Humidity effects on the conductance of the assembly of DNA molecules

Dong Han Ha; Hyunsoo Nham; Kyung Hwa Yoo; Hye Mi So; Hae Yeon Lee; Tomoji Kawai

doi:10.1016/S0009-2614(02)00142-2

Humidity effects on the conductance of the assembly of DNA molecules

Dong Han Ha, Hyunsoo Nham, Kyung Hwa Yoo, Hye Mi So, Hae Yeon Lee, Tomoji Kawai

Department of Physics

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

62 Citations (Scopus)

Abstract

We have studied the effects of relative humidity on the conductance of the assembly of poly(dG)-poly(dC) and poly(dA)-poly(dT) DNA molecules. The exponential dependence of conductance on the relative humidity is observed and explained in terms of ionic conduction through the hydration layers around DNA. The poly(dG)-poly(dC) specimen has larger sensitivity to the relative humidity and smaller activation energy for the ionic conduction than the poly(dA)-poly(dT) specimen. Our results show that the conductance of a specimen consisting of multiple DNA molecules might be strongly affected by the relative humidity.

Original language	English
Pages (from-to)	405-409
Number of pages	5
Journal	Chemical Physics Letters
Volume	355
Issue number	5-6
DOIs	https://doi.org/10.1016/S0009-2614(02)00142-2
Publication status	Published - 2002 Apr 8

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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10.1016/S0009-2614(02)00142-2

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title = "Humidity effects on the conductance of the assembly of DNA molecules",

abstract = "We have studied the effects of relative humidity on the conductance of the assembly of poly(dG)-poly(dC) and poly(dA)-poly(dT) DNA molecules. The exponential dependence of conductance on the relative humidity is observed and explained in terms of ionic conduction through the hydration layers around DNA. The poly(dG)-poly(dC) specimen has larger sensitivity to the relative humidity and smaller activation energy for the ionic conduction than the poly(dA)-poly(dT) specimen. Our results show that the conductance of a specimen consisting of multiple DNA molecules might be strongly affected by the relative humidity.",

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T1 - Humidity effects on the conductance of the assembly of DNA molecules

AU - Ha, Dong Han

AU - Nham, Hyunsoo

AU - Yoo, Kyung Hwa

AU - So, Hye Mi

AU - Lee, Hae Yeon

AU - Kawai, Tomoji

PY - 2002/4/8

Y1 - 2002/4/8

N2 - We have studied the effects of relative humidity on the conductance of the assembly of poly(dG)-poly(dC) and poly(dA)-poly(dT) DNA molecules. The exponential dependence of conductance on the relative humidity is observed and explained in terms of ionic conduction through the hydration layers around DNA. The poly(dG)-poly(dC) specimen has larger sensitivity to the relative humidity and smaller activation energy for the ionic conduction than the poly(dA)-poly(dT) specimen. Our results show that the conductance of a specimen consisting of multiple DNA molecules might be strongly affected by the relative humidity.

AB - We have studied the effects of relative humidity on the conductance of the assembly of poly(dG)-poly(dC) and poly(dA)-poly(dT) DNA molecules. The exponential dependence of conductance on the relative humidity is observed and explained in terms of ionic conduction through the hydration layers around DNA. The poly(dG)-poly(dC) specimen has larger sensitivity to the relative humidity and smaller activation energy for the ionic conduction than the poly(dA)-poly(dT) specimen. Our results show that the conductance of a specimen consisting of multiple DNA molecules might be strongly affected by the relative humidity.

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