Abstract
An enzymic model membrane capable of simulating such permeability characteristics of chemically excitable membranes as generation of an action potential-like overshoot, selectivity over permeants, and saturation and hysteresis of transmembrane flow is constructed by means of coupling a nonlinear, interfacial flow regulating the attachment of permeants to the surface of the oligomeric membrane with a transmembrane allosteric conversion flow recently formulated by Blumenthal. Periods of sustained oscillation, as well as the predicted values of threshold, and height of an action potential-like overshoot are calculated for different choices of external and internal parameters of the membrane.
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