Process for specific binding assay for measuring the amount of analyte in a liquid test sample
US6218134A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1996 |
| Grant date | Apr 17, 2001 |
| Priority date | — |
| Expiry date | Apr 26, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S436/807
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A specific binding assay process which is useful for quick qualitative or quantitative measurement and which can be used for various purposes, and a specific binding assay device suitable for the practice of the process, PA1 in which a substance to be assayed in a liquid test sample is determined qualitatively or quantitatively by developing the substance in a liquid test sample in a matrix, which comprises the steps of, for example: PA2 allowing the substance to be assayed to reach with a specific binding substance which has specific affinity for the substance to be assayed; PA2 allowing a signal substance generator (a substance which competes with the substance to be assayed for the specific binding substance and which generates a signal) to change its distribution in the matrix in response to the reaction of the above step, and; PA2 detecting the resulting distributional changes at a detection means as changes of signals which are rate-limited by the mass transfer of a signal substance generated from the signal substance generator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.