Construction and transformation of stimuli-responsive vesicles from the ferrocene derivative supramolecular amphiphiles

被引：17

作者：

Li, Qiuhong ^{[1
,2
]}

Chen, Xiao ^{[1
]}

Yue, Xiu ^{[1
]}

Huang, Dandan ^{[1
]}

Wang, Xudong ^{[1
]}

机构：

[1] Shandong Univ, Key Lab Colloid & Interface Chem, Minist Educ, Jinan 250100, Peoples R China

[2] Shandong Univ Technol, Sch Mat Sci & Engn, Zibo 255049, Peoples R China

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2012年 / 409卷

基金：

中国国家自然科学基金;

关键词：

Ferrocene; Electrochemical oxidation; Vesicles; Cyclodextrins; Stimuli-responsive; CYCLODEXTRIN; ASSEMBLIES; SURFACTANT; NANOTUBES; ACID; AOT;

D O I：

10.1016/j.colsurfa.2012.05.043

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The tough stimuli-responsive vesicles were prepared via electrochemical oxidation on the mixture solution of ferrocenylmerhyl-trimethylammonium iodide (FcMI) and sodium deoxycholate (NaDC). The vesicle structure and morphology are characterized respectively by transmission electron microscopy (TEM), dynamic light scattering (DLS) and atomic force microscopy (AFM). The vesicle shells can be clearly observed by TEM with the thickness ranging from several to several tens of nanometers and their outer diameters at the range of 50-200 nm. The formation of vesicular structures is also supported via AFM measurements. Such tough vesicles made up of ferrocene and deoxycholate blocks are redox-responsive, and their assembly or disassembly behaviors may be controlled by electrochemical methods through the change of ferrocene states between the neutral hydrophobic and the hydrophilic ferrocenium cation. In addition, the stimuli-responsive vesicles can also be formed from the supramolecular inclusion complex between the ferrocene blocks and the beta-cyclodextrin hosts, which can then be transformed into nanotubes with time. The obtained results are significant for the preparation of smart supramolecular aggregates. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：98 / 104

页数：7

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