Grand canonical Monte Carlo simulation of hydration forces between nonorienting and orienting structureless walls
- 1 October 2002
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 117 (13), 6271-6280
- https://doi.org/10.1063/1.1504436
Abstract
The hydration forces between structureless model walls were calculated using the grand canonical Monte Carlo technique. Several wall–water interaction potentials were tried, including both orientation independent and strongly directional potentials which reflected the preference of water for tetrahedral hydrogen bonding coordination. Primary attention was given to large wall-to-wall separations (4 nm and more), where the oscillations of the hydration force due to layering effects decayed. The hydration force was found to be highly sensitive to the presence of orientation-dependent terms in the wall–water interaction potential. Strongly directional potentials led to hydrophobic attraction of the walls even when the wall–water interaction was substantially stronger than the water–water interaction. The reason had to do with the orientational ordering induced by the walls in the adjacent water layers.Keywords
This publication has 27 references indexed in Scilit:
- Long-Ranged Attractive Forces between Neutral Surfaces Due to Amphiphile AggregationThe Journal of Physical Chemistry B, 1998
- Boundary condition effects in simulations of water confined between planar wallsMolecular Physics, 1996
- Computer Simulations of Water between Hydrophobic Surfaces: The Hydrophobic ForceThe Journal of Physical Chemistry, 1996
- Role of hydration and water structure in biological and colloidal interactionsNature, 1996
- Simulations in planar slits at constant chemical potentialThe Journal of Chemical Physics, 1994
- Electrostatic correlation forces between surfaces with surface specific ionic interactionsThe Journal of Chemical Physics, 1989
- Grand-canonical ensemble Monte Carlo study of dense liquidMolecular Physics, 1987
- Monte Carlo simulation of hydrophobic interactionThe Journal of Chemical Physics, 1987
- Comparison of simple potential functions for simulating liquid waterThe Journal of Chemical Physics, 1983
- Physical forces due to the state of water bounding biological materials: Some lessons for the design of colloidal sytemsAdvances in Colloid and Interface Science, 1982