Chitosan in which the N-acetylglucosamine moiety is a structural feature found in glucosaminoglycans and gelatin is the partially denatured derivative of collagen.

• 壳聚糖的N乙酰基葡萄糖胺组成成分为糖胺聚的结构特征,而明胶则为胶原的部分变性衍生物,由其开发的生物材料呈现和前体相当的生物活性。