Adv Drug Deliv Rev. 1998 May 04;31(3):223-246. doi: 10.1016/s0169-409x(97)00120-8.
Advanced drug delivery reviews
Chornet, Dumitriu
PMID: 10837627 DOI: 10.1016/s0169-409x(97)00120-8
The notion of a polyelectrolyte complex is well established for the complexation of two polymers one anionic, the other cationic. Electronic microscopy studies have shown the formation of a fibrilar structure. A method for the preparation of polyionic hydrogels from the complexation of chitosan and xanthan is reported. Electronic microscopy studies have shown the formation of a fibrilar structure. Stable hydrogels have been used to immobilize xylanase, lipase and protease. The immobilized xylanase and lipase activity was significantly higher than that of the free enzyme.