Lateral proton conduction along a lipid-water interface layer: a molecular mechanism for the role of hydration water molecules.
Using a fluorescence method applied to phospholipids spread at the air-water interface, we showed the occurrence of a localized proton pathway along the phospholipid polar heads. From the systematic investigation of this phenomenon, we conclude that the protons diffuse through a hydrogen bond network which is a matrix of hydrated polar head groups.
Prats
M
M
Centre de Recherche de Biochimie et de Génétique Cellulaires du CNRS, Toulouse, France.
Tocanne
J F
JF
Teissié
J
J
D005453:Fluorescence; D006860:Hydrogen Bonding; D007477:Ions; D008564:Membrane Potentials; D010743:Phospholipids; D011522:Protons; D013499:Surface Properties; D014867:Water
D007477:Ions; D010743:Phospholipids; D011522:Protons; D014867:Water