摘要
目的采用静电纺丝制备淫羊藿苷纳米纤维膜,并通过自组装技术形成纳米囊泡,改善淫羊藿苷在体内的相容性及吸收性能。方法通过溶解度实验筛选合适溶剂,以静电纺丝技术制备淫羊藿苷纳米纤维膜,采用扫描电镜对纤维膜表面形态进行观察,采用X射线晶体衍射(XRD)和差示扫描量热分析(DSC)检测纤维膜中药物的存在状态,通过红外光谱分析药物与纤维材料之间的相互作用。并通过透射电镜观察纳米纤维膜自组装纳米囊泡的性能。结果甲醇与二甲基乙酰胺混合溶剂的溶解性及纤维成型性较好;载药纤维直径分布均匀(400～600 nm)、表面光滑无药物颗粒,药物与聚合物之间通过氢键作用,具有良好的相容性,水中溶解试验发现纳米纤维膜能自组装成纳米囊泡。结论药物以无定形态高度分散于纳米纤维中,电纺制备工艺简单易行;且淫羊藿苷纳米纤维膜能自组装成纳米囊泡。
OBJECTIVE To improve the compatibility and absorption properties of icariin in vivo by preparing electrospun icariin nanofiber and forming self-assembly nano-vesicles. METHODS Solubility test in solvent was performed to screen suitable solvent system. Icariin nanofibers was prepared by electrospinning. SEM and TEM were used to observe fiber membrane surface and self-assembly vehicle morphology respectively. XRD, DSC and IR were applied to characterize the drug-loaded nanofilber. RESULTS Methanol and dimethylacetamide were selected as the solvent mixture for providing good solubility and formation of drug-loaded fiber. The electron scan microscope showed that diameter of fiber was （400-600 nm） and the fiber surface was smooth without drug absorption. The polymers were well compatible with drug. Hydrogen bonds played a key interaction between drug and polymers. Nano-vehicle was self-assembled by dispersing the drug-loaded nanofiler into water. CONCLUSION Preparation of icariin nanofiber membrane by electrospinning was simple and icariin was highly dispersed in nanofiberse in amorphous form. Nanofibers can be self-assembled in water to form nano-vehicles.
出处
《中国现代应用药学》
CAS
CSCD
2012年第6期509-512,共4页
Chinese Journal of Modern Applied Pharmacy
基金
广东食品药品职业学院自然科学研究项目(2008Z010)
作者简介
江永南，男，博士，副教授Tel：（020）28854915E-mail：jynsnake@163．com
