Nano Express

Nanoscale Research Letters

, Volume 4, Issue 4, pp 321-326

Open Access This content is freely available online to anyone, anywhere at any time.

Study on the Electric Conductivity of Ag-Doped DNA in Transverse Direction

  • Ge BanAffiliated withSchool of Physical Science and Information Technology, Liaocheng University Email author 
  • , Ruixin DongAffiliated withSchool of Physical Science and Information Technology, Liaocheng University
  • , Ke LiAffiliated withSchool of Physical Science and Information Technology, Liaocheng University
  • , Hongwen HanAffiliated withSchool of Physical Science and Information Technology, Liaocheng University
  • , Xunling YanAffiliated withSchool of Physical Science and Information Technology, Liaocheng University

Abstract

In this article, we reported a novel experiment results on Ag-doped DNA conductor in transverse direction. IV characteristics were measured and the relative conductances were calculated for different silver ions concentrations. With the increase of the concentration of silver ions, the conductive ability of DNA risen rapidly, the relative conductance of DNA enhanced about three magnitudes and reached a stable value when Ag+ concentration was up to 0.005 mM. In addition, Raman spectra were carried out to analyse and confirm conduction mechanism.

Keywords

Ag-doped DNA Gold electrode Relative conductance Increase Raman spectra