title: EPR determination of membrane potentials.
mesh_terms: D002463:Cell Membrane Permeability; D004578:Electron Spin Resonance Spectroscopy; D006863:Hydrogen-Ion Concentration; D007425:Intracellular Membranes / Q000502:physiology; D008564:Membrane Potentials; D008566:Membranes / Q000502:physiology*; D008954:Models, Biological; D010786:Photoreceptor Cells; D013113:Spin Labels; D013499:Surface Properties
chemical_list: D013113:Spin Labels