Self-assembled dye-DNA network and its photoinduced electrical conductivity

被引：30

作者：

Gu, JH ^{[1
]}

Tanaka, S ^{[1
]}

Otsuka, Y ^{[1
]}

Tabata, H ^{[1
]}

Kawai, T ^{[1
]}

机构：

[1] Osaka Univ, Inst Sci & Ind Res, Osaka 5640047, Japan

来源：

APPLIED PHYSICS LETTERS | 2002年 / 80卷 / 04期

关键词：

D O I：

10.1063/1.1435805

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

DNA molecules [poly(dG-dC).poly(dG-dC)] were modified with acridine orange (AO). Direct measurement of the electrical characteristics of the AO-DNA network were performed using a conducting atomic-force microscope (AFM) with a gold coated tip, a second gold electrode being electrically contacted to the dye-DNA/mica surface. Enhancement of electrical conductivity was observed while irradiating the sample with visible light. The results indicated that excited AO obtains an electron from the G site and eventually a hole is generated. (C) 2002 American Institute of Physics.

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页码：688 / 690

页数：3

相关论文

共 33 条

[1] Single molecule physics and chemistry [J].

Bai, CL ;

Wang, C ;

Xie, XS ;

Wolynes, PG .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1999, 96 (20) :11075-11076

[2] Long-range charge hopping in DNA [J].

Bixon, M ;

Giese, B ;

Wessely, S ;

Langenbacher, T ;

Michel-Beyerle, ME ;

Jortner, J .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1999, 96 (21) :11713-11716

[3] DNA-templated assembly and electrode attachment of a conducting silver wire [J].

Braun, E ;

Eichen, Y ;

Sivan, U ;

Ben-Yoseph, G .

NATURE, 1998, 391 (6669) :775-778

[4] Self-assembled DNA networks and their electrical conductivity [J].

Cai, LT ;

Tabata, H ;

Kawai, T .

APPLIED PHYSICS LETTERS, 2000, 77 (19) :3105-3106

[5] Oxidative thymine dimer repair in the DNA helix [J].

Dandliker, PJ ;

Holmlin, RE ;

Barton, JK .

SCIENCE, 1997, 275 (5305) :1465-1468

[6] Distance dependence of electron transfer in acridine-intercalated DNA [J].

Fukui, K ;

Tanaka, K ;

Fujitsuka, M ;

Watanabe, A ;

Ito, O .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY, 1999, 50 (01) :18-27

[7] DNA-dye fluorescence enhancement based on shifting the dimer-monomer equilibrium of fluorescent dye [J].

Guo, XQ ;

Zhang, ZL ;

Zhao, YB ;

Wang, DY ;

Xu, JG .

APPLIED SPECTROSCOPY, 1997, 51 (07) :1002-1007

[8] Long-distance charge transport in duplex DNA: The phonon-assisted polaron-like hopping mechanism [J].

Henderson, PT ;

Jones, D ;

Hampikian, G ;

Kan, YZ ;

Schuster, GB .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1999, 96 (15) :8353-8358

[9] Charge transfer and transport in DNA [J].

Jortner, J ;

Bixon, M ;

Langenbacher, T ;

Michel-Beyerle, ME .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1998, 95 (22) :12759-12765

[10] A new self-fabrication of large-scale deoxyribonucleic acid network on mica surfaces [J].

Kanno, T ;

Tanaka, H ;

Miyoshi, N ;

Kawai, T .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 2000, 39 (4A) :L269-L270

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