期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 55, 期 3, 页码 936-940出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201508355
关键词
coumarin; gold; nanoparticles; photolysis; reversible self-assembly
资金
- National Natural Science Foundation of China [51402051, 51172045]
- Research Fund for the Doctoral Program of Higher Education of China [20113514120006]
A novel light-induced reversible self-assembly (LIRSA) system is based on the reversible photodimerization and photocleavage of coumarin groups on the surface of gold nanoparticles (AuNPs) in THF solution. Facilitated by coumarin groups, light irradiation at 365nm triggers the stable assembly of monodisperse AuNPs; the resulting self-assembly system can be disassembled back to the disassembled state by a relatively short exposure to benign UV light. The reversible self-assembly cycle can be repeated 4times. A specific concentration range of coumarin ligand and the THF solvent were identified to be the two predominant factors that contribute to the LIRSA of AuNPs. This is the first successful application of reversible photodimerization based on a coumarin derivative in the field of AuNP LIRSA. This LIRSA system may provide unique opportunities for the photoregulated synthesis of many adjustable nanostructures and devices.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据