From the microscopic to the mesoscopic properties of lyotropic reverse hexagonal liquid crystals

Langmuir : the ACS Journal of Surfaces and Colloids
Dima LibsterNissim Garti

Abstract

In the present study we aimed to explore a correlation between the microstructural properties of the lyotropic reverse hexagonal phase (HII) of the GMO/tricaprylin/phosphatidylcholine/water system and its mesoscopic structure. The mesoscopic organization of discontinuous and anisotropic domains was examined, in the native state, using environmental scanning electron microscopy. The topography of the HII mesophases was imaged directly in their hydrated state, as a function of aqueous-phase concentration and composition, when a proline amino acid was solubilized into the systems as a kosmotropic (water-structure maker) guest molecule. The domain structures of several dozen micrometers in size, visualized in the environmental scanning electron microscopy, were found to possess fractal characteristics, indicating a discontinuous and disordered alignment of the corresponding internal water rods on the mesoscale. On the microstructural level, SAXS measurements revealed that as water content (Cw) increases the characteristic lattice parameter of the mesophases increases as well. Using the water concentration as the mass measure of the mixtures, a scaling relationship between the lattice parameter and the concentration was found to obe...Continue Reading

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Citations

Dec 29, 2013·Journal of Colloid and Interface Science·Abdelkader MouriPhilippe Legrand
Mar 1, 2012·The Journal of Chemical Physics·Vesselin KolevNissim Garti
Jul 19, 2014·International Journal of Pharmaceutics·Abdelkader MouriPhilippe Legrand
Dec 25, 2010·The Journal of Physical Chemistry. B·Ben AchraiNissim Garti
Sep 10, 2011·The Journal of Physical Chemistry. B·Liron Bitan-CherbakovskyNissim Garti
Feb 9, 2012·The Journal of Physical Chemistry. B·Liron Bitan-CherbakovskyNissim Garti
Feb 19, 2013·Journal of Colloid and Interface Science·Tehila MishrakiNissim Garti
Feb 22, 2012·Colloids and Surfaces. B, Biointerfaces·Nissim GartiAbraham Aserin
Feb 15, 2011·Journal of Colloid and Interface Science·Dima LibsterNissim Garti
Oct 20, 2009·Colloids and Surfaces. B, Biointerfaces·Tehila MishrakiNissim Garti
Aug 18, 2009·Colloids and Surfaces. B, Biointerfaces·Dima LibsterNissim Garti
Sep 15, 2009·Colloids and Surfaces. B, Biointerfaces·Tehila MishrakiNissim Garti
Nov 4, 2008·International Journal of Pharmaceutics·Dima LibsterNissim Garti
Aug 30, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·Grace TanArijit Bose
Oct 27, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Liron Bitan-CherbakovskyNissim Garti
Sep 3, 2009·The Journal of Physical Chemistry. B·Paul Ben IshaiYuri Feldman
Feb 24, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Liron Bitan-CherbakovskyNissim Garti
Feb 15, 2011·Langmuir : the ACS Journal of Surfaces and Colloids·Evangelia D TzikaAristotelis Xenakis
Sep 23, 2010·The Journal of Physical Chemistry. B·Paul Ben IshaiYuri Feldman

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