Fabrication of Linear Aniline-DNA Complex Nanowires and  DNA-templated  Polyaniline Nanowires

Chem. J. Chinese Universities

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Fabrication of Linear Aniline-DNA Complex Nanowires and DNA-templated Polyaniline Nanowires

YANG Tao; WEI Gang; NIU Li*; LI Zhuang

State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of
Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;
Graduate School of the Chinese Academy of Sciences, Beijing 100039, China

Received:2005-04-19 Revised:1900-01-01 Online:2006-06-10 Published:2006-06-10
Contact: NIU Li

Abstract

Abstract: In the present work, we developed a simple method for fabricating conducting polymer nanowires and characterized the resulted nanostructures mainly by atomic force microscopy(AFM). With DNA as templates, aniline-DNA complex nanowires were first produced in solution via a self-assembled process in which aniline monomers assembled on the entire DNA molecule surface from any direction. Compressed gas flow was then used to stretch the obtained aniline-DNA complex nanowires onto mica substrate. The linear aniline-DNA complex nanowire arrays can be directly observed from the AFM images. Finally, we got the polyaniline(PAn) nanowires based on the precursor of aniline-DNA complex nanowires through further chemical oxidative polymerization. The aniline-DNA complex nanowires and the polyaniline(PAn-DNA) nanowires both exhibit a low background on the unmodified mica substrates. This strategy can be adopted for constructing other conducting polymer nanowires.

Key words: DNA-template, Polyaniline, Nanowire, AFM

CLC Number:

O640
Q523

TrendMD:

YANG Tao; WEI Gang; NIU Li*; LI Zhuang. Fabrication of Linear Aniline-DNA Complex Nanowires and DNA-templated Polyaniline Nanowires[J]. Chem. J. Chinese Universities, doi: .

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Fabrication of Linear Aniline-DNA Complex Nanowires and DNA-templated Polyaniline Nanowires

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