Journal ArticleDOI
Effect of density on configurational properties of long-chain molecules using a Monte Carlo method
S. G. Whittington,D. Chapman +1 more
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TLDR
In this paper, a theoretical model of a simple analogue of a system of hydrocarbon chains in which one end of each chain is fixed in a plane and in which the chains can coil and interact with each other is presented.Abstract:
A theoretical model system has been devised to act as a simple analogue of a system of hydrocarbon chains in which one end of each chain is fixed in a plane and in which the chains can coil and interact with each other. Using a Monte Carlo method, the end-to-end distance and other properties are determined as a function of their density using two different potential functions and restricting the chains to a two-dimensional hexagonal lattice. The possible relevance of the results obtained from this theoretical model to real physical situations, such as the configurations of chains in a monolayer, in bilayers and in biological membranes, is discussed.read more
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Phase transitions and fluidity characteristics of lipids and cell membranes.
TL;DR: It is stated that the combination of flow and lability with a preferred and relatively stable molecular orientation – that makes the mesomorphic (i.e. liquid crystal) phase uniquely appropriate to the structure of protoplasm and living tissue.
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Electrochemistry of redox-active self-assembled monolayers
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Biomembrane Phase Transitions STUDIES OF LIPID-WATER SYSTEMS USING DIFFERENTIAL SCANNING CALORIMETRY
TL;DR: Differential scanning calorimetry has been applied to the study of some simple model biomembranes and the endothermic phase transitions which they exhibit when transforming from the gel to liquid crystal phase have been studied, showing that clusters of gel and liquid crystalline lipids can coexist within this temperature range.
Journal ArticleDOI
Molecular interactions in mixed lecithin systems.
TL;DR: Monolayer results indicate that the molecular area occupied by the higher melting component becomes larger because of the increased configurational freedom of its chains, particularly with respect to the effect of temperature on lipids and membranes.