Phase behaviour of model stratum corneum lipid mixtures: an infrared spectroscopy investigation
Article Abstract:
A study has shown that the stratum corneum skin layer as modeled has polymorphism which goes from crystalline domains having heterogeneous bilipid composition and orthorhombic chain packing to a fluid and homogeneous phase. Phase behavior of model stratum corneum lipid mixtures has been studied by use of infrared spectroscopy. Mixing and structural properties were investigated. The model was an equimolar mixture of type III ceramides, perdeuterated palmitic acid, and cholesterol. In some mixtures sphingomyelin, a ceramide precursor, was used instead of ceramides. Binary mixtures were also studied.
Publication Name: Canadian Journal of Chemistry
Subject: Chemistry
ISSN: 0008-4042
Year: 1998
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2H NMR studies of dipalmitoylphosphatidylcholine and dipalmitoylphosphatidylcholine--cholesterol bilayers at high pressure
Article Abstract:
It appears that pressure does not bring on substantial repositioning of cholesterol bilayers in a range recently studied. It seems that cholesterol reduces sensitivity of bilayer properties to pressure. Wideline deuterium NMR studies of dipalmitoylphosphatidylcholine and dipalmitoylphosphatidylcholine have been carried out to investigate cholesterol bilayers under high pressure.
Publication Name: Canadian Journal of Chemistry
Subject: Chemistry
ISSN: 0008-4042
Year: 1998
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Evidence for room temperature mesomorphism in a mixed-valent diruthenium(II, III) quintapalmitoleate polymer
Article Abstract:
Evidence that there is room-temperature mesomorphism in a mixed-valent diruthenium(II, III) quintapalmitoleate polymer has been found. No others reports have been made of room-temperature mesomorphism in a mixed-valent metallomesogen. A solid-to-liquid crystal transition was found at 128 degrees C after synthesis and characterization were carried out.
Publication Name: Canadian Journal of Chemistry
Subject: Chemistry
ISSN: 0008-4042
Year: 1998
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