Membrane structure coated with low pI protein or carbohydrate and methods of making and use
US4828980A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 1987 |
| Grant date | May 9, 1989 |
| Priority date | — |
| Expiry date | Sep 18, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24998
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A membrane structure useful in filtration and diagnostic tests includes a microporous membrane formed from a biologically inert material, such as a polyamide, and has a coating comprising one or more water-soluble proteins or carbohydrates. None of the proteins and carbohydrates in the coating has a pI greater than about 5. The membrane structure is prepared by contacting the microporous membrane with the appropriate protein or carbohydrate in an amount sufficient to provide a coating over the entire membrane surface without substantially diminishing the porosity of the membrane. The membrane structure is useful in various diagnostic test procedures, such as agglutination assays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.