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Title: Lβ′→Lc′ phase transition in phosphatidylcholine lipid bilayers: A disorder-order transition in two dimensions
Authors: Raghunathan, V.A.
Katsaras, J.
Issue Date: Oct-1996
Publisher: The American Physical Society
Citation: Physical Review E, 1996, Vol.54, p4446-4449
Abstract: The structure of the Lc′ phase exhibited by hydrated dipalmitoylphosphatidylcholine (DPPC) was recently determined by Raghunathan and Katsaras [Phys. Rev. Lett. 74, 4456 (1995)] from x-ray diffraction studies on oriented multibilayers. Here, we reanalyze the powder diffraction data reported in the literature on a number of hydrated lipids possessing the phosphatidylcholine headgroup. As in DPPC, the Lc′ phase in all of these systems is found to be characterized by two-dimensional ordering of the lipid molecules on a superlattice of the hydrocarbon chain lattice. We also discuss the influence of headgroup interactions on the structure of this phase.
ISSN: 1550-2376 (online)
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Copyright: (1996) by the American Physical Society
Appears in Collections:Research Papers (SCM)

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