H. Hatayama et al., IMMOBILIZATION OF UREASE ON COMPOSITE FIBER BY USING A GEL FORMATION OF CELLULOSE-ACETATE AND TITANIUM ISO-PROPOXIDE, JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 7(1-2), 1996, pp. 13-17
Urease was entrap-immobilized on composite gel fibre oi cellulose acet
ate and TiO2. The immobilization can be easily performed under mild co
nditions. The gel fibre is stable in high ionic solutions and in phosp
hate solutions with a range of pH 6-8.