Facile control of the self-assembly of gold nanoparticles by changing the capping agent structures

被引：12
作者：
Zhou, Hongtao [1 ,2 ]
Zheng, Liqiang [1 ]
Jia, Han [2 ]
机构：
[1] Shandong Univ, Key Lab Colloid & Interface Chem, Minist Educ, Jinan 250100, Shandong, Peoples R China
[2] China Univ Petr Huadong, Coll Petr Engn, Qingdao 266580, Peoples R China
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2014年 / 450卷
基金：
高等学校博士学科点专项科研基金; 中国国家自然科学基金;
关键词：
Gold nanoparticles; Nonionic surfactant; Self-assembly; Mixed capping agents; Capping fashion; LANGMUIR MONOLAYER; SURFACTANT; GROWTH; AGGREGATION; PATTERNS; NANORODS; CHAINS; SALT;
D O I：
10.1016/j.colsurfa.2014.03.013
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：
Facile synthesis and 1D self-assembly of gold nanoparticles were achieved using a series of nonionic surfactants (Tween 20, Tween 40, and Tween 60). The assembly process can be controlled by adjusting the fine structures of surfactants. The effects of the molecular structures of capping agents were demonstrated and the formation mechanism based on the nonuniform distribution of capping ligands around gold nanopartides was proposed. Systems with mixed capping agents (Tween 20 and Tween 60 or Triton X-100) were also investigated. Due to the different capping fashions of the mixed surfactants, the obtained gold nanostructures were changed from chains to particles. Besides, the diverse capping fashions can also interpret the different stabilities of the nanostructures in the saline solutions. (c) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：9 / 14
页数：6
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