화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2015년 가을 (10/06 ~ 10/08, 대구컨벤션센터(EXCO))
권호 40권 2호
발표분야 의료용 고분자 부문위원회 II
제목 Preparation of Thermo-Sensitive Hydrogels for Drug Delivery
초록 The thermo-sensitive polymers are usually made of amphiphilic block copolymers. Many amphiphilic polymers have been used for the thermo-sensitive hydrogels. In the present study, we synthesized methoxy poly(ethylene glycol)-co-polyester diblock copolymers composed of ε-caprolactone (CL), L-lactide (LA) and ρ-dioxane (DO) monomers. Molecular weight and molar fraction were calculated by 1H-NMR spectra. The phase transitions of hydrogels were observed by viscometer. The solutions of polyesters were applied for injectable drug delivery system. They are mixed with Fluorescein isothiocyanate-labeled bovine serum albumin (BSA-FITC) and bovine-insulin, respectively. Small amounts of LA and DO changes physical properties. The solutions of the copolymers show gelation at around body temperature. Also, we confirmed that sustained release of BSA-FITC and bovine-insulin through the release profiles. Therefore, polyester hydrogels have possibility of injectable sustained drug delivery system.
저자 김문석1, 이해방1, 박지훈1, 권두연1, 현훈2, 박승훈1
소속 1아주대, 2전남대
키워드 thermo-sensitive; Hydrogel; Polyester; Drug delivery
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