Journal article
Study of water diffusion on single-supported bilayer lipid membranes by quasielastic neutron scattering
University of Missouri1
Physical and Biophysical Chemistry, Department of Chemistry, Technical University of Denmark2
Department of Chemistry (IK), Technical University of Denmark3
National Institute of Standards and Technology4
University of Maryland, College Park5
Oak Ridge National Laboratory6
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
Language: | English |
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Year: | 2012 |
Pages: | 48006 |
ISSN: | 12864854 and 02955075 |
Types: | Journal article |
DOI: | 10.1209/0295-5075/98/48006 |