Xm. Li et al., INTERACTION OF LA3-RAMAN SPECTROSCOPY( AND CHOLESTEROL WITH DIPALMITOYLPHOSPHATIDYLGLYCEROL BILAYERS BY FT), Thin solid films, 285, 1996, pp. 762-764
The interaction of La3+ and cholesterol with the negatively charged ph
ospholipid dipalmitoylphosphatidylglycerol bilayers was studied by Fou
rier transform-Raman spectroscopy. La3+ was shown to increase intercha
in order and intermolecular ordering of the lipid lattice, cholesterol
exhibited less of an effect, the La3+-DPPG-cholesterol complex was mo
re ordered than cholesterol=DPPG nd less ordered than La3+-DPPG comple
xes, cholesterol modulates the order/disorder parameters of DPPG bilay
ers.