Biodegradable polymeric nanospheres formed by temperature-induced phase transition in a mixture of poly(lactide-co-glycolide) and poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) triblock copolymer

被引:35
作者
Lee, KE [1 ]
Kim, BK [1 ]
Yuk, SH [1 ]
机构
[1] Hannam Univ, Dept Polymer Sci & Engn, Daedeog Ku, Taejon 306791, South Korea
关键词
D O I
10.1021/bm020066h
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The mixture of poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) triblock copolymer (F-127) and PLGA (poly(lactide-co-gycolide)) forms a liquid state above their phase transition temperatures, and the phase-separated state is induced by decreasing the temperature below the phase transition temperature. On the basis of the temperature-induced phase transition behavior in the mixture of F-127 and PLGA, a novel method for the preparation of drug-loaded PLGA nanospheres was designed and characterized by measuring the loading amount, the encapsulation efficiency, and the drug release pattern. Paclitaxel, used as a potent anticancer drug, was selected as a model drug.
引用
收藏
页码:1115 / 1119
页数:5
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