Conical nanopore membranes: Controlling the nanopore shape

被引：143

作者：

Harrell, CC

Siwy, ZS

Martin, CR ^{[1
]}

机构：

[1] Univ Florida, Dept Chem, Gainesville, FL 32611 USA

[2] Univ Florida, Ctr Res Bio Nano Interface, Gainesville, FL 32611 USA

来源：

SMALL | 2006年 / 2卷 / 02期

关键词：

aniscitropic etching; biosensors; conical nanopores; membranes; nanoporous materials;

D O I：

10.1002/smll.200500196

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Preparation of conical nanopore membranes by controlling the nanopore shape was investigated. It was found that the cone angle of conical nanopores prepared by anisotropic etching of heavy ion-tracked polymer films can be systematically varied by varying the transmembrane potential difference applied during pore etching. The diameter of the base opening was found to be increasing with the magnitude of the applied potential difference. The results suggested that larger base openings can be obtained at higher transmembrane potentials.

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页码：194 / 198

页数：5

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