Volume 71, Number 1, July 2005
|Page(s)||35 - 41|
|Published online||25 May 2005|
A Poisson/Nernst-Planck model for ionic transport through synthetic conical nanopores
Departament de Ciències Experimentals, Universitat Jaume I Apdo. 224, E-12080 Castelló, Spain
2 Gesellschaft für Schwerionenforschung (GSI) Planckstr. 1, D-64291 Darmstadt, Germany
3 Departamento de Física Aplicada, Universidad Politécnica de Valencia Camino de Vera s/n, E-46022 Valencia, Spain
Corresponding author: firstname.lastname@example.org
Accepted: 29 April 2005
A theoretical model for ionic transport through synthetic conical nanopores obtained using the track-etching technique is presented. The model is based on the Poisson and Nernst-Planck equations. The results provided by the theory are compared with recent experimental current-voltage curves obtained for polymeric membranes containing single, gold-coated conical nanopores. The calculated profiles of average concentration and electric potential along the pore symmetry axis allow for an intuitive explanation of the rectification properties observed in these systems.
PACS: 05.60.Cd – Classical transport / 02.60.Cb – Numerical simulation; solution of equations / 81.07.De – Nanoscale materials and structures: fabrication and characterization: Nanotubes
© EDP Sciences, 2005
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