Absorbance modulated fluorescence detection methods and sensors
US5143853A · kind A · utility
220Cited by
3References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 2, 1989 |
| Grant date | Sep 1, 1992 |
| Priority date | — |
| Expiry date | Feb 2, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/13
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A variety of methods and apparatus for the detection of an analyte of interest in a fluid sample is provided which relies upon the interaction of a fluorophore and a chromophoric light absorbing compound for qualitative and quantitative results. The methods preferably employ fiber optic sensors in combination with fluorophores and/or proto-absorber substances in mobile and immobilized modes of use. The methods and apparatus rely upon the ability of the light absorbing compositions to absorb energy which is transferred either radiatively or non-radiatively by the fluorophore when in an excited state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.