Enzyme immobilization in a fluorine resin membrane
US4619897A · kind A · utility
39Cited by
6References
9Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Oct 11, 1983 |
| Grant date | Oct 28, 1986 |
| Priority date | — |
| Expiry date | Oct 11, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12Q1/003
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A fluorine resin membrane is made hydrophilic to a prescribed depth in the direction of thickness thereof to produce an asymmetrical membrane having a hydrophilic portion and a hydrophobic portion. An enzyme is immobilized in the hydrophilic portion of the membrane to obtain a membrane having a function of enzymatic reaction and a function of selective gas permeation. The hydrophilic portion is formed by causing a perfluoroalkyl surface active agent to penetrate the prescribed depth that is to be hydrophilic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.