Fabrication of silver nanoparticles ring templated by plasmid DNA

被引：17
|
作者：
Sun, Lanlan [1 ]
Wei, Gang [1 ]
Song, Yonghai [1 ]
Liu, Zhiguo [1 ]
Wang, Li [1 ]
Li, Zhuang [1 ]
机构：
[1] Chinese Acad Sci, Changchun Inst Appl Chem, Grad Sch, State Key Lab Electroanalyt Chem, Changchun 130022, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2006年 / 252卷 / 14期
基金：
中国国家自然科学基金;
关键词：
DNA; electrostatic; nanoparticle; ring;
D O I：
10.1016/j.apsusc.2005.07.016
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Silver nanoparticles ring was successfully fabricated by electrostatic assembling 4-aminothiophenol (4-ATP) capped silver nanoparticles on predefined extended circular plasmid pBR322 DNA. The silver nanoparticles ring which was about 1.5 mu m in length, and about 2.2 nm in height can be obtained by adjusting the reaction time. The normal Raman scattering spectra reveal that the 4-ATP has contacted with the silver nanoparticles by forming a strong Ag-S bond. The AFM data show that the assembly of 4-ATP capped silver nanoparticles on DNA is ordered. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：4969 / 4974
页数：6
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