Journal
PHYSICAL REVIEW LETTERS
Volume 93, Issue 22, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.93.224501
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Funding
- NCRR NIH HHS [P41-RR05969] Funding Source: Medline
- NIGMS NIH HHS [1 R01 GM067887-01] Funding Source: Medline
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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.
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