Assay reagents and devices
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United States of America Patent
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Oct 17, 2000
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N/A
app pub date -
Sep 23, 1997
filing date -
Sep 27, 1996
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Abstract
A reagent useful in immunoassays, comprising a direct particulate level co-sensitized with a specific binding agent having specificity for an analyte or analyte analog and with a non-specific protein which can participate in a control reaction with another specific binding agent which does not bind to the first specific binding agent nor participate in the formation of a complex by means of which detection of the analyte or analyte analog is accomplished. Preferably the first specific binding agent is an antibody raised in a first species and the non-specific protein is an immunoglobulin from another species. Optionally, the reagent additionally comprises a second population of the direct particulate label sensitized solely with the non-specific protein.
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