Test strip for lateral flow assays
First Claim
1. A test strip configured for the detection of an analyte in a fluid sample, the strip comprising a first flow matrix and a second flow matrix sequentially arranged to form an interface therebetween, said first flow matrix comprises a detection composition movably bound thereto;
- wherein the detection composition is selected to chemically react with said analyte to yield at least one detectable product;
wherein said at least one detectable product is a precipitate that does not comprise the analyte; and
wherein the first and second flow matrices are selected so as to accumulate said at least one detectable product at said interface when the fluid sample travels from the first flow matrix to the second flow matrix.
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Accused Products
Abstract
A test strip configured for the detection of an analyte in a fluid sample and methods for manufacturing and for using the same. The test strip comprises a first flow matrix and a second flow matrix sequentially arranged to form an interface therebetween. The first flow matrix comprises a detection composition movably bound thereto, wherein the detection composition when exposed to the analyte produces at least one detectable product and wherein the first and second solid matrices are selected so as to accumulate the at least one detectable product at the interface between the two matrices, when the fluid sample travels from the first flow matrix to the second flow matrix.
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Citations
19 Claims
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1. A test strip configured for the detection of an analyte in a fluid sample, the strip comprising a first flow matrix and a second flow matrix sequentially arranged to form an interface therebetween, said first flow matrix comprises a detection composition movably bound thereto;
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wherein the detection composition is selected to chemically react with said analyte to yield at least one detectable product; wherein said at least one detectable product is a precipitate that does not comprise the analyte; and wherein the first and second flow matrices are selected so as to accumulate said at least one detectable product at said interface when the fluid sample travels from the first flow matrix to the second flow matrix. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 18)
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11. A strip for the detection of an enzyme in a fluid sample, the strip comprising a first matrix and a second matrix sequentially arranged on a non-absorbing solid support forming a junction therebetween,
wherein the first matrix is provided with a movably bound enzyme detection composition, which upon exposure to said enzyme produces at least one insoluble detectable product, said detectable product does not comprise said enzyme; - and
wherein said first and second matrices are selected so as to accumulate said at least one detectable product at said junction when the fluid sample travels from the first flow matrix to the second flow matrix. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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19. A test strip configured for the detection of a soluble analyte in a fluid sample, the strip comprising a first flow matrix and a second flow matrix sequentially arranged to form an interface therebetween, said first flow matrix comprises a detection composition movably bound thereto, wherein the detection composition is selected to react with said analyte to yield at least one insoluble detectable product which does not comprise said analyte, and wherein the first and second solid matrices are selected so as to accumulate said at least one detectable product at said interface when the fluid sample travels from the first flow matrix to the second flow matrix.
Specification