On the validity of continuous modelling of ion transport through nanochannels

被引：52

作者：

Fulinski, A

Kosinska, ID

Siwy, Z

机构：

[1] Jagiellonian Univ, M Smoluchowski Inst Phys, PL-30059 Krakow, Poland

[2] Gesell Schwerionenforsch GSI, D-64291 Darmstadt, Germany

[3] Silesian Tech Univ, PL-44100 Gliwice, Poland

来源：

EUROPHYSICS LETTERS | 2004年 / 67卷 / 04期

关键词：

D O I：

10.1209/epl/i2003-10304-y

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

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收藏

页码：683 / 689

页数：7

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共 28 条

[11] Perspective - Progress and prospects in permeation [J].

Nonner, W ;

Chen, DP ;

Eisenberg, B .

JOURNAL OF GENERAL PHYSIOLOGY, 1999, 113 (06) :773-782

[12] MODEL PORES OF MOLECULAR DIMENSION - PREPARATION AND CHARACTERIZATION OF TRACK-ETCHED MEMBRANES [J].

QUINN, JA ;

ANDERSON, JL ;

HO, WS ;

PETZNY, WJ .

BIOPHYSICAL JOURNAL, 1972, 12 (08) :990-&

[13] Synthetic nanopores with fixed charges:: An electrodiffusion model for ionic transport -: art. no. 011910 [J].

Ramírez, P ;

Mafé, S ;

Aguilella, VM ;

Alcaraz, A .

PHYSICAL REVIEW E, 2003, 68 (01)

[14] Comment on "Fabrication of a synthetic nanopore ion pump" [J].

Rischel, C ;

Flyvbjerg, H .

PHYSICAL REVIEW LETTERS, 2003, 91 (17)

[15] An artificial nanopore for molecular sensing [J].

Saleh, OA ;

Sohn, LL .

NANO LETTERS, 2003, 3 (01) :37-38

[16] Comment on "Fabrication of a synthetic nanopore ion pump" - Reply [J].

Siwy, Z ;

Fulinski, A .

PHYSICAL REVIEW LETTERS, 2003, 91 (17)

[17] A nanodevice for rectification and pumping ions [J].

Siwy, Z ;

Fulinski, A .

AMERICAN JOURNAL OF PHYSICS, 2004, 72 (05) :567-574

[18] Preparation of synthetic nanopores with transport properties analogous to biological channels [J].

Siwy, Z ;

Apel, P ;

Baur, D ;

Dobrev, DD ;

Korchev, YE ;

Neumann, R ;

Spohr, R ;

Trautmann, C ;

Voss, KO .

SURFACE SCIENCE, 2003, 532 :1061-1066

[19] Fabrication of a synthetic nanopore ion pump [J].

Siwy, Z ;

Fulinski, A .

PHYSICAL REVIEW LETTERS, 2002, 89 (19)

[20] Rectification and voltage gating of ion currents in a nanofabricated pore [J].

Siwy, Z ;

Gu, Y ;

Spohr, HA ;

Baur, D ;

Wolf-Reber, A ;

Spohr, R ;

Apel, P ;

Korchev, YE .

EUROPHYSICS LETTERS, 2002, 60 (03) :349-355