Control of Lipid Self-Assembled Structures & Assessment of Lipid Membrane Fluidity by Fluorescence Spectroscopy

It is well known that lipids form various kinds of self-assembled structures. First, lipid nanoparticles dispersed with hydroxy propyl methyl cellulose acetate succinate (HPMCAS) were introduced. The influence of polymers on the lipid self-assembled structures was evaluated by small and wide angle X-ray scattering (SWAXS). Self-assembled structures containing higher alcohols have attracted much attention in the cosmetic industry. The α-form hydrated crystalline phase (often called α-gel) is one of the hydrated crystalline phases which can be exhibited by surfactants and higher alcohols. As surfactants in this study, an ionic complex or a silicone type were used. This review also reports the lipid membrane fluidity by using fluorescence spectroscopy.