Binding assay device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5500350
SERIAL NO

08235261

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A device for performing an enzyme-labelled binding assay comprises an absorbent material and a developing solution, wherein the absorbent material is provided with a plurality of reagent zones including an indicator reagent zone, and is capable of transporting the developing solution by capillary action sequentially through each reagent zone, and wherein the indicator reagent zone includes a reagent capable, directly or indirectly, of immobilising an enzyme-labelled reagent in an amount dependent upon the assay result, characterised in that the developing solution includes a signal producing substrate for the enzyme. The substrate moves slower through the absorbent material than the enzyme-labelled reagent or any compound of the enzyme-labelled reagent formed in the assay. The absorbent material is suitably in the form of an elongate strip provided with transverse reagent zones. The device is useful for performing immunoassays including immunometric assays and dual analyte assays.

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Patent Owner(s)

Patent OwnerAddress
ALUSUISSE LONZA GROUP AGFELDEGGSTRASSE 4 CH-8034 ZURICH

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Baker, Terence S Staines, GB2 6 250
Fleming, Ian M Southport, GB2 2 201
Perry, Martin J New Malton, GB2 2 201

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