Spectroscopic evaluation of 4-(dimethylamino)pyridine versus citrate as stabilizing ligand for gold nanoparticles

被引：12

作者：

Ghosh, Sujit Kumar ^{[1
]}

机构：

[1] Assam Univ, Dept Chem, Silchar 788011, Assam, India

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2010年 / 371卷 / 1-3期

关键词：

Trisodium citrate; 4-(N; N-Dimethylamino)pyridine; Gold nanoparticles; Zeta potential; Surface plasmon resonance; Electromagnetic interaction; SURFACE-PLASMON RESONANCE; SMALL METALLIC PARTICLES; SIZE REGIME DEPENDENCE; NANOSTRUCTURES; NANOCRYSTALS; MOLECULES; CHEMISTRY; SILVER; STATES;

D O I：

10.1016/j.colsurfa.2010.09.010

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：

A comparative study has been made on the synthetic strategy, particle morphology and surface charge of the aqueous dispersion gold nanoparticles stabilized electrostatically by 4-(dimethylamino)pyridine (DMAP) and trisodium citrate. The information from UV-vis spectroscopy, transmission electron microscopy and zeta potential measurements substantiated the result. To explore the real-time applications of these two interesting systems, solubility and stability of these two types of stabilized particles and the nature and extent of the interaction of the stabilizing ligand shell with the surface of gold nanoparticles have been elucidated. The size regime dependence of the citrate-stabilized particles has been rationalized in view of the dependence of surface area on the size of the particles. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：98 / 103

页数：6

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