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Oct 31, 2023, 4:19 pm159 pts
PHYSorg
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…
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