Study of water diffusion on single-supported bilayer lipid membranes by quasielastic neutron scattering

M. Bai, A. Miskowiec, F. Y. Hansen, H. Taub, T. Jenkins, M. Tyagi, S. O. Diallo, E. Mamontov, K. W. Herwig, S. -K. Wang

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    Abstract

    High-energy-resolution quasielastic neutron scattering has been used to elucidate the diffusion of water molecules in proximity to single bilayer lipid membranes supported on a silicon substrate. By varying sample temperature, level of hydration, and deuteration, we identify three different types of diffusive water motion: bulk-like, confined, and bound. The motion of bulk-like and confined water molecules is fast compared to those bound to the lipid head groups (7-10 H2O molecules per lipid), which move on the same nanosecond time scale as H atoms within the lipid molecules. Copyright (C) EPLA, 2012

    Original languageEnglish
    JournalEPL
    Volume98
    Issue number4
    Pages (from-to)-
    ISSN0295-5075
    DOIs
    Publication statusPublished - 2012

    Keywords

    • PHYSICS,
    • DEUTERON MAGNETIC-RESONANCE
    • MOLECULAR-DYNAMICS
    • HYDRATION

    Cite this

    Bai, M., Miskowiec, A., Hansen, F. Y., Taub, H., Jenkins, T., Tyagi, M., Diallo, S. O., Mamontov, E., Herwig, K. W., & Wang, S. -K. (2012). Study of water diffusion on single-supported bilayer lipid membranes by quasielastic neutron scattering. EPL, 98(4), -. https://doi.org/10.1209/0295-5075/98/48006