Search results for " Thermal behaviour"

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Lipid phase transition in saccharide-coated cholate-containing liposomes: coupling to the surrounding matrix.

2005

We performed FTIR measurements on cholate-containing liposomes (CCL) embedded in saccharide (trehalose or sucrose) matrixes with different contents of residual water. We obtained information on the CCL phase transition following the thermal evolution (310-70 K) of the IR spectrum of the carbonyl moieties of phospholipids in the frequency range 4225-4550 cm(-1). Furthermore, we simultaneously followed the thermal evolution of the water association band, which gave information on the behavior of the surrounding water-saccharide matrix. The analysis revealed a small sub-band of the water association band present in CCL but not in cholate-free liposomes, the thermal evolution of which is tightl…

Trehalose Liposomes Thermal behaviourSucroseSucroseSurface PropertiesLipid BilayersPhospholipidInfrared spectroscopydigestive systemPermeabilityPhase Transitionchemistry.chemical_compoundDrug Delivery Systemsstomatognathic systemHydrophilySpectroscopy Fourier Transform InfraredElectrochemistryGeneral Materials ScienceLipid bilayer phase behaviorFourier transform infrared spectroscopySpectroscopyPhospholipidsLiposomeChromatographydigestive oral and skin physiologyTemperatureTrehaloseWaterSurfaces and InterfacesCondensed Matter PhysicsTrehaloseSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)chemistryLiposomesCholatesHydrophobic and Hydrophilic InteractionsLangmuir : the ACS journal of surfaces and colloids
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