“…Furthermore, many of these products are thermodynamically unstable though they are to be equipped with sufficiently long temporal stability. Here, we have investigated structural details of cationic vesicles prepared from TEQ surfactant comprising mono-, di-, and tri-ester components, in which we use cryogenic transmission electron microscopy cryo-TEM 28 30 , small angle X-ray scattering SAXS 15,16,20,25,26,27 , and electron spin resonance ESR spectroscopy 31 39 . The major component of the TEQ surfactant is di alkyl fatty ester quaternary ammonium methosulfate.…”