A UNIQUE APPROACH

The challenge of anchoring and electrically characterizing single molecule DNA.
Application of dielectrophoresis (DEP) in our system with an applied ac bias of 1 Vpp (electric field~40 V/microm) at a frequency of 1 MHz provides controlled manipulation of DNA molecule.
The formation of a covalent bond between each terminus of a DNA molecule and the functionalized end of a SWNT electrode. Establishment of a strong coupling between the trapped molecule and the nano-electrodes facilitates the charge transport through the system without the coulomb blocade effect. Presence of a nanotech between the SWNT electrodes that eliminates the contribution of the oxide surface to the charge transport.

Leave a comment

Design a site like this with WordPress.com
Get started