The interaction of weak electromagnetic fields (EMF) with living cells is a most important but still unresolved biophysical problem. For this interaction, thermal and other types of noise appear to cause severe restrictions in the action of weak signals on relevant components of the cell. A recently presented general concept of regulation of ion and substrate pathways through microvilli provide...

A MICROSCOPIC theory of the kaol ini te-water system is presented, based upon the assumption t ha t the clay-water interaction may be envisioned as par t ly hydrat ion of the exchangeable cations and par t ly adsorption by the oxygen and hydroxyl surfaces. The theory t reats exchangeable cation hydrat ion quantum-mechanically as an ion-dipole phenomenon and considers water adsorption by the min...

Pair association in Ionic Liquids is an important quantity that affects many of their physical and chemical properties. However, the association constant is a complex function of the component ions as well as of the solvent environment, and no single theory can compute or predict it with quantitative accuracy. In this work we analyze infinite-dilution association data from a number of recent co...

Mazzochi, C., D. J. Benos, and P. R. Smith. Interaction of epithelial ion channels with the actin-based cytoskeleton. Am J Physiol Renal Physiol 291: F1113–F1122, 2006. First published August 22, 2006; doi:10.1152/ajprenal.00195.2006.—The interaction of ion channels with the actin-based cytoskeleton in epithelial cells not only maintains the polarized expression of ion channels within specific ...

We present an analysis of the dynamics of ion-pairing of lithium fluoride (LiF) in aqueous solvent using both detailed molecular simulation as well as reduced models within a generalized Langevin equation (GLE) framework. We explored the sensitivity of the ion-pairing phenomena to the details of descriptions of molecular interaction, comparing two empirical potentials to explicit quantum based ...

A model for ionic solutions with an attractive short-range pair interaction between the ions is presented. The short-range interaction is accounted for by adding a quadratic nonlocal term to the Poisson-Boltzmann free energy. The model is used to study solvent effects in a planar electric double layer. The counterion density is found to increase near the charged surface, as compared with the Po...