Relaxation studies of ion transport systems in lipid bilayer membranes

Läuger, P.; Benz, R.; Stark, G.; Bamberg, E.; Jordan, P. C.; Fahr, A.; Brock, W.

doi:10.1017/S003358350000247X

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Relaxation studies of ion transport systems in lipid bilayer membranes

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Läuger, P., Benz, R., Stark, G., Bamberg, E., Jordan, P. C., Fahr, A., et al. (1981). Relaxation studies of ion transport systems in lipid bilayer membranes. Quarterly Reviews of Biophysics, 14(4), 513-598. doi:10.1017/S003358350000247X.

Cite as: https://hdl.handle.net/21.11116/0000-000A-CE0A-4

Abstract

Relaxation techniques have been widely used in kinetic studies of chemical reactions in homogeneous solution (Eigen DeMayer, 1963). The principle of this method is well known: an external variable such as temperature or pressure is suddenly changed and the time course of a state parameter of the system such as concentration is recorded as it approaches a new steady value. Relaxation techniques can also be used for studying the rate of elementary processes in membranes. This method has proved particularly useful for the investigation of ion transport systems (ion carriers, channels, pumps) in artificial planar bilayer membranes. In this review we describe different relaxation techniques which have been developed for this purpose during the last years, as well as applications to a number of ion transport systems.