Molecular simulation of adsorption from dilute solutions

• Authors: Werner Billes , Rupert Tscheliessnig , Johann Fischer
• Languages of publication: EN

Abstracts

EN

Adsorption of biomolecules on surfaces is a perennial and general challenge relevant to many fields in biotechnology. A change of the Helmholtz free energy ΔA takes place when a molecule becomes adsorbed out of a bulk solution. The purpose of our investigations is to explore routes for the calculation of ΔA by molecular simulations. ΔA can be obtained both by integration over the mean force on a molecule and via the local density. It turns out that the route via the potential of mean force prevails over the latter due to better consistency. In this work we present results for systems of 1-centre and 2-centre Lennard-Jones mixtures at a 9/3 Lennard-Jones wall.

Keywords

EN

dilute solutions; potential of mean force; adsorption; change of free energy; molecular simulation

• Journal: Acta Biochimica Polonica
• Year: 2005
• Volume: 52
• Issue: 3
• Pages: 685-689

Dates

published

2005

received

2005-03-15

revised

2005-06-20

accepted

2005-07-07

Contributors

author

Werner Billes

• Institut für Verfahrens- und Energietechnik, Universität für Bodenkultur, Vienna, Austria

author

Rupert Tscheliessnig

• Institut für Verfahrens- und Energietechnik, Universität für Bodenkultur, Vienna, Austria

author

Johann Fischer

• Institut für Verfahrens- und Energietechnik, Universität für Bodenkultur, Vienna, Austria

References

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