DNA-embedded Au/Ag core-shell nanoparticles

被引：89
|
作者：
Lim, Dong-Kwon [1 ]
Kim, In-Jung [1 ]
Nam, Jwa-Min [1 ]
机构：
[1] Seoul Natl Univ, Dept Chem, Seoul 151747, South Korea
来源：
CHEMICAL COMMUNICATIONS | 2008年 / 42期
关键词：
D O I：
10.1039/b810195g
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Here, we synthesized highly stable DNA-embedded Au/Ag core-shell nanoparticles (NPs) by a straightforward silver-staining of DNA-modified Au nanoparticles (AuNPs); unlike conventional DNA-surface modified NPs that present particle stability issues, DNA-embedded core-shell NPs offer an extraordinary stability with nanoscale controllability of silver shell thickness; these DNA-embedded core-shell NPs show excellent biorecognition properties and Ag shell-thickness-based optical properties, distinctively different from those of a mixture of AuNPs and AgNPs or Ag/Au alloy nanoparticles.
引用
收藏
页码：5312 / 5314
页数：3
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