Collective Diffusion Model for Water Permeation through Microscopic Channels
- 24 November 2004
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 93 (22), 224501
- https://doi.org/10.1103/physrevlett.93.224501
Abstract
Water permeation through nanometric channels, generally a coupled many-body process, is described in this study by a single collective coordinate. A collective diffusion model is proposed in which water movement at equilibrium is characterized as an unbiased diffusion along this coordinate and water transport in the presence of a chemical potential difference is described as one-dimensional diffusion in a linear potential. The model allows one to determine the osmotic permeability of a water channel from equilibrium simulations. DOI: http://dx.doi.org/10.1103/PhysRevLett.93.224501 Received 1 April 2004Published 24 November 2004© 2004 The American Physical SocietyKeywords
This publication has 16 references indexed in Scilit:
- Theory and Simulation of Water Permeation in Aquaporin-1Biophysical Journal, 2004
- Water and Proton Conduction through Carbon Nanotubes as Models for Biological ChannelsBiophysical Journal, 2003
- Osmotic water transport through carbon nanotube membranesProceedings of the National Academy of Sciences of the United States of America, 2003
- Single-File Transport of Water Molecules through a Carbon NanotubePhysical Review Letters, 2002
- Pressure-Induced Water Transport in Membrane Channels Studied by Molecular DynamicsBiophysical Journal, 2002
- Control of the Selectivity of the Aquaporin Water Channel Family by Global Orientational TuningScience, 2002
- Water conduction through the hydrophobic channel of a carbon nanotubeNature, 2001
- NAMD2: Greater Scalability for Parallel Molecular DynamicsJournal of Computational Physics, 1999
- Comparison of simple potential functions for simulating liquid waterThe Journal of Chemical Physics, 1983
- Statistical MechanicsPhysics Today, 1977