title: 1/f noise in membranes.
abstract: The present situation of 1/f noise in the passage of ions across membranes is examined. A survey of biological and synthetic membranes is given at which a 1/f frequency dependence has been observed in the spectrum of voltage or current fluctuations. Empirical relations and theories of 1/f noise in membranes are critically discussed.
mesh_terms: D001693:Biological Transport, Active; D002462:Cell Membrane / Q000502:physiology*; D004058:Diffusion; D004594:Electrophysiology; D007473:Ion Channels; D008564:Membrane Potentials; D008567:Membranes, Artificial; D008954:Models, Biological; D009413:Nerve Fibers, Myelinated / Q000502:physiology; D011188:Potassium / Q000378:metabolism; D012964:Sodium / Q000378:metabolism; D013997:Time Factors
chemical_list: D007473:Ion Channels; D008567:Membranes, Artificial; D012964:Sodium; D011188:Potassium