Dry-type analytical element for immunoassay
US5093081A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jun 21, 1989 |
| Grant date | Mar 3, 1992 |
| Priority date | — |
| Expiry date | Jun 21, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/54386
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A dry-type analytical element for immunoassay having at least one water-permeable layer for measuring a ligand in a sample according to enzyme immunoassay, which comprises, PA0 (A) a water-insoluble macromolecular substrate, and PA0 (B) an antibody, reacting with the ligand in the sample, conjugated with an enzyme capable of acting on the above water-insoluble macromolecular substrate. The above analytical substance further comprises, PA0 (C) a macromolecular substance which is a conjugate of the ligand or its derivative with a macromolecular compound in the above water-permeable layer of the above dry-type analytical element. The invention can conduct a highly sensitive and simple enzyme immunoassay.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.