The effect of backbone disorder on electrical conductivity of poly(dG)- poly(dC) DNA molecule at room temperature

Efta Yudiarsah, Daniel K. Suhendro, Rosari Saleh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Tight binding Hamiltonian model has been used in studying the influence of the surrounding medium on electrical conductivity of a Poly(dG)-Poly(dC) DNA molecule. This effect is studied in room temperature by taking into account twisting motion with two different low frequencies separately. Transfer matrix technique and scattering matrix method have been employed simultaneously. The current voltage characteristics and the differential conductance show that as the backbone disorder increases, the current decreases and the threshold voltage rises. However as the backbone disorder continues to increase, the reverse of the above phenomenon is observed.

Original languageEnglish
Title of host publicationKey Engineering Materials - Development and Application
PublisherTrans Tech Publications
Pages357-361
Number of pages5
ISBN (Print)9783038350668
DOIs
Publication statusPublished - 1 Jan 2014
Event4th International Conference on Key Engineering Materials, ICKEM 2014 - Bali, Indonesia
Duration: 22 Mar 201423 Mar 2014

Publication series

NameAdvanced Materials Research
Volume911
ISSN (Print)1022-6680

Conference

Conference4th International Conference on Key Engineering Materials, ICKEM 2014
CountryIndonesia
CityBali
Period22/03/1423/03/14

Keywords

  • Backbone disorder
  • Charge transport
  • DNA
  • Poly(dG)-poly(dC)
  • Twist frequency

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    Yudiarsah, E., Suhendro, D. K., & Saleh, R. (2014). The effect of backbone disorder on electrical conductivity of poly(dG)- poly(dC) DNA molecule at room temperature. In Key Engineering Materials - Development and Application (pp. 357-361). (Advanced Materials Research; Vol. 911). Trans Tech Publications. https://doi.org/10.4028/www.scientific.net/AMR.911.357