کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
597914 1454081 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Curved single-bilayers in the region of the anomalous swelling: Effect of curvature and chain length
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Curved single-bilayers in the region of the anomalous swelling: Effect of curvature and chain length
چکیده انگلیسی

We have carried out density and DSC measurements on large unilamellar vesicles (LUVs) of different phosphocholines in the temperature range corresponding to the anomalous swelling regime of multibilayer systems, adjacent to the chain melting transition region. Experiments were performed for DPPC, DMPC and DC13PC, as a function of aggregate size. The steep drop in density occurring around the main transition gets broader as the vesicle radius decreases and a two-step process is clearly observed for DMPC and DC13PC vesicles smaller than 200 nm. No similar effect is observed for DPPC vesicles, whatever the aggregate dimension. DSC measurements corroborate density results, showing a splitting of the main peak that becomes more evident as the chain length decreases and as the curvature of the aggregate increases.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 291, Issues 1–3, 15 December 2006, Pages 63–68
نویسندگان
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