Comment on Tamagawa & Ikeda's reinterpretation of the Goldman-Hodgkin-Katz equation. Are transmembrane potentials caused by polarization?
Abstract
The emergence of electrical fields across biological membranes is central to our present understanding of biomembrane function. The most prominent example is the textbook model for the action potential that relies on transmembrane voltage and membrane permeability. In a recent article by Tamagawa & Ikeda , an important underlying concept, the Goldman-Hodgkin-Katz equation, has been challenged (Tamagawa & Ikeda. 2018, Eur. Biophys. J. doi: 10.1007/s00249-018-1332-0. This will be discussed below.
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