DLVO interaction energy between a sphere and a nano-patterned plate
DLVO interaction energy between a sphere and a nano-patterned plate
The potential energy of interaction between a microsphere and regular nano-topographies of varying shape and dimensions in 1:1 aqueous electrolyte is determined using the surface element integration (SEI) technique. The height and diameter of a square-lattice of cylindrical protruding and hollow asperities are varied to show the influence of these geometric parameters on the interaction energy. The simulation predicts that the nano-protrusions would decrease the energy barrier towards adhesion, which in turn would yield much larger deposition rates than predicted by the DLVO (Derjaguin-Landau-Verwey-Overbeek) theory for particles on smooth surfaces. In qualitative agreement with experimental observations, decreasing the radius of curvature of the protrusions results in lower energy barriers. Inversely, at 100 mM the presence of nano-pits on a surface would increase the height of the energy barrier, thus hampering particle deposition.
45-52
Martines, E
a39f0246-42e5-4958-8e10-0c9398a9057e
Csaderova, L
61643bb2-6b47-4217-a781-f237db2558d0
Morgan, H
de00d59f-a5a2-48c4-a99a-1d5dd7854174
Curtis, ASG
0cb53e34-1ffb-4652-a72e-7cbd6cca453f
Riehle, MO
232d3dc9-01a9-4e01-b60c-8078f3032d95
2008
Martines, E
a39f0246-42e5-4958-8e10-0c9398a9057e
Csaderova, L
61643bb2-6b47-4217-a781-f237db2558d0
Morgan, H
de00d59f-a5a2-48c4-a99a-1d5dd7854174
Curtis, ASG
0cb53e34-1ffb-4652-a72e-7cbd6cca453f
Riehle, MO
232d3dc9-01a9-4e01-b60c-8078f3032d95
Martines, E, Csaderova, L, Morgan, H, Curtis, ASG and Riehle, MO
(2008)
DLVO interaction energy between a sphere and a nano-patterned plate.
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 318, .
Abstract
The potential energy of interaction between a microsphere and regular nano-topographies of varying shape and dimensions in 1:1 aqueous electrolyte is determined using the surface element integration (SEI) technique. The height and diameter of a square-lattice of cylindrical protruding and hollow asperities are varied to show the influence of these geometric parameters on the interaction energy. The simulation predicts that the nano-protrusions would decrease the energy barrier towards adhesion, which in turn would yield much larger deposition rates than predicted by the DLVO (Derjaguin-Landau-Verwey-Overbeek) theory for particles on smooth surfaces. In qualitative agreement with experimental observations, decreasing the radius of curvature of the protrusions results in lower energy barriers. Inversely, at 100 mM the presence of nano-pits on a surface would increase the height of the energy barrier, thus hampering particle deposition.
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Published date: 2008
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Imported from ISI Web of Science
Organisations:
Nanoelectronics and Nanotechnology
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Local EPrints ID: 269208
URI: http://eprints.soton.ac.uk/id/eprint/269208
PURE UUID: e63c77a2-4785-4d26-8af0-06dade7becef
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Date deposited: 21 Apr 2010 07:46
Last modified: 09 Jan 2022 03:14
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Author:
E Martines
Author:
L Csaderova
Author:
H Morgan
Author:
ASG Curtis
Author:
MO Riehle
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