DNA Tunneling Detector Embedded in a Nanopore
By Ivanov, Aleksandar P.; Instuli, Emanuele; McGilvery, Catriona M.; Baldwin, Geoff; McComb, David W.; Albrecht, Tim & Edel, Joshua B.
Published in Nano Letters
2011
Abstract
We report on the fabrication and characterization of a DNA nanopore detector with integrated tunneling electrodes. Functional tunneling devices were identified by tunneling spectroscopy in different solvents and then used in proof-of-principle experiments demonstrating, for the first time, concurrent tunneling detection and ionic current detection of DNA molecules in a nanopore platform. This is an important step toward ultrafast DNA sequencing by tunneling.