Modeling the phase behavior of the inverse hexagonal and inverse bicontinuous cubic phases in 2:1 fatty acid/phosphatidylcholine mixtures

Article Abstract:

Simplified models of the energetics of the inverse hexagonal and inverse bicontinuous cubic phases based on the competition between curvature elastic and molecular packing costs for amphiphiles are presented. Findings indicate that the energetic costs of molecular packing frustration in the H(sub II) phase is far greater than in the inverse bicontinuous cubics. The opposite is true for the curvature elastic costs, however. For the first time, it is shown that the phase transitions between the inverse bicontinuous cubic phases may be explained in terms of a change in their interfacial geometry.

Models, Fatty acids, Phase rule and equilibrium, Phase equilibrium

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Study of the dynamic structure of native and hydrophobized glucose oxidase by time-domain dielectric spectroscopy

Article Abstract:

Dynamic structures of native and hydrophobized glucose oxidase were studied by time-domain dielectric spectroscopy. The result reveals that the dielectric strengths for all relaxation processes, as well as the dipole moment and the molecular volume, were also larger for the modified glucose oxidase.

Science & research, Glucose, Dielectric relaxation, Dextrose

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Effect of penetration enhancers on the dynamic behavior of phosphatidylcholine headgroups in liposomes

Article Abstract:

A study of the effect of two skin penetration modulators on phosphatidylcholine bilayer vesicles uses time-domain dielectric spectroscopy.

Chemistry, Physical and theoretical, Physical chemistry, Liposomes

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