کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
594534 1453983 2011 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Vesicle formation in mixture of a PEO-PPO-PEO block copolymer (Pluronic P123) and a nonionic surfactant (Span 65) in water
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Vesicle formation in mixture of a PEO-PPO-PEO block copolymer (Pluronic P123) and a nonionic surfactant (Span 65) in water
چکیده انگلیسی

Fabrication of vesicles with the diameter of 4–30 μm was achieved by mixing hydrophobic nonionic surfactant (Span 65) with a poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) block copolymer (Pluronic P123) in aqueous solutions at room temperature. Ring-shaped structure of the Pluronic P123/Span 65 mixture assemblies was confirmed by fluorescence microscopy. The presence of internal aqueous phase in the Pluronic P123/Span 65 mixture assemblies was determined by measuring the entrapment efficiency of calcein using fluorescence spectroscopy. On the other hand, Pluronic P123/Span 60 mixture system formed wire-like assemblies but not vesicles.

.Figure optionsDownload as PowerPoint slideHighlights
► Vesicle formation from Pluronic P123/Span 65 mixture in water.
► Wire-like assemblies formed from Pluronic P123/Span 60 mixture in water.
► Ring-shaped structure of Pluronic P123/Span 65 mixture assemblies observed by fluorescence microscopy.
► Wire-like assemblies of Pluronic P123/Span 60 mixture observed by cryo-transmission electron microscopy.
► Internal aqueous phase of Pluronic P123/Span 65 mixture vesicles confirmed by measuring the entrapment efficiency of calcein.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 389, Issues 1–3, 20 September 2011, Pages 82–89
نویسندگان
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