title: 13-C NMR investigation of phospholipid membranes with the aid of shift reagents.
abstract: 13-C NMR spectra of sonicated phospholipid dispersions have been investigated with the aid of paramagnetic ions (Pr-3+) as shift reagents. This method permits discrimination between the outer and the inner surfaces of the vesicular membrane and gives a larger variety of signals than 1-H NMR. The lanthanide induced shifts have been found to depend on other ions present and on the lipid composition of the membrane.
mesh_terms: D002247:Carbon Isotopes; D008081:Liposomes; D009682:Magnetic Resonance Spectroscopy; D008567:Membranes, Artificial; D008968:Molecular Conformation; D010713:Phosphatidylcholines; D010714:Phosphatidylethanolamines; D010716:Phosphatidylinositols; D010718:Phosphatidylserines
chemical_list: D002247:Carbon Isotopes; D008081:Liposomes; D008567:Membranes, Artificial; D010713:Phosphatidylcholines; D010714:Phosphatidylethanolamines; D010716:Phosphatidylinositols; D010718:Phosphatidylserines