Hybrid Silica-Silicone Nanocapsules Obtained in Catanionic Vesicles. Cryo-TEM Studies

被引：15

作者：

Kepczynski, Mariusz ^{[1
]}

Bednar, Jan ^{[2
,3
]}

Lewandowska, Joanna ^{[1
]}

Staszewska, Magdalena ^{[1
]}

Nowakowska, Maria ^{[1
]}

机构：

[1] Jagiellonian Univ, Fac Chem, PL-30060 Krakow, Poland

[2] Charles Univ Prague, Fac Med 1, Inst Cellular Biol & Pathol, Prague 12801 2, Czech Republic

[3] Acad Sci Czech Republ, Inst Physiol, Dept Cell Biol, Prague 12801 2, Czech Republic

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2009年 / 9卷 / 05期

关键词：

Nanocapsules; Silicones; Catanionic Vesicles; Cryo-TEM; HOLLOW SPHERES; MICROSPHERES; SIZE;

D O I：

10.1166/jnn.2009.201

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An effective way to obtain hollow hybrid silica-silicone nanocapsules of controlled diameter is presented. For that purpose a new precursor of silica-silicone material, tetra(triethoxysilylethyl) tetramethylcyclotetrasiloxane, was synthesized by hydrosilylation of vinyltriethoxysilane with tetramethylcyclotetrasiloxane. Mixture of dodecyltrimethylammonium bromide (DTAB) and sodium dodecylbenzenesulfonate (SDBS) in the cationic (the DTAB/SDBS system) rich region of the phase diagram was used to form the vesicular templates. The hybrid silica-silicone nanocapsules was obtained in base-catalyzed polymerization/polycondensation processes of the precursor inside of vesicle membrane. The shape and morphology of the silica-silicone nanocapsules was evaluated using transmission cryo-electron microscopy (cryo-TEM). Cryo-TEM reveals formation of discrete hollow shells of diameter consisted with the sizes of equilibrium vesicles used for templating.

引用

页码：3138 / 3143

页数：6

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