Radial flow assay, delivering member, test kit, and methods
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United States of America Patent
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Aug 20, 1996
Grant Date -
N/A
app pub date -
Jan 4, 1994
filing date -
Jan 4, 1994
priority date (Note) -
Expired
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Abstract
A delivering member for filtering and delivering a sample to a test assay surface includes a prefilter having a sample receiving surface and a surface for delivering a sample to a test assay surface. The prefilter includes a diffusing material on its receiving surface for rapidly and evenly diffusing a sample across the prefilter receiving surface. In this way, a sample may be rapidly and evenly delivered to a test assay surface. A test assay solid phase has a surface including an area carrying an immobilized species and an area free of immobilized species. When a sample is applied to the surface, followed by application of a labeled species, the evenness of distribution of the labeled species is indicative of the evenness of application of the sample. A kit includes a delivering member and an assay surface.
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