通过双功能氨基/硅氧基配体稳定的金纳米颗粒的简便一锅法合成。

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

作者信息

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

机构信息

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

出版信息

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

DOI:10.1016/j.jcis.2005.01.106

PMID:15914185

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.

摘要

描述了一种使用3-(三甲氧基硅丙基)二乙三胺(TMSP二胺)直接一锅法合成胺稳定金纳米颗粒的方法。该双功能分子的胺基在通过还原HAuCl4形成金纳米颗粒时充当稳定剂。可以很容易地获得尺寸在8到20纳米之间可调的高度稳定的金纳米颗粒。该方法实施起来相当简单，并且对环境友好，因为无需添加外部还原剂。随后，引入的硅氧基官能团用于在金颗粒周围形成二氧化硅壳。