화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2017년 봄 (05/10 ~ 05/12, 광주 김대중컨벤센센터(Kimdaejung Convention Center))
권호 21권 1호
발표분야 콜로이드계면화학
제목 Micelle-To-Vesicle Incorporation of Cholesterol-terminated Poly(acrylic acid) for the Labile Surface-Modification of Lipid Vesicles without Cargo-leakages
초록 An amphiphilic cholesterol-terminated poly[acrylic acid] (Chol-PAA) that can be self-aggregated into nanoscale micelles in aqueous media has been prepared via nitroxide-mediated radical polymerization for the facile post-formation modification of lipid vesicles.  By varying the amount of Chol-PAA addition, the incorporation of Chol-PAA on the liposome templates was verified with zeta potential while the dynamic light scattering measurements revealed the polymer length of Chol-PAA dictated the hydrodynamic diameter of the resulting polymer-grafted vesicles (PGVs).  The membrane incorporation process of Chol-PAA was monitored through the fluorescence resonance energy transfer (FRET) study, which showed the relatively labile incorporation property of Chol-PAA, compared to the cholesterol-free PAA and the native cholesterol.  These results indicated that Chol-PAA can be exploited for the facile construction of functional polymer-decorated liposomal delivery systems.
저자 신현우, 이상민
소속 가톨릭대
키워드 amphiphilic polymer micelles; lipid vesicles; post-modification
E-Mail