Fiber optic evanscent wave sensor for immunoassay
US5494798A · kind A · utility
131Cited by
9References
18Claims
0Family size
Inventors
Key dates
| Filing date | Dec 9, 1993 |
| Grant date | Feb 27, 1996 |
| Priority date | — |
| Expiry date | Dec 9, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12Q1/6825
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A coupled pair of fiber optic fibers are used an immunoassay device. The fibers are first coupled and then drawn down to a single mode diameter. The coupler senses output ratio change due to chemical, biochemical, bioaffinity, immunogenic-type interactions and other molecular activity occuring within the evanescent field. The fusion joint of the coupler is coated with a first immunoassay component, and then surrounded with a second immunoassay component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.