Single-walled carbon nanotubes with DNA recognition

被引：24
作者：
Yang, Wenrong
Moghaddam, Minoo J.
Taylor, Sarah
Bojarski, Barbara
Wieczorek, Lech
Herrmann, Jan
McCall, Maxine J.
机构：
[1] Univ Sydney, Electron Microscope Unit, AKCMM, Sydney, NSW 2006, Australia
[2] CSIRO Ind Phys, Sydney, NSW 2070, Australia
[3] CSIRO Mol & Hlth Technol, Sydney, NSW 2113, Australia
来源：
CHEMICAL PHYSICS LETTERS | 2007年 / 443卷 / 4-6期
关键词：
FUNCTIONALIZATION; DEVICES;
D O I：
10.1016/j.cplett.2007.06.079
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：
Two methods for attaching DNA to oxidized single-walled carbon nanotubes either in organic solvent or aqueous solution are described. The sites of DNA attachment to the nanotubes have been verified by binding gold nanoparticles modified with DNA of complementary sequence to the DNA-modified nanotubes, and imaging with TEM. The gold nanoparticles appear on the tips of the nanotubes, and at isolated positions (defects) on the sidewalls. The methods provide versatility for the modification of nanotubes with DNA for their directed assembly, or for their composites with gold nanoparticles, into nanoscale devices. Crown Copyright (C) 2007 Published by Elsevier B.V.. All rights reserved.
引用
收藏
页码：169 / 172
页数：4
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