WO2007089564A3 - Microchannel magneto-immunoassay - Google Patents

Microchannel magneto-immunoassay Download PDF

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Publication number
WO2007089564A3
WO2007089564A3 PCT/US2007/002138 US2007002138W WO2007089564A3 WO 2007089564 A3 WO2007089564 A3 WO 2007089564A3 US 2007002138 W US2007002138 W US 2007002138W WO 2007089564 A3 WO2007089564 A3 WO 2007089564A3
Authority
WO
WIPO (PCT)
Prior art keywords
particles
electromagnets
immunoassay
microchannel
luminescence
Prior art date
Application number
PCT/US2007/002138
Other languages
French (fr)
Other versions
WO2007089564A2 (en
Inventor
Dosi Dosev
Vishal Talwar
Mikaela Nichkova
Ian Kennedy
Original Assignee
Univ California
Dosi Dosev
Vishal Talwar
Mikaela Nichkova
Ian Kennedy
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Univ California, Dosi Dosev, Vishal Talwar, Mikaela Nichkova, Ian Kennedy filed Critical Univ California
Priority to US12/162,322 priority Critical patent/US20090227044A1/en
Publication of WO2007089564A2 publication Critical patent/WO2007089564A2/en
Publication of WO2007089564A3 publication Critical patent/WO2007089564A3/en

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
    • G01N33/54313—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals the carrier being characterised by its particulate form
    • G01N33/54326—Magnetic particles
    • G01N33/54333—Modification of conditions of immunological binding reaction, e.g. use of more than one type of particle, use of chemical agents to improve binding, choice of incubation time or application of magnetic field during binding reaction

Abstract

A single microchannel is combined with external electromagnets for performing a fast immunoassay within a very small volume. Magnetic/luminescent nanoparticles serve as carriers for the antibodies and as internal luminescent standard. The immunoreaction is accelerated by applying alternating magnetic field by means of the external electromagnets, thus inducing oscillation of the particles and achieving better diffusion during the incubation steps. Using the electromagnets the particles are held into the channel for washing and luminescence detection steps. The luminescence of the particles serves as an internal calibration for the assay and helps to avoid experimental error from particle loss.
PCT/US2007/002138 2006-01-26 2007-01-26 Microchannel magneto-immunoassay WO2007089564A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/162,322 US20090227044A1 (en) 2006-01-26 2007-01-26 Microchannel Magneto-Immunoassay

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US76262006P 2006-01-26 2006-01-26
US60/762,620 2006-01-26

Publications (2)

Publication Number Publication Date
WO2007089564A2 WO2007089564A2 (en) 2007-08-09
WO2007089564A3 true WO2007089564A3 (en) 2007-12-13

Family

ID=38327895

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/002138 WO2007089564A2 (en) 2006-01-26 2007-01-26 Microchannel magneto-immunoassay

Country Status (2)

Country Link
US (1) US20090227044A1 (en)
WO (1) WO2007089564A2 (en)

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Publication number Publication date
US20090227044A1 (en) 2009-09-10
WO2007089564A2 (en) 2007-08-09

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