海藻酸钠/聚乳酸半互穿网络水凝胶的制备及溶胀性能研究
Chinese Journal of Spectroscopy Laboratory(2009)
Abstract
为了提高海藻酸钠对疏水性药物的负载量和缓释作用,将海藻酸钠与聚乳酸混合后分散于NaCl/CaCl2的混合溶液中制成半互穿网络水凝胶,对海藻酸钠进行了疏水改性,对该凝胶的溶胀度及pH敏感性进行了测试,进行了药物布洛芬包埋释放实验。考察了不同相对分子质量和用量的聚乳酸对药物释放的影响。结果表明,聚乳酸疏水改性后的海藻酸钠凝胶微球对药物布洛芬的负载量提高,具有较好的缓释作用。
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Key words
Modification of Hydrophobic Property,Controlled Release.,Sodium Algenate
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