Prediction of partition coefficients by multiscale hybrid atomic-level/coarse-grain simulations
Michel, J., Orsi, M. and Essex, J.W. (2008) Prediction of partition coefficients by multiscale hybrid atomic-level/coarse-grain simulations. Journal of Physical Chemistry B, 112, (3), 657-660. (doi:10.1021/jp076142y).
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Description/Abstract
Coarse-grain models are becoming an increasingly important tool in computer simulations of a wide variety of molecular processes. In many instances it is, however, desirable to describe key portions of a molecular system at the atomic level. There is therefore a strong interest in the development of simulation methodologies that allow representations of matter with mixed granularities in a multiscale fashion. We report here a strategy to conduct mixed atomic-level and coarse-grain simulations of molecular systems with a recently developed coarse-grain model. The methodology is validated by computing partition coefficients of small molecules described in atomic detail and solvated by water or octane, both of which are represented by coarse-grain models. Because the present coarse-grain force field retains electrostatic interactions, the simplified solvent particles can interact realistically with the all-atom solutes. The partition coefficients computed by this approach rival the accuracy of fully atomistic simulations and are obtained at a fraction of their computational cost. The present methodology is simple, robust and applicable to a wide variety of molecular systems.
| Item Type: | Article |
|---|---|
| ISSNs: | 1520-6106 (print) |
| Related URLs: | |
| Keywords: | free-energy, water models, , molecular-dynamics,soft sticky dipole, , force-field, side-chain analogs, liquid water, cyclohexane, solvation, proteins |
| Subjects: | Q Science Q Science > QD Chemistry |
| Divisions: | University Structure - Pre August 2011 > School of Chemistry |
| Item ID: | 54484 |
| Date Deposited: | 31 Jul 2008 |
| Last Modified: | 01 Jun 2011 04:48 |
| Contributors: | Michel, J. (Author) Orsi, M. (Author) Essex, J.W. (Author) |
| Date: | 2008 |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/54484 |
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