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聚乳酸纳米颗粒的制备与表征
Authors
刘艳辉
徐婧
+3 more
杨婷媛
王连艳
马光辉
Publication date
1 January 2015
Publisher
Abstract
采用改良沉淀法制备了聚乳酸(PLA)纳米颗粒,采用响应面分析法建立数学模型对工艺条件进行优化. 结果表明,影响PLA颗粒制备的主要因素有PLA质量、油相中乙醇含量和油相体积,以平均粒径最小为目标,得到最优工艺条件为:聚乳酸质量76.82 mg,油相中乙醇含量40%(φ),油相体积19.49 mL. 按最优工艺条件所制PLA颗粒的粒径为109.1 nm,多分散系数PDI值为0.084,与预测值偏差较小. PLA纳米颗粒为球形实心颗粒,分散性良好且粒径均一. PLA纳米颗粒能被巨噬细胞摄取,有望作为免疫佐剂
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Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
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Last time updated on 11/04/2021