Facile one-pot synthesis of gold nanoparticles stabilized with bifunctional amino/siloxy ligands

Haoguo Zhu; Zhengwei Pan; Edward W Hagaman; Chengdu Liang; Steven H Overbury; Sheng Dai

doi:10.1016/j.jcis.2005.01.106

Facile one-pot synthesis of gold nanoparticles stabilized with bifunctional amino/siloxy ligands

J Colloid Interface Sci. 2005 Jul 1;287(1):360-5. doi: 10.1016/j.jcis.2005.01.106.

Authors

Haoguo Zhu¹, Zhengwei Pan, Edward W Hagaman, Chengdu Liang, Steven H Overbury, Sheng Dai

Affiliation

¹ Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.

PMID: 15914185
DOI: 10.1016/j.jcis.2005.01.106

Abstract

A method for the direct one-pot synthesis of amine-stabilized gold nanoparticles using 3-(trimethoxysilylpropyl)diethylenetriamine (TMSP dien) is described. The amine groups of this bifunctional molecule act as a stabilizer for gold nanoparticles as they form by reduction of HAuCl4. Highly stable gold nanoparticles with sizes tunable between 8 and 20 nm can be readily obtained. This method is quite simple to implement and environmentally benign as there is no need to add an external reducing reagent. The incorporated siloxy functionality was subsequently used to form a silica shell around the gold particle.

Publication types

Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

Amines / chemistry*
Gold / chemistry*
Ligands
Nanostructures / chemistry*
Nanotechnology / methods*
Silicon Dioxide / chemistry*

Substances

Amines
Ligands
Gold
Silicon Dioxide