WO2016013770A1 - 멀티플렉스 pcr 칩 및 이를 포함하는 멀티플렉스 pcr 장치 - Google Patents
멀티플렉스 pcr 칩 및 이를 포함하는 멀티플렉스 pcr 장치 Download PDFInfo
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- B01L7/00—Heating or cooling apparatus; Heat insulating devices
- B01L7/52—Heating or cooling apparatus; Heat insulating devices with provision for submitting samples to a predetermined sequence of different temperatures, e.g. for treating nucleic acid samples
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- B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
- B01L3/502—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures
- B01L3/5027—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip
- B01L3/502761—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip specially adapted for handling suspended solids or molecules independently from the bulk fluid flow, e.g. for trapping or sorting beads, for physically stretching molecules
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- C12M1/00—Apparatus for enzymology or microbiology
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- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/12—Means for regulation, monitoring, measurement or control, e.g. flow regulation of temperature
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- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/68—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving nucleic acids
- C12Q1/6813—Hybridisation assays
- C12Q1/6834—Enzymatic or biochemical coupling of nucleic acids to a solid phase
- C12Q1/6837—Enzymatic or biochemical coupling of nucleic acids to a solid phase using probe arrays or probe chips
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- B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
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- B01L2200/0684—Venting, avoiding backpressure, avoid gas bubbles
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- B01L2200/06—Fluid handling related problems
- B01L2200/0689—Sealing
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- B01L2300/00—Additional constructional details
- B01L2300/06—Auxiliary integrated devices, integrated components
- B01L2300/0627—Sensor or part of a sensor is integrated
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- B01L2300/00—Additional constructional details
- B01L2300/08—Geometry, shape and general structure
- B01L2300/0809—Geometry, shape and general structure rectangular shaped
- B01L2300/0816—Cards, e.g. flat sample carriers usually with flow in two horizontal directions
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- B01L2300/0809—Geometry, shape and general structure rectangular shaped
- B01L2300/0819—Microarrays; Biochips
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- B01L2300/08—Geometry, shape and general structure
- B01L2300/0861—Configuration of multiple channels and/or chambers in a single devices
- B01L2300/0877—Flow chambers
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- B01L2300/18—Means for temperature control
- B01L2300/1805—Conductive heating, heat from thermostatted solids is conducted to receptacles, e.g. heating plates, blocks
Definitions
- the present invention relates to a multiplex PCR chip and a multiplex PCR device comprising the same, more specifically, multiplex PCR chip for simultaneously detecting a plurality of nucleic acid molecules different from each other based on the position between a plurality of probes and comprising the same A multiplex PCR device.
- the present invention is derived from a study conducted with the support of the Health and Medical Research and Development Project of the Ministry of Health and Welfare, Korea Health Industry Development Institute. [Task unique number: HI13C2262, Project title: "Lap chip-based for ultra-fast diagnosis of malaria field tests.” Development of automated real-time PCR system for multi-channel simultaneous detection process "].
- PCR Polymerase chain reaction
- PCR Polymerase Chain Reaction
- the diagnosis through the nucleic acid amplification or a specific gene search technique has a limitation in that it searches for one template at a time.
- amplifying each one at a time is a cumbersome and time consuming task.
- cancer and genetic defects are known to be caused by complex mutations of various genes. Genetic polymorphisms or mutations require additional screening of zygotes due to changes in loci of various genes. Since the amount of nucleic acid that can be extracted from a limited sample in a general environment is finite, it is often impossible to repeat the diagnosis through nucleic acid amplification using a limited amount of nucleic acid.
- multiplex PCR there is a need for a technique for analyzing nucleic acids of many templates from the same sample at the same time, which may be referred to as multiplex PCR.
- 1 illustrates an exemplary process of conventional multiplex PCR.
- the conventional multiplex PCR may perform PCR by injecting a plurality of primer sets into one reaction vessel (or tube). Multiple sets of primers can be specifically hybridized to various sequences of nucleic acid molecules, so that multiple target nucleic acid sequences can be amplified at the same time. That is, multiplex PCR can identify / diagnose a plurality of genes and diseases in one experiment, thereby reducing the number of experiments and labor, and providing cost saving effects.
- the monitoring of the amplification products of multiplex PCR can be performed by irradiating excitation light and detecting the emission light generated during the amplification reaction, where the amplification for fluorescence is generated.
- Oligonucleotides i.e., primers or probes
- fluorescent dyes that can generate a signal indicative of the presence of the target nucleic acid sequence during the reaction are used, particularly in multiplex PCR to distinguish between multiple different nucleic acid sequences that can be amplified.
- oligonucleotides specific to each nucleic acid sequence can be used. That is, in conventional multiplex PCR, multiple fluorescent dyes must be labeled for the detection of multiple target nucleic acid sequences, and also for detection of multiple fluorescences from the multiple fluorescent dyes, each in a separate wavelength band. There is a need for multiple wavelength light sources and filters that are optimized for the detection of fluorescent dyes. This requires multiple wavelength-specific measurement times to increase the time spent detecting nucleic acid sequences, increase the overall size and complexity of the PCR device, and consequently can be cost-effective.
- the present invention has been made to solve the problem, and an object thereof is to provide a multiplex PCR device for simultaneously detecting a plurality of nucleic acid molecules different from each other based on positions between a plurality of probes.
- a multiplex PCR chip includes a plurality of hybridization reaction probes that specifically hybridize with different amplified sequences of the nucleic acid molecules so as to simultaneously detect a plurality of different nucleic acid molecules. It may be characterized by being spaced apart from each other.
- a multiplex PCR device includes the multiplex PCR chip; A light providing unit configured to irradiate excitation light toward the probe in the multiplex PCR chip; And a light detector for detecting emission light generated by a plurality of probes by the excitation light beam, wherein the light providing unit and the light detector detect light using a single wavelength of light. can do.
- a multiplex PCR device includes the multiplex PCR chip; And at least one heat block in contact with the multiplex PCR chip to transfer heat for multiplex PCR to the multiplex PCR chip.
- the sequences of nucleic acid molecules hybridized by the probes can be distinguished based on the positions between the probes.
- the need for different fluorescent dyes for labeling can be eliminated.
- the sequence of the nucleic acid molecule hybridized with the probe is distinguishable based on the position between the probes, detection of the multiplex PCR product is possible using only one light source and a filter. This can not only reduce the size of the optical equipment and reduce the cost of the equipment, but also improve the efficiency of the operation of the multiplex PCR apparatus, such as reducing the time required for detection.
- a plurality of probes can be bonded through a predetermined adhesive material on the surface of the multiplex PCR chip, thereby providing a more firm binding force, which will prevent the distorted results occurring during separation and hybridization and washing of the bonds. Can be.
- the adhesive material may form a porous structure, and by bonding the probe to the surface of the porous structure, the contact area between the probe and the multiplex PCR product may be increased, thereby improving reactivity.
- FIG. 1 illustrates an exemplary process of conventional multiplex PCR.
- FIG. 2 illustrates a multiplex PCR chip according to an embodiment of the present invention.
- Figure 3 shows a multiplex PCR device according to an embodiment of the present invention.
- FIG. 4 illustrates a multiplex PCR chip according to an embodiment of the present invention.
- FIG. 5 illustrates a multiplex PCR chip according to an embodiment of the present invention.
- FIG. 6 shows a multiplex PCR device according to an embodiment of the present invention.
- FIG. 7 shows a multiplex PCR device according to an embodiment of the present invention.
- FIG. 8 illustrates an example of using a multiplex PCR chip according to an embodiment of the present invention.
- FIGS. 9A-9D illustrate a thermal block in accordance with one embodiment of the present invention.
- FIG. 10 shows a multiplex PCR device according to an embodiment of the present invention.
- 11A and 11B show a multiplex PCR device according to an embodiment of the present invention.
- FIG. 12 illustrates a multiplex PCR device according to an embodiment of the present invention.
- Figure 13 shows an experimental example of a multiplex PCR device according to an embodiment of the present invention.
- the multiplex PCR device is a device for performing a multiplex polymerase chain reaction (PCR) to amplify various nucleic acids having a specific base sequence.
- PCR polymerase chain reaction
- the multiplex PCR apparatus heats a double strand of DNA by heating a sample solution containing a double strand of DNA to a specific temperature, for example, about 95 ° C.
- a denaturing step of separating single-stranded DNA, an oligonucleotide primer having a sequence complementary to the specific nucleotide sequence to be amplified in the sample solution, and providing a specific temperature with the isolated single-stranded DNA For example, an annealing step in which a primer is attached to a specific base sequence of a single strand of DNA by cooling to 55 ° C. to form a partial DNA-primer complex, and the sample solution is subjected to an appropriate temperature, for example, after the annealing step.
- the multiplex PCR apparatus refers to an apparatus including modules for performing steps, and detailed modules not described herein are disclosed and apparent in the prior art for performing PCR. It is assumed that it is equipped with all in the range.
- the multiplex PCR device can perform the multiplex PCR and at the same time measure and analyze the presence and extent of the multiplex PCR product generation.
- the fluorescent material is added to the multiplex PCR chip, and the fluorescent material emits light by light of a specific wavelength in accordance with the generation of the PCR product, thereby causing an optical signal that can be measured and analyzed.
- FIG. 2 illustrates a multiplex PCR chip according to an embodiment of the present invention.
- the multiplex PCR chip 200 is for performing amplification (amplification reaction) of nucleic acid molecules, detection of a target sequence (hybridization reaction), and the like. It may include.
- the fluid is a nucleic acid such as double stranded DNA, an oligonucleotide primer having a sequence complementary to the specific nucleotide sequence to be amplified, DNA polymerase, deoxyribonucleotide triphosphates (dNTP), PCR reaction buffer (PCR). sample buffer, including a reaction buffer).
- At least a part of the multiplex PCR chip 200 may be implemented with a light transmissive material, and may preferably include a light transmissive plastic material.
- Multiplex PCR chip 200 using a plastic material can increase the heat transfer efficiency only by adjusting the thickness of the plastic, it is possible to reduce the manufacturing cost because the manufacturing process is simple.
- the multiplex PCR chip 200 may have a light transmitting property as a whole, direct light irradiation is possible in a state in which it is disposed on one surface of the heat block, thereby measuring and analyzing nucleic acid amplification and amplification degree in real time. can do.
- the multiplex PCR chip 200 contacts the thermal block, the heat of the thermal block is transferred to the multiplex PCR chip 200 and included in the reaction region 224 of the multiplex PCR chip 200.
- the heated fluid may be heated or cooled to maintain a constant temperature.
- the multiplex PCR chip 200 may have a planar shape as a whole, but is not limited thereto.
- the multiplex PCR chip 200 may include a probe 240 fixed therein for the hybridization reaction.
- Probe 240 is a labeled oligonucleotide capable of generating a signal indicative of the presence of a target nucleic acid sequence during an amplification reaction to detect nucleic acid to be amplified by PCR, and may specifically hybridize with the amplified sequence of the nucleic acid molecule.
- Each probe 240 may hybridize to different amplified sequences of nucleic acid molecules.
- Each probe 240 may be coupled to be spaced apart from each other on the surface of the multiplex PCR chip 200. This bonding is performed by applying the probe 240 onto the surface of the multiplex PCR chip 200 using, for example, a spotter, an arrayer, an ink-jet, or the like. Can be. According to an embodiment, each probe 240 may be covalently bound on the surface of the multiplex PCR chip 200 or coupled through an adhesive material.
- the adhesive material may be at least one of hydrogel, agarose and paraffin. The adhesive materials can provide a stronger bond compared to the covalent bond between the conventional probe 240 and the multiplex PCR chip 200, which can prevent distorted results during separation and hybridization and washing of the bond. . In addition, the adhesive materials may form a porous structure.
- the contact area between the probe 240 and the multiplex PCR product may be formed by binding the probe 240 to the surface of the porous structure.
- the probe 240 may be disposed on an upper surface of the reaction region 224 (or an upper inner surface of the multiplex PCR chip 200 or a lower surface of the third plate 230). Bubbles may occur during the PCR reaction, and these bubbles may cause interference in measuring the PCR reaction product. However, as shown in FIG. 2, the probe 240 is disposed on the upper surface of the reaction zone 224. The bubble is moved around the probe 240, thereby eliminating such interference to improve measurement efficiency.
- the same fluorescent dye may be used for the plurality of probes 240.
- probes 240 labeled with fluorescent dyes having different colors should be used to distinguish sequences of nucleic acid molecules hybridized by a plurality of probes 240, but in the present invention, Even if the same fluorescent dye is used, a plurality of probes 240 are spaced apart at predetermined intervals, and thus the sequence of nucleic acid molecules hybridized by the probes 240 can be distinguished based on the positions between these probes 240. The need for different fluorescent dyes can be eliminated.
- the present invention by using one light source and a filter, detection of a multiplex PCR product is possible, which not only reduces the size of the optical equipment and reduces the equipment cost, but also reduces the time required for detection.
- the efficiency of operation of the multiplex PCR device can be improved.
- a flat plate-shaped first plate 210 may be provided as a base of the multiplex PCR chip 200.
- the second plate 220 and the third plate 230 may be sequentially disposed on the first plate 210.
- the first plate 210 may be made of various materials, but preferably, polymethylmethacrylate (PMMA), polycarbonate (PC), cycloolefin copolymer (COC), polyamide (polyamide, PA), polyethylene, PE, polypropylene, PP, polyphenylene ether (PPE), polystyrene (PS), polyoxymethylene (POM), polyether Polyetheretherketone (PEEK), polytetrafluoroethylene (PTFE), polyvinylchloride (PVC), polyvinylidene fluoride (PVDF), polybutylene terephthalate (PBT) , Fluorinated ethylenepropylene (FEP), perfluoroalkoxyalkane (PFA), and combinations thereof It may be a thermoplastic resin or a thermosetting resin material.
- PMMA polymethylmethacrylate
- PC polycarbonate
- COC cycloolefin copolymer
- PA polyamide
- PE polypropylene
- PP poly
- the second plate 220 may be disposed on the first plate 210.
- the second plate 220 may include an inlet 222 through which a fluid (for example, a sample solution containing a nucleic acid to be amplified) is introduced, a reaction region through which the introduced fluid moves, and a PCR reaction and a hybridization reaction are performed ( 224 and an outlet portion 226 through which the reaction is completed is discharged.
- the reaction zone 224 of the second plate 220 is formed by recessing from the surface (eg, top and / or bottom) of the second plate 220 or through the second plate 220. Can be.
- the inlet 222 and the outlet 226 of the second plate 220 penetrate the second plate 220 and, at the same time, from the surface of the second plate 220, as described in more detail below. It may be formed to protrude.
- the second plate 220 may be formed of various materials, but preferably, polydimethylsiloxane (PDMS), cyclo olefin copolymer (COC), polymethyl methacrylate (PMMA) , Polycarbonate (PC), polypropylene carbonate (PPC), polyether sulfone (PES), and polyethylene terephthalate (PET), and combinations thereof It may be a material.
- PDMS polydimethylsiloxane
- COC cyclo olefin copolymer
- PMMA polymethyl methacrylate
- PC Polycarbonate
- PPC polypropylene carbonate
- PES polyether sulfone
- PET polyethylene terephthalate
- the thickness of the second plate 220 may vary, but may be selected from 0.1 mm to 2.0 mm.
- the width and length of the reaction zone 224 may vary, but preferably the width of the reaction zone 224 is selected from 0.5 mm to 3 mm, and the length of the reaction zone 224 is 20 mm to 60 mm. Can be selected from.
- the inner wall of the second plate 220 may be coated with a material such as silane-based and Bovine Serum Albumin (BSA) to prevent DNA and protein adsorption. The treatment can be performed according to methods known in the art.
- the inlet 222 may have various sizes, but preferably may be selected from a diameter of 1.0 mm to 3.0 mm.
- the outlet portion 226 may have various sizes, but preferably may be selected from 1.0 mm to 3.0 mm in diameter.
- the third plate 230 may be disposed on the second plate 220. Specifically, the third plate 230 is disposed on the second plate 220, so that a portion of the reaction zone 224 of the second plate 220 (that is, the reaction zone 224 of the second plate 220) is provided. At the same time, the PCR reaction product may be measured through at least one probe 240 spaced apart from each other on a portion of the lower surface of the third plate 230.
- the third plate 230 may be formed of various materials, but preferably, polydimethylsiloxane (PDMS), cyclo olefin copolymer (COC), polymethyl methacrylate (PMMA) , Polycarbonate (PC), polypropylene carbonate (PPC), polyether sulfone (PES), and polyethylene terephthalate (PET), and combinations thereof It may be a material.
- the thickness of the third plate 230 may vary, but preferably may be selected from 0.1 mm to 2.0 mm.
- the shape of at least one of the first plate 210, the second plate 220 and the third plate 230 may be injection molded, hot-embossing, casting, laser ablation. It can be formed by various mechanical and chemical processing processes. The machining process is exemplary, and various machining processes may be applied according to the embodiment to which the present invention is applied.
- the bonding between the first plate 210 and the second plate 220 and / or the bonding between the second plate 220 and the third plate 230 may be, for example, thermal bonding, ultrasonic bonding, ultraviolet bonding, solvent, or the like. It can be carried out by various bonding methods applicable in the art, such as bonding, tape bonding.
- surface treatment may be performed on at least a portion (eg, an inner wall of the second plate 220) of the inner surface of the multiplex PCR chip 200.
- a material such as silane series, Bovine Serum Albumin (BSA) to prevent DNA and protein adsorption on the surface, such surface treatment is It can be performed according to various techniques known in the art.
- BSA Bovine Serum Albumin
- the multiplex PCR chip 200 is provided with separate cover means (not shown) for the inlet 222 and / or outlet 226, the inlet 222 and the outlet Contamination inside the multiplex PCR chip 200 through the unit 226 may be prevented, or leakage of fluid injected into the microfluidic chip 200 may be prevented.
- cover means may be embodied in various shapes, sizes or materials.
- the shape or structure of the multiplex PCR chip 200 shown in FIG. 2 is exemplary, and microfluidic chips of various shapes or structures may be used according to the embodiment to which the present invention is applied.
- Figure 3 shows a multiplex PCR device according to an embodiment of the present invention.
- At least one region (ie, one region of the lower surface of the third plate 230) of the inner surface of the multiplex PCR chip 300 is treated with a hydrophilic material 310 to perform multiplex PCR.
- a hydrophilic material 310 may be a variety of materials, but may be preferably selected from the group consisting of carboxyl group (-COOH), amine group (-NH2), hydroxy group (-OH), and sulfone group (-SH). .
- the treatment of the hydrophilic material 310 may be treated by a method selected from the group consisting of oxygen and argon plasma treatment, corona discharge treatment, and surfactant application, which is exemplary, the embodiment to which the present invention is applied Depending on the various treatment methods known in the art can be applied.
- FIG. 4 illustrates a multiplex PCR chip according to an embodiment of the present invention.
- the third plate 230 may include a portion of the reaction region 224 of the second plate 220 (that is, the reaction region of the second plate 220). 224) can be inserted into the through region. For this purpose, some regions 410 of the lower surface of the third plate 230 may protrude downward. The protruding region 410 covers the through region of the reaction region 224 of the second plate 220, and the third plate 230 and the second plate 220 through insertion into the through region. Easy joint alignment of the can be achieved.
- the shape of the multiplex PCR chip 400 illustrated in FIG. 4 is exemplary and various shapes may be applied according to an embodiment to which the present invention is applied.
- FIG. 5 illustrates a multiplex PCR chip according to an embodiment of the present invention.
- Figure 5 (a) shows a plan view of the multiplex PCR chip 500
- Figure 5 (b) shows a cross-sectional view in the AA 'direction of the multiplex PCR chip 500
- Figure 5 (c) shows a bottom perspective view of the inner surface of the multiplex PCR chip 500 shown in Figs. 5A and 5B.
- the multiplex PCR chip 500 may further include a probe fixing part 510.
- Probe fixing portion 510 is for receiving and fixing the probe 240 for the detection of the target sequence, for example, formed in one region of the lower surface of the third plate 230 of the multiplex PCR chip 500 It may be composed of a central portion 512 and a peripheral portion 514 protruding to surround the central portion 512.
- the center portion 512 may provide an accommodation space of the probe 240, and the peripheral portion 514 may prevent the probe 240 from being separated from the center portion 512.
- the shape of the probe fixing part 510 shown in FIG. 5 is exemplary, and various shapes of the probe fixing part may be used according to an embodiment to which the present invention is applied.
- FIG. 6 shows a multiplex PCR device according to an embodiment of the present invention.
- Figure 6 (a) shows a plan view of the multiplex PCR chip 600
- Figure 6 (b) shows a cross-sectional view in the AA 'direction of the multiplex PCR chip 600
- Figure 6 (c) shows a bottom perspective view of a part of the multiplex PCR chip 600 shown in Figs. 6A and 6B.
- the reaction zone 224 may include a light measurement zone for measuring a product of various reactions (eg, PCR reaction, hybridization reaction, etc.) performed in the reaction zone 224.
- the light measuring region may be at least a portion of the reaction region 224 in which the optical signal emitted from the reaction product is detected, and may correspond to the region in which the probe 240 in which the result of the hybridization reaction appears is disposed.
- the multiplex PCR chip 600 may further include a bubble removing unit 610.
- the bubble removing unit 610 is for preventing bubbles contained in the fluid from being located in a predetermined region (eg, the probe 240 or the probe fixing unit 510) of the reaction region, as shown. It may be formed to protrude downward from the inner surface of the third plate 230. Specifically, since the bubble removing unit 610 is formed to protrude into the reaction region from the lower inner surface of the third plate 230, bubbles contained in the fluid are pushed out of the bubble removing unit 610 due to buoyancy. It will be placed in the surrounding space. In other words, the bubbles deviate from the light measurement region to the outside, thereby not affecting the optical signal sensitivity emitted from the reaction product present in the light measurement region.
- the bubble removing unit 610 as at least part of the third plate 230 may be made of a light transmissive material, so that an optical signal generated from the reaction product in the light measuring region passes through the bubble removing unit 610.
- the light may be emitted to the outside of the multiplex PCR chip 600 without degrading the sensitivity.
- the reaction product in the reaction region 224 ie, the probe 240
- the optical signal sensitivity is significantly increased, so that a small number of small reaction products can be measured quickly and accurately at the same time.
- the bubble removing unit 610 is an example, and according to the embodiment to which the present invention is applied, the bubble removing unit 610 may be utilized for various purposes.
- the bubble removing unit 610 may be used to remove bubbles contained in the fluid from the flow of the fluid during the movement of the fluid through the reaction region.
- the shape of the bubble removing unit 610 shown in Figure 6 is an example, not limited to this, in accordance with an embodiment of the present invention, may be variously modified and applied.
- FIG. 7 shows a multiplex PCR device according to an embodiment of the present invention.
- FIG. 7A illustrates a plan view of the multiplex PCR chip 700
- FIG. 7B illustrates a cross-sectional view along the AA ′ direction of the multiplex PCR chip 700
- FIG. (c) shows a bottom perspective view of a part of the multiplex PCR chip 700 shown in Figs. 7A and 7B.
- the bubble removing unit 710 may be formed as an inclined surface extending from the lower inner surface of the third plate 230 to have an inclined surface and connected to the probe fixing unit 510. As described above, when the side surface of the bubble removing unit 710 is formed as an inclined surface, since the bubble is movable above the reaction region along the inclined surface, bubbles are more easily moved to the surrounding space of the bubble removing unit 710. can do.
- the probe fixing part may include a flat surface provided on the bottom surface of the periphery of the probe fixing part and an inclined surface extending from the circumference of the flat surface to be connected to the bubble removing unit.
- the side surface of the periphery of the probe fixing portion is formed of an inclined surface, similar to the bubble removing portion having the inclined surface on the side, bubbles around the probe are easily moved out of the optical measuring region (or above the reaction region) along the inclined surface. Therefore, the optical measurement efficiency can be further improved.
- the bubble removing unit may further include a bubble collecting unit formed by recessing the lower surface of the third plate upward along the circumference of the bubble removing unit. Since the bubble collecting portion is located above the reaction region relatively compared to regions other than the bubble collecting portion, bubbles pushed out of the bubble removing portion can be collected in the bubble collecting portion.
- FIG. 8 illustrates an example of using a multiplex PCR chip according to an embodiment of the present invention.
- heaters 810 and 810 ′ are applied to the inlet 222 and the outlet 226 of the multiplex PCR chip 200, so that the inside of the multiplex PCR chip (that is, the reaction region ( 224)).
- each of the inlet portion 222 and the outlet portion 226 of the multiplex PCR chip 200 has openings 820 and 830 and openings 820 and 830 formed through the second plate 220.
- Adjacent portions may include protrusions 840 and 850 formed by protruding the surface of the second plate 220. That is, the heaters 810 and 810 ′ are applied to the inlet 222 and the outlet 226 of the multiplex PCR chip 200 to transfer heat, and thus the protrusions of the inlet 222 and the outlet 226. 840 and 850 may melt to seal the openings 820 and 830. Through this, after the fluid is introduced into the reaction region 224 through the inlet 222, it is possible to prevent at least some of the fluid from being lost to the outside during the PCR reaction.
- FIGS. 9A-9D illustrate a thermal block in accordance with one embodiment of the present invention.
- the multiplex PCR chip 200 to 700 contacts at least one column block 900 to amplify a denaturation step, annealing step, and extension (or amplification) to amplify a nucleic acid molecule.
- the temperature for performing the step can be maintained.
- the thermal block 900 is connected to the substrate 910, the heating layer 920 disposed on the substrate 910, the insulation protection layer 930 disposed on the heating layer 920, and the heating layer 920.
- the electrode 940 may be provided.
- the substrate 910 is a plate material such as a plastic material, a metal material having high heat resistance, and is illustrated as a flat plate, but may have various shapes such as a semi-cylindrical shape and a hemispherical shape. In addition, the substrate 910 may serve to support the heating layer 920.
- the heating layer 920 may serve as a heat source of the thermal block 900 for performing the denaturation step, annealing step, and extension (or amplification) step of the multiplex PCR.
- the heating layer 920 may include a heating wire as a heat source.
- the heating wire may generate heat using power applied from the electrode 940, and may be operably connected to various temperature sensors (not shown) for monitoring the temperature of the heating wire.
- the hot wire may be arranged to be symmetrical in the vertical direction and / or the horizontal direction with respect to the center point of the surface of the thermal block 900 in order to maintain a constant internal temperature of the thermal block 900.
- the arrangement of the hot wires symmetrically in the vertical direction and / or the horizontal direction may vary.
- an adhesion reinforcing layer (not shown) may be formed between the substrate 910 and the heating layer 920 to strongly fix the heating layer 920 to the substrate 910.
- the adhesion reinforcing layer may be formed of silica or a polymer.
- the insulating protective layer 930 is for physically and / or electrically protecting the heating layer 920 and may include an insulating material.
- the insulating material may be selected from the group consisting of dielectric oxides, perylenes, nanoparticles, and polymer films. Meanwhile, the insulating protective layer 930 may be transparent.
- the electrode 940 is connected to the heat generating layer 920 directly or indirectly to supply power to the heat generating layer 920.
- the electrode 940 may be used with various materials capable of supplying power, and may be selected from the group consisting of metal materials, conductive epoxy, conductive pastes, solders, and conductive films, for example. According to FIG. 9, the electrodes 940 are connected to both sides of the heat generating layer 920, but may be connected to the heat generating layer 920 at various operable positions if power can be supplied to the heat generating layer 920. In addition, the electrode 940 may be included in the multiplex PCR apparatus or electrically connected to an externally arranged power source.
- the electrode 940 directly contacts the heat generating layer 920, connects the heat generating layer 920 to an external circuit (not shown) through a wire (not shown), and the wire is connected to the electrode 940.
- the terminal may be arranged to be stably fixed to the.
- the multiplex PCR chips 200 to 700 are in contact with at least a portion of the upper surface of the thermal block 900, and thus are heated or cooled according to the heat supply or recovery of the thermal block 900 to perform each reaction step of the multiplex PCR. Can be done. According to an embodiment, the multiplex PCR chips 200 to 700 may perform heat supply by directly or indirectly contacting the thermal block 900.
- the light reflection prevention layer 950 may be disposed in contact with the upper surface of the insulating protective layer 930 to further increase the sensing efficiency.
- the light reflection prevention layer 950 may perform an insulation protection function and a light reflection prevention function in combination with the insulation protection layer 930 and may include a light reflection prevention material.
- the anti-reflective material may be, for example, a fluoride such as MgF 2 , an oxide such as SiO 2 , or Al 2 O 3 , but is not limited as long as the material has a property of preventing light reflection.
- the light absorbing layer 960 may be disposed in contact with an upper surface of the insulating protective layer 930, and the light absorbing layer 960 may include a light absorbing material.
- the light absorbing material may be, for example, mica, but is not limited as long as the material has a property of absorbing light. Therefore, the light absorbing layer 960 absorbs a part of the light derived from the light source, and the generation of reflected light acting as noise of the optical signal can be suppressed as much as possible.
- the light absorbing material is formed on the lower surface of the thermal block 900 to form the light absorbing layer 960, and at the same time, the light reflecting preventing material is processed on the upper surface of the thermal block 900 to prevent the light reflection preventing layer 950 )
- the ratio of the optical signal to the noise should have the maximum possible value, and the ratio of the optical signal to the noise may be improved as the reflectance of the excitation light from the multiplex PCR chips 200 to 700 is lower. have.
- the structure and shape of the thermal block 900 shown in FIGS. 9A to 9D are exemplary and may be variously modified and applied according to an embodiment of the present invention. For example, depending on the embodiment, the stacking order between the components 910 to 960 forming the thermal block 900 may be changed.
- FIG. 10 shows a multiplex PCR device according to an embodiment of the present invention.
- the multiplex PCR device 1000 may be configured to drive light to provide light to a thermal block 900, multiplex PCR chips 200 to 700, and multiplex PCR chips 200 to 700.
- the display unit 1010 and the multiplex PCR chip (200 to 700) may further include a light detector 1020 is disposed to be driven to receive light.
- the light providing unit 1010 may be a module for providing light to the multiplex PCR chips 200 to 700.
- the light providing unit 1010 may include a light source for emitting light, such as a light emitting diode (LED) light source, a laser light source, a first light filter for selecting light having a predetermined wavelength from light emitted from the light source, and It may include a first optical lens for collecting the light emitted from the first optical filter to increase the intensity of the emitted light.
- the light provider 1010 may further include a first aspherical lens disposed to spread light between the light source and the first light filter. That is, by adjusting the arrangement direction of the first aspherical lens, it is possible to extend the light range emitted from the light source to reach the measurable area.
- the configuration of the light providing unit 1010 is not limited thereto.
- the light detector 1020 is a module for receiving the light emitted from the multiplex PCR chips 200 to 700 and measuring a PCR reaction product performed by the multiplex PCR chips 200 to 700. Light emitted from the light passes through or reflects through the multiplex PCR chip 200 to 700, specifically, the reaction region 224 or the probe 240 of the multiplex PCR chip 200 to 700, in this case generated by nucleic acid amplification.
- the optical detector 1020 may detect the optical signal.
- the light detector 1020 is a predetermined wavelength from the light emitted from the second optical lens, the second optical lens to collect the light emitted from the multiplex PCR chip (200 to 700) to increase the intensity of the emitted light It may include a second optical filter for selecting the light having a light analyzer for detecting an optical signal from the light emitted from the second optical filter.
- a second aspherical lens and / or a second aspherical lens disposed between the second optical filter and the optical analyzer and / or between the second aspherical lens and the optical analyzer are arranged to integrate light emitted from the second optical filter.
- a photodiode integrated circuit arranged to remove noise of the emitted light and to amplify the light emitted from the second aspherical lens.
- the light providing unit 1010 can detect the multiplex PCR product by using only one light source and the filter, without having to provide a plurality of light sources and filters.
- the light detection unit 1020 can also detect a multiplex PCR product even if only one filter is provided. This configuration of the light providing unit 1010 and the light detecting unit 1020 can reduce the size of the optical equipment and reduce the equipment cost, as well as reduce the time required for detection, compared to the conventional multiplex PCR device. Can be.
- the targets are monitored in real time by monitoring the reaction result by the amplification of the nucleic acid in the reaction region 224, particularly in the probe 240. Whether to amplify the nucleic acid sequence and the degree of amplification can be measured and analyzed in real time.
- the multiplex PCR apparatus 1000 adjusts a traveling direction of light so that the light emitted from the light providing unit 1010 may reach the light detecting unit 1020, and may be determined in advance. It may further comprise at least one dichroic filter for separating light having a wavelength.
- the dichroic filter is a module that reflects light at an angle selectively transmitted or selectively adjusted according to the wavelength.
- the first dichroic filter is inclined at an angle of about 45 degrees with respect to the optical axis of the light emitted from the light providing unit 1010, so that the light is selectively transmitted according to its wavelength and the long wavelength component is at right angles. It can be reflected to reach multiplex PCR chips 200-700.
- the second dichroic filter is disposed at an angle of about 45 degrees with respect to the optical axis of the light reflected from the multiplex PCR chip 200 to 700 and the thermal block, and the light is selectively short-wavelength component depending on its wavelength. And the long wavelength component may be reflected at right angles to reach the photodetector 1020.
- the light providing unit 1010 and the light detecting unit 1020 are shown to be disposed on the multiplex PCR chips 200 to 700 and the thermal block 900 (reflective type), but this is regarded as an example. It may be arranged in various locations according to the embodiment to which the invention is applied. For example, the light providing unit 1010 and the light detecting unit 1020 may be disposed (transmitted) above and below the multiplex PCR chip 200 to 700 and the thermal block 900.
- 11A and 11B show a multiplex PCR device according to an embodiment of the present invention.
- the multiplex PCR device 1100 includes a substrate 1110; A first row block 900A disposed on the substrate 1110 and a second row block 900B spaced apart from the first row block 900A; It may include a chip holder 1120 on which the multiplex PCR chips 200 to 700 are mounted and a driving unit 1130 to move the chip holder 1120.
- the substrate 1110 has no change in its physical and / or chemical properties due to the heating and temperature maintenance of the first thermal block 900A and the second thermal block 900B, and the first thermal block 900A and the second thermal block And any material having a material such that mutual heat exchange does not occur between 900B.
- the substrate 1110 may include or consist of a material such as plastic.
- the first row block 900A and the second row block 900B are for maintaining a temperature for performing a denaturation step, an annealing step and an extension (or amplification) step for amplifying a nucleic acid, which will be described with reference to FIG. 9.
- the description is the same as the column block 900 described above, and thus redundant descriptions are omitted.
- Each of the thermal blocks 900A, 900B may be implemented to maintain an appropriate temperature for performing the denaturation step, or the annealing and extension (or amplification) steps.
- the thermal blocks 900A, 900B may maintain 50 ° C. to 100 ° C., and preferably, 90 ° C. to 100 ° C.
- the denaturation step when the denaturation step is performed in the thermal blocks 900A, 900B, preferably Preferably, it may be maintained at 95 ° C., and may be maintained at 55 ° C. to 75 ° C., preferably at 72 ° C., when performing annealing and extension (or amplification) steps in thermal blocks 900A and 900B.
- the temperature is not limited so long as the denaturation step or the annealing and extension (or amplification) step can be performed.
- the first row block 900A and the second row block 900B may be spaced apart at a predetermined distance such that mutual heat exchange does not occur.
- the denaturation step and annealing and extension are performed. Accurate temperature control of (or amplification) steps is possible.
- the multiplex PCR chips 200 to 700 are in contact with one surface of each of the row blocks 900A and 900B, the first row block 900A and the second row block 900B are the multiplex PCR chips 200 to 700.
- the contact surface with 700 may be heated and temperature maintained as a whole, so that the fluid in the multiplex PCR chips 200 to 700 may be uniformly heated and temperature maintained.
- the chip holder 1120 may be equipped with multiplex PCR chips 200 to 700.
- the inner wall of the chip holder 1120 may have a shape and structure to be fixedly mounted to the outer walls of the multiplex PCR chips 200 to 700 so that the multiplex PCR chips 200 to 700 do not separate from the chip holder 1120.
- the multiplex PCR chip 200 to 700 may be detachable to the chip holder 1120.
- the chip holder 1120 may be operably connected to the driving unit 1130.
- the driver 1130 may move the chip holder 1120 left and right and / or up and down on the thermal blocks 900A and 900B.
- the driver 1130 may include all means for allowing the chip holder 1120 to move left and right and / or up and down over the first row block 900A and the second row block 900B.
- the chip holder 1120 is capable of reciprocating between the first row block 900A and the second row block 900B, and by the vertical movement of the drive unit 1130, The holder 1120 may be in contact with and separated from the first row block 900A and the second row block 900B.
- the driving unit 1130 includes a rail 1132 extending in the left and right directions, and a connecting member 1134 slidably moved in the left and right directions through the rail 1132 and slidable in the vertical direction.
- the chip holder 1120 may be disposed at one end of the connection member 1134.
- the driver 1130 reciprocates the multiplex PCR chips 200 to 700 mounted on the chip holder 1120 while reciprocating between the first row block 900A and the second row block 900B.
- the reaction can be carried out.
- the first heat block 900A may be heated and maintained at a temperature for the denaturation step, eg, 90 ° C. to 100 ° C., preferably at 95 ° C.
- the second row block 900B may be heated and maintained at a temperature for an annealing and extension (or amplification) step, eg, 55 ° C. to 75 ° C., preferably at 72 ° C.
- the chip holder 1120 equipped with the flex PCR chips 200 to 700 may be contacted with the first row block 900A to perform the first denaturation step of the multiplex PCR (step x).
- the coupling member 1134 of the driving unit 1130 is controlled to move the multiplex PCR chips 200 to 700 upward, thereby to move the chip holder 1120 on which the multiplex PCR chips 200 to 700 are mounted.
- the first denaturation step of the multiplex PCR is terminated by separating from the thermal block 900A, and the multiplex PCR chips 200 to 700 are moved onto the second thermal block 900B through the rail 1132 of the driving unit 1130. (Y step).
- the coupling member 1134 of the driving unit 1130 is controlled to move the multiplex PCR chips 200 to 700 downward to move the chip holder 1120 on which the multiplex PCR chips 200 to 700 are mounted.
- the thermal block 900B may be contacted to perform the first annealing and extension (or amplification) step of the multiplex PCR (step z).
- the multiplex PCR chip 200 to 700 is moved upward by controlling the connection member 1134 of the driving unit 1130, so that the chip holder 1120 on which the multiplex PCR chip 200 to 700 is mounted is second. Separating from the row block 900B terminates the first annealing and extension (or amplification) step of the multiplex PCR, and passes the multiplex PCR chips 200 to 700 through the rail 1132 of the driver 1130 in a first row.
- the nucleic acid amplification reaction can be performed by repeating steps x, y, and z (circulation step).
- FIG. 12 illustrates a multiplex PCR device according to an embodiment of the present invention.
- the light providing unit 1010 and the light detecting unit 1020 may be disposed with the first column block 900A and the second column block 900B interposed therebetween. have.
- a through part 1136 may be formed in the driver 1130 to pass light emitted from the light providing part 1010 to measure light.
- the multiplex PCR chip 200 to 700 may be formed of a light transmissive material. It may be a light transmissive plastic material.
- the nucleic acid is amplified in the multiplex PCR chips 200 to 700 during the nucleic acid amplification reaction by the multiplex PCR device 1200.
- the degree can be detected in real time.
- the multiplex PCR chip reciprocates between the first row block 900A and the second row block 900B to perform each step of the PCR reaction.
- the driving unit 1130 may stop the multiplex PCR chip 200 to 700 on the spaced space between the first row block 900A and the second row block 900B.
- the light is emitted from the light providing unit 1010, and the emitted light is the multiplex PCR chip 200 to 700, specifically, the reaction region 224 or the probe 240 of the multiplex PCR chip 200 to 700. Since it passes through, the light detector 1020 can detect the optical signal generated by the amplification of the nucleic acid.
- the reaction result of the amplification of the nucleic acid in the reaction region 224, in particular the probe 240, in real time during each cyclic step of the multiplex PCR reaction is monitored in real time.
- the amount of target nucleic acid sequence can thereby be measured and analyzed in real time.
- the light providing unit 1010 is shown at the bottom and the light detecting unit 1020 is located at the top. However, the light providing unit 1010 is at the top and the light detecting unit 1020 is at the bottom. Can be located.
- FIGS. 11A, 11B, and 12 a multiplex PCR apparatus for performing a PCR reaction using two column blocks 900A and 900B is illustrated, but this is merely an example, and the heat used to perform the PCR reaction is illustrated.
- the number of blocks can vary. For example, only one column block may be used for one multiplex PCR chip 200 to 700.
- Figure 13 shows an experimental example of a multiplex PCR device according to an embodiment of the present invention.
- a probe was prepared, spaced apart on a multiplex PCR chip, and a PCR reagent capable of being probed by the probe was injected, followed by PCR and fluorescence measurement.
- a prepolymer (or hydrogel solution) is prepared by mixing predetermined reagents, and a probe solution is prepared by mixing the prepolymer solution with an Ersinia enterocolitica forward primer. .
- the reagent composition of the prepolymer solution is as follows.
- composition of the probe solution is as follows.
- the probe solution may be placed in a multiplex PCR chip, and then irradiated with ultraviolet light to cure. The cured solution is then washed with the wash solution.
- a PCR reagent including a reverse primer capable of complementarily binding to a probe was injected with 20 uL into a multiplex PCR chip, followed by fluorescence measurement after PCR.
- composition of the PCR reagent is as follows.
- PCR driving conditions are as follows.
- the experimental results of the multiplex PCR chip of the present invention according to the above conditions are shown.
- a plurality of probes that are specifically hybridized with sequences of different nucleic acid molecules are spaced apart from each other to thereby sequence the nucleic acid molecules hybridized by the probes based on the positions between the probes.
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Abstract
Description
구성 | 부피(uL) |
PEGDA | 200 |
PEG | 400 |
Darocur 1173 | 50 |
3x TE Buffer | 350 |
구성 | 부피(uL) |
프리폴리머 용액 | 90 |
Yersinia enterocolitica Reverse Primer | 10 |
구성 | 부피(uL) |
NBS SYBR green 2x master mix | 10 |
Yersinia enterocolitia Reverse Primer | 2 |
Yersinia enterocolitia Template | 1 |
DW | 7 |
PCR 단계 | 온도(도) | 시간(초) | 사이클 |
Pre-Denaturation | 95 | 60 | 1 |
Denaturation | 95 | 10 | 40 |
Annealing | 68 | 10 |
Claims (17)
- 서로 상이한 다수의 핵산 분자를 동시에 탐지하기 위해 상기 핵산 분자의 서로 상이한 증폭된 서열과 특이적으로 혼성화되는 다수의 혼성화 반응용 프로브(probe)를 포함하고,상기 다수의 프로브는 서로 이격하여 고착되는 것을 특징으로 하는 멀티플렉스 PCR(Multiplex Polymerase Chain Reaction) 칩.
- 제 1 항에 있어서, 상기 멀티플렉스 PCR 칩은 상기 멀티플렉스 PCR 칩의 내부 표면과 상기 프로브 사이에 배치되어, 상기 멀티플렉스 PCR 칩의 표면과 상기 프로브 사이의 결합력을 향상시키는 접착 물질을 더 포함하는 것을 특징으로 하는 멀티플렉스 PCR 칩.
- 제 2 항에 있어서, 상기 접착 물질은 상기 프로브와 상기 핵산 분자 간의 접촉 면적을 증가시키도록 다공 구조(pore structure)를 형성하여 상기 다공 구조에 상기 프로브가 결합되도록 것을 특징으로 하는 멀티플렉스 PCR 칩.
- 제 3 항에 있어서, 상기 다공 구조는 하이드로겔(hydrogel), 아가로스(agarose) 및 파라핀(paraffin) 중 적어도 하나로 구성되는 것을 특징으로 하는 멀티플렉스 PCR 칩.
- 제 1 항에 있어서, 상기 프로브는, 상기 멀티플렉스 PCR 칩의 상부 내면에 배치되는 것을 특징으로 하는 멀티플렉스 PCR 칩.
- 제 1 항에 있어서, 상기 멀티플렉스 PCR 칩은, 평판 형상의 제 1 판; 상기 제 1 판 상에 배치되고, 유입부, 반응 영역 및 유출부를 포함하는 제 2 판; 및 상기 제 2 판 상에 배치되어 상기 반응 영역을 커버하고, 하부 표면에 상기 프로브가 이격 배치되는 제 3 판을 포함하는 것을 특징으로 하는 멀티플렉스 PCR 칩.
- 제 6 항에 있어서, 상기 멀티플렉스 PCR 칩은, 상기 프로브가 배치되는 중심부 및 상기 중심부를 둘러싸도록 상기 중심부에 인접하여 돌출 형성되는 주변부로 구성되는 프로브 고정부를 더 포함하는 것을 특징으로 하는 멀티플렉스 PCR 칩.
- 제 6 항에 있어서, 상기 멀티플렉스 PCR 칩은, 상기 반응 영역 내의 기포가 상기 프로브 상에 위치하는 것을 방지하기 위해 상기 제 3 판의 하부 내면으로부터 하부 방향으로 돌출되어 형성되는 광 투과성 재질의 기포 제거부를 포함하는 것을 특징으로 하는 미세유체 칩.
- 제 6 항에 있어서,상기 제 1 판은 폴리메틸메타크릴레이트(polymethylmethacrylate, PMMA), 폴리카보네이트(polycarbonate, PC), 사이클로올레핀 코폴리머(cycloolefin copolymer, COC), 폴리아미드(polyamide, PA), 폴리에틸렌(polyethylene, PE), 폴리프로필렌(polypropylene, PP), 폴리페닐렌 에테르(polyphenylene ether, PPE), 폴리스티렌(polystyrene, PS), 폴리옥시메틸렌(polyoxymethylene, POM), 폴리에테르에테르케톤(polyetheretherketone, PEEK), 폴리테트라프로오르에틸렌(polytetrafluoroethylene, PTFE), 폴리비닐클로라이드(polyvinylchloride, PVC), 폴리비닐리덴 플로라이드(polyvinylidene fluoride, PVDF), 폴리부틸렌테레프탈레이트(polybutyleneterephthalate, PBT), 불소화에틸렌프로필렌(fluorinated ethylenepropylene, FEP), 퍼플로로알콕시알칸(perfluoralkoxyalkane, PFA), 및 그의 조합물로 구성된 군으로부터 선택되는 열 가소성 수지 또는 열 경화성 수지 재질이고,상기 제 2 판 및 상기 제 3 판 각각은 폴리디메틸실옥산(polydimethylsiloxane, PDMS), 사이클로올레핀코폴리머(cycle olefin copolymer, COC), 폴리메틸메타크릴레이트(polymethylmetharcylate, PMMA), 폴리카보네이트(polycarbonate, PC), 폴리프로필렌카보네이트(polypropylene carbonate, PPC), 폴리에테르설폰(polyether sulfone, PES), 및 폴리에틸렌텔레프탈레이트(polyethylene terephthalate, PET) 및 그의 조합물로 구성된 군으로부터 선택되는 것을 특징으로 하는 멀티플렉스 PCR 칩.
- 제 6 항에 있어서, 상기 제 2 판의 상기 반응 영역 중 관통된 영역에 대응하도록 상기 제 3 판의 하면 중 적어도 일 영역이 돌출 형성되는 것을 특징으로 하는 멀티플렉스 PCR 칩.
- 제 6 항에 있어서,상기 유입부 및 상기 유출부 각각은 유체가 유입되는 개구부 및 상기 개구부에 인접하여 돌출 형성되는 돌출부를 포함하고, 상기 돌출부는 열을 인가받아 융해됨으로써 상기 개구부를 밀봉하는 것을 특징으로 하는 멀티플렉스 PCR 칩.
- 제 1 항에 따른 멀티플렉스 PCR 칩;상기 멀티플렉스 PCR 칩 내의 상기 프로브를 향해 여기 광선(excitation light)을 조사하는 광 제공부; 및상기 여기 광선에 의하여 다수의 프로브에서 발생하는 형광(emission light)을 검출하는 광 검출부를 포함하고,상기 광 제공부 및 상기 광 검출부에 의한 검출은 단일 파장의 광을 이용하여 수행되는 것을 특징으로 하는 멀티플렉스 PCR 장치.
- 제 1 항에 따른 멀티플렉스 PCR 칩; 및상기 멀티플렉스 PCR 칩에 접촉하여, 상기 멀티플렉스 PCR 칩에 멀티플렉스 PCR을 위한 열을 전달하는 적어도 하나의 열 블록을 포함하는 것을 특징으로 하는 멀티플렉스 PCR 장치.
- 제 13 항에 있어서,상기 멀티플렉스 PCR 칩이 장착되는 칩 홀더; 및 상기 칩 홀더를 상기 열 블록 위로 좌우 및 상하 이동시키는 구동부를 더 포함하고, 상기 열 블록은 제 1 열 블록 및 제 2 열 블록을 포함하는 것을 특징으로 하는 멀티플렉스 PCR 장치.
- 제 14 항에 있어서, 상기 제 1 열 블록 및 상기 제 2 열 블록 중 하나의 열 블록은 PCR 반응의 변성 단계 온도를 유지하도록 구현되고, 다른 하나의 열 블록은 PCR 반응의 어닐링 및 연장 (혹은 증폭) 단계 온도를 유지하도록 구현된 것을 특징으로 하는 멀티플렉스 PCR 장치.
- 제 14 항에 있어서, 상기 제 1 열 블록과 상기 제 2 열 블록은 상호 열 교환이 일어나지 않도록 이격 배치되는 것을 특징으로 하는 멀티플렉스 PCR 장치.
- 제 14 항에 있어서, 상기 구동부는 좌우 방향으로 연장된 레일, 및 레일을 통해 좌우 방향으로 슬라이딩 이동 가능하게 배치되고, 상하 방향으로 슬라이딩 이동 가능한 연결 부재를 포함하고, 연결 부재의 일 말단은 칩 홀더가 배치되는 것을 특징으로 하는 멀티플렉스 PCR 장치.
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CN201580039349.9A CN106661533B (zh) | 2014-07-23 | 2015-06-22 | 多重pcr芯片及包含其的多重pcr装置 |
JP2017500852A JP6695319B2 (ja) | 2014-07-23 | 2015-06-22 | マルチプレックスpcrチップ及びそれを含むマルチプレックスpcr装置 |
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KR102272251B1 (ko) | 2019-05-02 | 2021-07-02 | 재단법인 오송첨단의료산업진흥재단 | 다중 분석을 위한 분기형 바이오 칩 |
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