Heterogenous chemiluminescent specific binding assay
US4380580A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 1979 |
| Grant date | Apr 19, 1983 |
| Priority date | — |
| Expiry date | Jun 21, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S436/818
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A heterogeneous specific binding assay which employs a substance having reactant activity, i.e., a reactant, in a chemiluminescent reaction as a labeling substance in the detection of a ligand in a liquid medium. The method is carried out using reagent means which comprises, as its labeled constituent, a conjugate formed of a specific binding substance coupled to the chemiluminescent reactant. The activity of the conjugated reactant in the chemiluminescent reaction, i.e., the production of light, is utilized as means for monitoring the extent of binding of the labeled constituent in conventional heterogeneous specific binding assay schemes. The presence of a ligand in a liquid medium may be determined following conventional competitive binding manipulative techniques. After the necessary separation of the bound- and free-phases resulting in the specific binding reaction system, the extent of binding of the labeled constituent is determined by contacting either phase with the necessary materials to form the chemiluminescent monitoring reaction and measuring the light produced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.