Weakened hydrogen bonds in water confined between lipid bilayers: the existence of a long-range attractive hydration force.
Stronger or weaker H-bonds? H-bonds in interlamellar water in partially hydrated lipid multibilayers are stronger with respect to bulk water. In contrast, the authors show by ATR-FTIR spectroscopy that the H-bonds are weaker in multibilayers in excess water (see spectra). This finding is of biological relevance for water-mediated phenomena in membranes.
Arsov
Zoran
Z
Department of Solid State Physics, Laboratory of Biophysics, Jozef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia. zoran.arsov@ijs.si
Rappolt
Michael
M
Grdadolnik
Joze
J
D006860:Hydrogen Bonding; D008051:Lipid Bilayers / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D014867:Water / Q000737:chemistry*
D008051:Lipid Bilayers; D014867:Water