Electrical Transport Properties of Au-Doped Deoxyribonucleic Acid Molecules
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概要
- 論文の詳細を見る
Deoxyribonucleic acid (DNA) molecules were doped with Au atoms and their electrical transport properties were measured. The Au doping was carried out by incubating a mixture of HAuCl4$\cdot$3H2O and DNA solutions. The binding of Au atoms to DNA bases was identified using Fourier transform infrared spectroscopy and X-ray photoemission spectroscopy. The Au-doped DNA molecules were deposited on nanoelectrodes and the presence of the molecules between the electrodes was determined by both scanning electron microscopy and atomic force microscopy. Measurement of the current-voltage characteristics showed that the Au-doped DNA molecules exhibited a higher conductivity than undoped DNA molecules. Detailed analysis of the chemical composition shows that there is a strong possibility of reliably controlling the conductivity of DNA molecules using this method.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2005-04-15
著者
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Kim Hyung
Department Of Biochemistry Ewha Womans University School Of Medicine
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Hwang Jong
Institute Of Quantum Information Processing And Systems University Of Seoul
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Ahn Doyeol
Institute Of Quantum Information & Processing Systems University Of Seoul
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Jin Jung
Department Of Chemistry Korea University
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Kwon Young
Department Of Biopharmaceutics Nihon Pharmaceutical University
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Hwang Sung
Department of Electronics & Computer Engineering, Korea University, Anam, Sungbuk, Seoul 136-701, Korea
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Hong Su
Department of Dental Microbiology, School of Dentistry, Kyungpook National University
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Hong Su
Department of Electronics & Computer Engineering, Korea University, Anam, Sungbuk, Seoul 136-701, Korea
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Hwang Sung
Department of Electronic and Computer Engineering, Korea University, Anam, Sungbuk, Seoul 136-075, Korea
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Hwang Sung
Department of Chemistry, Sahmyook University
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