Immunoassay analytical elements containing vanadium IV(V.sup.+4)ions
US5516645A · kind A · utility
4Cited by
3References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 1994 |
| Grant date | May 14, 1996 |
| Priority date | — |
| Expiry date | Apr 25, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/97
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A dry immunoassay analytical element, for assaying a ligand, comprising a support bearing: PA1 (a) a labeled ligand zone; PA1 (b) a spreading zone; and PA1 (c) a receptor zone containing a fixed concentration of an immobilized receptor for the ligand and the labeled ligand and the receptor is covalently bonded to polymeric beads having a diameter in the range of 0.1 to 5 .mu.m; PA1 characterized in that the element contains a compound containing a vanadium IV (V.sup.+4) ion and the zones can be in the same or separate layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.