Subgel transition in diluted vesicular DODAB dispersions
We have characterized the lipid chain freezing in dilute aqueous vesicle dispersions of the cationic lipid dioctadecyldimethylammonium bromide (DODAB) using wide and small angle X-ray scattering, solid state NMR, DSC, turbidity and density measurements. The lipids freeze in two steps. Above 40 degrees C the chains are fluid and the lipids are in a so-called liquid-crystalline state. When cooling b