载皂苷聚合物微球制备及其性能
Chemical Engineering（2023）
Abstract
以皂苷提取物为模型药物,PCL-PEG-PCL(聚己内酯-聚乙二醇-聚己内酯共聚物)为网络框架,采用溶剂挥发法制备载皂苷PCL-PEG-PCL微球,通过FT-IR(红外光谱)和SEM(扫描电镜)表征微球的组成和结构,并评价其体外释药性和抗氧化活性.FT-IR结果表明微球成功包载皂苷提取物;SEM结果表明微球为类球形,表面有微孔;体外释药实验结果表明微球对皂苷具有缓释性能,释药机理符合Higuchi模型;微球对ABTS+·、DPPH·、·OH清除能力随质量浓度增大而增强.微球体外释药结果为微囊释药机理提供理论基础,微球体外抗氧化活性结果有助于岗梅总皂苷抗氧化剂的开发利用.
MoreKey words
PCL-PEG-PCL,saponin extract,microspheres,drug release,antioxidant activity
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