Reversible end-to-end assembly and disassembly of gold nanorods based on pH-responsive host-guest interaction

被引：16
作者：
Xu, Yun
Wang, Xi
Ma, Xiang [1 ]
机构：
[1] East China Univ Sci & Technol, Coll Chem & Mol Engn, Key Lab Adv Mat, Shanghai 200237, Peoples R China
来源：
DYES AND PIGMENTS | 2017年 / 145卷
关键词：
Gold nanorods; End-to-end assembly; Supramolecular interaction; Cucurbituril; ENHANCED RAMAN-SCATTERING; HYBRID NANOSTRUCTURES; AQUEOUS-SOLUTION; AU NANORODS; NANOPARTICLES; HYDROGEL; POLYMERS;
D O I：
10.1016/j.dyepig.2017.06.034
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The reversible end-to-end assembly and disassembly of gold nanorods (GNRs) were efficiently realized by utilizing the pH-responsive host-guest interaction. The guest compound, containing a 4,4'-bipyridine unit and a disulfide group, was synthesized, and could form the 2:1 inclusion compounds with cucurbit [8]uril (CB[8]) host molecules quickly in aqueous solution. Due to the fact that the inclusion compounds could be destroyed and re-formed by adjusting the solution pH, the terminal-modified GNRs could realize the reversible end-to-end assembly and disassembly. The end-to-end assembly and disassembly of GNRs were well characterized by UV-Vis spectra and TEM images. This method, employing supra molecular host-guest interaction to control the reversible linear assembly and disassembly of GNRs, may provide a new idea for the design of smart organic-inorganic hybrid materials. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：385 / 390
页数：6
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