Rapid radioimmunoassay product and method of making and using same
US4399229A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 1980 |
| Grant date | Aug 16, 1983 |
| Priority date | — |
| Expiry date | Apr 14, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S436/828
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A stabilized radioimmunoassay product consisting of an antibody protein-bound to the cell wall of a selected bacterium whereby the antibody is irreversibly bound to the protein and remains specific for the antigen against which it was developed. The radioimmunoassay product is also characterized by the fact that the resultant complete product includes a phase of serum protein treatment to isolate the protein sites or other sites of nonspecific reactivity with the labelled antigen such that the non-specific binding of labelled antigen is significantly reduced. Also within the contemplation of the invention is the method of manufacturing the radioimmunoassay product which includes the initial phase of protein binding of the antibody to the selected bacterium and the subsequent serum treatment to isolate previously unutilized protein sites such that when said sites are subsequently exposed to labelled antigen it will be rejected. Further within the contemplation of the invention is the method of utilizing the aforesaid product to totally eliminate the necessity for the customary incubation stages necessitated by prior art radioimmunoassay techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.