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

Research output: Contribution to journalArticle

61 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 languageEnglish
Pages (from-to)405-409
Number of pages5
JournalChemical Physics Letters
Volume355
Issue number5-6
DOIs
Publication statusPublished - 2002 Apr 8

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Fingerprint Dive into the research topics of 'Humidity effects on the conductance of the assembly of DNA molecules'. Together they form a unique fingerprint.

  • Cite this