Electrical conduction through poly(dA)-poly(dT) and poly(dG)-poly(dC) DNA molecules

K. H. Yoo, D. H. Ha, J. O. Lee, J. W. Park, Jinhee Kim, J. J. Kim, H. Y. Lee, T. Kawai, Han Yong Choi

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Abstract

The temperature dependence of I-V curves for poly(dA)-poly(dT) and poly(dG)-poly(dC) DNA molecules trapped between two metal electrodes was studied. For both samples, most experimental results except the temperature dependence of the hopping distance for poly(dA)-poly(dT) are interpreted within the polaron hopping model. The gate-voltage effect on the I-V curve was also measured. It was found that poly(dA)-poly(dT) exhibits n-type semiconducting behaviors, while poly(dG)-poly(dC) does p-type ones.

Original languageEnglish
Article number198102
Pages (from-to)198102/1-198102/4
JournalPhysical review letters
Volume87
Issue number19
Publication statusPublished - 2001 Nov 5

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Yoo, K. H., Ha, D. H., Lee, J. O., Park, J. W., Kim, J., Kim, J. J., Lee, H. Y., Kawai, T., & Choi, H. Y. (2001). Electrical conduction through poly(dA)-poly(dT) and poly(dG)-poly(dC) DNA molecules. Physical review letters, 87(19), 198102/1-198102/4. [198102].