Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1988-01-27
1991-05-21
Rosenberger, Richard A.
Facsimile and static presentation processing
Facsimile
Recording apparatus
G01N 2149
Patent
active
050170090
ABSTRACT:
A new immunoassay system is provided for the detection of ligands or ligand binding partners in solution in a heterogeneous format. The invention relies upon the detection of back scattered light from an evanescent wave disturbed by the presence of a colloidal gold label brought to the interface by an immunological reaction. The evanescent wave existing at the interface in turn is the result of a totally internally reflected incident light wave. Placement of the detector at a back angle above the critical angle insures a superior signal-to-noise ratio.
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Dondero Richard S.
Greenwood David L.
Hansen William P.
Hovorka George B.
Meyer Raymond E.
Matthews Gale F.
Ortho Diagnostic Systems Inc.
Rosenberger Richard A.
Stark Michael
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