双功能
纳米颗粒
化学
聚合
纳米技术
介观物理学
化学反应
制作
组合化学
化学工程
聚合物
有机化学
催化作用
材料科学
病理
工程类
物理
医学
替代医学
量子力学
作者
Weerakanya Maneeprakorn,Mohammad Azad Malik,Paul O’Brien
摘要
Nanoparticles of Au, Ag, CdS, and CdSe have been linked together by a chemical reaction to form controlled assemblies of similar or different types of nanoparticles through amido or azo linkage. The capping of nanoparticles was exchanged with bifunctional groups containing active functional groups at the tails. The reaction between the tails of the capping agents resulted in the formation of amido or azo linkages. These reactions were carried out under very dilute conditions to control the assembly and avoid the polymerization. The assemblies formed included the dimers, trimers, tetramers, and hexa- or heptamers. These reactions are the first examples for the systematic approach to establish the chemical route for the controlled assembly of nanoparticles and open the way for the fabrication of nanoparticle based devices for various application.
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