title: The lanthanide cations as probes in biological systems. Proton relaxation enhancement studies for model systems and lysozyme.
mesh_terms: D000085:Acetates; D004578:Electron Spin Resonance Spectroscopy; D005063:Europium; D005682:Gadolinium; D006018:Glycols; D007477:Ions; D007700:Kinetics; D009682:Magnetic Resonance Spectroscopy; D008956:Models, Chemical; D009113:Muramidase; D011522:Protons; D012996:Solutions; D013696:Temperature; D014867:Water
chemical_list: D000085:Acetates; D006018:Glycols; D007477:Ions; D011522:Protons; D012996:Solutions; D014867:Water; D005063:Europium; D005682:Gadolinium; D009113:Muramidase