Room temperature negative differential resistance in DNA-based molecular devices

Peng Chung Jangjian; Tzeng Feng Liu; Mei Yi Li; Ming Shih Tsai; Chia-Ching Chang

doi:10.1063/1.3074502

Room temperature negative differential resistance in DNA-based molecular devices

Peng Chung Jangjian, Tzeng Feng Liu, Mei Yi Li, Ming Shih Tsai, Chia-Ching Chang^*

^*此作品的通信作者

研究成果: Article › 同行評審

36 引文斯高帕斯（Scopus）

摘要

A molecular device fabricated from metallic deoxyribonucleic acid (M-DNA) exhibits a negative differential resistance (NDR) behavior. When two gold electrodes were connected by Ni²⁺ -chelated DNA, which was converted from λ-DNA, not only was the conductivity of DNA improved, but a NDR device was formed as a full cyclic voltage sweep was applied to measure its current versus voltage characteristics at room temperature and in an ambient environment. Such electronic characteristics of a M-DNA device may have been caused by the redox reactions of Ni ions. This finding provides a simple way to construct electrical nanodevices from biological molecules.

原文	English
文章編號	043105
期刊	Applied Physics Letters
卷	94
發行號	4
DOIs	https://doi.org/10.1063/1.3074502
出版狀態	Published - 9 2月 2009

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AU - Jangjian, Peng Chung

AU - Liu, Tzeng Feng

AU - Li, Mei Yi

AU - Tsai, Ming Shih

AU - Chang, Chia-Ching

PY - 2009/2/9

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AB - A molecular device fabricated from metallic deoxyribonucleic acid (M-DNA) exhibits a negative differential resistance (NDR) behavior. When two gold electrodes were connected by Ni2+ -chelated DNA, which was converted from λ-DNA, not only was the conductivity of DNA improved, but a NDR device was formed as a full cyclic voltage sweep was applied to measure its current versus voltage characteristics at room temperature and in an ambient environment. Such electronic characteristics of a M-DNA device may have been caused by the redox reactions of Ni ions. This finding provides a simple way to construct electrical nanodevices from biological molecules.

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Room temperature negative differential resistance in DNA-based molecular devices

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