  • The synthesis apparatus may further include an inlet into the common chamber positioned upstream from the nozzles, and an outlet out of the common chamber positioned downstream from the nozzles. A pressurized gas source is coupled to the inlet for continuously streaming a gas through the common chamber from the chamber upstream to the chamber downstream and out of the outlet to sweep the common chamber of toxic fumes emitted by the reagents, as well as keep air and moisture from seeping in. [0020]
  • In another aspect of the present invention, a polymer synthesis apparatus is provided comprising a base assembly including a reaction well, and having at least one orifice extending into the well. At least one solid support is disposed in the well for growing and immobilizing a polymer chain thereon. Reagent solution in the well is in contact with the solid support and at least one polymer unit of the polymer chain affixed to the solid support. Further, a retaining device is included positioned in the well, and is formed and dimensioned to substantially prevent passage of the solid support through the orifice. The orifice has an entrance into the well and an exit out of the well, and is of a size and dimension to form a capillary liquid seal to retain the reagent solution in the well to enable polymer chain growth therein. To retain the solution in the well, a pressure differential between a first gas pressure exerted on the reaction well and a second gas pressure exerted on the orifice exit must be less than a predetermined amount. Finally, a pressure regulating device is provided for controlling the pressure differential such that upon the pressure differential exceeding the predetermined amount, the reagent solution is expelled from the well through the orifice. [0021]
  • The present invention also includes a method of synthesis of a polymer chain in a synthesis apparatus comprising the steps of: A) aligning the reaction well and a selected one nozzle through the transport mechanism coupled to at least one of the head assembly and the base assembly to produce relative movement therebetween; and B) depositing a liquid reagent into the well from the reagent reservoir through the one nozzle to enable synthesis of a polymer chain. Finally, C) sweeping toxic fumes, emitted by the reagents, from the common chamber through passage of a gas from a pressurized gas source, coupled to an inlet into the common chamber and positioned upstream from the nozzles, and out of the chamber through an outlet out from the common chamber and positioned downstream from the nozzles. [0022]
  • Another method of polymer synthesis is provided for building a polymer chain by sequentially adding polymer units to at least one solid support for growing and immobilizing a polymer chain thereon in a liquid reagent. The method comprises the steps of A) depositing a liquid reagent in the reaction well, having a properly sized orifice, in contact with at least one solid support and at least one polymer unit of the polymer chain affixed to the solid support, and forming a capillary liquid seal to retain the reagent solution in the well to enable polymer chain growth on the solid support. The next step includes B) applying a first gas pressure to the reaction well such that a pressure differential between the first gas pressure and a second gas pressure exerted on an exit of the orifice exceeds a predetermined amount necessary to overcome the capillary liquid -seal and expel the reagent solution from the well through the orifice.[0023]
  • BRIEF DESCRIPTION OF THE DRAWING
  • The assembly of the present invention has other objects and features of advantage which will be more readily apparent from the following description of the Best Mode of Carrying Out the Invention and the appended claims, when taken in conjunction with the accompanying drawing, in which: [0024]
  • FIG. 1 is an exploded top perspective view of the polymer synthesis array apparatus constructed in accordance with the present invention. [0025]
  • FIG. 2 is bottom perspective view of a head assembly of the polymer synthesis array apparatus of FIG. 1 illustrating the recessed nozzle ends. [0026]
  • FIG. 3 is a side elevation view, in cross-section of the polymer synthesis array apparatus of FIG. 1 and showing the sweeping action of the flow of inert gas through the common chamber. [0027]
  • FIG. 4 is a front elevation view, in cross-section of the polymer synthesis array apparatus of FIG. 1 and illustrating the head assembly pivotally mounted to a frame assembly. [0028]
  • FIG. 5 is an enlarged side elevation view, in cross-section, of the polymer synthesis array apparatus taken substantially along the line [0029] 5-5 of FIG. 3 and showing the capillary liquid seal formed between the liquid reagent solution and the corresponding frit and orifice.
  • FIG. 6 is an enlarged side elevation view, in cross-section, of the polymer synthesis array apparatus taken substantially along the line [0030] 6-6 of FIG. 3 and illustrating the balloon seal gasket.
  • FIG. 7 is an enlarged, schematic, top perspective view of a delivery assembly mounted to the head assembly of the polymer synthesis array apparatus. [0031]
  • FIGS. 8A and 8B depict the results of capillary electrophoresis runs of oligonucleotides Nos. 14 and 15, respectively, from Example 1.[0032]
  • BEST MODE OF CARRYING OUT THE INVENTION
  • While the present invention will be described with reference to a few specific embodiments, the description is illustrative of the invention and is not to be construed as limiting the invention. Various modifications to the present invention can be made to the preferred embodiments by those skilled in the art without departing from the true spirit and scope of the invention as defined by the appended claims. It will be noted here that for a better understanding, like components are designated by like reference numerals throughout the various figures. [0033]
  • Attention is now directed to FIGS. 1 and 2 where a polymer synthesis apparatus, generally designated [0034] 20, is shown for building a polymer chain by sequentially adding polymer units to a solid support in a liquid reagent. Incidently, while apparatus 20 is particularly suitable for building sequence defined oligonucleotides, the present invention may be employed for synthesis of any polymer chain. Hence, the term “polymer unit” will be defined as a moiety that is bound to other moieties of the same or a different kind to form a polymer chain, such as olignucleotides and peptide chains.
  • In one embodiment, the synthesis apparatus [0035] 20, briefly, comprises a head assembly, generally designated 21, having a plurality of nozzles 22 (FIG. 2) mounted thereto in generally spaced-apart relation. Each nozzle 22 is coupled to a reservoir 23 (FIG. 7) of liquid reagent 24 for controlled delivery therethrough. Further, a base assembly, generally designated 25, is included having at least one reaction well 26, and a transport mechanism, generally designated 27 (FIG. 3), coupled to at least one of head assembly 21 and base assembly 25 to produce relative movement therebetween. This positions a selected reaction well 26 and a selected nozzle 22 in alignment for deposition of a selected liquid reagent 24 into the reaction well for synthesis of a polymer chain. A sliding seal, generally designated 30, is positioned between the head assembly and the base assembly to form a common chamber 31 (FIG. 3) which encloses both the reaction well and the nozzles therein.
  • In the preferred embodiment, an array of wells [0036] 26 (FIG. 1) is provided formed in a microtiter plate 32 which is carried by a sliding plate 33 of base assembly 25. The synthesis apparatus is particularly configured to employ a 96-well microtiter plate (not all wells shown for ease of illustration), aligned in 12 equally spaced-apart rows 34, each extending transverse to a longitudinal axis 35 of elongated base assembly 25, by 8 equally spaced-apart columns 36 wide. Microtiter plate 32 is preferably fabricated from a chemically inert material such as polypropylene. It of course will be appreciated that any number of wells, or arrangement of rows and columns, could be employed without departing from the true spirit and nature of the present invention.
  • FIGS. 1 and 2 further illustrate that nozzles [0037] 22, mounted to mounting blocks 37 of head assembly 21, are further aligned in an array of nozzle rows 40 and columns 41 similar to the array of wells 26. In the preferred form, the number of nozzle columns 41, each extending parallel to a longitudinal axis 42 of head assembly 21, is equivalent to the number of well columns 36. Accordingly, each nozzle 22 in a particular bank or row 40 of nozzles corresponds to and is aligned with a respective column 36 of wells 26. The nozzles in any one row 40 and column 41 are also equally spaced-apart by the same distance as the spacing between the well rows 34 and columns 36 which permit simultaneous alignment between one or more well rows 34 with selected nozzle rows 40 during a single cycle. That is, the array of wells can be aligned with the array of nozzles along a plurality of positions for simultaneous deposition.
  • This array technique for sequence defined oligonucleotide synthesis first evolved from the high density oligonucleotide array chip assembly for hybridization sequencing disclosed in U.S. patent application Ser. No. 07/754,614, filed Sep. 4, 1991, now pending. Hence, this array technique, alone, is not claimed as a novel feature of the present invention. That assembly, however, is neither suitable nor appropriate for the large-scale production capabilities of the present invention as will be described henceforth. [0038]
  • To simplify organization and manufacture of polymer chains, a delivery assembly [0039] 43 (FIG. 7) of the synthesis apparatus, for controlling delivery of the liquid reagents through the array of nozzles, communicably couples all nozzles 22 in a particular bank or row 40 to a common independent liquid reagent reservoir 23, while each bank or row 40 of nozzles is coupled to a different liquid reagent applied in a particular polymer synthesis. For instance, the first row 40 of nozzles 22 may only dispense the activator tetrazole, while the second row of nozzles dispenses the amidite thymidine. In oligonucleotide synthesis, this order of liquid reagent distribution may continue down the line for the amidites adenosine, cytosine, and guanine, the auxiliary base AnyN, the solvent wash/reaction solvent acetonitrile, the Cap acetic anhydride, the Cap N-methylimidazole, iodine and the deblockers dichloracetic acid or trichloracetic acid; all of which are reagents used for the synthesis of defined sequence oligonucleotides. Incidently, only five rows of nozzles are shown for the ease of illustration. Further, it will be understood that any nozzle contained in the array may be communicably coupled to any reagent reservoir.
  • The delivery assembly [0040] 43 of the present invention communicably couples each bank of nozzles to a common reagent reservoir 23 through independent dispensing tubes 44. Each tube includes a passageway 45 (FIG. 6) and has one end coupled to the respective nozzle and an opposite end terminating in the liquid reagent 24 contained in the reservoir. These tubes are press-fit into apertures 46 extending through mounting blocks 37 and a head plate 47 of head assembly 21. The flexible and semi-resilient nature of each tube 44, preferably TEFLON® which are more resistant to deterioration upon contact with the reagents, provides an adequate seal between the tubing exterior and the respective aperture.
  • A distal end of each tube [0041] 44, as shown in FIGS. 2 and 6, forms nozzle 22 which extends into, but not past, transversely positioned slots 50 which are formed in a bottom surface 51 of head plate 47. Accordingly, each independent nozzle 22 is recessed so as not to interfere with a top surface 52 of base sliding plate 33 during relative sliding movement therebetween. Further, the independent extension of each nozzle into slots 50 promotes removal or discarding of residual liquid reagent accumulated at the end of the nozzle after delivery of reagent therefrom.
  • There are two important concerns in liquid reagent delivery through nozzles [0042] 22: 1) how to eject a droplet cleanly so that a drop is not left hanging on the end of the nozzle; and 2) how to keep the contents of the reaction chamber from splashing when the stream of reagent is delivered into the well. Further, the ejection velocity of the reagent from the nozzle must be sufficient to induce mixing between the first and second delivered reagent in the reaction chamber. Very small droplets can be ejected cleanly at high ejection velocities, but do not have sufficient kinetic energy to overcome the surface tension of the liquid already in the well to cause mixing. In contrast, larger droplets also eject cleanly at high ejection velocities, but tend to splash the contents into adjacent wells. At lower ejection velocities, the reagents tend to leave the last drop hanging from the nozzle tip, which is also a function of the cross-sectional area of the tip. Moreover, the flow rate of liquids through small capillary tubing varies directly with the delivery pressure and inversely with the length of the tube and inversely with the diameter. All these variables must be taken into consideration when developing delivery pressure and nozzle configurations, as well as the materials of construction, so that the reagents can be expelled cleanly without leaving a residual drop of liquid reagent hanging from the nozzle tip. Hence, depending on the liquid reagent, it may be more beneficial to dispense it in a continuous stream, a series of pulses or in droplet form.
  • Each reagent reservoir [0043] 23, as shown in FIG. 7, includes a pressure tube 53 coupled to a compressor device (not shown) which pressurizes reservoir air space 54 to drive the stored liquid reagent from the reservoir and through respective dispensing tubes 44. Delivery of reagents through dispensing tubes 44 is controlled by an array of independent valve assemblies 55 each mounted in-line therewith. These valve assemblies are preferably provided by solenoid driven micro shutoff valves, each capable of opening and closing in less than 5 milliseconds to deliver accurate volumes of liquid reagent.
  • To assure a constant delivery pressure across each dispensing tube [0044] 44, and hence, a constant delivery rate of liquid reagent through any nozzle in a bank or row 40 of nozzles 22, each dispensing tube will independently terminate in the liquid reagent contained in the reagent reservoir. Thus, independent of the number of nozzles set to deliver, this configuration will not suffer uneven rate delivery caused by varying line pressure.
  • In accordance with the present invention, base assembly [0045] 25 and head assembly 21 cooperate with transport mechanism 27 for relative movement between the base assembly and the head assembly to align the array of wells with the array of nozzles at a plurality of positions. Preferably, the transport mechanism moves the base assembly along (phantom lines in FIG. 3) its longitudinal axis 35 such that the wells of each row 34 remain aligned with the nozzle columns 41. Base assembly 25 is, thus, slidably supported by frame assembly 57 (FIGS. 3 and 4) for reciprocating movement in the direction of arrows 60. Sliding plate 33, carrying microtiter plate 32, is slidably received in a track mechanism 61 of frame assembly 57 for aligned movement. Hence, by controlling the delivery of reagent through selected nozzles (via valve assemblies 55), and through manipulation of the transport mechanism, a plurality of homogenous populations of sequence defined polymers can be simultaneously synthesized in selected wells in a rapid and reproducible manner.
  • Transport mechanism [0046] 27 includes a stepped motor assembly 62, schematically represented in FIG. 3, which is operably coupled to sliding plate 33. Hence, base assembly 25 cooperates with track mechanism 61 and the stepped motor for linear incremental movement to align the array of wells with the array of nozzles at a plurality of positions. It will be understood, however, that the transport mechanism can be provided by any motor/track configuration which moves the base assembly relative the head assembly.
  • Before polymer synthesis begins or after the synthesis process has ended, the array of wells may be positioned outside of common chamber [0047] 31 and exposed to the open environment for access by moving the wells 26 (via movement of base assembly 25) to the extreme right or left of sliding seal 30. Hence, the well array may be cleaned or loaded with solid support material, to be discussed. Further, the wells and nozzles, once inside the common chamber, may be accessed through a hinge assembly 63, as shown in FIG. 4, which pivotally mounts head assembly 21 to frame assembly 57.
  • Referring now to FIGS. 1, 3 and [0048] 5, the sliding seal of the present invention will be described. In oligonucleotide synthesis by phosphoramidite coupling, there are two major chemical engineering requirements because the coupling reactions are rapid and irreversible: water and oxygen are preferably both be excluded from the common reaction chamber during synthesis. Phosphoramidites are sensitive to hydrolysis by tracing of water, and to oxidation by contact with air. Sliding seal 30, therefore, is disposed between the bottom surface 51 of head assembly 21 and the top surface 52 of base assembly 25 to environmentally contain both the reaction wells and the nozzles in a common chamber 31. Further, as will be described in greater detail below, by streaming an inert gas through common chamber 31 to sweep the air and water traces from the chamber, hydrolysis and oxidation can be minimized, if not eliminated.
  • Sliding seal [0049] 30 must be formed to maintain environmental containment while permitting the base assembly to slide relative the head assembly. In the preferred form, sliding seal 30 is provided by an elastic, rectangular-shaped, hydrofoil or balloon seal gasket having an upper end mounted to head bottom surface 51, and an opposite or lower end 64 in sliding contact with base top surface 52. This special gasket, preferably composed of rubber or the like, increases seal integrity between gasket lower end 64 and base top surface 52 as the pressure in common chamber increases. FIG. 5 illustrates that gasket lower end 64 peripherally tapers inwardly toward an interior of common chamber 31. Upon increase in chamber pressure, the walls of gasket seal 30 expand outwardly whereby the surface area contact between the gasket lower end and the base top surface increases for better sealing engagement therebetween.
  • To facilitate sliding contact, while maintaining environmental containment, gasket seal [0050] 30 includes a stick-free coating or layer 65 (FIG. 5), preferably TEFLON®, between the gasket lower end and the base top surface. This layer further serves the purpose of protecting the sealing gasket from surface absorption of residual liquid reagents which tend to deteriorate the gasket upon contact, due in part to the elastic nature thereof. As shown in FIG. 5, top surface 52 of the base assembly may also include a coating or layer 66 of TEFLON® to promote sliding contact and for protection of the top surface from residual reagent.
  • It will be understood that the seal between gasket lower end [0051] 64 and base top surface 52 need not be hermetic. The primary function of the seal gasket is to exclude oxygen from the reaction chamber. Thus, it is important to normally maintain a minimum positive pressure inside common chamber 31 at all times during synthesis which is slightly greater than atmospheric pressure so that the flow of gas, should a leak occur, would be outward. This minimum positive pressure differential is generally about {fraction (1/100)} psi to about {fraction (1/10)} psi.
  • As previously indicated and as viewed in FIGS. 3, 5 and [0052] 6, it is desirable to flush the air and water traces from the reaction head space of the chamber with an inert gas, preferably argon, to minimize hydrolysis and oxidation of the amidites during synthesis. It is further desirable to continuously stream the inert gas through the head space to protect sensitive amidites from the capping and deblocker reagents, such as aqueous iodine vapor or trichloroacetic acid, which will react with the amidites This is accomplished by introducing a flow of inert gas (represented by arrows 67) through common chamber 31 from a gas inlet 70, positioned upstream from the array of nozzles 22, which exits the chamber through a gas outlet 71 positioned downstream from the nozzles. Gas inlet 70 is coupled to a gas source (not shown) through inlet tube 72 (FIG. 1) which further provides the positive pressure inside common chamber 31 necessary to exclude the oxygen from the environment. Since the head space of the common chamber is relatively small (exaggerated in the FIGURES for illustration), a sufficient flow of gas past the nozzles can be fashioned to sweep or flush the chamber without expending large volumes of gas.
  • The gas inlet is preferably provided by an elongated inlet slot [0053] 70 (FIG. 2) extending into head plate 47 and aligned transverse to the longitudinal axis 42 of head plate 47. This shape and orientation induces a substantially laminar flow of inert gas from upstream inlet 70 to downstream outlet 71 which minimizes cross flow of gas across the nozzles and sweeps the dead zones of stagnant reagent vapors from the chamber. It will be noted that the gas inlet may also be provided by a series of apertures extending transversely across head plate 47, and that gas outlet 71 may further be provided by an elongated slot or series of apertures.
  • Because of the gas flow through the chamber, the acid and moisture sensitive phophoramides are positioned upstream from the deblocker and capping reagents, forming a diffusion gas barrier, which maximizes the sweeping effect. Accordingly, in FIG. 3, the phosphoramides would be dispensed from nozzles [0054] 22 closer to gas inlet 70, while the cappers, washers and deblockers would be dispensed from the nozzles situated closer to gas outlet 71, downstream from the phosphoramide dispensing nozzles.
  • In another aspect of the present invention, as best viewed in FIGS. 5 and 6, polymer synthesis apparatus [0055] 20 is provided with reaction wells 26 having at least one orifice, generally designated 74, extending into the well. At least one solid support 75 is disposed in the well for growing and immobilizing a polymer chain thereon. Reagent solution 76 in well 26 is in contact with solid support 75 and at least one polymer unit of the polymer chain affixed to the solid support. Orifice 74 has an entrance 77 into well 26 from the common chamber side and an exit 80 out of the well into a lower catch basin 81 below. Importantly, the orifice is of a size and dimension to form a capillary liquid seal with reagent solution 76 contained therein to retain the reagent solution in the well enabling polymer chain growth therein. To further retain solution 76 in wells 26, a pressure differential between a common chamber gas pressure exerted on the reagent solution in reaction wells 26 and a second gas pressure exerted on orifice exits 80 (illustrated by arrows 79 in FIG. 6) must be less than a predetermined amount. Finally, a pressure regulating device 82 is provided for controlling the pressure differential such that upon the pressure differential exceeding the predetermined amount, the reagent solution 76 is expelled from well 26 through orifice 74 (FIG. 5).
  • Briefly, after proper alignment between selected wells [0056] 26′ with selected nozzles 22′ (FIG. 6), using the array technique and novel apparatus above-mentioned, the liquid reagents can be deposited into selected wells 26′. The deposited reagent solutions collects across the correctly dimensioned orifice 74, in combination with a relatively small pressure differential (not greater than the predetermined amount), to form a meniscus across orifice 74 and creating a capillary liquid seal to retain the solution in the well without draining through the orifice. This seal effectively separates the common reaction chamber from the environment of lower catch basin 81 below. After a sufficient amount of time has passed to complete the synthesis reaction (generally about one minute), the reagent solution is purged from well 26 through orifice 74 and into lower catch basin 81 by increasing the gas pressure differential above the predetermined amount which overcomes the capillary forces in the orifice (FIG. 5). Subsequently, the purged reagent solutions may be drawn out of the catch basin through a drain outlet 83. This process is repeated for each synthesis cycle (i.e., deblocking, washing, coupling, capping and oxidizing steps) until the desired defined synthesis polymer is fabricated.
  • A retaining device, generally designated [0057] 84, is included positioned in the bottom of well 26 between orifice 74 and the solid support 75 which is formed and dimensioned to substantially prevent passage of the solid support through the orifice. Retaining device 84 is preferably provided by a polyethylene or glass fiber frit which acts as a filter membrane permitting the reagent solution to flow therethrough while retaining the solid support and polymer chain grown thereon in the well. Hence, the porosity of the frit is also a factor in the formation of the capillary liquid seal and in the determination of the pressure differential necessary to purge the reaction well.
  • To regulate and control pressure differential between common chamber [0058] 31 and lower catch basin 81, as mentioned, pressure regulating device 82 is provided operably coupled therebetween. In the preferred embodiment, pressure regulating device 82 is integrated with the gas flow assembly employed to flush the head space in common chamber 31 of reagent toxins. Upon the inert gas freely sweeping the chamber from gas inlet 70 to gas outlet 71, the minimum pressure differential is generally retained between about {fraction (1/100)} psi to about {fraction (1/10)} psi. This pressure differential which is sufficiently positive to prevent seepage of environmental air into the common chamber, while being insufficient to overcome the capillary forces of the capillary liquid seal in each well. By preventing or restricting the outflow of inert gas through gas outlet 71, the pressure inside chamber 31 can be increased, thereby increasing the pressure differential to purge the wells (FIG. 5) if the catch basin pressure is not increased at the same or greater rate.
  • The pressure regulating device [0059] 82, hence, includes a chamber valve 85 (FIG. 1) coupled to gas outlet 71 for controlling the outflow of inert gas sweeping common chamber 31. Accordingly, by sufficiently closing or restriction flow through chamber valve 85, the pressure differential can be raised above the predetermined amount so that the wells can be purged of reagent solution simultaneously. Similarly, by sufficiently opening chamber valve 85, the pressure differential may be lowered below the predetermined amount when it is desired to retain the deposited liquid solution in the selected wells.
  • The liquid reaction solution will not leak out of or be purged from well orifice [0060] 74 until there is a sufficient head of liquid in the well or a sufficient gas pressure differential between the common chamber and the lower catch basin to overcome the capillary forces in the orifice. The rate of gravity-driven and pressure-driven leakage from the orifice is primarily governed by the viscosity of the solvent, the porosity of the frit, the size of the orifice, and the gas pressure differential. For instance, a 10 μ UHMW polyethylene frit and a 0.015 in2 orifice will support at least 0.79 in. liquid head of acetonitrile (having a viscosity of about 0.345 centipose (7.2×10−5 (lbf·s)/ft2 at an operating temperature of about 68° F.)) before beginning to overcome the capillary forces in the orifice. On the other hand, by increasing the pressure differential above the predetermined amount (generally about 1 psi) to about 5 psi, purging of the well will occur rapidly. In practice, it is necessary to maintain a pressure differential between about 2.5 psi to about 5 psi to sufficiently purge the reaction wells simultaneously of reagent solution. As the individual wells begin to empty, the flow rate of inert gas through the empty wells of the microtiter plate substantially increases which decreases the pressure in common chamber 31. Accordingly, this decrease in interior pressure further decreases the purging or draining rate of the reagent solution through the orifices, an effect magnified by retaining filter membrane 84.
  • It will be appreciated that the pressure differential may also be created by forming a vacuum in lower catch basin [0061] 81 to purge the reaction wells. FIG. 1 illustrates that an access opening 86 into lower catch basin 81 may be sealed by a cover 87, and drain outlet 83 may be coupled to a vacuum pump which creates a vacuum in the basin. The pressure differential may also be created from a combination of positive pressure in common chamber 31 and a vacuum in catch basin 81. Further, since the reagent solution is allowed to collect in the reaction well for reaction thereof rather than continuously streaming through the chamber, as is employed by some other prior art assemblies, reagent consumption is substantially minimized thereby saving costs. Labor costs are also reduced by minimizing each cycle time.
  • To coordinate all the simultaneous functions, a control mechanism [0062] 90 (FIG. 7) is operably coupled between transport mechanism 27, valve assemblies 55 and pressure regulating device 82. A sequence file can be input which contains an ordered list of the well position, scale, final deblocking instruction and the ATGC and N (odd Base) sequence for each oligonucleotide. This file cooperates with a command file used to indicate the actual number and order of Deblock/Wash/Couple/Cap/Oxidize steps and the length of time for Wait and pressure and/or vacuum Drain steps which define the complete coupling cycle.
  • Oligonucleotides are typically synthesized on solid supports of controlled pored glass (CPG) having the first nucleotide previously linked to the CPG through the 3′-succinate linkage. Hence, upon preparation for polymer synthesis, each well is individually loaded with the correct CPG derivative. While one could begin a full plate of synthesis using only one CPG derivative, for example T (i.e., dT-Icaa-CPG), it is more desirable to perform array synthesis where any base can be in the first position. However, individually weighing and transferring 0.5 mg quantities of the appropriate dry CPG derivative to each well can be tedious and time consuming. [0063]
  • In accordance with the present invention, a balanced density slurry technique is employed to deposit the correct amount of CPG into a reaction well. By suspending the CPG in a suspension solution, a desired amount of CPG can be accurately deposited in a well by pipetting, either automatically or manually, a corresponding volume of suspension solution therein. For example, a non-settling 10%→1% weight/volume suspension of CPG can be prepared in a 2.5:1 volume/volume dibromomethane-dichloromethane solution. Subsequently, the CPG can be washed and purged of suspension solution before synthesis using the technique mentioned above. [0064]
  • In another aspect of the present invention, a method of synthesis of a polymer chain is provided comprising the steps of: A) aligning reaction well [0065] 26 and a selected one nozzle 22 of synthesis apparatus 20 through transport mechanism 27 coupled to at least one of head assembly 21 and base assembly 25 to produce relative movement therebetween; and B) depositing a liquid reagent 24 into well 26 from reagent reservoir 23 through the one nozzle to enable synthesis of a polymer chain. Finally, C) sweeping toxic fumes, emitted by the reagents, from common chamber 31 through passage of a gas from a pressurized gas source, coupled to an inlet 70 into common chamber 31 and positioned upstream from the nozzles, and out of the chamber through an outlet 71 out from the common chamber and positioned downstream from the nozzles.
  • Another method of polymer synthesis is provided for building a polymer chain by sequentially adding polymer units to at least one solid support for growing and immobilizing a polymer chain thereon in a liquid reagent. The method comprises the steps of A) depositing liquid reagent [0066] 24 in reaction well 26, having a properly sized orifice 74, in contact with at least one solid support 75 and at least one polymer unit of the polymer chain affixed to solid support 75, and forming a capillary liquid seal to retain the reagent solution in well 26 to enable polymer chain growth on solid support 75. The next step includes B) applying a first gas pressure to reaction chamber 31 such that a pressure differential between the first gas pressure and a second gas pressure exerted on an exit 80 of orifice 74 exceeds a predetermined amount necessary to overcome the capillary liquid seal and expel the reagent solution from well 26 through orifice 74.
  • By repeating the steps of the two above-mentioned methods, one continuous chain of polymer units can be formed. [0067]
  • The following example serves to more fully describe the manner of using the above-described invention, as well as to set forth the best mode contemplated for carrying out various aspects of the invention. It is to be understood that this example in no way serves to limit the true scope of the invention, but rather are presented for illustrative purposes. It is to be understood that any method of oligonucleotide synthesis may be utilized in the present invention. [0068]
  • EXAMPLE 1 Synthesis of an Array of 15 Oligonucleotides
  • The general synthesis procedure follows published procedures for the phosphoramidite and hydrogen phosphonate methods of oligonucleotide synthesis; for example, the methods outlined in Oligonucleotides and Analogues: A Practical Approach, F. Eckstein, Ed. IRL Press, Oxford University; Oligonucleotide Synthesis: A Practical Approach, Gait, Ed., IRL Press, Washington D.C.; and U.S. Pat. Nos. 4,458,066, 4,500,707 and 5,047,524, all hereby incorporated by reference. It is to be understood that other methods of oligonucleotide synthesis may be used in the present invention. [0069]
  • In general, the basic steps of the synthesis reaction are as follows, with appropriate acetonitrile washing steps: [0070]
  • a) the first nucleoside, which has been protected at the 5′ position, is derivatized to a solid support, usually controlled pore glass (CPG), or is obtained prederivatized; [0071]
  • b) the sugar group of the first nucleoside is deprotected or detritlyated, using tricholoracetic-methylene chloride acid, which results in a colored product which may be monitored for reaction progress; [0072]
  • c) the second nucleotide, which has the phosphorus, sugar and base groups protected, is added to the growing chain, usually in the presence of a tetrazole catalyst; [0073]
  • d) unreacted first nucleoside is capped to avoid perpetuating errors, using acetic anhydride and N-methylimidazole; [0074]
  • e) the phosphite triester is oxidized to form the more stable phosphate triester, usually using iodine reagents; [0075]
  • f) the process is repeated as needed depending on the desired length of the oligonucleotide; and [0076]
  • g) cleavage from the solid support is done, usually using aqueous ammonia at elevated temperatures over a period of hours. [0077]
  • Accordingly, a sequence file was generated which indicated the 3′-5′ sequence and well number for each oligonucleotide to be synthesized, the scale of the reaction for each nucleotide, and whether a final detritylation was to be performed on the product at the end of the reaction. The software was designed to support simultaneous independent synthesis of oligonucleotides of different lengths and scale. The sequence of the 15 different oligonucleotides is shown in Table 1 below. [0078]
    TABLE 1
    Number Sequence
    1 AAG TCT TGG ACT TAG AAG CC
    2 GGG TCA CTT CTT TGT TTT CG
    3 CCT TTA CTT TTC GGT CAA GG
    4 TGA CTG GTA GGT CCA CTG CA
    5 ACC TCA CTT CGG TAA CTT AAA
    6 CCA AAT TTT GAG GTA ACC ACT T
    7 GTG CTA TCC GGG ACA CCA
    8 GGA AGA TCC ACG AGT CGT TT
    9 CGT CCA CCT CTT CTT TGA AGA
    10 TGG TAG TAA TCC TAC CGT CT
    11 GCG AAG GTC TAC TCT CGT C
    12 GTT CAG AGT AAG GAG TCG TGG
    13 GTG GAA CCA TAG ACA ACC ACA TAT
    14 TTG TTC ATC TTT GTG TAG GGT AC
    15 AGA AAA GTC ACG GTC ACA CT
  • A command file was generated which contained the sequence of reaction steps performed during a coupling cycle. The basic commands were WASH (volume), DEBLOCK (volume), COUPLE, CAP, OXIDIZE, WAIT (seconds) and DRAIN (pressure/vacuum seconds), as shown in Table 2 below: [0079]
    TABLE 2
    Step
    Number Step Volume (λ) Time (sec)
     1 Deblock 125
     2 Wait  5
     3 Drain 15
     4 Wash 200
     5 Drain 15
     6 Wash 300
     7 Drain 20
     8 Wash 200
     9 Drain 20
    10 Couple
    11 Couple
    12 Wait 150 
    13 Drain 10
    14 Wash 200
    15 Drain 15
    16 Cap
    17 Wait 40
    18 Drain 10
    19 Wash 200
    20 Drain 15
    21 Oxidize 40
    22 Wait 10
    23 Drain 300
    24 Wash 20
    25 Drain 200
    26 Wash 20
    27 Drain
  • A configuration file was generated which contained the operating characteristics of the machine, the liquid flow rates, the concentration and molar equivalents used for each of the reagents, as shown in Table 3 below. [0080]
    TABLE 3
    reagent concentration flow rate molar excess
    acetonitrile 220 λ/sec
    trichloroaceticmethylene 125 λ/sec
    chloride acid
    tetrazole 0.45 M 210 λ/sec 250
    acetic anhydride 210 λ/sec 500
    N-methylimidazole 210 λ/sec 500
    iodine 210 λ/sec 150
    phosphoramidite 0.1 M 210 λ/sec
  • 96 well plates were used which have a conical lower section which has been recessed to receive a pressed-fit 0.196 inch filter disk. Below the filter was the flow restriction and capillary liquid seal orifice, 0.020 inch diameter×0.350 inch length. The outside diameter of the capillary seal at the exit tip was 0.035 inch. When fitted with Whatman GF/A filters, the gas flow rate through a completely dry plate at an upper chamber pressure of 1 psi was 10 liters per minute. At 0.02 psi upper chamber pressure, the capillary seal at the bottom of the synthesis well supported an acetonitrile liquid head of approximately 1 cm above the filter before slow leakage commenced. The plates were fabricated of molded polypropylene. [0081]
  • To each well was added the correct amount of CPG with derivatized first base, either A, T, C, or G. For example, 0.5 mg CPG was used in a 20 nanomole scale reaction. The CPG beads were added as a slurry in dibromomethane-chloroform pipetted into each well. This step was performed in ordinary lab atmosphere prior to loading the plate into the machine. After loading the plate into the machine, a WASH acetonitrile cycle was done to rinse the slurry, and to verify that all wells were draining properly. [0082]
  • The nozzle valve reservoirs were flushed with argon and then filled with fresh reagents from the supply bottles by pressurized transfer to avoid air and water contamination. The valve reservoirs were then pressurized to the configuration pressure (4 psi). The nozzle tubing was then primed by dispensing a small amount of liquid with the sliding plate in the purge position for each reagent. [0083]
  • During reagent addition and reaction wait periods, the laminar gas sweep flow across the reaction chamber was regulated to 0.4 liter per minutes with an internal pressure of approximately 0.02 psi. During spent reagent removal and washing cycles, the chamber pressure was increased to a maximum of 5 psi. At 2.5 psi, the synthesis wells drained at a rate of approximately 150 λ/sec. [0084]
  • The machine was then switched into AUTOmatic mode in order to commence actual synthesis. The machine paused during the first, second and last cycles in order to allow collection of the DEBLOCK trityl products for calorimetric analysis. This was accomplished by sliding a second 96-well microtiter plate into the lower vacuum/drain chamber, immediately beneath the capillary exit tips of the synthesis plate. The optical density of detritylation solution at 490 nanometers was read using a plate reader. The value for the first cycle confirmed the amount of CPG loaded into a well, and comparison of the second cycle with the last cycle permitted calculation of the synthesis coupling efficiency. The final cycle value also indicated the amount of oligonucleotide which will be obtained after sidechain deprotection by ammonia cleavage. [0085]
  • After the machine completed the synthesis in all the wells, the synthesis plate was removed from the machine. The synthesis plate was stacked on top of a second 96 well deprotection plate (Beckman deep-well titer plate 267001). The oligonucleotides were cleaved from the support by pipetting 200 microliters of concentrated NH[0086] 4OH into each well followed by incubation at 25° C. for 15 minutes. The ammonium cleavage solutions were eluted through the filter and capillary exit into the wells of the deprotection plate by pressure, vacuum or preferably brief centrifugation of the stack. This cleavage step was repeated twice with fresh aliquots of ammonia.
  • If the phosphoramidites used for synthesis had benzoyl and isobutyryl protecting groups, the final deprotection was completed by heating the crude ammonia cleavage product. The wells of the deprotection titer plate were sealed with a dimpled silicon rubber cap (Beckman 267002), and the caps held in place using a spring-loaded plate press. The sealed apparatus was heated in an air oven or water bath at 55° C. for 8-15 hours, and then cooled in an ice bath. The deprotection plate was removed from the press and centrifuged briefly prior to removing the cap. [0087]
  • The ammonia solution was then evaporated to dryness using a Savant 210 Speed Vac equipped with a microplate rotor. The oligonucleotide pellets thus obtained were generally sufficiently pure for use directly in most sequencing primer and PCR applications. The amount of oligonucleotide predicted by the last trityl assay was verified by optical density at 260 nanometers, and the homogeneity of the product assayed by HPLC or capillary gel electrophoresis. Capillary electrophoresis analysis was performed on an Applied Biosystems 270A instrument according to the manufacturer's protocois for oligonucleotides 14 and 15 from the above run are shown in FIGS. 8A and 8B, respectively. Typical yields for a 20 nanomolar scale synthesis of a 20-mer were 2.5 OD (85 micrograms). [0088]

Claims (71)

What is claimed is:
1. A polymer synthesis apparatus for building a polymer chain by sequentially adding polymer units to a solid support in a liquid reagent comprising:
a base assembly including a reaction well, and having at least one orifice extending into said well;
at least one solid support disposed in said well for growing and immobilizing a polymer chain thereon;
reagent solution in said well in contact with said solid support and at least one polymer unit of said polymer chain affixed to said solid support;
retaining means positioned in said well, and formed and dimensioned to substantially prevent passage of said solid support through said orifice;
said orifice having an entrance into said well and an exit, and being of a size and dimension to form a capillary liquid seal to retain said reagent solution in said well to enable polymer chain growth therein when a pressure differential between a first gas pressure exerted on said reaction well and a second gas pressure exerted on said orifice exit is less than a predetermined amount; and
a pressure regulating device for controlling said pressure differential such that upon said pressure differential exceeding said predetermined amount, said reagent solution being expelled from said well through said orifice.
2. The polymer synthesis apparatus as defined in claim 1 wherein,
said retaining means comprises a filter member disposed in said well between said one orifice and said support structure.
3. The polymer synthesis apparatus as defined in claim 2 wherein,
said filter member is composed of a glass fiber frit.
4. The polymer synthesis apparatus as defined in claim 2 wherein,
said filter member and said orifice cooperate in a manner forming said capillary liquid seal.
5. The polymer synthesis apparatus as defined in claim 1 further including:
a top chamber mechanism cooperating with a top surface of said base assembly to form a top chamber enclosing said reaction well therein, said regulating device communicating with said top chamber to regulate said pressure differential.
6. The polymer synthesis apparatus as defined in claim 1 wherein,
said solid support is provided by controlled pore glass (CPG).
7. The polymer synthesis apparatus as defined in claim 1 wherein,
said polymer chain is an oligonucleotide.
8. The polymer synthesis apparatus as defined in claim 1 further including:
a bottom chamber mechanism cooperating with a bottom surface of said base assembly to form a bottom chamber enclosing said orifice therein, said regulating device communicating with said bottom chamber to regulate said pressure differential.
9. A polymer synthesis apparatus for building a polymer chain by sequentially adding polymer units in a reagent solution, said apparatus comprising:
a head assembly having a plurality of nozzles mounted thereto in generally spaced-apart relation, each nozzle being coupled to a reservoir of liquid reagent for controlled delivery therethrough;
a base assembly having at least one reaction well;
a transport mechanism coupled to at least one of said head assembly and said base assembly to produce relative movement therebetween to position said reaction well and a selected one nozzle in alignment for deposition of a liquid reagent into said reaction well for synthesis of a polymer chain; and
a sliding seal positioned between said head assembly and said base assembly forms a common chamber enclosing both said reaction well and said nozzles therein.
10. The polymer synthesis apparatus as defined in claim 9 wherein,
each said nozzle terminates proximate a substantially planar bottom surface of said head assembly, and
said base assembly includes a substantially planar top surface in opposed relation to said head bottom surface.
11. The polymer synthesis apparatus as defined in claim 10 wherein,
said sliding seal is provided by a balloon seal having one end affixed to one of said head bottom surface and said base top surface, and an opposite end in sliding contact with the other of said base top surface and said head bottom surface.
12. The polymer synthesis apparatus as defined in claim 11 wherein,
said opposite end tapers radially inwardly toward an interior portion of said chamber in a manner such that upon increase in pressure in said chamber, the seal integrity between said opposite end and the other of said base top surface and said head bottom surface increases.
13. The polymer synthesis apparatus as defined in claim 11 wherein,
said seal opposite end includes a substantially stick-free coating or layer in sliding contact with the other of said base top surface and said head bottom surface.
14. The polymer synthesis apparatus as defined in claim 11 wherein,
said coating or layer comprises TEFLON®.
15. The polymer synthesis apparatus as defined in claim 11 wherein,
the other of said base top surface and said head bottom surface in sliding contact with said seal opposite end includes a substantially stick-free coating or layer therebetween.
16. The polymer synthesis apparatus as defined in claim 15 wherein,
said coating or layer comprises TEFLON®.
17. The polymer synthesis apparatus as defined in claim 12 wherein,
said seal one end is mounted to said base bottom surface, and said seal opposite end is in sliding contact with said base top surface.
18. The polymer synthesis apparatus as defined in claim 9 wherein,
said transport mechanism includes a stepped motor operably coupled to one of the head assembly and the base assembly for incremental movement thereof.
19. The polymer synthesis apparatus as defined in claim 9 wherein,
said transport mechanism is operably coupled to said base assembly for movement thereof.
20. The polymer synthesis apparatus as defined in claim 19 wherein,
said transport mechanism includes a stepped motor operably coupled to the base assembly for incremental substantially linear movement relative said nozzles.
21. The polymer synthesis apparatus as defined in claim 9 wherein,
said base assembly including a reaction well and at least one orifice extending into said well, said orifice having an entrance into said well and an exit, and being of a size and dimension to form a capillary liquid seal to retain said deposited liquid reagent in said well to enable polymer chain growth therein when a pressure differential between a first gas pressure in said chamber and a second gas pressure exerted on said orifice exit is less than a predetermined amount.
22. The polymer synthesis apparatus as defined in claim 21 further including:
a pressure regulating device for controlling said pressure differential such that upon said pressure differential exceeding said predetermined amount, said reagent solution being expelled from said well through said orifice.
23. The polymer synthesis apparatus as defined in claim 22 further including:
at least one solid support disposed in said well for growing and immobilizing said polymer chain thereon;
said liquid reagent deposited in said well in contact with said solid support and at least one polymer unit of said polymer chain affixed to said solid support; and
retaining means positioned in said well, and formed and dimensioned to substantially prevent passage of solid support through said orifice.
24. The polymer synthesis apparatus as defined in claim 23 wherein,
said retaining means comprises a filter member disposed in said well between said one orifice and said support structure.
25. The polymer synthesis apparatus as defined in claim 21 wherein,
said pressure regulating device includes an inlet into said common chamber positioned upstream from said nozzles, an outlet out of said common chamber positioned downstream from said nozzles, and a pressurized gas source coupled to said inlet for continuously streaming a gas from said gas source through said common chamber from said chamber upstream to said chamber downstream and out said outlet to sweep said chamber of toxic fumes emitted by said reagents.
26. The polymer synthesis apparatus as defined in claim 25 wherein,
said regulating device further includes a chamber valve coupled to said outlet controlling outflow of said gas from said chamber for one of raising said pressure differential above said predetermined amount and lowering said pressure differential below said predetermined amount.
27. The polymer synthesis apparatus as defined in claim 25 wherein,
said inlet and said outlet are defined by said head assembly.
28. The polymer synthesis apparatus as defined in claim 22 wherein,
said base assembly includes a top surface defining said well, and a opposite facing bottom surface, said orifice extending from said bottom surface to said top surface and into said well, and said synthesis apparatus further including:
a bottom chamber mechanism cooperating with said base bottom surface to form a bottom chamber enclosing said orifice therein, said regulating device communicating with said bottom chamber to form a vacuum for regulation of said pressure differential.
29. The polymer synthesis apparatus as defined in claim 9 wherein,
each said nozzle terminates proximate a substantially planar bottom surface of said head assembly,
said base assembly includes a substantially planar top surface in opposed relation to said head bottom surface, and
said sliding seal is provided by a balloon seal having one end affixed to one of said head bottom surface and said base top surface, and an opposite end in sliding contact with the other of said base top surface and said head bottom surface.
30. The polymer synthesis apparatus as defined in claim 29 wherein,
said opposite end tapers radially inwardly toward an interior portion of said chamber in a manner such that upon an increase in pressure in said chamber, the seal integrity between said opposite end and the other of said base top surface and said head bottom surface increases.
31. The polymer synthesis apparatus as defined in claim 9 wherein,
said reservoir, coupled to each said nozzle, comprises a plurality of independent reagent reservoirs each including a different reagent to be selectively and sequentially deposited in said well in a predetermined manner through a respective nozzle.
32. The polymer synthesis apparatus as defined in claim 31 wherein,
said transport mechanism includes a stepped motor operably coupled to said base assembly for incremental movement and alignment of said well with said respective nozzle for deposition of the selected reagent.
33. The polymer synthesis apparatus as defined in claim 31 wherein,
each nozzle communicates with said respective reservoir through a tube having a passageway communicably coupled therebetween, and
each tube includes a valve assembly in-line with said passageway to control passage of the reagent solution therethrough.
34. The polymer synthesis apparatus as defined in claim 33 further including:
control means operably coupled to said transport mechanism and each valve assembly for controlled sequential movement of said well relative each said nozzle and for deposition of said reagent solution therein.
35. The polymer synthesis apparatus as defined in claim 31 further including:
an inlet into said common chamber positioned upstream from said nozzles;
an outlet out of said common chamber positioned downstream from said nozzles; and
a pressurized gas source coupled to said inlet for continuously streaming a gas through said common chamber from said chamber upstream to said chamber downstream and out said outlet to sweep said chamber of toxic fumes emitted by said reagents.
36. The polymer synthesis apparatus as defined in claim 35 wherein,
said pressurize gas is an inert gas.
37. The polymer synthesis apparatus as defined in claim 36 wherein,
said inert gas is argon.
38. The polymer synthesis apparatus as defined in claim 35 wherein,
said inlet is positioned upstream of said nozzles by a sufficient distance such that said continuous stream is substantially laminar during passage thereby.
39. The polymer synthesis apparatus as defined in claim 38 wherein,
said independent reagent reservoirs are coupled to said nozzles in a manner aligning said reagents with increasing toxicity from said chamber upstream to said chamber downstream.
40. The polymer synthesis apparatus as defined in claim 31 wherein,
said base assembly includes a plurality of wells aligned in an array, and
said transport mechanism is formed to align any one nozzle with any one well.
41. The polymer synthesis apparatus as defined in claim 40 wherein,
said array is provided by a plurality of spaced-apart well rows and columns, and
said nozzles are aligned in an array having nozzle rows and columns spaced-apart by a distance substantially similar to the spacing between said spaced-apart well rows and columns for alignment therebetween such that selected wells may be simultaneously deposited with a selected reagent.
42. The polymer synthesis apparatus as defined in claim 41 wherein,
said transport mechanism includes a stepped motor operably coupled to said base assembly for linear incremental movement of said wells along a path substantially parallel with said plurality of well columns for alignment with respective nozzles for deposition of the selected reagent.
43. The polymer synthesis apparatus as defined in claim 41 wherein,
respective nozzles of each nozzle row are coupled to one reagent reservoir of said plurality of independent reagent reservoirs.
44. The polymer synthesis apparatus as defined in claim 41 wherein,
each nozzle communicates with said respective reagent reservoir through a tube forming a passageway and having one end coupled to said nozzle and an opposite end terminating in said reagent reservoir, and
each tube includes a valve assembly in-line with said respective passageway to control passage of the reagent solution therethrough.
45. The polymer synthesis apparatus as defined in claim 44 wherein,
each said independent reagent reservoir is pressurized to expel said liquid reagent therefrom through respective tubes.
46. The polymer synthesis apparatus as defined in claim 44 further including:
control means operably coupled to said transport mechanism and each valve assembly for controlled sequential movement of said well relative each said nozzle and for deposition of said reagent solution therein.
47. The polymer synthesis apparatus as defined in claim 41 wherein,
said base assembly includes an array of reaction wells and at least one respective orifice extending into a respective well, each orifice having an entrance into said well and an exit, and being of a size and dimension to form a capillary liquid seal to retain deposited liquid reagent in selected wells to enable polymer chain growth therein when a pressure differential between a first gas pressure in said chamber and a second gas pressure exerted each orifice exit is less than a predetermined amount.
48. The polymer synthesis apparatus as defined in claim 47 further including:
a pressure regulating device for controlling said pressure differential such that upon said pressure differential exceeding said predetermined amount, said reagent solution being expelled from said well through said orifice.
49. The polymer synthesis apparatus as defined in claim 48 wherein,
said pressure regulating device includes an inlet into said common chamber positioned upstream from said array of nozzles, an outlet out of said common chamber positioned downstream from said array of nozzles, and a pressurized gas source coupled to said inlet for continuously streaming a gas from said gas source through said common chamber from said chamber upstream to said chamber downstream and out said outlet to sweep said chamber of toxic fumes emitted by said reagents.
50. The polymer synthesis apparatus as defined in claim 49 wherein,
said regulating device further includes a chamber valve coupled to said outlet controlling outflow of said gas from said chamber for one of raising said pressure differential above said predetermined amount and lowering said pressure differential below said predetermined amount.
51. The polymer synthesis apparatus as defined in claim 50 wherein,
said inlet and said outlet are defined by said head assembly.
52. The polymer synthesis apparatus as defined in claim 51 wherein,
said inlet is provide d by an inlet slot extending substantially transversely across said common chamber such that said continuous stream is substantially laminar during passage by said array of nozzles.
53. The polymer synthesis apparatus as defined in claim 52 wherein,
said outlet is provided by an outlet slot extending substantially transversely across said common chamber.
54. The polymer synthesis apparatus as defined in claim 9 further including:
a frame assembly upon which said head assembly is pivotally mounted between a closed position, sealing said common chamber, and an open position, permitting access to said nozzles and said wells.
55. The polymer synthesis apparatus as defined in claim 54 wherein,
said base assembly is movable mounted to said frame assembly, and
said transport mechanism includes a stepped motor operably coupled to said base assembly for incremental movement and alignment of said well with said respective nozzle for deposition of the selected reagent.
56. A polymer synthesis apparatus for building a polymer chain by sequentially adding polymer units in a liquid reagent, said apparatus comprising:
a frame assembly;
a base assembly movably mounted to said frame assembly and including an array of reaction wells aligned in a plurality of spaced-apart well rows and columns, each well having at least one respective orifice extending into said well;
a head assembly mounted to said frame assembly and having an array of nozzles aligned in a plurality of nozzle rows and columns spaced-apart by a distance substantially similar to the spacing between said well rows and columns for alignment therebetween, each nozzle being coupled to a reservoir of liquid reagent for controlled delivery therethrough;
a transport mechanism coupled to said base assembly for moving support, relative said head assembly, along a path substantially parallel to said nozzle columns to position at least one row of reaction wells in depository alignment with a selected row of nozzles for simultaneous deposition of a liquid reagent into selected reaction wells for synthesis of polymer chains;
a sliding seal positioned between said head assembly and said base assembly, and enclosing all said reaction wells and all said nozzles therein to form a common chamber;
each said well orifice being of a size and dimension to form a capillary liquid seal to retain said deposited liquid reagent in said selected wells to enable polymer chain growth therein when a pressure differential between a first gas pressure in said chamber and a second gas pressure exerted each orifice exit is less than a predetermined amount; and
a pressure regulating device for controlling said pressure differential such that upon said pressure differential exceeding said predetermined amount, said liquid reagent being expelled from respective wells through respective orifices.
57. The polymer synthesis apparatus as defined in claim 56 wherein,
said sliding seal is provided by a balloon seal having one end affixed to a bottom surface of said head assembly, and an opposite end in sliding contact with a top surface of said base assembly.
58. The polymer synthesis apparatus as defined in claim 57 wherein,
said transport mechanism includes a stepped motor operably coupled to said base assembly for linear incremental movement of said reactions wells along said path.
59. The polymer synthesis apparatus as defined in claim 58 wherein,
respective nozzles of each nozzle row are coupled to one reagent reservoir of said plurality of independent reagent reservoirs.
60. The polymer synthesis apparatus as defined in claim 59 wherein,
each nozzle communicates with said respective reagent reservoir through a tube forming a passageway and having one end coupled to said nozzle and an opposite end terminating in said reagent reservoir, and
each tube includes a valve assembly in-line with said respective passageway to control passage of the reagent solution therethrough.
61. The polymer synthesis apparatus as defined in claim 60 wherein,
said pressure regulating device includes an inlet into said common chamber positioned upstream from said array of nozzles, an outlet out of said common chamber positioned downstream from said array of nozzles, and a pressurized gas source coupled to said inlet for continuously streaming a gas from said gas source through said common chamber from said chamber upstream to said chamber downstream and out said outlet to sweep said chamber of toxic fumes emitted by said reagents.
62. The polymer synthesis apparatus as defined in claim 61 wherein,
said regulating device further includes a chamber valve coupled to said outlet controlling outflow of said gas from said chamber for one of raising said pressure differential above said predetermined amount and lowering said pressure differential below said predetermined amount.
63. A method of synthesis for building a polymer chain by sequentially adding polymer units to at least one solid support for growing and immobilizing a polymer chain thereon in a liquid reagent, said method comprising the steps of:
A) depositing a liquid reagent in a reaction well in contact with at least one solid support and at least one polymer unit of said polymer chain affixed to said solid support, said well having at least one orifice extending into said well, and being of a size and dimension to form a capillary liquid seal to retain said reagent solution in said well to enable polymer chain growth on said solid support; and
B) applying a first gas pressure to said reaction well such that a pressure differential between said first gas pressure and a second gas pressure exerted on an exit of said orifice exceeds a predetermined amount necessary to overcome said capillary liquid seal and expel said reagent solution from said well through said orifice.
64. The method of synthesis for building a polymer chain as described in claim 63 further comprising the step of:
controlling said pressure differential through a pressure regulating device for one of raising said pressure differential above said predetermined amount and lowering said pressure differential below said predetermined amount.
65. The method of synthesis for building a polymer chain as described in claim 63 further comprising the step of:
repeating steps A and B to form at least one continuous chain of polymer units.
66. The method of synthesis for building a polymer chain as described in claim 63 wherein, said predetermined amount is between about {fraction (1/100)}th psi to about {fraction (1/10)}th psi.
67. A method of synthesis of a polymer chain in a synthesis apparatus by sequentially adding polymer units thereto, said synthesis apparatus including a head assembly having a plurality of nozzles mounted thereto in generally spaced-apart relation, each nozzle being coupled to a reservoir of liquid reagent for controlled delivery therethrough, a base assembly having at least one reaction well, and a sliding seal positioned between said head assembly and said base assembly to permit relative movement therebetween, and enclosing both said reaction well and said nozzles therein to form a common chamber, said method comprising the steps of:
A) aligning said reaction well and a selected one nozzle through a transport mechanism coupled to at least one of said head assembly and said base assembly to produce relative movement therebetween;
B) depositing a liquid reagent into said well from said reagent reservoir through said one nozzle to enable synthesis of a polymer chain;
C) sweeping toxic fumes, emitted by said reagents, from said common chamber through passage of a gas from a pressurized gas source, coupled to an inlet into said common chamber and positioned upstream from said nozzles, and out of said chamber through an outlet out from said common chamber and positioned downstream from said nozzles.
68. The method of synthesis a polymer chain as described in claim 67 further comprising the step of:
D) expelling said deposited liquid reagent from said well through an orifice extending into said well by applying a first gas pressure to said common chamber such that a pressure differential between said first gas pressure and a second gas pressure exerted on an exit of said orifice exceeds a predetermined amount necessary to overcome a capillary liquid seal formed between said liquid reagent and orifice to retain said liquid reagent in said well.
69. The method of synthesis a polymer chain as described in claim 68 further comprising the step of:
repeating steps A-D to form at least one continuous chain of polymer units.
70. The method of synthesis a polymer chain as described in claim 68 wherein,
said expelling step is accomplished by controlling out flow of said gas through said chamber outlet to increase said pressure differential, by increasing first gas pressure, to a degree exceeding said predetermined amount.
71. The method of synthesis a polymer chain as described in claim 70 wherein,
said controlling step is accomplished by a chamber valve coupled to said chamber outlet for control of passage of said gas therethrough.
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030118717A1 (en) * 2001-12-24 2003-06-26 Peck Bill J. Fluid exit in reaction chambers
US20030156989A1 (en) * 2000-06-03 2003-08-21 Adam Safir Parallel semicontinuous or continuous reactors
US20040152200A1 (en) * 2003-01-20 2004-08-05 Deshmukh A. Jay Method and automated fluidic system for detecting protein in biological sample
US20070134785A1 (en) * 2002-01-28 2007-06-14 Nanosphere, Inc. DNA Hybridization Device and Method
US10040048B1 (en) 2014-09-25 2018-08-07 Synthego Corporation Automated modular system and method for production of biopolymers

Families Citing this family (287)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5472672A (en) * 1993-10-22 1995-12-05 The Board Of Trustees Of The Leland Stanford Junior University Apparatus and method for polymer synthesis using arrays
US6558633B1 (en) * 1994-09-21 2003-05-06 Isis Pharmaceuticals, Inc. Chemical reaction apparatus and methods
US5585069A (en) * 1994-11-10 1996-12-17 David Sarnoff Research Center, Inc. Partitioned microelectronic and fluidic device array for clinical diagnostics and chemical synthesis
AU4016095A (en) * 1994-11-18 1996-06-17 Procter & Gamble Company, The Oral compositions
US6239273B1 (en) 1995-02-27 2001-05-29 Affymetrix, Inc. Printing molecular library arrays
US5599695A (en) * 1995-02-27 1997-02-04 Affymetrix, Inc. Printing molecular library arrays using deprotection agents solely in the vapor phase
WO1996030393A1 (en) * 1995-03-27 1996-10-03 Warner-Lambert Company A method for the synthesis of mixtures of compounds
US5759779A (en) * 1995-08-29 1998-06-02 Dehlinger; Peter J. Polynucleotide-array assay and methods
US5763263A (en) * 1995-11-27 1998-06-09 Dehlinger; Peter J. Method and apparatus for producing position addressable combinatorial libraries
US5716584A (en) * 1995-09-07 1998-02-10 Pathogenesis Corporation Device for the synthesis of compounds in an array
US7026114B1 (en) * 1995-09-13 2006-04-11 Affymetrix, Inc. Methods and compositions for monitoring polymer array synthesis
US5888830A (en) * 1995-09-22 1999-03-30 Berlex Laboratories, Inc. Apparatus and process for multiple chemical reactions
KR19990063660A (en) * 1995-09-22 1999-07-26 벌렉스 래보라토리즈, 인크. Apparatus and method for a multi-reaction
GB9521775D0 (en) * 1995-10-24 1996-01-03 Pa Consulting Services Microwell plates
US6660233B1 (en) * 1996-01-16 2003-12-09 Beckman Coulter, Inc. Analytical biochemistry system with robotically carried bioarray
EP2368897B1 (en) * 1996-02-09 2016-10-19 Cornell Research Foundation, Inc. Detection of nucleic acid sequence differences using the ligase detection reaction with addressable arrays
US6063633A (en) * 1996-02-28 2000-05-16 The University Of Houston Catalyst testing process and apparatus
US5840256A (en) * 1996-04-09 1998-11-24 David Sarnoff Research Center Inc. Plate for reaction system
AU2609997A (en) * 1996-04-09 1997-10-29 David Sarnoff Research Center, Inc. Plate for reaction system
US6706875B1 (en) * 1996-04-17 2004-03-16 Affyemtrix, Inc. Substrate preparation process
US5959098A (en) 1996-04-17 1999-09-28 Affymetrix, Inc. Substrate preparation process
US5733509A (en) * 1996-04-17 1998-03-31 Motorola, Inc. Method and system for synthesizing oligonucleotides using nucleotide-specific dispensing bars
US5731152A (en) * 1996-05-13 1998-03-24 Motorola, Inc. Methods and systems for biological reagent placement
US6048691A (en) * 1996-05-13 2000-04-11 Motorola, Inc. Method and system for performing a binding assay
US5792431A (en) * 1996-05-30 1998-08-11 Smithkline Beecham Corporation Multi-reactor synthesizer and method for combinatorial chemistry
US6224832B1 (en) 1997-05-30 2001-05-01 Smithkline Beecham Corporation Multi-reactor synthesizer and method for combinatorial chemistry
DE19625397A1 (en) * 1996-06-25 1998-01-08 Deutsches Krebsforsch A method for parallel combination of oligonucleotide synthesis and display of oligomer chips
US5731438A (en) * 1996-08-01 1998-03-24 Isis Pharmaceuticals, Inc. N-(aminoalkyl)-and/or N-(amidoalkyl)-dinitrogen heterocycles
US5798360A (en) * 1996-08-01 1998-08-25 Isis Pharmaceuticals, Inc. N-(aminoalkyl)- and/or N-(amidoalkyl)- dinitrogen heterocyclic compositions
US5817489A (en) * 1996-08-01 1998-10-06 Isis Pharmaceuticals, Inc. Di-nitrogen heterocycle compositions
US5922872A (en) * 1996-08-01 1999-07-13 Isis Pharmaceuticals, Inc. Meta-benzylic and alpha-amido compositions and methods for preparing same
US5792430A (en) * 1996-08-12 1998-08-11 Monsanto Company Solid phase organic synthesis device with pressure-regulated manifold
US5981733A (en) * 1996-09-16 1999-11-09 Incyte Pharmaceuticals, Inc. Apparatus for the chemical synthesis of molecular arrays
US6033544A (en) * 1996-10-11 2000-03-07 Sarnoff Corporation Liquid distribution system
US6042789A (en) * 1996-10-23 2000-03-28 Glaxo Group Limited System for parallel synthesis of organic compounds
US6149869A (en) * 1996-10-23 2000-11-21 Glaxo Wellcome Inc. Chemical synthesizers
US6875620B1 (en) * 1996-10-31 2005-04-05 Agilent Technologies, Inc. Tiling process for constructing a chemical array
US5780241A (en) * 1996-11-05 1998-07-14 Isis Pharmaceuticals, Inc. Complex chemical libraries
US6054325A (en) * 1996-12-02 2000-04-25 Glaxo Wellcom Inc. Method and apparatus for transferring and combining distinct chemical compositions with reagents
US6083761A (en) * 1996-12-02 2000-07-04 Glaxo Wellcome Inc. Method and apparatus for transferring and combining reagents
US5865224A (en) * 1996-12-20 1999-02-02 Life Technologies, Inc. Method and apparatus for automated dispensing
EP1249705A3 (en) * 1996-12-31 2003-11-05 Genometrix Incorporated Multiplexed molecular analysis apparatus and its fabrication method
US5876957A (en) * 1997-01-09 1999-03-02 Mercury Diagnostics, Inc. Methods for applying a reagent to an analytical test device
US6274094B1 (en) 1997-01-13 2001-08-14 Weller, Iii Harold Norris Nestable, modular apparatus for synthesis of multiple organic compounds
US5812272A (en) * 1997-01-30 1998-09-22 Hewlett-Packard Company Apparatus and method with tiled light source array for integrated assay sensing
US6001311A (en) * 1997-02-05 1999-12-14 Protogene Laboratories, Inc. Apparatus for diverse chemical synthesis using two-dimensional array
WO1998035753A1 (en) * 1997-02-17 1998-08-20 GESELLSCHAFT FüR BIOTECHNOLOGISCHE FORSCHUNG MBH (GBF) Automated chemical synthesis device
US6126904A (en) * 1997-03-07 2000-10-03 Argonaut Technologies, Inc. Apparatus and methods for the preparation of chemical compounds
US6045755A (en) * 1997-03-10 2000-04-04 Trega Biosciences,, Inc. Apparatus and method for combinatorial chemistry synthesis
WO1999001221A1 (en) * 1997-06-30 1999-01-14 INSTITUT FüR MIKROTECHNIK MAINZ GMBH Micro-reaction vessel, arrangement of micro-reaction vessels and method for discharging a liquid therefrom
US5961925A (en) * 1997-09-22 1999-10-05 Bristol-Myers Squibb Company Apparatus for synthesis of multiple organic compounds with pinch valve block
JP2001520116A (en) * 1997-10-22 2001-10-30 アーゴノート テクノロジーズ,インコーポレイティド System and method for combinatorial organic synthesis reaction arrays
US6177558B1 (en) 1997-11-13 2001-01-23 Protogene Laboratories, Inc. Method and composition for chemical synthesis using high boiling point organic solvents to control evaporation
CA2253164A1 (en) * 1997-11-14 1999-05-14 Edward Michael Sioma Apparatus and method used in multiple, simultaneous synthesis of general compounds
US6121054A (en) * 1997-11-19 2000-09-19 Trega Biosciences, Inc. Method for separation of liquid and solid phases for solid phase organic syntheses
US6083682A (en) * 1997-12-19 2000-07-04 Glaxo Group Limited System and method for solid-phase parallel synthesis of a combinatorial collection of compounds
US20030039967A1 (en) * 1997-12-19 2003-02-27 Kris Richard M. High throughput assay system using mass spectrometry
US20030096232A1 (en) * 1997-12-19 2003-05-22 Kris Richard M. High throughput assay system
US20100105572A1 (en) * 1997-12-19 2010-04-29 Kris Richard M High throughput assay system
US5939024A (en) * 1997-12-23 1999-08-17 Packard Instrument Co. Microplate assembly
US6087102A (en) * 1998-01-07 2000-07-11 Clontech Laboratories, Inc. Polymeric arrays and methods for their use in binding assays
US20020159919A1 (en) * 1998-01-09 2002-10-31 Carl Churchill Method and apparatus for high-speed microfluidic dispensing using text file control
US6063339A (en) * 1998-01-09 2000-05-16 Cartesian Technologies, Inc. Method and apparatus for high-speed dot array dispensing
US6289229B1 (en) 1998-01-20 2001-09-11 Scimed Life Systems, Inc. Readable probe array for in vivo use
US20030215957A1 (en) * 1998-02-20 2003-11-20 Tony Lemmo Multi-channel dispensing system
US6027695A (en) * 1998-04-01 2000-02-22 Dupont Pharmaceuticals Company Apparatus for holding small volumes of liquids
US7321828B2 (en) * 1998-04-13 2008-01-22 Isis Pharmaceuticals, Inc. System of components for preparing oligonucleotides
US20040186071A1 (en) 1998-04-13 2004-09-23 Bennett C. Frank Antisense modulation of CD40 expression
WO1999054031A1 (en) * 1998-04-23 1999-10-28 Otter Coast Automation, Inc. Method and apparatus for synthesis of libraries of organic compounds
DE19819735A1 (en) * 1998-05-02 1999-11-04 Novartis Ag Apparatus and method for manufacturing an array of chain molecules on a support material
US6253168B1 (en) 1998-05-12 2001-06-26 Isis Pharmaceuticals, Inc. Generation of virtual combinatorial libraries of compounds
US6872535B2 (en) 1998-05-20 2005-03-29 Aventis Pharmaceuticals Inc. Three-dimensional array of supports for solid-phase parallel synthesis and method of use
US6270730B1 (en) * 1998-06-16 2001-08-07 Northwest Engineering Inc. Multi-well rotary synthesizer
US6551557B1 (en) * 1998-07-07 2003-04-22 Cartesian Technologies, Inc. Tip design and random access array for microfluidic transfer
US6908770B1 (en) 1998-07-16 2005-06-21 Board Of Regents, The University Of Texas System Fluid based analysis of multiple analytes by a sensor array
US6238627B1 (en) 1998-08-26 2001-05-29 Arqule, Inc. Reaction block and cover
US6271042B1 (en) 1998-08-26 2001-08-07 Alpha Innotech Corporation Biochip detection system
US6461812B2 (en) * 1998-09-09 2002-10-08 Agilent Technologies, Inc. Method and multiple reservoir apparatus for fabrication of biomolecular arrays
US6475440B1 (en) 1998-09-16 2002-11-05 Clontech Laboratories, Inc. Applicator for use in deposition of fluid samples onto a substrate surface
EP1000661A1 (en) * 1998-10-29 2000-05-17 Hans-Knöll-Institut für Naturstoff-Forschung e.v. Ultrathin-walled multiwell plate for heat block thermocycling
US6258323B1 (en) 1998-11-16 2001-07-10 Rohm And Haas Company Apparatus and method used in multiple, simultaneous synthesis of general compounds
US6309828B1 (en) 1998-11-18 2001-10-30 Agilent Technologies, Inc. Method and apparatus for fabricating replicate arrays of nucleic acid molecules
US6264891B1 (en) * 1998-12-22 2001-07-24 Eos Biotechnology, Inc. Apparatus and method for concurrent chemical synthesis
KR20020003188A (en) * 1998-12-30 2002-01-10 볼프강 하임버그 apparatus for the conduct of chemical reactions
US6087112A (en) * 1998-12-30 2000-07-11 Oligos Etc. Inc. Arrays with modified oligonucleotide and polynucleotide compositions
US20030180789A1 (en) * 1998-12-30 2003-09-25 Dale Roderic M.K. Arrays with modified oligonucleotide and polynucleotide compositions
US20030207464A1 (en) * 1999-02-19 2003-11-06 Tony Lemmo Methods for microfluidic aspirating and dispensing
WO2000056445A1 (en) * 1999-03-19 2000-09-28 Genomic Instrumentation Services, Inc. Polymer synthesizer
US6800250B1 (en) 1999-03-19 2004-10-05 Scott P. Hunicke-Smith Polymer synthesizer
US6143252A (en) * 1999-04-12 2000-11-07 The Perkin-Elmer Corporation Pipetting device with pipette tip for solid phase reactions
US6511849B1 (en) 1999-04-23 2003-01-28 The Sir Mortimer B. Davis - Jewish General Hospital Microarrays of biological materials
DE19919607A1 (en) * 1999-04-29 2000-11-16 Mets Ion Gmbh Ges Fuer Angewan Parallel synthesis of multiple oligonucleotides comprises using plug-in modules rotating between stations for performing different operations
AU4988600A (en) * 1999-05-04 2000-11-17 Orchid Biosciences, Inc. Multiple fluid sample processor with single well addressability
US6969763B1 (en) 1999-05-12 2005-11-29 Isis Pharmaceuticals, Inc. Molecular interaction sites of interleukin-2 RNA and methods of modulating the same
US20030083483A1 (en) * 1999-05-12 2003-05-01 Ecker David J. Molecular interaction sites of vimentin RNA and methods of modulating the same
US6589791B1 (en) 1999-05-20 2003-07-08 Cartesian Technologies, Inc. State-variable control system
WO2000071559A1 (en) 1999-05-24 2000-11-30 Invitrogen Corporation Method for deblocking of labeled oligonucleotides
WO2000076662A2 (en) * 1999-06-11 2000-12-21 Orchid Biosciences, Inc. Microenabled chemical reaction in microfluidic chips
US6830902B1 (en) * 1999-07-02 2004-12-14 Invitrogen Corporation Compositions and methods for enhanced sensitivity and specificity of nucleic acid synthesis
US6346423B1 (en) 1999-07-16 2002-02-12 Agilent Technologies, Inc. Methods and compositions for producing biopolymeric arrays
WO2001016166A2 (en) 1999-08-27 2001-03-08 The United States Of America, Represented By The Secretary, Department Of Health And Human Services Polypeptides, comprising il-6 ligand-binding receptor domains, and related nucleic acids, antibodies, compositions, and methods of use
US6307004B1 (en) 1999-09-20 2001-10-23 General Electric Company Method for parallel melt-polymerization
US6171797B1 (en) 1999-10-20 2001-01-09 Agilent Technologies Inc. Methods of making polymeric arrays
US6329210B1 (en) * 1999-10-29 2001-12-11 Agilent Technologies, Inc. Method and apparatus for high volume polymer synthesis
AU2576601A (en) * 1999-12-08 2001-07-03 Glaxo Group Limited Novel supports for solid phase synthesis
US7390459B2 (en) * 1999-12-13 2008-06-24 Illumina, Inc. Oligonucleotide synthesizer
US6800439B1 (en) * 2000-01-06 2004-10-05 Affymetrix, Inc. Methods for improved array preparation
US20040053322A1 (en) * 2000-01-31 2004-03-18 Mcdevitt John T. System and method for the analysis of bodily fluids
AU4932501A (en) * 2000-03-22 2001-10-03 Dewalch Technologies Inc Method and apparatus for processing substances in a single container
US20080260593A1 (en) * 2000-03-22 2008-10-23 Dewalch Norman Binz Method and apparatus for processing substances in a single container
US7431685B2 (en) * 2000-03-28 2008-10-07 Laser- Und Medizin Technologie Gmbh Method and device for investigating substance libraries
AT380071T (en) * 2000-04-03 2007-12-15 Parabol Technologies S A Apparatus for dispensing precisely controlled small amounts of liquids
US7112449B1 (en) * 2000-04-05 2006-09-26 Nanogram Corporation Combinatorial chemical synthesis
US6432365B1 (en) * 2000-04-14 2002-08-13 Discovery Partners International, Inc. System and method for dispensing solution to a multi-well container
AU7199801A (en) 2000-07-13 2002-01-30 Univ Johns Hopkins Med Detection and treatment of polycystic kidney disease
US7018589B1 (en) * 2000-07-19 2006-03-28 Symyx Technologies, Inc. High pressure parallel reactor
EP1598432A3 (en) * 2000-07-31 2006-06-07 Agilent Technologies, Inc. Array based methods for sythesizing nucleic acid mixtures
AU8521901A (en) * 2000-08-24 2002-03-04 Aviva Biosciences Corp Methods and compositions for identifying nucleic acid molecules using nucleolytic activities and hybridization
US6900013B1 (en) 2000-08-25 2005-05-31 Aviva Biosciences Corporation Methods and compositions for identifying nucleic acid molecules using nucleolytic activities and hybridization
US20040185464A1 (en) * 2000-09-15 2004-09-23 Kris Richard M. High throughput assay system
AU1282802A (en) * 2000-10-13 2002-04-22 Avantium Int Bv Method and apparatus for screening of polycondensation catalysts
US6849409B2 (en) * 2000-10-16 2005-02-01 Axxima Pharmaceuticals Ag Cellular kinases involved in Cytomegalovirus infection and their inhibition
US6656740B1 (en) * 2000-10-31 2003-12-02 Agilent Technologies, Inc. Pressure variation in array fabrication
US20080261220A1 (en) * 2000-11-30 2008-10-23 Third Wave Technologies, Inc. Nucleic Acid Detection Assays
US6932943B1 (en) 2001-01-26 2005-08-23 Third Wave Technologies Nucleic acid synthesizers
US7435390B2 (en) * 2001-01-26 2008-10-14 Third Wave Technologies, Inc. Nucleic acid synthesizers
NL1017374C2 (en) * 2001-02-15 2002-08-16 Univ Delft Tech A device for carrying out a reaction, as well as a method for carrying out a reaction in the apparatus.
DE10108892B4 (en) * 2001-02-23 2005-08-18 Graffinity Pharmaceuticals Ag Synthesis apparatus and process for their preparation
US7731905B2 (en) * 2001-03-26 2010-06-08 Canon Kabushiki Kaisha Process for producing probe carrier and apparatus thereof
US20020136772A1 (en) * 2001-03-26 2002-09-26 Tai-Nang Huang Polymer synthesis
US6838447B2 (en) 2001-03-26 2005-01-04 Linden Technologies, Inc. Particulate compositions for chemical synthesis
US6692708B2 (en) * 2001-04-05 2004-02-17 Symyx Technologies, Inc. Parallel reactor for sampling and conducting in situ flow-through reactions and a method of using same
US6867050B2 (en) * 2001-05-16 2005-03-15 Academia Sinica Apparatus and methods for chemical synthesis
WO2002094846A2 (en) * 2001-05-22 2002-11-28 Parallel Synthesis Technologies, Inc. Method for in situ, on-chip chemical synthesis
US6800491B2 (en) 2001-06-08 2004-10-05 Nalge Nunc International Corporation Robotic reservoir without liquid hangup
EP1416041A4 (en) * 2001-07-06 2004-08-04 Prec System Science Co Ltd Reaction container and reaction device
US7708946B1 (en) * 2001-07-19 2010-05-04 Michael Sherman Device for protein detecting tests
US6969489B2 (en) * 2001-08-24 2005-11-29 Cytoplex Biosciences Micro array for high throughout screening
US20030044798A1 (en) * 2001-08-31 2003-03-06 Lefkowitz Steven M. Methods for generating ligand arrays via deposition of ligands onto olefin displaying substrates, and arrays produced thereby
US7390463B2 (en) * 2001-09-07 2008-06-24 Corning Incorporated Microcolumn-based, high-throughput microfluidic device
US6974671B1 (en) 2001-09-12 2005-12-13 Salk Institute For Biological Studies Methods for indentifying compounds that modulate gluconeogenesis through the binding of CREB to the PGC-1 promoter
US20030086829A1 (en) * 2001-10-24 2003-05-08 Livesay Eric A. High throughput chemical synthesizer
US6696298B2 (en) 2001-12-07 2004-02-24 Biosearch Technologies, Inc. Multi-channel reagent dispensing apparatus
US20030113937A1 (en) * 2001-12-14 2003-06-19 3M Innovative Properties Company Desiccator system having modular elements
US7282183B2 (en) * 2001-12-24 2007-10-16 Agilent Technologies, Inc. Atmospheric control in reaction chambers
US6783737B2 (en) * 2002-01-25 2004-08-31 Bristol-Myers Squibb Company High pressure chemistry reactor
US7036653B2 (en) 2002-01-29 2006-05-02 Siemens Technology-To-Business Center Llc Load manipulation system
US6910569B2 (en) 2002-01-29 2005-06-28 Siemens Technology-To-Business Center, Llc Load singulation system and method
FR2837726B1 (en) * 2002-03-26 2005-02-04 Centre Nat Rech Scient Device and lid allowing access to the samples of a "plate" SAMPLING
US20030186302A1 (en) * 2002-03-29 2003-10-02 Yixin Wang Colorectal cancer diagnostics
US7122159B2 (en) * 2002-04-29 2006-10-17 Symyx Technologies, Inc. High pressure parallel reactor with individually sealable vessels
KR20120004544A (en) 2002-05-08 2012-01-12 노쓰웨스트 바이오써라퓨틱스, 인크. Quality assays for antigen presenting cells
US7354774B2 (en) * 2002-05-13 2008-04-08 Becton, Dickinson And Company Self aliquoting sample storage plate
US20030232140A1 (en) * 2002-06-14 2003-12-18 Joseph Remick Methods for reagent removal in flow chambers
US20060045821A1 (en) * 2002-07-26 2006-03-02 Mckelvy Michael J Microreactor witii controllable pressure and temperature for in situ material investigations
US7452712B2 (en) 2002-07-30 2008-11-18 Applied Biosystems Inc. Sample block apparatus and method of maintaining a microcard on a sample block
DE10237704A1 (en) * 2002-08-09 2004-03-11 Chemogenix Gmbh Method and apparatus for intermolecular transfer of activation energy for bond cleavage through the space
CA2503863A1 (en) * 2002-10-29 2004-05-13 Siemens Aktiengesellschaft Conveyor system with distributed article manipulation
US7541152B2 (en) * 2002-12-24 2009-06-02 Agilent Technologies, Inc. Integrated light source for diagnostic arrays
US20040191782A1 (en) * 2003-03-31 2004-09-30 Yixin Wang Colorectal cancer prognostics
US7025935B2 (en) * 2003-04-11 2006-04-11 Illumina, Inc. Apparatus and methods for reformatting liquid samples
AU2004235298A1 (en) * 2003-04-25 2004-11-11 Janssen Pharmaceutica N.V. Preservation of RNA in a biological sample
DE10320871B3 (en) * 2003-05-09 2004-09-16 Evotec Technologies Gmbh Sample distribution, for a cell sorter, comprises a fixed feed tube in a guide to deposit separate PCR samples at a moving micro-titration plate or sample strip without interfering with cell sorting
US8409528B2 (en) 2003-06-19 2013-04-02 Abbott Laboratories Apparatus and method for handling fluids for analysis
US20040259100A1 (en) 2003-06-20 2004-12-23 Illumina, Inc. Methods and compositions for whole genome amplification and genotyping
US20050026198A1 (en) * 2003-06-27 2005-02-03 Tamara Balac Sipes Method of selecting an active oligonucleotide predictive model
US7470547B2 (en) * 2003-07-31 2008-12-30 Biodot, Inc. Methods and systems for dispensing sub-microfluidic drops
US7460223B2 (en) 2003-09-19 2008-12-02 Applied Biosystems Inc. Inverted orientation for a microplate
US20050221357A1 (en) 2003-09-19 2005-10-06 Mark Shannon Normalization of gene expression data
US7417726B2 (en) 2003-09-19 2008-08-26 Applied Biosystems Inc. Normalization of data using controls
US7570443B2 (en) 2003-09-19 2009-08-04 Applied Biosystems, Llc Optical camera alignment
US20050226779A1 (en) 2003-09-19 2005-10-13 Oldham Mark F Vacuum assist for a microplate
US20050107911A1 (en) * 2003-11-14 2005-05-19 Siemens Technology-To-Business Center Llc Systems and methods for controlling load motion actuators
US20050107909A1 (en) * 2003-11-14 2005-05-19 Siemens Technology-To-Business Center Llc Systems and methods for programming motion control
US20050065633A1 (en) * 2003-11-14 2005-03-24 Michael Wynblatt Systems and methods for relative control of load motion actuators
US6991311B2 (en) * 2003-12-12 2006-01-31 Industrial Technology Research Institute Apparatus and method for introducing micro-volume liquid
US20050169816A1 (en) * 2003-12-15 2005-08-04 Kirshner Brian M. Automated oligomer synthesis
US20050186577A1 (en) 2004-02-20 2005-08-25 Yixin Wang Breast cancer prognostics
WO2005082110A2 (en) * 2004-02-26 2005-09-09 Illumina Inc. Haplotype markers for diagnosing susceptibility to immunological conditions
US20060257941A1 (en) * 2004-02-27 2006-11-16 Mcdevitt John T Integration of fluids and reagents into self-contained cartridges containing particle and membrane sensor elements
US8105849B2 (en) 2004-02-27 2012-01-31 Board Of Regents, The University Of Texas System Integration of fluids and reagents into self-contained cartridges containing sensor elements
US7781226B2 (en) * 2004-02-27 2010-08-24 The Board Of Regents Of The University Of Texas System Particle on membrane assay system
US20060257991A1 (en) * 2004-02-27 2006-11-16 Mcdevitt John T Integration of fluids and reagents into self-contained cartridges containing particle-based sensor elements and membrane-based sensor elements
US20060257854A1 (en) * 2004-02-27 2006-11-16 Mcdevitt John T Membrane assay system including preloaded particles
US8101431B2 (en) 2004-02-27 2012-01-24 Board Of Regents, The University Of Texas System Integration of fluids and reagents into self-contained cartridges containing sensor elements and reagent delivery systems
KR100597870B1 (en) * 2004-04-01 2006-07-06 한국과학기술원 Microfluidic chip for high-throughput screening and high-throughput assay
US20050244984A1 (en) * 2004-04-28 2005-11-03 Parker Russell A Methods and compositions for calibrating chemical array readers
EP2471921A1 (en) 2004-05-28 2012-07-04 Asuragen, Inc. Methods and compositions involving microRNA
US7702466B1 (en) 2004-06-29 2010-04-20 Illumina, Inc. Systems and methods for selection of nucleic acid sequence probes
CA2857879A1 (en) 2004-11-12 2006-12-28 Asuragen, Inc. Methods and compositions involving mirna and mirna inhibitor molecules
MX2007006441A (en) * 2004-11-30 2007-08-14 Johnson & Johnson Lung cancer prognostics.
US7977119B2 (en) 2004-12-08 2011-07-12 Agilent Technologies, Inc. Chemical arrays and methods of using the same
KR100624458B1 (en) * 2005-01-17 2006-09-19 삼성전자주식회사 Handheld centrifuge
BRPI0607874A2 (en) * 2005-04-04 2009-10-20 Veridex Llc microarray analysis and laser microdissection of breast tumors express genes related to estrogen receptor pathways and
WO2007053186A2 (en) 2005-05-31 2007-05-10 Labnow, Inc. Methods and compositions related to determination and use of white blood cell counts
DK2463386T3 (en) 2005-06-15 2017-07-31 Complete Genomics Inc Nucleic acid analysis using the random mixtures of non-overlapping fragments
CN101277758A (en) * 2005-09-14 2008-10-01 Illumina公司 Continuous polymer synthesizer
BRPI0616211A2 (en) 2005-09-19 2011-06-14 Veridex Llc methods for pancreatic cancer diagnàstico
US20070202515A1 (en) * 2005-10-12 2007-08-30 Pathologica, Llc. Promac signature application
US7329860B2 (en) 2005-11-23 2008-02-12 Illumina, Inc. Confocal imaging methods and apparatus
US20070172837A1 (en) * 2006-01-23 2007-07-26 Kyle Schleifer Flow cell comprising ports and methods for using the same
US7715001B2 (en) * 2006-02-13 2010-05-11 Pacific Biosciences Of California, Inc. Methods and systems for simultaneous real-time monitoring of optical signals from multiple sources
US7995202B2 (en) 2006-02-13 2011-08-09 Pacific Biosciences Of California, Inc. Methods and systems for simultaneous real-time monitoring of optical signals from multiple sources
WO2007106545A2 (en) * 2006-03-13 2007-09-20 Veridex, Llc Propagation of primary cells
US7914988B1 (en) 2006-03-31 2011-03-29 Illumina, Inc. Gene expression profiles to predict relapse of prostate cancer
US8962532B2 (en) 2006-06-19 2015-02-24 Yeda Research And Development Co. Ltd. Programmable iterated elongation: a method for manufacturing synthetic genes and combinatorial DNA and protein libraries
WO2008036765A2 (en) 2006-09-19 2008-03-27 Asuragen, Inc. Micrornas differentially expressed in pancreatic diseases and uses thereof
CA2663962A1 (en) 2006-09-19 2008-03-27 Asuragen, Inc. Mir-15, mir-26, mir-31,mir-145, mir-147, mir-188, mir-215, mir-216, mir-331, mmu-mir-292-3p regulated genes and pathways as targets for therapeutic intervention
DE102006035392A1 (en) 2006-11-02 2008-10-16 Signature Diagnostics Ag Prognostic markers for predicting the five-year progression-free survival of patients with colon cancer based on expression profiles of biological samples
DE102006035388A1 (en) * 2006-11-02 2008-05-15 Signature Diagnostics Ag Prognostic markers for the classification of colon cancer based on expression profiles of biological samples
DE102006035393A1 (en) 2006-11-02 2008-05-15 Signature Diagnostics Ag Prognostic markers for the classification of the three-year progessionsfreien survival of patients with colon cancer based on expression profiles of biological samples
EP2136911A2 (en) 2007-01-19 2009-12-30 Biodot, Inc. Systems and methods for high speed array printing and hybridization
US7807109B2 (en) 2007-05-14 2010-10-05 Freeslate, Inc. Parallel batch reactor with pressure monitoring
US20080286170A1 (en) * 2007-05-14 2008-11-20 Symyx Technologies, Inc. Parallel batch reactor
US7655191B2 (en) * 2007-05-14 2010-02-02 Symyx Solutions, Inc. Methods for chemical reactions in a parallel batch reactor
CA2697106A1 (en) * 2007-08-28 2009-03-12 Donald Bergstrom Expression profiles of biomarker genes in notch mediated cancers
US8877141B2 (en) * 2007-09-06 2014-11-04 Qiagen Sciences Llc System for preparing arrays of biomolecules
USRE47320E1 (en) 2007-11-20 2019-03-26 Ionis Pharmaceuticals, Inc. Modulation of CD40 expression
US8602958B1 (en) * 2007-11-29 2013-12-10 Life Technologies Corporation Methods and assemblies for collecting liquid by centrifugation
US8211370B2 (en) 2007-12-07 2012-07-03 Thomas Downing Polymer synthesizer
AU2008339105A1 (en) * 2007-12-17 2009-06-25 Hai-Qing Gong Microfluidic device
EP2240401A1 (en) * 2008-01-04 2010-10-20 The Royal Institution for the Advancement of Learning/McGill University Microfluidic microarray system and method for the multiplexed analysis of biomolecules
KR20100120657A (en) * 2008-01-22 2010-11-16 베리덱스, 엘엘씨 Molecular staging of stage ii and iii colon cancer and prognosis
US7932036B1 (en) 2008-03-12 2011-04-26 Veridex, Llc Methods of determining acute myeloid leukemia response to treatment with farnesyltransferase
CN101270332B (en) * 2008-04-30 2012-05-30 广东省人民医院 Apparatus and method for cultivation and process of cell or tissue
WO2009137807A2 (en) 2008-05-08 2009-11-12 Asuragen, Inc. Compositions and methods related to mirna modulation of neovascularization or angiogenesis
EP2297347B1 (en) 2008-05-14 2017-03-08 Millennium Pharmaceuticals, Inc. Methods and kits for monitoring the effects of immunomodulators on adaptive immunity
CA2742324A1 (en) 2008-10-30 2010-06-03 Caris Life Sciences Luxembourg Holdings, S.A.R.L. Methods for assessing rna patterns
US7897356B2 (en) 2008-11-12 2011-03-01 Caris Life Sciences Methods and systems of using exosomes for determining phenotypes
US8741581B2 (en) 2009-04-27 2014-06-03 Technion Research And Development Foundation Ltd. Markers for cancer detection
US20110021749A1 (en) * 2009-07-27 2011-01-27 Demmitt Thomas J Chemical Plugs used with Automated Organic Polymer Synthesizers
US9771618B2 (en) * 2009-08-19 2017-09-26 Bioarray Genetics, Inc. Methods for treating breast cancer
EP2507393A4 (en) 2009-11-30 2013-05-01 Caris Life Sciences Luxembourg Holdings Methods and systems for isolating, storing, and analyzing vesicles
CA2820315A1 (en) * 2009-12-09 2011-06-16 Ezygene Pty Ltd Hyperprimers
CA2787027A1 (en) 2010-01-13 2011-07-21 Caris Life Sciences Luxembourg Holdings, S.A.R.L. Detection of gastrointestinal disorders
WO2011090949A2 (en) * 2010-01-19 2011-07-28 Illumina, Inc. Methods and compositions for processing chemical reactions
US8580201B2 (en) 2010-02-22 2013-11-12 Oligoco, Inc. Wicking-based reagent-solution draining in an automated system
WO2011102914A2 (en) * 2010-02-22 2011-08-25 Oligoco Automated polymer-synthesis system
AU2011223789A1 (en) 2010-03-01 2012-09-20 Caris Life Sciences Switzerland Holdings Gmbh Biomarkers for theranostics
EP3214174A1 (en) 2010-03-04 2017-09-06 InteRNA Technologies B.V. A mirna molecule defined by its source and its diagnostic and therapeutic uses in diseases or conditions associated with emt
EP2556172A4 (en) 2010-04-06 2013-10-30 Caris Life Sciences Luxembourg Holdings Circulating biomarkers for disease
EP2388336A1 (en) 2010-05-19 2011-11-23 Signature Diagnostics AG Method and kits for diagnosing colorectal cancer
WO2011146725A1 (en) 2010-05-19 2011-11-24 Bayer Healthcare Llc Biomarkers for a multikinase inhibitor
WO2011159942A1 (en) 2010-06-18 2011-12-22 Illumina, Inc. Conformational probes and methods for sequencing nucleic acids
AU2011274619B2 (en) 2010-07-06 2016-11-10 Interna Technologies Bv miRNA and its diagnostic and therapeutic uses in diseases or conditions associated with melanoma, or in diseases or conditions associated with activated BRAF pathway
AU2011329772B2 (en) 2010-11-17 2017-05-04 Interpace Diagnostics, Llc miRNAs as biomarkers for distinguishing benign from malignant thyroid neoplasms
EP2474617A1 (en) 2011-01-11 2012-07-11 InteRNA Technologies BV Mir for treating neo-angiogenesis
US9068566B2 (en) 2011-01-21 2015-06-30 Biodot, Inc. Piezoelectric dispenser with a longitudinal transducer and replaceable capillary tube
CA2828532A1 (en) 2011-02-28 2012-11-22 University Of Iowa Research Foundation Anti-mullerian hormone changes in pregnancy and prediction of adverse pregnancy outcomes and gender
EP2527459A1 (en) 2011-05-02 2012-11-28 Rheinische Friedrich-Wilhelms-Universität Bonn Blood-based gene detection of non-small cell lung cancer
EP2520661A1 (en) 2011-05-02 2012-11-07 Rheinische Friedrich-Wilhelms-Universität Bonn Blood-based gene expression signatures in lung cancer
EP2710147A1 (en) 2011-05-18 2014-03-26 Rheinische Friedrich-Wilhelms-Universität Bonn Molecular analysis of acute myeloid leukemia
EP2524968A1 (en) 2011-05-19 2012-11-21 Signature Diagnostics AG Methods and kits for diagnosing colorectal cancer
EP2524967A1 (en) 2011-05-19 2012-11-21 Signature Diagnostics AG Methods and kits for diagnosing colorectal cancer
US8778848B2 (en) 2011-06-09 2014-07-15 Illumina, Inc. Patterned flow-cells useful for nucleic acid analysis
US9644241B2 (en) 2011-09-13 2017-05-09 Interpace Diagnostics, Llc Methods and compositions involving miR-135B for distinguishing pancreatic cancer from benign pancreatic disease
WO2013049227A2 (en) 2011-09-26 2013-04-04 Geneart Ag High efficiency, small volume nucleic acid synthesis
WO2013063519A1 (en) 2011-10-26 2013-05-02 Asuragen, Inc. Methods and compositions involving mirna expression levels for distinguishing pancreatic cysts
US20130142728A1 (en) 2011-10-27 2013-06-06 Asuragen, Inc. Mirnas as diagnostic biomarkers to distinguish benign from malignant thyroid tumors
CN104302180B (en) 2011-10-28 2017-05-17 米伦纽姆医药公司 Nedd8 biomarker response to activating enzyme (NAE) inhibitors
CA3003082A1 (en) 2011-10-28 2013-05-02 Illumina, Inc. Microarray fabrication system and method
CA2855368A1 (en) 2011-11-11 2013-05-16 Millennium Pharmaceuticals, Inc. Biomarkers of response to proteasome inhibitors
WO2013071142A1 (en) 2011-11-11 2013-05-16 Millennium Pharmaceuticals, Inc. Biomarkers of response to proteasome inhibitors
US8748097B1 (en) 2011-12-02 2014-06-10 President And Fellows Of Harvard College Identification of agents for treating calcium disorders and uses thereof
WO2013087789A1 (en) 2011-12-13 2013-06-20 Glykos Finland Ltd. Antibody isoform arrays and methods thereof
US9012022B2 (en) 2012-06-08 2015-04-21 Illumina, Inc. Polymer coatings
EP2870263A1 (en) 2012-07-03 2015-05-13 InteRNA Technologies B.V. Diagnostic portfolio and its uses
WO2014055543A2 (en) 2012-10-01 2014-04-10 Millennium Pharmaceuticals, Inc. Biomarkers and methods to predict response to inhibitors and uses thereof
US20140100124A1 (en) 2012-10-04 2014-04-10 Asuragen, Inc. Diagnostic mirnas for differential diagnosis of incidental pancreatic cystic lesions
EP2925888B1 (en) 2012-11-28 2017-10-25 Merck Sharp & Dohme Corp. Compositions and methods for treating cancer
KR101874680B1 (en) 2013-03-15 2018-07-04 일루미나 케임브리지 리미티드 Modified nucleosides or nucleotides
EP2971149B1 (en) 2013-03-15 2018-05-09 Baylor Research Institute Ulcerative colitis (uc)-associated colorectal neoplasia markers
US9771613B2 (en) 2013-04-02 2017-09-26 Molecular Assemblies, Inc. Methods and apparatus for synthesizing nucleic acid
US9279149B2 (en) 2013-04-02 2016-03-08 Molecular Assemblies, Inc. Methods and apparatus for synthesizing nucleic acids
US8808989B1 (en) * 2013-04-02 2014-08-19 Molecular Assemblies, Inc. Methods and apparatus for synthesizing nucleic acids
US9069358B2 (en) 2013-06-24 2015-06-30 Biolytic Lab Performance, Inc. System for controlling and optimizing reactions in solid phase synthesis of small molecules
MX2015018049A (en) 2013-07-01 2016-06-24 Illumina Inc Catalyst-free surface functionalization and polymer grafting.
US9352021B2 (en) 2013-08-28 2016-05-31 Cytonics Corporation Systems, compositions, and methods for transplantation and treating conditions
EP3084003A4 (en) 2013-12-17 2017-07-19 Merck Sharp & Dohme Corp. Ifn-gamma gene signature biomarkers of tumor response to pd-1 antagonists
CA2928598A1 (en) 2013-12-19 2015-06-25 M. Shane Bowen Substrates comprising nano-patterning surfaces and methods of preparing thereof
EP3094747B1 (en) 2014-01-16 2018-11-07 Illumina, Inc. Gene expression panel for prognosis of prostate cancer recurrence
US10261084B1 (en) 2014-02-19 2019-04-16 Stc.Unm Activated GTPase-based assays and kits for the diagnosis of sepsis and other infections
WO2016026924A1 (en) 2014-08-21 2016-02-25 Illumina Cambridge Limited Reversible surface functionalization
CA2965578A1 (en) 2014-10-31 2016-05-06 Illumina Cambridge Limited Novel polymers and dna copolymer coatings
EP3325648A1 (en) 2015-07-17 2018-05-30 Illumina, Inc. Polymer sheets for sequencing applications
KR20190009345A (en) 2016-05-18 2019-01-28 일루미나, 인코포레이티드 The hydrophobic surface with a patterned self-assembled patterned
TW201900193A (en) 2017-04-28 2019-01-01 美商默沙東藥廠 For the biological treatment of cancer marker

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US458066A (en) * 1891-08-18 John r
US4458066A (en) * 1980-02-29 1984-07-03 University Patents, Inc. Process for preparing polynucleotides
US4500707A (en) * 1980-02-29 1985-02-19 University Patents, Inc. Nucleosides useful in the preparation of polynucleotides
US4517338A (en) * 1983-06-20 1985-05-14 Chiron Corporation Multiple reactor system and method for polynucleotide synthesis
US5047524A (en) * 1988-12-21 1991-09-10 Applied Biosystems, Inc. Automated system for polynucleotide synthesis and purification
US5106583A (en) * 1989-03-08 1992-04-21 Applied Biosystems, Inc. Automated protein hydrolysis system
US5273718A (en) * 1990-08-07 1993-12-28 Pharmacia Lkb Biotechnology Ab Apparatus for carrying out biochemical reactions
US5368823A (en) * 1993-02-11 1994-11-29 University Of Georgia Research Foundation, Inc. Automated synthesis of oligonucleotides
US5378776A (en) * 1991-12-26 1995-01-03 Nippon Petrochemicals Company, Limited Method for preparing optical polymer with radial transition in refractive index
US5472672A (en) * 1993-10-22 1995-12-05 The Board Of Trustees Of The Leland Stanford Junior University Apparatus and method for polymer synthesis using arrays
US5474796A (en) * 1991-09-04 1995-12-12 Protogene Laboratories, Inc. Method and apparatus for conducting an array of chemical reactions on a support surface
US5538694A (en) * 1992-03-02 1996-07-23 Deutsches Krebsforschungszentrum Stiftung Des Oeffentlichen Rechts Device for simultaneously or sequentially carrying out chemical reactions
US6001311A (en) * 1997-02-05 1999-12-14 Protogene Laboratories, Inc. Apparatus for diverse chemical synthesis using two-dimensional array
US6589726B1 (en) * 1991-09-04 2003-07-08 Metrigen, Inc. Method and apparatus for in situ synthesis on a solid support
US20050009092A1 (en) * 1991-09-04 2005-01-13 Brennan Thomas M. Method and apparatus for conducting an array of chemical reactions on a support surface

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK492788D0 (en) * 1988-09-02 1988-09-05 Morten Meldal Peptide Synthesis Unit
DE4005518A1 (en) 1990-02-22 1991-08-29 Boehringer Ingelheim Kg Method and apparatus for the simultaneous synthesis of several polypeptides
JPH04308600A (en) 1991-04-03 1992-10-30 Kokusan Kagaku Kk Reactor for peptide synthesis and kit for peptide synthesis

Patent Citations (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US458066A (en) * 1891-08-18 John r
US4458066A (en) * 1980-02-29 1984-07-03 University Patents, Inc. Process for preparing polynucleotides
US4500707A (en) * 1980-02-29 1985-02-19 University Patents, Inc. Nucleosides useful in the preparation of polynucleotides
US4517338A (en) * 1983-06-20 1985-05-14 Chiron Corporation Multiple reactor system and method for polynucleotide synthesis
US5047524A (en) * 1988-12-21 1991-09-10 Applied Biosystems, Inc. Automated system for polynucleotide synthesis and purification
US5106583A (en) * 1989-03-08 1992-04-21 Applied Biosystems, Inc. Automated protein hydrolysis system
US5273718A (en) * 1990-08-07 1993-12-28 Pharmacia Lkb Biotechnology Ab Apparatus for carrying out biochemical reactions
US5985551A (en) * 1991-09-04 1999-11-16 Protogene Laboratories, Inc. Method and apparatus for conducting an array of chemical reactions on a support surface
US20050009092A1 (en) * 1991-09-04 2005-01-13 Brennan Thomas M. Method and apparatus for conducting an array of chemical reactions on a support surface
US6589726B1 (en) * 1991-09-04 2003-07-08 Metrigen, Inc. Method and apparatus for in situ synthesis on a solid support
US6210894B1 (en) * 1991-09-04 2001-04-03 Protogene Laboratories, Inc. Method and apparatus for conducting an array of chemical reactions on a support surface
US5474796A (en) * 1991-09-04 1995-12-12 Protogene Laboratories, Inc. Method and apparatus for conducting an array of chemical reactions on a support surface
US6921636B1 (en) * 1991-09-04 2005-07-26 Metrigen, Inc. Method and apparatus for conducting an array of chemical reactions on a support surface
US5378776A (en) * 1991-12-26 1995-01-03 Nippon Petrochemicals Company, Limited Method for preparing optical polymer with radial transition in refractive index
US5538694A (en) * 1992-03-02 1996-07-23 Deutsches Krebsforschungszentrum Stiftung Des Oeffentlichen Rechts Device for simultaneously or sequentially carrying out chemical reactions
US5368823A (en) * 1993-02-11 1994-11-29 University Of Georgia Research Foundation, Inc. Automated synthesis of oligonucleotides
US5541314A (en) * 1993-02-11 1996-07-30 University Of Georgia Research Foundation, Inc. Method for automated synthesis of oligonucleotides
US5837858A (en) * 1993-10-22 1998-11-17 The Board Of Trustees Of The Leland Stanford Junior University Method for polymer synthesis using arrays
US5472672A (en) * 1993-10-22 1995-12-05 The Board Of Trustees Of The Leland Stanford Junior University Apparatus and method for polymer synthesis using arrays
US5814700A (en) * 1993-10-22 1998-09-29 The Board Of Trustees Of The Leland Stanford Junior University Method for polymer synthesis in a reaction well
US5529756A (en) * 1993-10-22 1996-06-25 The Board Of Trustees Of The Leland Stanford Junior University Apparatus and method for polymer synthesis using arrays
US6001311A (en) * 1997-02-05 1999-12-14 Protogene Laboratories, Inc. Apparatus for diverse chemical synthesis using two-dimensional array

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030156989A1 (en) * 2000-06-03 2003-08-21 Adam Safir Parallel semicontinuous or continuous reactors
US6994827B2 (en) * 2000-06-03 2006-02-07 Symyx Technologies, Inc. Parallel semicontinuous or continuous reactors
US20030118717A1 (en) * 2001-12-24 2003-06-26 Peck Bill J. Fluid exit in reaction chambers
US6846454B2 (en) * 2001-12-24 2005-01-25 Agilent Technologies, Inc. Fluid exit in reaction chambers
US20070134785A1 (en) * 2002-01-28 2007-06-14 Nanosphere, Inc. DNA Hybridization Device and Method
US20040152200A1 (en) * 2003-01-20 2004-08-05 Deshmukh A. Jay Method and automated fluidic system for detecting protein in biological sample
US6989130B2 (en) * 2003-01-20 2006-01-24 Samsung Electronics Co., Ltd. Method and automated fluidic system for detecting protein in biological sample
US10040048B1 (en) 2014-09-25 2018-08-07 Synthego Corporation Automated modular system and method for production of biopolymers

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