Diffusion of calcium ions in retinal rods. A theoretical calculation.
Open Access
- 1 April 1981
- journal article
- research article
- Published by Rockefeller University Press in The Journal of general physiology
- Vol. 77 (4) , 475-487
- https://doi.org/10.1085/jgp.77.4.475
Abstract
The Fick diffusion equation is combined with the Langmuir adsorption isotherm and the relevant equations from the Gouy-Chapman theory of the electrical diffuse double layer to demonstrate that the effective diffusion coefficient of Ca ions, both in the cytoplasm of vertebrate rod outer segment and within the aqueous space bounded by the disk membrane, should be reduced by a factor of 10-100 because these ions adsorb to phospholipids present in the disk membrane.This publication has 34 references indexed in Scilit:
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