Dry reagent strip configuration, composition and method for multiple analyte determination
US7476548B2 · kind B2 · utility
9Cited by
5References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2004 |
| Grant date | Jan 13, 2009 |
| Priority date | — |
| Expiry date | Oct 4, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S436/81
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An assay device, analytical instrument and assay method for determining the presence or amount of an analyte in a fluid is disclosed. The device is a one-step lateral flow dry reagent immunoassay with one, two or more zones along a transverse axis of the device, each zone can contain or be preceded by diffusively or non-diffusively bound reagents. The invention measures an indicator in one or two test zones for each analyte to determine its presence or concentration. The signal reagent (indicator) may be a particle such as a colored latex or colloidal gold. The assay quantitation may be read by an instrument.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.