阿司匹林载药淀粉微球吸附性能的研究  

Studies on adsorption properties of the cross-linked starch microspheres on aspirin

作　　者：杨黎燕[1] 尤静[1] 

机构地区：[1]西安医学院药学院,陕西西安710021

出　　处：《化工科技》2013年第3期27-29,62,共4页Science & Technology in Chemical Industry

基　　金：陕西省卫生厅科研资助项目(2012D14);西安医学院校级科研计划扶植项目(12FZ04);西安医学院博士启动基金项目(2011DOC05)

摘　　要：以可溶性淀粉为原料,研究了淀粉微球在反相悬浮体系中对阿司匹林的吸附作用。探讨了交联剂用量、引发剂用量、反应时间及搅拌速度对微球药物吸附量的影响,并考察其体外释放情况。结果表明:当交联剂用量为12g/L,引发剂用量为3g/L时,60℃下中速搅拌2.0h,淀粉微球对阿司匹林有较大吸附作用。在酸性条件下,阿司匹林淀粉微球在8h内有较好释放,交联剂用量对释药速率有较大影响。Aspirin Crosslinked Starch Microspheres（Asp-CSMs）were synthesized with soluble starch as material by reversed phrase suspension method.The effects of reaction time,crosslinking agent dosage and initiator dosage on the adsorption quantity,and the stirring speed were discussed.And the release of Asp-CSMs in vitro was investigated.The results showed that the proper synthesis conditions were that：reaction time,crosslinking agent dosage and initiator dosage,and the stirring speed respectively was 2h,12g/L,3g/L,moderate speed.Vitro release of the drug showed that Asp-CSMs had satisfactory releasing within 8hunder acidic condition.The dosage of crosslinking agent had greater effect to drug releasing rate.

关 键 词：交联淀粉微球 阿司匹林 吸附量 体外释放 

分 类 号：O636.12[理学—高分子化学]