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Chitosan is a poly-glucosamine obtained after the de-acetylation of chitin.As a natural polymeric material,chitosan is widely available in nature and can be extracted from the shells of crab ,prawn and other types of crustaceans.It also can be prepared by the method of biological fermentation, is a kind of sustainable development characteristics of biological materials.By dissolving chitosan in an acidic solution and ertruding the solution through spinneret holes,it is possible to obtain bioactive chitosan fibers. It can also prepar carboxymethyl chitosan fiber by carboxymethyl.
Properties and Applications
Chitosan is a natural antibacterial material, this kind of fiber has excellent biocompatibility,biodegradability and wound healing properties.It can be used for the production of medical and hygienic materials with antimicrobial properties. Chitosan wound dressings has the functions of bacteriostatic action, action for stopping pain and promoting healing in the process of wound care.
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