Optical biosensor matrix
US5738825A · kind A · utility
191Cited by
1References
12Claims
0Family size
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Key dates
| Filing date | May 12, 1997 |
| Grant date | Apr 14, 1998 |
| Priority date | — |
| Expiry date | May 12, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/0446
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A detection cell which is used as a component of an optical biosensor comprises a transparent base plate and a sample plate on the base plate. The sample plate has a matrix of wells extending through it to each to receive a sample. The base plate includes a waveguiding film and a diffraction grating means to in couple an incident light field into the waveguiding film beneath a well to generate a diffracted light field to enable detection of a change in the effective refractive index of the waveguiding film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.