Computational models in nano-bioelectronics: Simulation of ionic transport in voltage operated channels

Massimo Longaretti, Giovambattista Marino, Bice Chini, Joseph W. Jerome, Riccardo Sacco*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

In this article, a novel mathematical and computational model is proposed for the numerical simulation of Voltage Operated ionic Channels (VOC) in Nano-bioelectronics applications. This is a first step towards a multi-physics description of hybrid bio-electronical devices such as bio-chips. The model consists of a coupled system of nonlinear partial differential equations, comprising a Poisson-Nernst-Planck system to account for electro-chemical phenomena, and a Navier-Stokes system to account for fluid-mechanical phenomena. Suitable functional iteration techniques for problem decoupling and finite element methods for discretization are proposed and discussed. Numerical results on realistic VOCs illustrate the validity of the model and its accuracy by comparison with relevant computed channel equivalent electrical parameters with measured data.

Original languageEnglish (US)
Pages (from-to)3686-3694
Number of pages9
JournalJournal of Nanoscience and Nanotechnology
Volume8
Issue number7
DOIs
StatePublished - Jul 1 2008

Keywords

  • Hybrid bio-artificial systems
  • Ionic channels
  • Ionic-electrical coupling
  • Mathematical modeling
  • Nanotechnology
  • Numerical simulation

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

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