Comment on "Characterization of the tunneling conductance across DNA bases"

Abstract

In a recent article, Zikic {\it et al.} [Phys. Rev. E {\bf 74}, 011919 (2006)] present first-principles calculations of the DNA nucleotides electrical conductance. They report qualitative and quantitative differences with previous work, in particular with that of Zwolak and Di Ventra [Nano Lett. {\bf 5}, 421 (2005)] and Lagerqvist {\it et al.} [Nano Lett. {\bf 6}, 779 (2006)]. In this comment we address the alleged discrepancies and show that Zikic {\it et al.} have seriously misread and misunderstood the existing literature. In addition, we point out the deficiencies of their approach in calculating the conductance of nucleotides and the consequent erroneous conclusions they report.

3 pages, 1 figure

References in corpus (1)

• Dynamical corrections to the DFT-LDA electron conductance in nanoscale systems

Cited by in corpus (8)

• Physical approaches to DNA sequencing and detection
• Quantized ionic conductance in nanopores
• Recent progress in atomistic simulation of electrical current DNA sequencing
• Relaxation-limited electronic currents in extended reservoir simulations
• Analytic expressions for the steady-state current with finite extended reservoirs
• Optimal in situ electromechanical sensing of molecular species
• Evidence of phonon-assisted tunnelling in electrical conduction through DNA molecules
• Dual current anomalies and quantum transport within extended reservoir simulations