Detection of antibodies to bacterial antigens by flourescence polarization
US5976820A · kind A · utility
14Cited by
5References
2Claims
0Family size
Inventors
Key dates
| Filing date | Aug 28, 1995 |
| Grant date | Nov 2, 1999 |
| Priority date | — |
| Expiry date | Aug 28, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a homogeneous immunoassay, fluorophore-conjugated lipopolysaccharide derived bacterial antigens are reacted with antibodies specific for the antigens. Quantitative detection of the formation of an immune complex is obtained by measuring the change in fluorescence polarization after complex formation. The reaction occurs quickly (less than two minutes to equilibrium), and involves the addition of only one reagent to a diluted serum specimen. The absence of a solid phase separation step eliminates false positive results and increases throughput.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.