Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/6808
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Title: Controllable transport of water through nanochannel by rachet-like mechanism
Authors: Lu, H
Nie, X
Wu, F
Zhou, X
Kou, J
Xu, Y
Liu, Y 
Issue Date: 7-May-2012
Source: Journal of chemical physics, 7 May 2012, v. 136, no. 17, 174511, p. 1-7
Abstract: By using molecular dynamics simulation, we have investigated systematically the feasibility of continuous unidirectional water flux across a deformed single-walled carbon nanotube (SWNT) driven by an oscillating charge outside without osmotic pressure or hydrostatic drop. Simulation results indicate that the flux is dependent sensitively on the oscillating frequency of the charge, the distance of the charge from the SWNT, and the asymmetry of the water-SWNT system. A resonance-like phenomenon is found that the water flux is enhanced significantly when the period of the oscillation is close to twice the average hopping time of water molecules inside the SWNT. These findings are helpful in developing a novel design of efficient functional nanofluidic devices.
Keywords: Carbon nanotubes
Deformation
Hopping conduction
Hydrostatics
Molecular dynamics method
Water
Publisher: American Institute of Physics
Journal: Journal of chemical physics 
ISSN: 0021-9606
EISSN: 1089-7690
DOI: 10.1063/1.4707744
Rights: © 2012 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Hangjun Lu et al., J. Chem. Phys. 136, 174511 (2012) and may be found at http://link.aip.org/link/?jcp/136/174511.
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