Biological potassium ion channels allow selective permeation of larger K+ (ionic radius of 1.3 Å) over smaller Na+ (1.0 Å) with selectivity ratio over 1,000-fold. For decades, scientists have long sought to mimic these marvels in artificial systems, but have fallen far short of matching the exquisite ion discrimination of natural protein channels.
retrieved 31 October 2023 from https://phys.org/news/2023-10-unprecedented-artificial-potassium-channels-mimic.html
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