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

页码：4969 / 4974

页数：6

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