Influence of humidity on the electrical conductivity of synthesized DNA film on nanogap electrode

Yoichi Otsuka; Hea Yeon Lee; Jian Hua Gu; Jeong O. Lee; Kyung Hwa Yoo; Hidekazu Tanaka; Hitoshi Tabata; Tomoji Kawai

doi:10.1143/jjap.41.891

Influence of humidity on the electrical conductivity of synthesized DNA film on nanogap electrode

Yoichi Otsuka, Hea Yeon Lee, Jian Hua Gu, Jeong O. Lee, Kyung Hwa Yoo, Hidekazu Tanaka, Hitoshi Tabata, Tomoji Kawai

Department of Physics

Research output: Contribution to journal › Article › peer-review

45 Citations (Scopus)

Abstract

We have studied the electrical conductivity of DNA film using nanogap electrodes. Current-voltage measurements and alternating current measurements were performed for analysis of conductivity. The electrical conductivity of the DNA films of poly(dG)·poly(dC) are found to depend strongly on the humidity. The resistance of poly(dG)·poly(dC) decreases dramatically with increasing relative humidity. The contact resistance between DNA film and Au electrodes is also examined by the conventional four-probe technique.

Original language	English
Pages (from-to)	891-894
Number of pages	4
Journal	Japanese Journal of Applied Physics
Volume	41
Issue number	2 A
DOIs	https://doi.org/10.1143/jjap.41.891
Publication status	Published - 2002 Feb

All Science Journal Classification (ASJC) codes

Engineering(all)
Physics and Astronomy(all)

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abstract = "We have studied the electrical conductivity of DNA film using nanogap electrodes. Current-voltage measurements and alternating current measurements were performed for analysis of conductivity. The electrical conductivity of the DNA films of poly(dG)·poly(dC) are found to depend strongly on the humidity. The resistance of poly(dG)·poly(dC) decreases dramatically with increasing relative humidity. The contact resistance between DNA film and Au electrodes is also examined by the conventional four-probe technique.",

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AU - Otsuka, Yoichi

AU - Lee, Hea Yeon

AU - Gu, Jian Hua

AU - Lee, Jeong O.

AU - Yoo, Kyung Hwa

AU - Tanaka, Hidekazu

AU - Tabata, Hitoshi

AU - Kawai, Tomoji

PY - 2002/2

Y1 - 2002/2

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AB - We have studied the electrical conductivity of DNA film using nanogap electrodes. Current-voltage measurements and alternating current measurements were performed for analysis of conductivity. The electrical conductivity of the DNA films of poly(dG)·poly(dC) are found to depend strongly on the humidity. The resistance of poly(dG)·poly(dC) decreases dramatically with increasing relative humidity. The contact resistance between DNA film and Au electrodes is also examined by the conventional four-probe technique.

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Influence of humidity on the electrical conductivity of synthesized DNA film on nanogap electrode

Abstract

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