Enzyme immobilization in a fluorine resin membrane

Details Enzyme immobilization in a fluorine resin membrane Enzyme immobilization in a fluorine resin membrane

1983-10-11

1986-10-28

Naff, David M.

Chemistry: molecular biology and microbiology

Carrier-bound or immobilized enzyme or microbial cell;...

Enzyme or microbial cell is immobilized on or in an organic...

435180, 435177, 435174, C12N 1104, C12N 1108, C12N 1102, C12N 1100

Patent

active

046198970

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.

REFERENCES:
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patent: 4240889 (1980-12-01), Yoda et al.
patent: 4251631 (1981-02-01), Simon et al.
patent: 4317879 (1982-03-01), Busby et al.
patent: 4323650 (1982-04-01), Rosevear
patent: 4464468 (1984-08-01), Avrameas et al.
Mascini, M. and Guilbault, G. G., "Urease Coupled Ammonia Electrode for Urea Determination in Blood Serum," Anal. Chem., vol. 49, No. 6, May 1977, pp. 795-798.

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