| http://www.w3.org/ns/prov#value | - The semisynthetic polymers may be, for example, chosen from the group consisting of collagen crosslinked with agents such as aldehydes or precursors of thereof, dicarboxylic acids or their halogenides, diamines, derivatives of cellulose, hyaluronic acid, chitin or chitosan, gellan, xanthane, pectin or pectic acid, polyglycans, polymannan, agar, agarose, natural gum and glycosaminoglycans.
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