Journal Article

PreJuSER-9023

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Fast-ion transport in peptide nanochannels

Baumgaertner, A.FZJ*

2009
Elsevier New York, NY [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.mseb.2009.04.021

Abstract: This review summarizes recent results of the ion transport in narrow peptide nanochannels (PNCs) conducting ions and water molecules at various densities. The molecular structure of the nanochannel is a periodic continuation of the short selectivity pore of a biological potassium channel. The ion conductivity of a PNC can reach ion velocities up to 50 m/s. This phenomena is based on a fine tuned interplay between the three constituents of the PNC: the ions, the water molecules, and the flexible carbonyl groups of the channel's backbone, which represents a one-dimensional fluctuating lattice potential for ions and water. The Unidirectional transport is based on hopping processes of bound ion-water pairs ('permons') mediated by the lattice potential. (c) 2009 Elsevier B.V. All rights reserved.

Keyword(s): J ; Ion conduction (auto) ; Rectification (auto) ; Molecular dynamics simulation (auto) ; Incommensurability (auto) ; Ratchet (auto) ; Potassium channel (auto)

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Theorie der Weichen Materie und Biophysik (IFF-2)
2. Theorie der Weichen Materie und Biophysik (IAS-2)

Research Program(s):

1. Kondensierte Materie (P54)

Appears in the scientific report 2009
Notes: Nachtrag

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