Assay technique and equipment
US4882288A · kind A · utility
Inventors
Key dates
| Filing date | May 13, 1986 |
| Grant date | Nov 21, 1989 |
| Priority date | — |
| Expiry date | May 13, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S436/81
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An assay technique for the qualitative and/or quantitative detection of a chemical, biochemical or biological species in a sample comprising (a) coating at least a predetermined part of a pre-formed surface with a thin film of a material capable of binding the species to be assayed, said thin film incorporating a fluorescent compound whose fluorescent properties show a dependence upon it's molecular environment and said surface being optically active with respect to radiation over a predetermined band of wavelengths (b) contacting the coated surface with the sample and (c) measuring the change in fluorescent properties of said fluorescent compound before and after binding of said species. The preformed surface is preferably a diffraction grating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.