Single-Pore Membranes Gated by Microelectromagnetic Traps

被引：12

作者：

Basore, Joseph R. ^{[1
]}

Lavrik, Nickolay V. ^{[2
]}

Baker, Lane A. ^{[1
]}

机构：

[1] Indiana Univ, Dept Chem, Bloomington, IN 47405 USA

[2] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA

来源：

ADVANCED MATERIALS | 2010年 / 22卷 / 25期

关键词：

DNA DETECTION; ON-CHIP; NANOPORE; TRANSPORT; SYSTEMS; ELECTROMAGNETS; FABRICATION; ACTIVATION; MECHANISM; DIODES;

D O I：

10.1002/adma.201000566

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

Gating of a single pore with a microelectromagnetic trap consisting of a single-turn gold wire microfabricated on a silicon membrane is described. A single micrometer-sized pore in the center of the microcoil conducts ionic current under the application of an applied transmembrane potential. When energized, the microelectromagnetic trap attracts a droplet of magnetic fluid, bringing the fluid to rest in the center of the trap, blocking the transport of ions through the pore, turning it "off". Reversal of the current flow through the trap moves the droplet to the periphery of the trap, turning the pore "on".

引用

页码：2759 / +

页数：6

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