Surface characterization of phosphatidylethanolamine containing membranes

DISALVO, ANÍBAL E.; LAIRION, FABIANA; MARTINI, F; BOUCHET M.; ALMALECK HUGO S.; FRÍAS M.; DÍAZ S.; GORDILLO GABRIEL J.

Long Beach, California, USA.

Congreso; 52º Anual Meeting. Biophysical Society; 16th IUPAB International Biophysics Congress; 2008

Biophysical Society

Modifications in the hydration of the phosphates groups of different PE´s in comparison to PC´s with similar chain length were studied by FTIR. The shift in the band of the antisymmetric stretching of the phosphates was correlated with the changes in the dipole potential, surface charges and area per lipid. Cyclic voltammetry experiments at mercury-phospholipids-water interfaces were performed to analyze lateral head group and hydration interactions.