Patent ID: 6656744
Filing Date: 2003-12-02
Classification: G01N,Y10S

Abstract:
A test strip suitable for a lateral flow assay, which test strip comprises a sample-receiving zone, a labeling zone and a capture zone,wherein said sample-receiving zone contains a single movably bound first anti-analyte coupled to a first member of a first specific binding pair irrelevant to analyte/anti-analyte interaction, wherein said labeling zone contains a movably bound counter member of said first specific binding pair irrelevant to analyte/anti-analyte interaction, said counter member is coupled to a label, and wherein said capture zone is separated into a gatekeeping zone proximal to said sample-receiving zone that contains a movably bound second anti-analyte coupled to a first member of a second specific binding pair irrelevant to analyte/anti-analyte interaction and a detecting zone distal to said sample-receiving zone that contains an immobilized counter member of said second specific binding pair irrelevant to analyte/anti-analyte interaction.