Cited Article: Majumder M. Nanoscale hydrodynamics - Enhanced flow in carbon nanotubes
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Title:
Fast-ion transport in peptide nanochannels
Authors:
Baumgaertner, A
Author Full Names:
Baumgaertner, A.
Source:
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS 165 (3): 261-265 Sp. Iss. SI DEC 15 2009
Language:
English
Document Type:
Proceedings Paper
Author Keywords:
Ion conduction; Rectification; Molecular dynamics simulation; Incommensurability; Ratchet; Potassium channel
KeyWords Plus:
CARBON NANOTUBE MEMBRANES; K+ SELECTIVITY FILTER; SUPERIONIC CONDUCTORS; MASS-TRANSPORT; CHANNEL; HOLLANDITE; DYNAMICS; MODELS; ORDER
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.
Reprint Address:
Baumgaertner, A, Forschungszentrum Julich, Inst Festkorperforsch, D-52425 Julich, Germany.
Research Institution addresses:
Forschungszentrum Julich, Inst Festkorperforsch, D-52425 Julich, Germany
E-mail Address:
a.baumgaertner@fz-juelich.de
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Cited Reference Count:
45
Times Cited:
0
Publisher:
ELSEVIER SCIENCE BV; PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Subject Category:
Materials Science, Multidisciplinary; Physics, Condensed Matter
ISSN:
0921-5107
DOI:
10.1016/j.mseb.2009.04.021
IDS Number:
538BA
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