Covalently attached multilayer assemblies of citrate-capped colloidal gold nanoparticles and diazo-resins

被引：10

作者：

Bai, Yu ^{[1
]}

Zhao, Shuang ^{[1
]}

Zhang, Kai ^{[1
]}

Sun, Changqing ^{[1
]}

机构：

[1] Jilin Univ, Coll Chem, Changchun 130012, Peoples R China

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2006年 / 281卷 / 1-3期

基金：

中国国家自然科学基金;

关键词：

diazo-resins; colloidal gold nanoparticles; layer-by-layer assembly; covalently attached multilayer films;

D O I：

10.1016/j.colsurfa.2006.02.028

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：

By using an ionic layer-by-layer self-assembly technique, the fabrication of highly stable diazo-resins/colloidal gold nanoparticles multilayer films on quartz wafer, Si slide and glassy carbon electrodes (GCEs) was achieved by the UV irradiation of layer-by-layer self-assemble multilayer films consisting of diazo-resins (DAR) and citrate-capped colloidal gold nanoparticles. UV irradiation converted the electrostatic interaction into covalent bonds at the interfaces. These fabricating processes were followed and further confirmed by UV-vis spectrometry, Fourier transform infrared spectrometer (FTIR), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The obtained thin films were also characterized by X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM). The results show that these assemblies of colloidal gold nanoparticles multilayer films are highly stable and can be kept for a long time, only being removed by physical scrape. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：105 / 112

页数：8

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