منابع مشابه
Interface free energy
" Interface free energy is the contribution to the free energy of a system due to the presence of an interface separating two coexisting phases at equilibrium ". It is also called interfacial free energy or surface tension. The content of the article is 1) the definition of the interface free energy from first principles of statistical mechanics; 2) a detailed exposition of its thermodynamical ...
متن کاملEffective string theory description of the interface free energy
We compare the predictions of the Nambu-Goto effective string model with a set of high precision Monte Carlo results for interfaces with periodic boundary conditions in the 3D Ising model. We compute the free energy in the covariant gauge exactly, up to the inclusion of the Liouville mode. The perturbative expansion of this result agrees both with the result evaluated several years ago by Dietz...
متن کاملDiffused Solute-Solvent Interface with Poisson-Boltzmann Electrostatics: Free-Energy Variation and Sharp-Interface Limit
A phase-field free-energy functional for the solvation of charged molecules (e.g., proteins) in aqueous solvent (i.e., water or salted water) is constructed. The functional consists of the solute volumetric and solute-solvent interfacial energies, the solute-solvent van der Waals interaction energy, and the continuum electrostatic free energy described by the Poisson-Boltzmann theory. All these...
متن کاملFree energy of ion hydration: Interface susceptibility and scaling with the ion size.
Free energy of solvation of a spherical ion in a force-field water is studied by numerical simulations. The focus is on the linear solvation susceptibility connecting the linear response solvation free energy to the squared ion charge. Spherical hard-sphere solutes, hard-sphere ions, and Kihara solutes (Lennard-Jones modified hard-sphere core) are studied here. The scaling of the solvation susc...
متن کاملFree energy of burying hydrophobic residues in the interface between protein subunits.
We have obtained an experimental estimate of the free energy change associated with variations at the interface between protein subunits, a subject that has raised considerable interest since the concept of accessible surface area was introduced by Lee and Richards [Lee, B. & Richards, F. M. (1971) J. Mol. Biol. 55, 379-400]. We determined by analytical ultracentrifugation the dimer-tetramer eq...
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ژورنال
عنوان ژورنال: Scholarpedia
سال: 2010
ISSN: 1941-6016
DOI: 10.4249/scholarpedia.9218