Water-lipid interface in lipidic mesophases with excess water.

ABSTRACT: This study investigates the influence of excess water on the lipidic mesophase during the phase transition from diamond cubic phase (Pn3̄m) to reverse hexagonal phase (H_II). Using a combination of small angle X-ray scattering (SAXS), broadband dielectric spectroscopy (BDS), and Fourier transform infrared (FTIR) techniques, we explore the dynamics of lipids and their interaction with water during phase transition. Our BDS results reveal three relaxation processes originating from lipids, all of which exhibit a kink during the phase transition. With the excess water, these processes accelerate due to the plasticizing effect of water. Additionally, our results demonstrate that the headgroups in the H_II phase are more densely packed than those

SUBMITTER: Yao Y 

PROVIDER: S-EPMC10845009 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature