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Electro-responsive asymmetric nanopores in polyimide with stable ion-current signal

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Abstract.

For the preparation of a single asymmetrically shaped nanopore in a polyimide membrane, Kapton foils were irradiated with single heavy ions and subsequently etched from one side in sodium hypochlorite (NaOCl). The other side of the membrane was protected from etching by a stopping medium containing a reducing agent for hypochlorite ions (OCl-). The resulting conical nanopore rectified ion current and exhibited a stable ion-current flow.

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Authors and Affiliations

  1. Gesellschaft für Schwerionenforschung (GSI), Planckstr. 1, 64291 Darmstadt, Germany, , , , , , DE

    Z. Siwy, D. Dobrev, R. Neumann, C. Trautmann & K. Voss

Authors
  1. Z. Siwy
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  2. D. Dobrev
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  3. R. Neumann
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  4. C. Trautmann
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  5. K. Voss
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Additional information

Received: 23 May 2002 / Accepted: 2 September 2002 / Published online: 15 January 2003

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ID="*"Corresponding author. Fax: +49-6159/712-179, E-mail: Z.Siwy@gsi.de

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Siwy, Z., Dobrev, D., Neumann, R. et al. Electro-responsive asymmetric nanopores in polyimide with stable ion-current signal . Appl Phys A 76, 781–785 (2003). https://doi.org/10.1007/s00339-002-1982-7

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  • DOI: https://doi.org/10.1007/s00339-002-1982-7

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