CA2250242A1 - Quantitative immunochromatographic assays - Google Patents

Quantitative immunochromatographic assays

Info

Publication number
CA2250242A1
CA2250242A1 CA002250242A CA2250242A CA2250242A1 CA 2250242 A1 CA2250242 A1 CA 2250242A1 CA 002250242 A CA002250242 A CA 002250242A CA 2250242 A CA2250242 A CA 2250242A CA 2250242 A1 CA2250242 A1 CA 2250242A1
Authority
CA
Canada
Prior art keywords
coated particles
analyte
application point
antibody
contact region
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.)
Granted
Application number
CA002250242A
Other languages
French (fr)
Other versions
CA2250242C (en
Inventor
Donald Elliott Brooks
Dana Devine
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University of British Columbia
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2250242A1 publication Critical patent/CA2250242A1/en
Application granted granted Critical
Publication of CA2250242C publication Critical patent/CA2250242C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G01N33/54386—Analytical elements
    • G01N33/54387—Immunochromatographic test strips
    • G01N33/54388—Immunochromatographic test strips based on lateral flow
    • 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
    • G01N33/558—Immunoassay; Biospecific binding assay; Materials therefor using diffusion or migration of antigen or antibody

Abstract

Quantitative im-munochromatographic assays for measuring the amount of an analyte, and an apparatus for use in the assays, are disclosed. The assays involve obtaining a fluid sample which contains the analyze; supplying a RAMP.TM. apparatus which includes a membrane having an application point, a detection zone, and a contact region, where the contact region is between the application point and the detection zone, and has antibody-coated particles imbedded within it; contacting the application point with the fluid sample; maintaining the RAMP.TM. apparatus under conditions sufficient to allow fluid to transport analyte by capillary action to the contact region, where the analyte binds to the antibody-coated particles; further maintaining the apparatus under conditions sufficient to allow fluid to transport analyte-bound antibody-coated particles to the detection zone, where they interact with a detection reagent; and detecting the amount of analyte-bound antibody-coated particles which have reacted with the detection reagent. Alternatively, the fluid sample can be contacted with the detection zone of the apparatus, and the antibody-coated particles are mobilized by addition of fluid to the application point. The RAMP.TM. apparatus can additionally include one or more of the following features: a wicking pad; an application pad covering the application point; a contact pad covering the contact region; a separator pad between the membrane and the contact pad; and an internal control.
CA002250242A 1996-03-29 1997-03-27 Quantitative immunochromatographic assays Expired - Fee Related CA2250242C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/625,048 1996-03-29
US08/625,048 US5753517A (en) 1996-03-29 1996-03-29 Quantitative immunochromatographic assays
PCT/US1997/004754 WO1997037222A1 (en) 1996-03-29 1997-03-27 Quantitative immunochromatographic assays

Publications (2)

Publication Number Publication Date
CA2250242A1 true CA2250242A1 (en) 1997-10-09
CA2250242C CA2250242C (en) 2005-07-26

Family

ID=24504361

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002250242A Expired - Fee Related CA2250242C (en) 1996-03-29 1997-03-27 Quantitative immunochromatographic assays

Country Status (7)

Country Link
US (1) US5753517A (en)
EP (1) EP0890103B1 (en)
JP (1) JP3753741B2 (en)
AT (1) ATE226729T1 (en)
CA (1) CA2250242C (en)
DE (1) DE69716589D1 (en)
WO (1) WO1997037222A1 (en)

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Also Published As

Publication number Publication date
JP3753741B2 (en) 2006-03-08
EP0890103B1 (en) 2002-10-23
DE69716589D1 (en) 2002-11-28
WO1997037222A1 (en) 1997-10-09
ATE226729T1 (en) 2002-11-15
JP2001500249A (en) 2001-01-09
US5753517A (en) 1998-05-19
CA2250242C (en) 2005-07-26
EP0890103A1 (en) 1999-01-13

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