The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 07, 1998
Filed:
Dec. 30, 1996
Jinn-nan Lin, Cerritos, CA (US);
Christopher J Wilson, Redondo Beach, CA (US);
Diagnostic Products Corporation, Los Angeles, CA (US);
Abstract
A method and apparatus for immunoassays utilizes an improved collection technique of fluorescence induced emissions at the solid phase/liquid phase interface from surface plasmon resonance sensing devices. In a preferred embodiment, a solid phase substrate is coated with a thin film of a conducting material on which a first specific binding partner is directly or indirectly immobilized. The coated solid phase substrate is incubated with a liquid component comprised of a biological sample containing a specific ligand or analyte and a fluorescent labeled second specific binding partner in the case of immunometric assays, or a fluorescent labeled ligand or analog thereof in the case of competitive assays. The improvements in the method of light collection for the induced emission of surface plasmon resonance based sensing devices which involve