화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2009년 봄 (04/09 ~ 04/10, 대전컨벤션센터)
권호 34권 1호
발표분야 의료용 고분자 부문위원회
제목 Dextran/PLGA double-layered microspheres for sustained release of doxorubicin
초록 Biodegradable polymer microspheres have been extensively developed as drug carriers that alleviate burst release and control drug release profiles. In this study, we report a simple method to develop double-layered microspheres for controlled and sustained drug release. Microspheres had a double layered structure with dextran layer in the core and PLGA on the surface due to phase separation and encapsulated doxorubicin as a model drug in their core. The molecular weight and concentration of PLGA dominated the structure, in vitro degradation and drug release profiles of microspheres. Drug release profiles from dextran/PLGA double-layered microspheres can becontrolled by manipulating the thickness of shell of the microspheres. We anticipate great potential of dextran/PLGA double-layered microspheres for controlled and sustained drug delivery, given their simple formulation and the control of drug release profiles.
저자 박종학1, 김세호1, 이준희1, 홍현혜1, 육순홍2, 이동원1, 유일수1, 이종문1, 강길선1
소속 1전북대, 2한남대
키워드 double layer; doxorubicin; dextran; microspheres
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