Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving antigen-antibody binding – specific binding protein...
Patent
1986-02-10
1988-09-20
Marantz, Sidney
Chemistry: molecular biology and microbiology
Measuring or testing process involving enzymes or...
Involving antigen-antibody binding, specific binding protein...
435288, 435805, 435810, 436503, 436524, 436529, 436533, 436534, 436539, 436808, 436810, 436824, G01N 5300, G01N 33546, G01N 33551
Patent
active
047725508
ABSTRACT:
A heterogeneous specific binding assay method for determining the amount of a suspected analyte in an aqueous test medium wherein a reaction mixture is formed by combining the test medium with assay reagents including a labeled reagent, an immobilizable component, and a binding substance which causes the immobilizable component to precipitate. Free and bound species of the labeled reagent are formed as a function of the amount of the analyte in the test medium. One of the free and bound species of the labeled reagent is immobilized by binding of the immobilizable component with the binding substance. The immobilized labeled reagent is seperated from labeled reagent which has not been immobilized, and the amount of label in the labeled reagent in one of the separated fractions is determined and related to the amount of analyte in the test medium. The improvement provided is the use of an immobilizable component comprising a water dispersible, aggregatable reagent comprising a binding partner for the one of the free and bound species to be immobilized and a first binding substance which upon binding of a second binding substance forms a precipitated complex of the aggregatable reagent.
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Collins Daniel W.
Marantz Sidney
Miles Inc.
Wagner Richard
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