Issue |
Europhys. Lett.
Volume 67, Number 4, August 2004
|
|
---|---|---|
Page(s) | 683 - 690 | |
Section | Interdisciplinary physics and related areas of science and technology | |
DOI | https://doi.org/10.1209/epl/i2003-10304-y | |
Published online | 01 August 2004 |
On the validity of continuous modelling of ion transport through nanochannels
1
M. Smoluchowski Institute of Physics, Jagellonian University Reymonta 4, PL-30-059 Kraków, Poland
2
Gesellschaft für Schwerionenforschung (GSI) - Planckstr. 1 D-64291 Darmstadt, Germany
3
Silesian University of Technology - Strzody 9, 44-100 Gliwice, Poland
Received:
12
November
2003
Accepted:
4
June
2004
Ion transport through nanopores is modelled by the Smoluchowski equation. The model, based on properties of a bulk electrolyte solution and containing no adjustable parameters, is compared with ion current data recorded for single cylindrical nanopores in polymeric films. It predicts qualitatively a possibility of constructing an ion current rectifier based on the symmetric nanopore with asymmetric charge distribution. Our experimental data, however, indicate that the bulk-type diffusion approach does not describe the surface current, which gives a significant contribution to the total ion current through nanopores.
PACS: 87.16.Uv – Active transport processes; ion channels / 81.07.De – Nanotubes / 81.16.-c – Methods of nanofabrication and processing
© EDP Sciences, 2004
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.