Temperature-dependent reversible self-assembly of gold nanoparticles into spherical aggregates by molecular recognition between pyrenyl and dinitrophenyl units

被引：67
|
作者：
Naka, K [1 ]
Roh, H [1 ]
Chujo, Y [1 ]
机构：
[1] Kyoto Univ, Grad Sch Engn, Dept Polymer Chem, Sakyo Ku, Kyoto 6068501, Japan
来源：
LANGMUIR | 2003年 / 19卷 / 13期
关键词：
D O I：
10.1021/la026898i
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Colloidal gold nanoparticles self-assembled into macroscopic aggregates by charge-transfer interaction between pyrenyl units as an electron donor immobilized on the surface of the gold nanoparticles and a bivalent linker containing two dinitrophenyl units as electron acceptors. Transmission electron microscopy and scanning electron microscopy images showed the spherical aggregates consisting of the gold nanoparticles. The UV-vis absorption spectrum showed a thermally reversible self-assembly process.
引用
收藏
页码：5496 / 5501
页数：6
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