Abstract
Molecular aggregates formed in aqueous mixtures of polyoxyethylene type nonionic surfactants (POE) and phosphatidylcholines (PC) were investigated using several POE species with different oxyethylene chain lengths as well as PC species with different acyl chain lengths. The mixtures assume three main aggregation forms, mixed micelles, vesicles, and oil droplets, depending on the composition and temperature. The temperature corresponding to the boundary between the mixed micelle region and the oil droplet region shows a strong dependence on the POE species, reflecting the clouding temperature of the surfactants. On the other hand, the temperature at which the reversible transformation occurs between mixed micelles and vesicles is rather insensitive to the POE species, but is affected remarkably by the lipid acyl chain length. This suggests that the temperature-induced transformation from mixed micelles to vesicles is triggered by the conformational order-disorder transition of the lipid acyl chain.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
