Poly(D,L-lactide-ran-ε-caprolactone)-poly(ethylene glycol)-poly(D,L-lactide-ran-ε-caprolactone) as parenteral drug-delivery systems

被引:36
作者
Cho, HJ [1 ]
Chung, DJ [1 ]
An, JH [1 ]
机构
[1] Sungkyunkwan Univ, Dept Polymer Sci & Engn, Ctr Adv Funct Polymers, Suwon 440746, South Korea
基金
新加坡国家研究基金会;
关键词
poly(D; L-lactide-ran-epsilon-caprolactone); poly(ethylene glycol); drug release behavior; parenteral drug-delivery system; tri-block copolymer;
D O I
10.1016/j.biomaterials.2003.09.106
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
P(DLA(chi)-ran-CLY)(n)-b-PEG-b-P(DLA(chi)-ran-CLY)(n)s (P(DLA(chi)-ran-CLY)(m): Poly(D,L-lactide-ran-epsilon-caprolactone), PEG: Poly(ethylene glycol), X: D,L-lactyl unit ratio, Y: epsilon-caproyl unit ratio, m: molecular weight of P(DLA(chi)-ran-CLY)), were investigated as the novel parenteral drug-delivery system. The thermal behavior in the DSC characterization and variable viscosity with temperature suggest their potential usuage as a injectable drug-delivery system. The variation of tri-block structure affects the drug release behavior by changing the morphology and also by changing the interaction between the polymer matrix and the hydrophilic drug. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码:3733 / 3742
页数:10
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