Rectification and voltage gating of ion currents in a nanofabricated pore

被引：221

作者：

Siwy, Z

Gu, Y

Spohr, HA

Baur, D

Wolf-Reber, A

Spohr, R

Apel, P

Korchev, YE

机构：

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

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

[3] Univ London Imperial Coll Sci Technol & Med, London W12 0NN, England

[4] Joint Inst Nucl Res, Flerov Lab Nucl React, Dubna 141980, Russia

来源：

EUROPHYSICS LETTERS | 2002年 / 60卷 / 03期

关键词：

D O I：

10.1209/epl/i2002-00271-3

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have fabricated a voltage sensor in the form of a conically shaped nanopore in a polyethylene terephthalate (PET) foil. The pore is produced by irradiation of the foil with a single heavy ion and subsequent etching in alkaline solution. The resulting p re functions as a voltage gate and rectifies ion current due to changes of its diameter in an electrical field. Ion currents through the pore show voltage-dependent fluctuations, whose kinetics are similar as in voltage-gated biological ion channels and pores.

引用

页码：349 / 355

页数：7

共 30 条

[1]

[Anonymous], [No title captured]

[2] Track size and track structure in polymer irradiated by heavy ions [J].