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  • Title: Simulation of domain formation in DLPC-DSPC mixed bilayers.
    Author: Faller R, Marrink SJ.
    Journal: Langmuir; 2004 Aug 31; 20(18):7686-93. PubMed ID: 15323520.
    Abstract:
    Binary mixtures of two phosphatidylcholines of different chain lengths are simulated in the bilayer state. We find a phase transition between a liquid state and a gel state at all concentrations. This phase transition is characterized by the area per lipid headgroup, the order parameter, and a change in dynamics. At concentrations with a majority of the longer lipid, we find phase separation into a gel and a liquid state in a small temperature window. This leads to a strong dynamic heterogeneity. Experimental phase transition temperatures are reproduced semiquantitatively. We see a clear shift in the phase transition to higher temperatures with increasing concentration of the longer lipid.
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