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Title: Theory of the asymmetric ripple phase in achiral lipid membranes
Authors: Kamal, Md. Arif
Pal, Antara
Raghunathan, V.A.
Rao, Madan
Keywords: Membranes
Continuum models
Liquid crystal structure
Issue Date: Aug-2011
Publisher: IOP Publishing Ltd.
Citation: Europhysics Letters, 2011, Vol.95, p48004
Abstract: We present a phenomenological theory of phase transitions in achiral lipid membranes in terms of two coupled order parameters—a scalar order parameter describing lipid chain melting, and a vector order parameter describing the tilt of the hydrocarbon chains below the chain-melting transition. Existing theoretical models fail to account for all the observed features of the phase diagram, in particular the detailed microstructure of the asymmetric ripple phase lying between the fluid and the tilted gel phase. In contrast, our two-component theory reproduces all the salient structural features of the ripple phase, providing a unified description of the phase diagram and microstructure.
Description: Open Access.
ISSN: 0295-5075
1286-4854 (Online)
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Copyright: 2011 IOP Publishing Ltd.
Appears in Collections:Research Papers (SCM)

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