polar liquid Archive

  • Talk: water as a segnetoelectric, anomalous properties of polar liquids and interactions at nm-scales

    Talk: water as a segnetoelectric, anomalous properties of polar liquids and interactions at nm-scales

    The talk “Water as a segnetoelectric, anomalous properties and interactions of molecular sized objects at nm-distances” (in Russian). The talk was a part of IAChPhys seminar held at the Institute of Molecular Physics, Russian Research Center “Kurchatov Institute”. The talk in part mirrored the last...

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  • Three great ways to calculate Born radii beyond the Coulomb Field Approximation

    Three great ways to calculate Born radii beyond the Coulomb Field Approximation

    There is no need to explain how important are electrostatics interactions in Biology. Unfortunately electrostatics forces are long range and the interactions led by the interaction of molecular charges with each other and the charges of the water molecules are hard to calculate fast and...

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  • Water polarization charges in Generalized Born models.

    Water polarization charges in Generalized Born models.

    Solvation energy is one of the major contribution to binding energy of a ligand to a biologically active protein and is the contribution mostly responsible for the protein selectivity. Although nothing can, probably, better approximate the interaction with water molecules than a sufficiently long molecular...

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  • The nature of phospholipid membranes repulsion at nm-distances

    The nature of phospholipid membranes repulsion at nm-distances

    Why hydrophilic membranes repel at small distances? We apply recently developed phenomenological theory of polar liquids to calculate the repulsive pressure between two hydrophilic membranes at nm-distances. We find that the repulsion does show up in the model and the solution to the problem fits...

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  • Molecular polarization on a polar liquid interface: the structure of a water surface

    Molecular polarization on a polar liquid interface: the structure of a water surface

    The orientations of water molecules within the liquid depend on interplay of long-range dipole-dipole interaction and short range hydrogen-bonding interactions. At room temperature water is in paraelectric (disordered) phase and thus average dipole moment of any large enough fraction of the liquid vanishes. This observation...

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