کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
610771 880658 2009 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spontaneous vesicle formation with an ionic liquid amphiphile
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Spontaneous vesicle formation with an ionic liquid amphiphile
چکیده انگلیسی

A simple and effective method for the formation of stable multilamellar vesicles is reported as a potential application of ionic liquid materials (IL’s) and as replacements for conventional surfactants used in such applications. The methodology is based on the various approaches for the formation of vesicles from oppositely charged surfactants. Photon correlation spectroscopy (PCS) and transmission electron microscopy (TEM) have been used to estimate the size of the aggregates; the TEM studies have also revealed morphological differences in the self-assembled systems with changing ionic liquid material. Size measurements from PCS indicate consistent growth of the ionic-liquid containing vesicles with increasing concentration of added anionic surfactant. 2D NOESY NMR spectroscopy have been used to examine the manner in which IL amphiphile self-assembles with the second surfactant in solution. A comparison has been made between the aggregates formed from hexylpyridinium tetrafluoroborate ([HexPy][BF4-])/sodium dodecylsulfate (SDS) and hexylpyridinium bromide ([HexPy][Br])/sodium dodecylsulfate (SDS).

TEM image of fused vesicles prepared from an ionic liquid amphiphile (hexylpyridinium tetrafluoroborate) and an anionic surfactant (sodium dodecylsulfate).Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Colloid and Interface Science - Volume 335, Issue 1, 1 July 2009, Pages 105–111
نویسندگان
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