Nanofluidic diode generated by pH gradient inside track-etched conical nanopore

L. Wang; W. Guo; Y. B. Xie; X. W. Wang; J. M. Xue; Y. G. Wang

doi:10.1016/j.radmeas.2009.10.042

Nanofluidic diode generated by pH gradient inside track-etched conical nanopore

L. Wang, W. Guo, Y. B. Xie, X. W. Wang, J. M. Xue, Y. G. Wang

Peking University

科研成果: 期刊稿件 › 文章 › 同行评审

42 引用（Scopus）

摘要

A nanofluidic diode is produced with a track-etched single conical nanopore embedded in a polyethylene terephthalate (PET) film. It has a very strong current rectification behavior which depends on the surface charge densities and the solution salt concentration. We tried to control the current rectification properties by using asymmetric pH solutions on the two side of nanopore membrane, because this arrangement could adjust the surface charge density distribution inside the nanopore since it depends on the local pH value. This nanofluidic diode is analogous to a bipolar semiconductor diode which is sensitive to the solution pH values.

源语言	英语
页（从-至）	1119-1122
页数	4
期刊	Radiation Measurements
卷	44
期	9-10
DOI	https://doi.org/10.1016/j.radmeas.2009.10.042
出版状态	已出版 - 10月 2009
已对外发布	是

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abstract = "A nanofluidic diode is produced with a track-etched single conical nanopore embedded in a polyethylene terephthalate (PET) film. It has a very strong current rectification behavior which depends on the surface charge densities and the solution salt concentration. We tried to control the current rectification properties by using asymmetric pH solutions on the two side of nanopore membrane, because this arrangement could adjust the surface charge density distribution inside the nanopore since it depends on the local pH value. This nanofluidic diode is analogous to a bipolar semiconductor diode which is sensitive to the solution pH values.",

keywords = "Asymmetric pH gradient, Distribution of surface charge, Rectification effect",

author = "L. Wang and W. Guo and Xie, {Y. B.} and Wang, {X. W.} and Xue, {J. M.} and Wang, {Y. G.}",

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AU - Wang, L.

AU - Guo, W.

AU - Xie, Y. B.

AU - Wang, X. W.

AU - Xue, J. M.

AU - Wang, Y. G.

PY - 2009/10

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N2 - A nanofluidic diode is produced with a track-etched single conical nanopore embedded in a polyethylene terephthalate (PET) film. It has a very strong current rectification behavior which depends on the surface charge densities and the solution salt concentration. We tried to control the current rectification properties by using asymmetric pH solutions on the two side of nanopore membrane, because this arrangement could adjust the surface charge density distribution inside the nanopore since it depends on the local pH value. This nanofluidic diode is analogous to a bipolar semiconductor diode which is sensitive to the solution pH values.

AB - A nanofluidic diode is produced with a track-etched single conical nanopore embedded in a polyethylene terephthalate (PET) film. It has a very strong current rectification behavior which depends on the surface charge densities and the solution salt concentration. We tried to control the current rectification properties by using asymmetric pH solutions on the two side of nanopore membrane, because this arrangement could adjust the surface charge density distribution inside the nanopore since it depends on the local pH value. This nanofluidic diode is analogous to a bipolar semiconductor diode which is sensitive to the solution pH values.

KW - Asymmetric pH gradient

KW - Distribution of surface charge

KW - Rectification effect

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EP - 1122

JO - Radiation Measurements

JF - Radiation Measurements

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Nanofluidic diode generated by pH gradient inside track-etched conical nanopore

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