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药物缓释载体在维持血药浓度水平,减少给药次数,降低药物毒性,提高药物疗效方面具有重要作用。天然高分子药物缓释载体-壳聚糖,是天然存在的惟一碱性多糖,是一种安全无毒的、可生物降解的天然高分子,不但具有生物相容性,而且具有抗菌、止血、抑制癌细胞转移等作用。壳聚糖缓释载体可以缓释微粒、缓释片剂、缓释膜、缓释凝胶等形态存在。壳聚糖缓释微粒是目前研究较多
Drug sustained-release carrier in the maintenance of plasma concentration levels, reduce the number of administration, reduce drug toxicity, improve the efficacy of the drug has an important role. Natural polymer drug carrier slow release carrier - chitosan, is the only natural polysaccharide found in nature, is a safe non-toxic, biodegradable natural polymer, not only biocompatible, but also has antibacterial, hemostatic, Inhibit cancer metastasis and other effects. Chitosan sustained-release carrier particles can be sustained-release, sustained-release tablets, sustained-release film, sustained release gel and other forms exist. Chitosan sustained-release particles are more studied