Electrical Conduction through dsDNA-Molecule with Nanoscale Break Junctions
28 Jul 2005 | Online Presentations | Contributor(s): Kyung J. Jeong, Ajit Mahapatro, Sugata Bhattacharya, Gil Lee, David Janes
Measuring the electrical conductivity through a specific strand of DNA is of great interest to the nano-science and engineering community. This work focuses on the electrical conduction through 15 base-pair, double helix oligo-nucleotides with various sequences. The current-voltage characteristics of the double strands are measured in a metal(Au)/ds-DNA/metal(Au) structure fabricated by immobilizing the dithiol derivatized double-stranded DNA oligionuleotide sequences in nanoscale gaps between pairs of gold (Au) electrodes, achieved through an electromigration-induced break-junction (EIBJ) technique performed at room temperature.