Phys. Rev. Lett. 89, 198103 (2002) [4 pages]

Fabrication of a Synthetic Nanopore Ion Pump

Abstract

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Z. Siwy^1,2 and A. Fuliński³
¹Silesian University of Technology, Strzody 9, 44-100 Gliwice, Poland
²Gesellschaft für Schwerionenforschung (GSI), Planckstrasse 1, D-64291 Darmstadt, Germany
³M. Smoluchowski Institute of Physics, Jagellonian University, Reymonta 4, PL-30-059 Kraków, Poland

Received 25 March 2002; published 18 October 2002

See accompanying Physics Focus

We present a synthetic nanodevice, which transports potassium ions against their concentration gradient if stimulated with external field fluctuations. It consists of a single, conical pore, created in a thin polyethylene terephthalate film. The pumping mechanism is similar to one of longitudinally oscillating deterministic ratchets.

URL:

http://link.aps.org/doi/10.1103/PhysRevLett.89.198103

DOI:

10.1103/PhysRevLett.89.198103

PACS:

87.16.Uv, 61.82.-d, 81.07.De, 81.16.-c

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Phys. Rev. Lett. 89, 198103 (2002) [4 pages]

Fabrication of a Synthetic Nanopore Ion Pump

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