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Updated: Sep 18, 2025

Ion-Exchange Membranes for the Fabrication of Reverse Electrodialysis Device
Published on: July 20, 2021
Universal Model for Ion Transport: Bridging The Goldman-Hodgkin-Katz Paradigm with Reverse Electrodialysis
1Ben-Gurion University of the Negev, Department of Mechanical Engineering, Beer-Sheva 8410501, Israel.
Abstract:
The Goldman-Hodgkin-Katz (GHK) theory has been the paradigm for ion transport in physiological systems for the past century. However, GHK incorrectly assumes a uniform electrical field, leading to several inconsistencies. We propose a new theory developed using methods from the reverse-electrodialysis (RED) community. Our theory, substantiated by simulations, provides expressions for all the main characteristics of ion transport and connects GHK to RED, providing a remarkably robust framework for (re-)interpreting ion transport experiments in any (living or inanimate) charge-selective system.
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