正交试验优选羧甲基壳聚糖-醋甲唑胺纳米微球的制备方案
Tianjin Pharmacy（2014）
Abstract
目的:制备羧甲基壳聚糖载药纳米微球,醋甲唑胺为模型药物,测量药物的包封率和纳米微球形态.方法:采用乳化交联法,在微乳液的基础上制备载药纳米微球,对可能影响药物包封率的处方因素进行优化设计,筛选出最优配方.结果:羧甲基壳聚糖溶液的浓度对包封率有显著性影响,三聚磷酸钠溶液浓度和醋甲唑胺药量对包封率未见影响.优化方案的载药纳米微球包封率为49.36％,其电镜下为较规整的球型纳米微球,平均粒径386.0 nm.结论:采用乳化交联法,可形成较高包封率的羧甲基壳聚糖-醋甲唑胺纳米微球.
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