| http://www.w3.org/ns/prov#value | - Therefore, it would be desirable to employ cationic polymers such as chitosan in making biocompatible articles such as membranes and fibers for hemodialysis and blood oxygenators, skin substitute and wound dressing material, etc., which have the advantages of the base material, but avoid the use of covalent surface modification techniques, but offer long-term blood compatibility of covalently-modi
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