Our understanding of ion permeation through K+ channels, and by extension through other channels, is advancing rapidly. New structural studies, together with computer simulations, have provided profound insights into ion conduction mechanisms.
Sansom, M. S. P., & Shrivastava, I. H. (2002, January 22). Ion channels: Frozen motion. Current Biology. Cell Press. https://doi.org/10.1016/S0960-9822(01)00676-5