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Title:Static and alternating electric field and distance-dependent effects on carbon nanotube-assisted water self-diffusion across lipid membranes
Authors:J.-A. Garate, N.J. English and J.M.D. MacElroy, 2009
Abstract: Water-self-diffusion through single-walled carbon nanotubes (SWCNTs) inserted normal to a phospholipid membrane has been studied using equilibrium and nonequilibrium molecular dynamics simulations in the presence of static and alternating electrical fields. Four different SWCNTs were investigated: (5,5), (6,6), (8,8), and (11,11) and also three arrays of four (6,6) SWCNTs separated by 15, 20, and 25 Å, respectively. The (5,5) system shows interesting behavior, where an increase in the applied field frequency in the z direction decreases the water permeation rates, reaching values at higher frequencies similar to zero-field conditions. The (6,6) arrays simulations demonstrated that there is a friction effect, when the nanotubes are closely packed, which retards the movement of the individual water files.
ICHEC Project:Effects of electric and electromagnetic fields on nanoparticle-protein systems
Publication:The Journal of Chemical Physics, 131, 114508
URL: http://doi.org/10.1063/1.3227042
Status: Published

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