Zp. Zhang et al., LATTICE MODEL FOR HYDROGEN-BONDING AND HYDRATION IN PURE LIPID BILAYERS, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 47(5), 1993, pp. 3721-3729
We propose a model for phase transitions involving hydrogen bonding in
lipid bilayers. The model is an interacting model with five states on
each site of a two-dimensional square lattice. This model describes b
oth the hydrogen bonding network proposed for phosphatidylethanolamine
lipids by x-ray spectroscopy and its disruption by lipid-water intera
ctions. The phase transitions predicted by the model are identified by
use of numerical simulation in conjunction with recent extrapolation
and finite-size-scaling methods. The percolation properties were also
investigated, and it is found that the percolation exponents cannot be
described by random percolation theory. The relationship of the resul
ts to experiment and extensions of the model is discussed.