Lateral diffusion of molecules in two-component lipid bilayer: A Monte Carlo simulation study

Article Abstract:

A study on the equilibrium lateral diffusion of intrinsic molecules in an equimolar DMPC/DSPC mixture is simulated by using a thoroughly tested two-state model of two-component phospholipid bilayers. The calculations with respect to the excess heat capacity function, the most frequent center-to-center distances between DSPC clusters, and the fractal dimensions of gel clusters can be successfully carried out with the help of the model.

Analysis, Simulated annealing (Mathematics), Diffusion bonding (Metals)

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Molecular dynamics studies of the molecular structure and interactions of cholesterol superlattices and random domains in an unsaturated phosphatidylcholine bilayer membrane

Article Abstract:

The effects of the molecular organization of cholesterol-superlattice versus random-on the structure of and interactions between lipids and water in lipid bilayers of cholesterol and 1-palmitoyl-2-oleoylphosphatidylcholine (cholesterol/POPC) at a fixed cholesterol mole fraction of 0.40 are studied. Results reveal that the lateral distribution of cholestrol in the superlattice bilayer is more stable than in the random bilayer.

Molecular structure, Superlattices as materials, Superlattices

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Nonequilibrium lipid domain growth in the gel-fluid two-phase region of a DC16PC-DC22PC lipid mixture investigated by Monte Carlo computer Simulation, FT-IR, and Fluorescence Spectroscopy

Article Abstract:

The effects of the nonequilibrium ordering process on lipid domain formation and lipid organization in the gel-fluid phase separated region of the binary lipid mixture is studied. The results indicate that long-living nonequilibrium domains can exist in lipid membranes after thermodynamic, environmental, or compositional perturbations.

Thermodynamics, Monte Carlo method, Monte Carlo methods, Fluorescence spectroscopy

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