Interaction of Local Anaesthetics and Calcium with Erythrocyte Membranes
At present there is little definitive information about the way in which the components of cell membranes are organized, and new experimental approaches to the problem are required. Recent work has been aimed at detecting perturbations in the structure of cell membranes by physical techniques; for example, Cohen, Keynes & Hille (1968) have followed changes in the birefringence and light scattering of nerve membranes during the action potential. Alternatively, probe molecules with suitable spectroscopic properties have been used to report indirectly on the perturbations which they sense within the membrane. These probes may also be expected to provide information about the structure in which they are inserted. Here we describe two probe techniques which make use of magnetic resonance spectroscopy to detect changes in molecular motions within the membrane. Although they depend on quite distinct magnetic resonance phenomena, they provide directly comparable data.
KeywordsNuclear Magnetic Resonance Electron Spin Resonance Partition Coefficient Electron Spin Resonance Spectrum Benzyl Alcohol
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