DK2773958T3 - Fremgangsmåde til identifikation af en analyt i en biologisk prøve - Google Patents

Fremgangsmåde til identifikation af en analyt i en biologisk prøve Download PDF

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Publication number
DK2773958T3
DK2773958T3 DK12790972.9T DK12790972T DK2773958T3 DK 2773958 T3 DK2773958 T3 DK 2773958T3 DK 12790972 T DK12790972 T DK 12790972T DK 2773958 T3 DK2773958 T3 DK 2773958T3
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Denmark
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aptamer
analyte
sers
sam
dna
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DK12790972.9T
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English (en)
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Jonathan Michael Blackburn
Michael Evans
Sriram Krishnan
Christa Lynn Brosseau
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Univ Cape Town
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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
    • G01N33/54353—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals with ligand attached to the carrier via a chemical coupling agent
    • 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
    • G01N33/569—Immunoassay; Biospecific binding assay; Materials therefor for microorganisms, e.g. protozoa, bacteria, viruses
    • G01N33/56983—Viruses
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
    • C12N15/09—Recombinant DNA-technology
    • C12N15/11—DNA or RNA fragments; Modified forms thereof; Non-coding nucleic acids having a biological activity
    • C12N15/115—Aptamers, i.e. nucleic acids binding a target molecule specifically and with high affinity without hybridising therewith ; Nucleic acids binding to non-nucleic acids, e.g. aptamers
    • 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
    • G01N33/5438—Electrodes
    • 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
    • G01N33/551—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals the carrier being inorganic
    • G01N33/553—Metal or metal coated
    • 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
    • G01N33/569—Immunoassay; Biospecific binding assay; Materials therefor for microorganisms, e.g. protozoa, bacteria, viruses
    • G01N33/56905—Protozoa
    • 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
    • G01N33/569—Immunoassay; Biospecific binding assay; Materials therefor for microorganisms, e.g. protozoa, bacteria, viruses
    • G01N33/56911—Bacteria
    • G01N33/5695—Mycobacteria
    • 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
    • G01N33/94—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving narcotics or drugs or pharmaceuticals, neurotransmitters or associated receptors
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N2310/00—Structure or type of the nucleic acid
    • C12N2310/10—Type of nucleic acid
    • C12N2310/16—Aptamers
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N2310/00—Structure or type of the nucleic acid
    • C12N2310/30—Chemical structure
    • C12N2310/35—Nature of the modification
    • C12N2310/351—Conjugate
    • C12N2310/3517—Marker; Tag
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N2320/00—Applications; Uses
    • C12N2320/10—Applications; Uses in screening processes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2610/00—Assays involving self-assembled monolayers [SAMs]

Claims (8)

1. Fremgangsmåde til identifikation af et analytmolekyle i en biologisk prøve, hvilken fremgangsmåde omfatter trinnene: opfangning af analytmolekylet på en metaloverflade, hvortil der er bundet et selvmonteret monolag (SAM) af amfifile molekyler, der er kovalent coatet med et lag af oligoethylenglycolmolekyler, idet analytmolekylet er opfanget ved hjælp af en analytmolekylspecifik aptamer, der er bundet direkte til de amfifile molekyler af SAM eller bundet direkte til metaloverfladen og omgivet af SAM, hvilket resulterer i et aptamer-analytmolekyle-kompleks på metaloverfladen, for hvilket et reproducerbart og unikt SERS-spektrum kan måles, måling af SERS-signalintensiteten og det specifikke SERS-spektrum af det resulterende aptamer-analytmolekyle-kompleks og identifikation af det opfangede analytmolekyle ved at sammenligne det målte SERS-spektrum af aptamer-analytmolekyle-komplekset med en database med reference-SERS-spektre for at verificere identiteten af det opfangede analytmolekyle.
2. Fremgangsmåde ifølge krav 1, som yderligere omfatter et trin med at sammenligne den målte SERS-signalintensitet med en standardkurve for at kvantificere hyppigheden af den opfangede analyt.
3. Fremgangsmåde ifølge et hvilket som helst af kravene 1 eller 2, hvor verifikation af identiteten af det opfangede analytmolekyle skelner mellem sande og falske positive resultater i kvantitative analytassays på komplekse biologiske prøver.
4. Fremgangsmåde ifølge et hvilket som helst af kravene 1 til 3, hvor aptameren er en DNA-aptamer.
5. Fremgangsmåde ifølge et hvilket som helst af kravene 1 til 4, hvor aptameren er bundet direkte til de amfifile molekyler af SAM.
6. Fremgangsmåde ifølge et hvilket som helst af kravene 1 til 4, hvor aptameren er bundet direkte til metaloverfladen og omgivet af et selvmonteret monolag (SAM).
7. Fremgangsmåde ifølge et hvilket som helst af kravene 1 til 6, hvor oligoethylengly-colmolekylerne har eksponerede terminaler og er derivatiseret på terminalerne af aptameren.
8. Fremgangsmåde ifølge et hvilket som helst af kravene 1 til 7 til diagnosticering eller kvantificering af en infektion, sygdom eller medicinsk tilstand i et individ, hvorfra prøven er blevet taget, eller til overvågning af et individ under anæstesi.
DK12790972.9T 2011-11-02 2012-11-02 Fremgangsmåde til identifikation af en analyt i en biologisk prøve DK2773958T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA201108016 2011-11-02
PCT/IB2012/056108 WO2013065016A1 (en) 2011-11-02 2012-11-02 A method of detecting and/or quantifying an analyte in a biological sample

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DK2773958T3 true DK2773958T3 (da) 2018-03-12

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US (1) US9518986B2 (da)
EP (1) EP2773958B1 (da)
CN (1) CN104380105B (da)
BR (1) BR112014010696A2 (da)
DK (1) DK2773958T3 (da)
IN (1) IN2014KN01168A (da)
WO (1) WO2013065016A1 (da)
ZA (1) ZA201403386B (da)

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BR112014010696A2 (pt) 2017-04-25
WO2013065016A1 (en) 2013-05-10
IN2014KN01168A (da) 2015-10-16
US9518986B2 (en) 2016-12-13
EP2773958B1 (en) 2017-11-29
CN104380105B (zh) 2017-04-12
CN104380105A (zh) 2015-02-25
EP2773958A1 (en) 2014-09-10
ZA201403386B (en) 2016-02-24
US20140302492A1 (en) 2014-10-09

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