Chitosan fibres membrane

Adsorption Cellulose, chitine (chitosan), nylon, polypropylene fibres, polymer nets and membranes, wood, lignine, ion-exchange resins, polyurethane foam, polyacrylamide (Porous) glass, clay,bentonite, zeolithes, ceramics, meso-porous silica, metal oxides (Fe, Ti, Mg), metal phosphates, mineral powder... 

This is undoubtedly one of the most promising medical applications for chitin and chitosan. The adhesive properties of chitosan, together with its antifungal and hactericidal charactCT, and its pameahOity to oxygen, are very important properties associated with the treatment of wounds and burns. Diffa-ent draivatives of chitin and chitosan have been patented for this purpose in the form of membranes, woven fibres, hydrogels, etc. Some of these formulations have been released on the market, like Beschitin in Japan (based on chitin) or HemCon in USA (based on chitosan). 

Gupta, B.S., Saxena, S., Arora, A., Mohammad, S., 2011. Chitosan-polyethyleue glycol coated cotton membranes for wound dressings. Ind. J. Fibre Text. Res. 36, 272 280. 

Blends of BC and chitosan and/or derivatives thereof have been studied quite intensively under various aspects, including determination of mechanical properties as well as swelling and water retention, development of pharmaceuticals and drug release formulations, design of biodegradable plastics, non-woven fabrics, fibres and membranes, for use in speciality paper manufacture and for applications in biotechnology. 

Chitosan has already been used as a support in several catalytic applications, including some which exploit its chirality 15-19), Finally, and a major benefit, is the ability of chitosan to form films and fibres readily, 13) allowing the coating of reactor walls and the forming of catalyst systems with controlled architecture, e.g. films, membranes, porous beads. Such behaviour relies on the ability of chitosan to dissolve in dilute aqueous acid (via protonation of the amino function) to give solutions from which films can be cast. Chitosan is completely insoluble in virtually all other solvent systems. 

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