The nanoscopic submyelin space mediates efficient K+ uptake and shapes nodal action potentials
Tim M. Kamsma, René van Roij, Cristian Spitoni, Maarten H. P. Kole
The paper develops a finite element model to study K+ dynamics and action potential behavior at the node of Ranvier, revealing how periaxonal K+ buffering enables high-frequency conduction.
bioRxiv · Sep 24, 2026 · PreprintNeuroscience