WO2005010529A1 - 非特異吸着を抑制した基材表面 - Google Patents
非特異吸着を抑制した基材表面 Download PDFInfo
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- WO2005010529A1 WO2005010529A1 PCT/JP2004/011123 JP2004011123W WO2005010529A1 WO 2005010529 A1 WO2005010529 A1 WO 2005010529A1 JP 2004011123 W JP2004011123 W JP 2004011123W WO 2005010529 A1 WO2005010529 A1 WO 2005010529A1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/543—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- 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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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
- G01N27/327—Biochemical electrodes, e.g. electrical or mechanical details for in vitro measurements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
- G01N27/327—Biochemical electrodes, e.g. electrical or mechanical details for in vitro measurements
- G01N27/3271—Amperometric enzyme electrodes for analytes in body fluids, e.g. glucose in blood
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/543—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals
- G01N33/54366—Apparatus specially adapted for solid-phase testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/543—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals
- G01N33/54393—Improving reaction conditions or stability, e.g. by coating or irradiation of surface, by reduction of non-specific binding, by promotion of specific binding
Definitions
- the present invention relates to the surface of a substrate, particularly a biosensor chip or the like, and more particularly to a surface treated with a non-crosslinked polymer based on polyethylene glycol (hereinafter sometimes abbreviated as PEG) chain segments.
- PEG polyethylene glycol
- the present invention relates to a substrate surface and a biosensor provided with the surface.
- the present inventors previously constructed a brush-like water-soluble polymer such as polyethylene dalicol on the surface of a substrate, not only to suppress nonspecific adsorption on the sensor surface, but also to stabilize the dispersion of nanoparticles.
- a brush-like water-soluble polymer such as polyethylene dalicol
- these inventions are described as having an increased density poly (ethylene oxide) brush-like structure surface (eg, WO 03/07693 33 A 1), poly (ethylene glycol) B) Table of biosensors carrying segment-containing polymer derivatives Surface (for example, JP-A-2003-149492), dispersion-stabilizing functional fine metal particles and semiconductor fine particles (for example, JP-A-200-080903).
- an increased density poly (ethylene oxide) brush-like structure surface eg, WO 03/07693 33 A 1
- poly (ethylene glycol) B) Table of biosensors carrying segment-containing polymer derivatives Surface for example, JP
- a biomolecule such as an antibody is bound to the constructed brush tip and used as a system for sensitively sensing a specific reaction such as antigen recognition.
- a specific reaction such as antigen recognition.
- a polymer derived from glycosylethyl (meth) tallylate may be attached to an extra protein binding site on the solid phase surface and included in the measurement sample.
- a method for preventing nonspecific adsorption of contaminating proteins and the like Japanese Patent Application Laid-Open No.
- the present inventors have studied to provide a more stable surface capable of suppressing non-specific adsorption as compared with the conventional method as described above, and a surface that can be easily prepared.
- a solid surface for immunoassay for example, a surface derived from gold, polystyrene, or polyvinylidene fluoride
- a PEG chain brush can be immobilized on the surface without providing, and without adversely affecting the specific binding capacity of an antibody or an antigen.
- the recognition ability of antibodies and the like acts in a PEG chain length-dependent manner, a method for performing specific molecular recognition with high sensitivity by designing in consideration of optimization of the chain length and the like was found. .
- a substance for detecting an analyte or a substrate surface on which the analyte is immobilized wherein the substrate surface is formed at the same time as the substance or the analyte, or After the substance or analyte is immobilized on the substrate, a substrate surface formed by treatment with a non-crosslinked polymer mono-containing solution based on polyethylene glycol chain segments is provided.
- a non-crosslinked polymer based on a polyethylene glycol chain segment as described above has the formula (I):
- R 1 is a hydrogen atom, methyl, optionally protected formyl, optionally protected amino, optionally protected hydroxyl, optionally protected hydroxyl or vinylsulfonyl group.
- L and L 2 independently represent a valence bond or a linker
- X represents a functional group or a functional moiety for forming a covalent bond or a bond through physical interaction capable of immobilizing the polymer molecule on the surface of the porous particle;
- n is an integer from 2 to 20 and 00
- a substrate surface a substrate surface
- B an aqueous solution of a substance for detecting an analyte modified so as to be immobilized on the substrate surface.
- a non-crosslinked polymer-containing liquid based on polyethylene dalicol chain segments is contacted simultaneously or subsequently with the substrate surface under conditions sufficient for each to be immobilized on the substrate surface of (A)
- the method for producing a substrate surface according to claim 1 is provided.
- a biosensor provided with the above substrate surface is provided.
- FIG. 1 is a graph showing the blocking ability of a surface on which human IgG is immobilized and the results of anti-human IgG antibody sending.
- FIG. 2 is a graph showing changes in absorption before and after the addition of biotinylated BSA to a streptavidin-immobilized PEGylated gold colloid solution.
- FIG. 3 is a graph showing the amount of change in the sensorgram when the spr sensor having a biotin-PEG brush surface and a PEGylated gold colloid solution carrying a hestreptavidin-carried and BSA-carried.
- Figure 4 shows a sensorgram of the PEGylated gold colloid solution carrying anti-biotin antibody contacted with the spr sensor having a brushed PEG brush surface. It is a graph which shows the amount of change.
- FIG. 5 is a graph showing the relationship between acetal-PEG / PAMA surface treatment conditions for magnetic latex and zeta potential.
- FIG. 6 is a graph showing the dependence of the amount of adsorbed serum albumin on the acetal-PEG / PAMA surface treated and untreated magnetic latex as a function of the number of washings.
- Fig. 7 shows a comparison of anti-goat IgG detection ability by coating goat IgG antibody carrying dynabeads with a block polymer.
- the five data on the left are the sensing capabilities of various particles, and the five data on the right are graphs showing non-specific adsorption to particles that do not carry antibodies on the surface.
- FIG. 8 is a graph showing the S / N obtained from FIG. PEHA-Ph-PEG-0H blocking may be present.
- FIG. 9 is a graph showing the results of surface treatment of JSR antibody-loaded magnetic particles with PEHA-Ph-PEG-0H. It is confirmed that non-specific adsorption is extremely suppressed.
- FIG. 10 is a graph showing the results of surface treatment of magnetic particles carrying a JSR antibody with PEHA-Ph-PEG-0H. It was confirmed that the antigen detection ability was sufficiently high.
- FIG. 11 is a graph showing the results of surface treatment of magnetic particles carrying dynabead antibodies with PEHA-Ph-PEG-0H. It was confirmed that the antigen detection ability was sufficiently high.
- FIG. 12 is a graph showing the results of surface treatment of magnetic particles carrying dynabead antibodies with PEHA-Ph-PEG-0H. Nonspecific adsorption is suppressed by surface treatment.
- Figure 13 shows a table of Dynabeads antibody-loaded magnetic particles using PEHA-Ph-PEG-0H. Indicates surface treatment and S / N.
- FIG. 14 is a photograph instead of a drawing showing the presence or absence of nonspecific adsorption of a fluorescently labeled protein on a Western blotting PVDF membrane.
- FIG. 15 is a graph showing a comparison of the surface potential when the glass surface was treated with Acetal-PEG-b-PAMA.
- FIG. 16 is a photograph in place of a drawing showing the result of performing the Western Plot method according to Example 16.
- Figure 1 7 is a top silicone surface, poly trimethylene butoxy silyl propyl main Takuri Reto P EG graft copolymer (PT S PM- g- P EG 110 .) The treated surface charge of the case, the untreated silicone surfaces of Compared to figure tffl 5 .
- Figure 1 8 is poly preparative Increment butoxy silyl propyl methacrylate click Li rate one P EG graph preparative copolymer was coated on (PTS PM- g -P EG 1 100 ) were washed glass table surface, it as a mold
- PTS PM- g -P EG 1 100 washed glass table surface, it as a mold
- FIG. 19 is a graph showing the results of comparing the adsorptivity of fluorescence-labeled human IgG to the surface of the silicone after the surface treatment, with respect to the untreated surface.
- FIG. 20 is a graph showing the results of comparing the adsorptivity of fluorescence-labeled mouse serum albumin to the silicon surface after surface treatment with the untreated surface.
- Analytes include biospecific binding pairs, such as antigens or haptens and antibodies, oligonucleic acids and nucleic acids that hybridize under stringent conditions, enzymes and their substrate sugars and lectins, hormones and their receptor proteins And avidin (including streptavidin) and piotin (including testobitin, iminobiotin, and aminobiotin).
- biospecific binding pairs such as antigens or haptens and antibodies, oligonucleic acids and nucleic acids that hybridize under stringent conditions, enzymes and their substrate sugars and lectins, hormones and their receptor proteins And avidin (including streptavidin) and piotin (including testobitin, iminobiotin, and aminobiotin).
- the surface of the substrate on which such a substance (which may itself be an analyte) is immobilized is in the form of a solid phase, such as a bioassay chip, biosensor, etc., for detecting these substances. It is a surface, and the material of those surfaces may be any as long as it meets the purpose of the present invention.
- the substrate surface may be an electrochemical sensor surface commonly used in the art (eg, made of precious metal, metal oxide, etc.), a surface plasmon (SPR) sensor surface (eg, made of precious metal), a quartz oscillation sensor.
- ELISA immobilized enzyme Immunoassay
- microplate surface eg, polystyrene, polypropylene, polytetrafluoroethylene
- plastic surface for protein or nucleic acid plots eg, -trocellulose, etc.
- microarray surface for nucleic acid hybridization eg, glass, plastic
- silicon eg, polydimethylsiloxane treatment
- the substrate and the substrate surface that are integrated are a gold particle surface, a semiconductor particle surface, a magnetic particle surface, a silica particle surface, a porous particle surface, and any one of these particles.
- Preferred examples include the surface of the latex particles containing the same. Modified so that one or the other of the above specific binding pairs is immobilized on these surfaces, in a manner known per se in the art, e.g., deposition of gold on the surface of the substrate.
- a member in which a mercapto group is introduced into the terminal of the member can be used.
- the surface of the substrate of the present invention may be used simultaneously with a substance or an analyte (for example, a member of a specific binding pair) for detecting an analyte modified so as to be immobilized on the surface of the substrate, or on the surface. It is formed by treating the surface of a substrate with a liquid containing a non-crosslinked polymer based on a polyethylene dalicol chain segment after the substance or the analyte is fixed.
- a substance or analyte for detecting an analyte is formed on a previously immobilized substrate surface, followed by treating the surface with a non-crosslinked polymer based on polyethylene glycol chain segments.
- Substrate surface the substrate surface to which the substance or analyte is pre-fixed is a surface currently used or proposed for use in the art, as described in detail above. Includes all that apply to the surface.
- Polymers that can be used effectively for such surface treatment are those represented by formula (I).
- Specific examples of X in the polymer of the formula (I) include, but are not limited to, a mercapto group (-SH), a silanol group (Si (OH) 3 ), a carboxyl group, and an amino group.
- X is an oligo or polyimino main chain moiety having a plurality of imino groups (one NH—) in the main chain;
- R 2 is a hydrogen atom or lower alkyl (for example, a linear or branched alkyl having 1 to 6 carbon atoms, for example, methyl, ethyl, Propyl, isopropyl, n-hexyl and the like. same as below. )
- R 2 is a hydrogen atom or lower alkyl (for example, a linear or branched alkyl having 1 to 6 carbon atoms, for example, methyl, ethyl, Propyl, isopropyl, n-hexyl and the like. same as below. )
- X is an oligo or polymer main chain moiety having a mono or di-lower alkyl-substituted amino group on the side chain, for example,
- R 3 , R 4 , R 5 and R 6 independently represent a hydrogen atom or a lower alkyl, 1 represents an integer of 1-2000, and L 3 represents
- Such a polymer having X can be produced, for example, by the method described in X., ⁇ . Agasaki et al., Macromol.Chem.Jtapid Commun. 1997, 18,927, or according to Japanese Patent Application No. 2003-490000. Can be.
- X is an oligo or polymer main chain moiety having a silanol group (or a trimethoxysilyl group) in the side chain;
- R 3 , R 4 and L 3 are the same as above, and R 8 is lower alkyl, especially methyl or a hydrogen atom).
- X like this
- the polymer having the following structure can be obtained by, for example, hydrolyzing a trial oxysilyl compound which can be produced according to the method described in Y. Nagasaki et al., Or US Pat. No. 5,929,177. Is obtained.
- X is an oligo or polymer main chain moiety having a carboxyl group in the side chain, for example,
- X is an oligo or polylactide backbone moiety, for example,
- q is an integer of 2 to 100, 0000.
- X-containing polymers are described, for example, in U.S. Patent No. 5,925,720.
- Other polymers can be obtained according to the method for producing various polymers having X, or by improving them.
- X is a monomer that can be used for the production of a polymer having a trimethoxysilyl group in the side chain, for example, a copolymer of trimethoxysilylpropyl (meth) acrylate and polyethylene daricol (meth) acrylate. Coalescing, for example, the expression
- r, s and t are independently an integer from 2 to 10,000, and R 3 is independently a hydrogen atom or a methyl group.
- the polymer represented by is included in the polymer according to the present invention when the substrate surface is made of silicone.
- a polymer is useful not only for the treatment of the biosensor surface as described above, but also as a polymer for treating the surface of a column for capillary electrophoresis and other microchannel surfaces.
- Such a surface is stable against the flow of the sample solution, and also suppresses adsorption of proteins and the like in the biological sample, for example, and prevents clogging and the like.
- Li when Li is a linker, typical examples thereof include, but are not limited to, one (CH 2 ) P — 0—,-(CH 2 ) q one COO, ⁇ ,> ⁇ CH 2 —— 0—— or one (CH 2 ) r — S—, where p, q and r are each independently 0-8 Is an integer.
- These linkers have a structure that is incorporated in the L direction of the above formula (I) in the described direction.
- typical examples of the case where L 2 is a linker include, but are not limited to, one (CH 2 ) k- ,
- optionally protected amino, optionally protected carboxy, and optionally protected hydroxyl are protected or unprotected by a protecting group known in the technical field such as peptide synthesis. Means a group in the state of
- protected amino groups include maleimide
- hydroxyl protecting groups also include p-toluenesulfonyl group.
- the substrate surface includes a substrate for preparing the substrate surface and an aqueous solution of the above-described modified analyte or an analyte (including an aqueous solution buffered with PBS or the like).
- the above-mentioned polymer-containing liquid a water-miscible organic solvent such as methanol, ethanol, tetrahydrofuran, dimethylformamide, dimethylsulfoxide, etc., and an aqueous solution which may be buffered with PBS or the like).
- a water-miscible organic solvent such as methanol, ethanol, tetrahydrofuran, dimethylformamide, dimethylsulfoxide, etc.
- an aqueous solution which may be buffered with PBS or the like.
- Sufficient conditions vary depending on the polymer used and the nature of the substrate surface, but at a temperature from 5 ° C to a temperature at which the substance does not denature, for example, at a temperature from 55 ° C to several hours to several 10 hours. Incubation conditions are included '. Further, the conditions for treating the surface of the substrate having the substance fixed in advance with the polymer can be carried out under almost the same conditions as those described above. Thus, the substrate surface of the present invention can be provided.
- Such polymers are usually in the area a reference of the substrate surface, 1 0- 6 ⁇ 1 0 3 mg / cm 2, preferably 1 0- 4 ⁇ 1 0 2 mg / cm 2, more preferably 1 0- Used to be 3 to 1 Om gZ cm 2 .
- the initiator 4-hydroxymethyltinolebenzaldehyde dimethyl acetal 1.0 ramol (1.822 mol / l in THF solution, 0.55 ml) was mixed with the solvent tetrahydrofuran (THF) 25
- THF solvent tetrahydrofuran
- the mixture was added to the mixture with a micro syringe, and K-naphthalene l.Ommol (0.328 mol / 1-THF solution, 3.05 ml) was added, followed by metallization for 10 minutes.
- 140 mmol (6.9 ml) of ethylene oxide was added, and the mixture was stirred under water cooling for 2 days to perform anion ring-opening polymerization.
- the obtained polymer was monomodal and had a number average molecular weight of 6,050. . Comparison of the measured and calculated values of these peaks showed that this polymer had an ethylene oxide skeleton in the main chain, and a hetero-telechelic polyethylene oxide having an acetal group at the ⁇ -terminal and a hydroxyl group at the ⁇ -terminal. Was confirmed.
- NMR proto nuclear magnetic resonance
- the obtained polymer was monomodal by gel permeation chromatography. Its number average molecular weight was 6,056, which was almost the same as the theoretical molecular weight of 6,054. Similarly, in the measurement of MALDI-TOF-MS, the obtained polymer was monomodal and had a number average molecular weight of 6,023. Further, as a result of comparing the measured value and the calculated value of these peaks, it was confirmed that this polymer was benzaldehyde-PEG-0H in which the acetal group at the high end was deprotected.
- the latex solution 25mL and water 125mL and mixed 300mL flask, FeCl 3 After adjusting the pH with hydrochloric acid to 1.7 was added (0. 405 g) and FeS0 4 (0. 25g), with vigorous stirring ammonia Adjust the pH to 9 with water.
- the obtained polycolloid latates were easily attracted to the magnet, and it was confirmed that ferrite was formed on the surface of the latex.
- the surface of the gold chip was modified with PEG (preparation of a mixed brush).
- PEG-modified gold chip was immersed in 0.1 mol / L hydrochloric acid, and gently shaken at room temperature for 3 hours to convert the acetal group at the PEG end into an aldehyde group.
- the gold chip was immersed in biocytin monohydrazide (EZ-Link TM; PIERCE) dissolved in lOOmM sodium phosphate buffer (pH 5.5, 1M NaCl) to a concentration of lmg / mL. After shaking for 3 hours, the biotin was introduced to the surface of the gold chip.
- biocytin monohydrazide EZ-Link TM; PIERCE
- the ozone-cleaned gold substrate (manufactured by Nippon Laser Electronics) was immersed in ImM 4,4'-dithiodibutyric acid (solvent; ethanol) for at least 12 hours in a Petri dish at room temperature, and then washed twice with ethanol.
- the obtained PEG-modified gold colloid particles had good re-dispersibility after centrifugal purification, and were found to be stable even in 10 mM sodium phosphate buffer (pH 7.4, 0.15 M NaCl). It was confirmed by the spectrum measurement.
- acetal-PEG-PAMA 4500/3200
- Streptavidin-supported PEGylated gold colloid was prepared in the same manner as in Example 2 except that BSA was used instead of streptavidin of Example 2.
- the dispersion stability of the obtained BSA-supported PEGylated gold colloid was extremely high as in Example 2.
- Streptavidin-loaded PEGylated gold colloid was prepared in exactly the same manner as in Example 3 except that BSA was used in place of streptavidin of Example 3.
- the dispersion stability of the obtained BSA-supported PEGylated gold colloid was extremely high as in Example 2.
- the spr signal was small even for streptavidin-supported PEGylated gold colloid having a PEG chain of 10,000. But PEG 5,000 In addition, gold colloid treated with PEG / PAMA (4500/3200) produced an extremely high signal, confirming that streptavidin supported on gold colloid efficiently interacted with biotin on the surface of the spr sensor. Was.
- Anti-biotin loading in exactly the same manner as in Example 2 except that anti-biotin antibody and acetal-PEG / PAMA (5660/2780) were used instead of streptavidin and acetal-PEG / PAMA (4500/3200) PEGylated gold colloid was prepared and its dispersion stability was confirmed.
- PEGylated gold colloid carrying anti-biotin was prepared in the same manner as in Example 3 except that anti-biotin antibody was used instead of streptavidin.
- Example 7 Confirmation of Molecular Recognition of Anti-Biotin Antibody-Supported PEGylated Gold Colloid
- the molecular recognition ability of the dispersion-stabilized anti-biotin antibody-supported PEGylated gold colloid thus obtained was determined in the same manner as in Example 4. The operation was confirmed with spr (BIAC0RE1000).
- Figure 4 shows the results of spr.
- ACE-PEG-SH IOOOO
- the zeta potential of the untreated latex shows a negative value of -40 mV, whereas the block-coated one has almost completely shielded the surface potential, and it was confirmed that the uncoated latex was coated neatly. Was confirmed.
- the nonspecific adsorption performance of the protein to the acetal-PEG / PAMA coated magnetic latex thus prepared was evaluated.
- the 17.8 g FITC-BSA solution dissolved in 2 mL of the phosphate buffer solution was mixed.
- the particles were separated using a magnet, and the amount of FITC-BSA was calculated by measuring the fluorescence intensity of the supernatant at an emission wavelength of 520 nm at an excitation wavelength of 490 nm using a fluorescence spectrophotometer.
- Figure 6 shows the amount of FITC-BSA adsorbed on the particle surface versus the number of washings. Coat the block polymer Although no protein was peeled off by washing without particles, it was confirmed that the coated particles were almost completely removed by washing four times, and that non-specific adsorption could be suppressed.
- Example 8 Surface treatment was performed in exactly the same manner as in Example 8, except that the magnetic particles of JSR were used instead of the magnetic latex prepared in Reference Example 4.
- the dispersibility was dramatically improved as compared with the untreated latex.
- the untreated particles have a high sedimentation velocity, so the zeta potential cannot be measured.However, the zeta positions of the polymer-treated particles are -4 mV and + lmV, respectively, confirming that the surface is shielded. .
- Example 10 Method of Carrying Out Antibodies on Magnetic Particles Having Tosyl Groups (Dynabeads) and then Surface-Blocking with Acetal-PEG / Polyamine
- BSA ITB BSA 15mg dissolved in 2mL of 10mMTB (pH 8.12)
- FIG. 7 shows the results of evaluation of the detection ability of the antigen bound to dynabeads
- FIG. 8 shows the S / N ratio of each system.
- the emission intensity derived from the reaction between the enzyme (ALP) and the substrate (4-MUP) is “PEG-b_PAMA + lwt. /.
- PEHA-Phenyl-PEG-OH 0, 0.5, 1.0, 2.0, 3.0, 4.0 wt% and JSR magnetic particle solution (anti-AFP rabbit antibody carrying, 7ug / mg beads ( 0.35ug / test), carboxylic acid surface particles, and magnetic particles: 10mg / ml) are mixed in a one-to-one ratio, stirred with a port tus, and rotated at 4 ° C overnight to perform a surface treatment.
- 1% BSA PBS Dilute 10-fold with.
- 1% BSA / PBS 50 L and 50 ⁇ L of magnetic particle solution were added to each of 50% NRS (normal normal heron serum) / PBS, 1% BS A / PBS, NHS (normal human serum), and 1 hour after vortex React by shaking. Separated with a magnet. After washing twice with TBST (Tris buffer 0.15M NaCl containing TWEEN20; 0.05%), 50uL of 3000-fold dilution of anti-AFP-monoclonal antibody ( ⁇ stock solution (Wako 016-14511) 3000 times) ) And shake for 1 hour. Separately wash with a magnet (same as above).
- anti-mouse alkaline phosphatase IgG antibody stock solution of anti-mouse (goat)-alkaline phosphatase conjugate (sigma A3688) 5000 times; 1% BSA / PBS) and shake for 1 hour. .
- Example 12 Before adding the primary antibody of Example 11, AFP (o! Phytoprotein; Aspen Bio Inc. 105S (Lot. 990628V1SS) 500K IU / mg) was added to 50% NRS, The measurement was carried out in the same manner as described above, except that the mixture was diluted to 5, 100, 500, and 100,000 I / ml with 1% BSA PBS and NHS and added to each magnetic particle. As a result, it was confirmed that AFP detection was performed even when blocking was performed with PEHA-Ph-PEG-OH.
- Antigen solution antigen (Goat-IgG) dissolved in TB and used
- Antibody solution Antibody (Algo Rephosphatase Conjugate Anti Goat-IgG) diluted 30,000-fold with TBS for use
- Fig. 11 shows the amount of antibody detected
- Fig. 12 shows the amount of non-specific adsorption. Even when blocking was performed with PEHA_Ph-PEG-0H, the detection sensitivity did not decrease, and it was confirmed that nonspecific adsorption was largely suppressed.
- Figure 13 shows the S / N ratio. It is more effective than albumin blocking.
- Detection was performed using fluorescent-labeled streptavidin, using an anti-BSA antibody (Egret) as the primary antibody and a biotin-labeled anti-Egret antibody (donkey) as the secondary antibody.
- the results are shown in FIG. From the figure, it can be seen that the polymer used in the present invention has a better nonspecific adsorption suppressing effect than the conventionally used gelatin.
- a PEG graft chain was constructed on the glass substrate surface.
- Treatment method 1 (Adsorption under acidic conditions in a hot water bath (activation of molecular motion)) ⁇ ⁇ ⁇ 7.5 mM HC to the examiner to match the ionic strength at the time of potential measurement and to promote PAMA protonation 1
- Prepare 15 ml of an aqueous solution (pH 2.1), adjust 10 ml of 0.5 wt% Acetal-PEG-b-PAMA solution in a hot water bath at 50 ° C and 80 ° C, and adjust the temperature.
- the glass surface treatment was performed by immersing the glass and keeping it for 1 hour while maintaining the temperature.
- Treatment method 1 (adsorbed in a high salt concentration aqueous solution at room temperature and under acidic conditions) Prepare 1 ml of 7.5 mM HC 1 aqueous solution ( ⁇ ⁇ 2.1) containing 1 MNaCl, and prepare a concentration of 1 mg / m 1 Was used to dissolve Acetal-PEG-b-PAMA.
- Main solution Immerse the glass in the solution, leave it at room temperature for 30 minutes, wash it with a 7.5 mM HC1 aqueous solution containing 1 M NaC1 (pH 2.1), and leave it again in the above PEG aqueous solution for 30 minutes. For surface treatment.
- ⁇ Electric potential measurement Measurement was performed by a laser Doppler method using an Otsuka Electronics L- ⁇ ⁇ -600 type device. The dependence of ⁇ potential on ⁇ ⁇ ⁇ ⁇ starts from the acidic side, and is raised to ⁇ ⁇ 3, 5, 7, 8 ', 9, and 10.Measurements are performed two to three times for each ⁇ ⁇ , and stable values are obtained. Measured values.
- Fig. 15 shows the ⁇ ⁇ dependence of the ⁇ potential on the unmodified glass and the surface of the PEG-modified glass subjected to adsorption treatment at 25, 50, and 80 ° C.
- an alkaline phosphatase-labeled secondary antibody was used to detect the blocking effect of the block copolymer of the present invention in a detection system for single-protein (AFP).
- AFP single-protein
- An example is shown in comparison with a blocking agent that has been conventionally used.
- serum albumin (BSA) and methoxy-polyethylene glycol / polylactic acid were prepared according to the method described in Example 14.
- Block polymer (PEG-PLA) Were compared for the blocking effect.
- Detection was carried out using an anti-AFP antibody (Egret) as the primary antibody, and an anti-Agher antibody labeled with anti-Agherfish antibody (donkey) as the secondary antibody. Tonitol nitrate tetrazolium (BCI PZNB PT) was used.
- FIG. 17 shows the results.
- the surface treated by the method according to the present invention showed little change in surface potential due to ⁇ ⁇ , was electrically neutral, and had little ionic interaction.
- Example 1 A batch surface treatment method by applying PTS ⁇ ⁇ -g-PEG or a PEG macroblock monomer having a polymerizable bur group to the surface of a mold when preparing polydimethoxysilyl (P PMS).
- PTS PM—g—PEG ⁇ a graft copolymer containing PEG directly on the glass surface when polymerizing the base PDMS.
- Figures 19 and 20 show the results of evaluation of nonspecific adsorption of proteins to the treated surface using fluorescently labeled albumin and IgG, respectively. In all cases, adsorption was significantly reduced by the surface treatment, and the amount of adsorption was large on the untreated silicone surface, while non-specific adsorption was suppressed with good reproducibility on the treated surface.
- the present invention it is possible to provide a substrate surface in which nonspecific adsorption of contaminant proteins and the like present in a sample such as blood and plasma on the surface of a biosensor substrate is significantly suppressed. Therefore, it can be used in the biosensor manufacturing industry or the biosensor industry, for example, in the clinical diagnosis industry.
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DE602004020231T DE602004020231D1 (de) | 2003-07-28 | 2004-07-28 | Oberfläche eines bei nichtspezifischer adsorption inhibierten basismaterials |
EP04771169A EP1650565B1 (en) | 2003-07-28 | 2004-07-28 | Surface of base material being inhibited in non-specific adsorption |
JP2005512122A JP4665762B2 (ja) | 2003-07-28 | 2004-07-28 | 非特異吸着を抑制した基材表面 |
US10/566,159 US8841138B2 (en) | 2003-07-28 | 2004-07-28 | Surface of base material being inhibited in non-specific adsorption |
US14/459,888 US9862992B2 (en) | 2003-07-28 | 2014-08-14 | Surface of substrate onto which non-specific adsorption is restrained |
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US14/459,888 Division US9862992B2 (en) | 2003-07-28 | 2014-08-14 | Surface of substrate onto which non-specific adsorption is restrained |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11211727A (ja) * | 1997-11-03 | 1999-08-06 | Boehringer Mannheim Gmbh | ポリエチレングリコール誘導化生体分子及び不均質検出法におけるその使用 |
JPH11287802A (ja) * | 1998-04-03 | 1999-10-19 | Nippon Kayaku Co Ltd | 表面保護剤 |
WO2001086301A1 (fr) * | 2000-05-11 | 2001-11-15 | Center For Advanced Science And Technology Incubation, Ltd. | Composition polymère pour former la surface d'un biocapteur |
WO2002056020A1 (fr) * | 2001-01-12 | 2002-07-18 | Kazunori Kataoka | Complexes d'un solide et de polymeres utilises dans un dosage biologique |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE467308B (sv) * | 1990-10-22 | 1992-06-29 | Berol Nobel Ab | Fast yta belagd med ett hydrofilt ytterskikt med kovalent bundna biopolymerer, saett att framstaella en saadan yta och ett konjugat daerfoer |
US5919712A (en) * | 1993-05-18 | 1999-07-06 | University Of Utah Research Foundation | Apparatus and methods for multi-analyte homogeneous fluoro-immunoassays |
US6297062B1 (en) * | 1996-03-07 | 2001-10-02 | Bio-Magnetics Ltd. | Separation by magnetic particles |
US6127129A (en) * | 1999-05-04 | 2000-10-03 | Wisconsin Alumni Research Foundation | Process to create biomolecule and/or cellular arrays on metal surfaces and product produced thereby |
US20030040129A1 (en) * | 2001-08-20 | 2003-02-27 | Shah Haresh P. | Binding assays using magnetically immobilized arrays |
AU2003221336A1 (en) * | 2002-03-11 | 2003-09-22 | Toudai Tlo, Ltd. | Brush-like structured surface of poly(ethylene oxide) having elevated density |
US8841138B2 (en) * | 2003-07-28 | 2014-09-23 | Jsr Corporation | Surface of base material being inhibited in non-specific adsorption |
-
2004
- 2004-07-28 US US10/566,159 patent/US8841138B2/en active Active
- 2004-07-28 WO PCT/JP2004/011123 patent/WO2005010529A1/ja active Application Filing
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- 2004-07-28 ES ES04771169T patent/ES2322061T3/es active Active
- 2004-07-28 AT AT04771169T patent/ATE426809T1/de not_active IP Right Cessation
-
2014
- 2014-08-14 US US14/459,888 patent/US9862992B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11211727A (ja) * | 1997-11-03 | 1999-08-06 | Boehringer Mannheim Gmbh | ポリエチレングリコール誘導化生体分子及び不均質検出法におけるその使用 |
JPH11287802A (ja) * | 1998-04-03 | 1999-10-19 | Nippon Kayaku Co Ltd | 表面保護剤 |
WO2001086301A1 (fr) * | 2000-05-11 | 2001-11-15 | Center For Advanced Science And Technology Incubation, Ltd. | Composition polymère pour former la surface d'un biocapteur |
WO2002056020A1 (fr) * | 2001-01-12 | 2002-07-18 | Kazunori Kataoka | Complexes d'un solide et de polymeres utilises dans un dosage biologique |
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Also Published As
Publication number | Publication date |
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ATE426809T1 (de) | 2009-04-15 |
US8841138B2 (en) | 2014-09-23 |
JP4665762B2 (ja) | 2011-04-06 |
EP1650565B1 (en) | 2009-03-25 |
US20060240438A1 (en) | 2006-10-26 |
US9862992B2 (en) | 2018-01-09 |
JPWO2005010529A1 (ja) | 2006-09-14 |
ES2322061T3 (es) | 2009-06-16 |
EP1650565A1 (en) | 2006-04-26 |
EP1650565A4 (en) | 2006-11-02 |
US20140378346A1 (en) | 2014-12-25 |
DE602004020231D1 (de) | 2009-05-07 |
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