WO2001013115A2 - Identifikation einer biopolymersequenz auf festkörperoberflächen - Google Patents
Identifikation einer biopolymersequenz auf festkörperoberflächen Download PDFInfo
- Publication number
- WO2001013115A2 WO2001013115A2 PCT/DE2000/002758 DE0002758W WO0113115A2 WO 2001013115 A2 WO2001013115 A2 WO 2001013115A2 DE 0002758 W DE0002758 W DE 0002758W WO 0113115 A2 WO0113115 A2 WO 0113115A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- biopolymer
- change
- substrate
- conductivity
- identifying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- 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
- G01N33/54373—Apparatus specially adapted for solid-phase testing involving physiochemical end-point determination, e.g. wave-guides, FETS, gratings
-
- 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
- C12Q1/6816—Hybridisation assays characterised by the detection means
- C12Q1/6825—Nucleic acid detection involving sensors
-
- 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
- G01N33/536—Immunoassay; Biospecific binding assay; Materials therefor with immune complex formed in liquid phase
- G01N33/542—Immunoassay; Biospecific binding assay; Materials therefor with immune complex formed in liquid phase with steric inhibition or signal modification, e.g. fluorescent quenching
Definitions
- the invention relates to a method and a device for identifying a specific biopolymer sequence which is bound to a solid surface.
- the object of the invention is to provide a new technology with which biopolymers fixed to a solid surface can be identified clearly, quickly and sensitively.
- a method for identifying a first biopolymer applied to a first surface of a first substrate is provided, the first biopolymer being brought into contact with an affine second biopolymer located on a surface of a second substrate, and wherein the identification of the The first biopolymer is carried out by evaluating the change in impedance or conductivity caused by affinity-related adhesion.
- a biopolymer is understood to mean in particular a polymer formed from nucleotides or amino acids, e.g. DNA, RNA, PNA, PTO, peptide, protein and the like. The like.
- An affine biopolymer is understood to mean a biopolymer that can form a bond with a corresponding biopolymer. The bond can be a covalent, ionic or hydrogen bond. Binding caused by steric effects can also be considered.
- the change in impedance or conductivity in the direct current and / or alternating current range can be measured as a function of an impressed alternating voltage or current frequency.
- One of the surfaces can be electrically conductive and the change can be measured over this surface.
- the surfaces can also be separated by an insulator.
- the first and / or second biopolymer can be applied as a layer to the surface, electroactive metal atoms, ions, clusters or complex molecules being introduced therein.
- the change is determined by means of a reference electrode and / or a counter electrode.
- a device for carrying out the method according to the invention a first biopolymer being applied to a surface of a first substrate in such a way that it can be brought into contact with a second biopolymer affixed thereto on a surface of a second substrate, and wherein a device for evaluating a change in the impedance or the conductivity caused by affinity-related adhesion is provided for the identification of the first biopolymer.
- the first biopolymers which are fixed on the surface of the first substrate, are brought into contact with second biopolymers, which have an affinity for them. This results in hybridization.
- the second biopolymers can be fixed on a surface of a second substrate and e.g. are brought into contact with the first biopolymers to be identified by pressing them together. Glass, plastic or metal can be used as the substrate material. The latter can be designed in the form of a film.
- the change in conductivity between the two surfaces can be used for detection. In both embodiments, this applies to both DC and AC conductivity phenomena.
- metal atoms, ions, clusters or complex molecules can also be embedded in the thin films formed from the biopolymers.
- the detection can also be carried out using fluorescence or other optical methods. Conductive clusters can be used to amplify optical signals.
- nucleic acids of a certain sequence are covalently bound to a conductive surface of the first substrate as the first biopolymers to be identified.
- Complementary nucleic acids are bound to a second conductive substrate which is brought into contact with the first by pressing them together.
- the electrical wi resistor This can be proven by conventional electronic methods.
- the electronic measured variables can be amplified by introducing metal atoms, clusters or ions into the layer of the biopolymers to be detected. This can be done both before and after hybridization, e.g. by vapor deposition or electrochemical methods. It is also possible to use complex molecules that e.g. in the case of nucleic acids, attach specifically to single-stranded structures or as intercalators to double-stranded conformations and have electroactive centers.
- the method according to the invention can e.g. in the field of security technology for counterfeit-proof marking and identification of banknotes, chip cards, ID cards, etc. be used.
- the method can also be used for labeling and identification e.g. of food, medicines, etc. be used.
- Oligonucleotides with a length of 21 bases are covalently attached to the surface of a conductive polycarbonate / carbon fiber plastic at the 5 'end.
- the oligonucleotides on the surface are hybridized with complementary probes on a second surface. This is done by bringing the two surfaces into contact. If an alternating voltage of a frequency of 250 Hz is applied between the conductive plastic surface and the second surface and the capacitive component of the alternating current is measured, the hybrid conductivity results in a decrease in the alternating current conductivity by more than 10%.
- the hybridization of the oligonucleotide can thus be demonstrated. Control experiments with non-specific oligonucleotides show no significant change in conductivity.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Immunology (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- Urology & Nephrology (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Hematology (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Zoology (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Cell Biology (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Wood Science & Technology (AREA)
- Biophysics (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Engineering & Computer Science (AREA)
- Genetics & Genomics (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP00962216A EP1203237A2 (de) | 1999-08-16 | 2000-08-12 | Identifikation einer biopolymersequenz auf festkorperoberflachen |
| AU74030/00A AU7403000A (en) | 1999-08-16 | 2000-08-12 | Method and device for identifying a biopolymer sequence on solid surface |
| CA002386518A CA2386518A1 (en) | 1999-08-16 | 2000-08-12 | Method and device for identifying a biopolymer sequence on a solid surface |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19938138.0 | 1999-08-16 | ||
| DE19938138A DE19938138C2 (de) | 1999-08-16 | 1999-08-16 | Verfahren und Vorrichtung zur Identifikation einer Biopolymersequenz auf Festkörperoberflächen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2001013115A2 true WO2001013115A2 (de) | 2001-02-22 |
| WO2001013115A3 WO2001013115A3 (de) | 2001-08-23 |
Family
ID=7918107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2000/002758 Ceased WO2001013115A2 (de) | 1999-08-16 | 2000-08-12 | Identifikation einer biopolymersequenz auf festkörperoberflächen |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1203237A2 (de) |
| AU (1) | AU7403000A (de) |
| CA (1) | CA2386518A1 (de) |
| DE (1) | DE19938138C2 (de) |
| WO (1) | WO2001013115A2 (de) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7452457B2 (en) | 2003-06-20 | 2008-11-18 | Roche Diagnostics Operations, Inc. | System and method for analyte measurement using dose sufficiency electrodes |
| US7556723B2 (en) | 2004-06-18 | 2009-07-07 | Roche Diagnostics Operations, Inc. | Electrode design for biosensor |
| US7569126B2 (en) | 2004-06-18 | 2009-08-04 | Roche Diagnostics Operations, Inc. | System and method for quality assurance of a biosensor test strip |
| US7597793B2 (en) | 2003-06-20 | 2009-10-06 | Roche Operations Ltd. | System and method for analyte measurement employing maximum dosing time delay |
| US7645421B2 (en) | 2003-06-20 | 2010-01-12 | Roche Diagnostics Operations, Inc. | System and method for coding information on a biosensor test strip |
| US7645373B2 (en) | 2003-06-20 | 2010-01-12 | Roche Diagnostic Operations, Inc. | System and method for coding information on a biosensor test strip |
| US7718439B2 (en) | 2003-06-20 | 2010-05-18 | Roche Diagnostics Operations, Inc. | System and method for coding information on a biosensor test strip |
| US8058077B2 (en) | 2003-06-20 | 2011-11-15 | Roche Diagnostics Operations, Inc. | Method for coding information on a biosensor test strip |
| US8206565B2 (en) | 2003-06-20 | 2012-06-26 | Roche Diagnostics Operation, Inc. | System and method for coding information on a biosensor test strip |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10113711A1 (de) * | 2001-03-16 | 2002-09-26 | Lifebits Ag | Verfahren zum Nachweis biochemischer Reaktionen und Messträger zur Durchführung des Verfahrens |
| DE10113550A1 (de) * | 2001-03-20 | 2002-10-02 | Infineon Technologies Ag | Verfahren zum Erfassen von makromolekularen Biopolymeren mittels einer Elektrodenanordnung |
| US8148164B2 (en) | 2003-06-20 | 2012-04-03 | Roche Diagnostics Operations, Inc. | System and method for determining the concentration of an analyte in a sample fluid |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2598227B1 (fr) * | 1986-04-30 | 1989-07-28 | Bio Merieux | Procede de detection et/ou d'identification d'une substance biologique dans un milieu liquide a l'aide de mesures electriques, et dispositif destine a la mise en oeuvre de ce procede |
| US5605798A (en) * | 1993-01-07 | 1997-02-25 | Sequenom, Inc. | DNA diagnostic based on mass spectrometry |
| US5591578A (en) * | 1993-12-10 | 1997-01-07 | California Institute Of Technology | Nucleic acid mediated electron transfer |
| US5567301A (en) * | 1995-03-01 | 1996-10-22 | Illinois Institute Of Technology | Antibody covalently bound film immunobiosensor |
| US5866336A (en) * | 1996-07-16 | 1999-02-02 | Oncor, Inc. | Nucleic acid amplification oligonucleotides with molecular energy transfer labels and methods based thereon |
| GB9622304D0 (en) * | 1996-10-26 | 1996-12-18 | Univ Manchester | Sensor |
| US6306584B1 (en) * | 1997-01-21 | 2001-10-23 | President And Fellows Of Harvard College | Electronic-property probing of biological molecules at surfaces |
| WO1998048275A1 (de) * | 1997-04-22 | 1998-10-29 | Thomas Schalkhammer | Cluster verstärkter optischer sensor |
| AU9220498A (en) * | 1997-09-04 | 1999-03-22 | Bayer Corporation | Oligonucleotide probes bearing quenchable fluorescent labels, and methods of usethereof |
| DK1036202T3 (da) * | 1997-12-05 | 2002-08-12 | Max Planck Gesellschaft | Fremgangsmåde til identifikation af nucleinsyrer ved matriksassisteret laserdesorptions/ionisationsmassespektrometri |
| CA2376532A1 (en) * | 1999-06-10 | 2000-12-21 | Song Shi | Biosensors which utilize charge neutral conjugated polymers |
-
1999
- 1999-08-16 DE DE19938138A patent/DE19938138C2/de not_active Expired - Fee Related
-
2000
- 2000-08-12 WO PCT/DE2000/002758 patent/WO2001013115A2/de not_active Ceased
- 2000-08-12 AU AU74030/00A patent/AU7403000A/en not_active Abandoned
- 2000-08-12 EP EP00962216A patent/EP1203237A2/de not_active Withdrawn
- 2000-08-12 CA CA002386518A patent/CA2386518A1/en not_active Abandoned
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7452457B2 (en) | 2003-06-20 | 2008-11-18 | Roche Diagnostics Operations, Inc. | System and method for analyte measurement using dose sufficiency electrodes |
| US7597793B2 (en) | 2003-06-20 | 2009-10-06 | Roche Operations Ltd. | System and method for analyte measurement employing maximum dosing time delay |
| US7645421B2 (en) | 2003-06-20 | 2010-01-12 | Roche Diagnostics Operations, Inc. | System and method for coding information on a biosensor test strip |
| US7645373B2 (en) | 2003-06-20 | 2010-01-12 | Roche Diagnostic Operations, Inc. | System and method for coding information on a biosensor test strip |
| US7718439B2 (en) | 2003-06-20 | 2010-05-18 | Roche Diagnostics Operations, Inc. | System and method for coding information on a biosensor test strip |
| US8058077B2 (en) | 2003-06-20 | 2011-11-15 | Roche Diagnostics Operations, Inc. | Method for coding information on a biosensor test strip |
| US8206565B2 (en) | 2003-06-20 | 2012-06-26 | Roche Diagnostics Operation, Inc. | System and method for coding information on a biosensor test strip |
| US7556723B2 (en) | 2004-06-18 | 2009-07-07 | Roche Diagnostics Operations, Inc. | Electrode design for biosensor |
| US7569126B2 (en) | 2004-06-18 | 2009-08-04 | Roche Diagnostics Operations, Inc. | System and method for quality assurance of a biosensor test strip |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2386518A1 (en) | 2001-02-22 |
| EP1203237A2 (de) | 2002-05-08 |
| AU7403000A (en) | 2001-03-13 |
| WO2001013115A3 (de) | 2001-08-23 |
| DE19938138C2 (de) | 2003-02-13 |
| DE19938138A1 (de) | 2001-03-01 |
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