详细信息

BSA载药微囊的制备、表征及体外释放行为    

Preparation,Characterization and in vitro Release Behaviour of BSA Loaded Microcapsules

文献类型:期刊文献

中文题名:BSA载药微囊的制备、表征及体外释放行为

英文题名:Preparation,Characterization and in vitro Release Behaviour of BSA Loaded Microcapsules

作者:王侃[1];张琰[1];苄卿卿[1];郎美东[1]

机构:[1]华东理工大学材料科学与工程学院,超细材料制备与应用教育部重点实验室,上海200237

年份:2008

卷号:21

期号:4

起止页码:364

中文期刊名:功能高分子学报

外文期刊名:Journal of Functional Polymers

收录:CSTPCD;;北大核心:【北大核心2004】;CSCD:【CSCD2011_2012】;

基金:国家自然科学基金(20374013)

语种:中文

中文关键词:6-(乙酸苄酯)-ε-己内酯;聚乙二醇-b-聚(6-(乙酸苄酯)-ε-己内酯-co-ε-己内酯);复乳法-液中干燥法

外文关键词:benzyl (7-oxooxepan-2-yl) acetate; poly(ethylene glycol)-block-poly(ε-caprolactone-co-benzyl(7-oxooxepan-2-yl) acetate); double emulsion-solvent evaporation

摘要:采用复乳法-液中干燥法制备了一系列含有牛血清蛋白(BSA)的聚乙二醇-b-聚(6-(乙酸苄酯)-ε-己内酯-co-ε-己内酯(PEBCL)微囊。分别研究了聚合物结构以及制备条件对微囊粒径、载药量和包封率的影响,同时研究了载药微囊在pH=7.4的磷酸盐缓冲溶液中的体外释放行为。研究表明:微囊的平均粒径13~30μm,微囊对BSA的载药量和包封率分别最高可以达到14.18%和75.90%,药物的释放行为可控,PEBCL微囊作为蛋白质类药物载体有望在临床上获得应用。
Bovine serum albumin (BSA) loaded poly(ethylene glycol)-block-poly(ε-caprolactone-co-benzyl (7-oxooxepan-2-yl) acetate) (PEBCL) microcapsule was prepared by W/O/W double emulsion-solvent evaporation technique. The structure of the polymer and preparing conditions which influence the microcapsule size, the drug loading and entrapment efficiency were investigated. The mean particle size of microcapsules is in the range of 13-30 μm. The drug loading efficiency and encapsulation efficiency can he achieved as high as 14. 18% and 75. 90%, and the release behavior can be well-controlled. PEBCL microcapsules might have great potential as carriers for protein drugs.

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