Preparation and characterization of KcsA ion channel inspired membrane (IMAGE)
Caption
a) Schematic illustration of ultrafluidic transport of specific K+ ions through the enzyme-gated KcsA channels in biological cell plasma membrane with ion screening and ultrafluidic transport properties; b) bioinspired membrane with defined ion channels for Zn2+ ion-sieving and ultrafluidic transport; c) ultrafluidic Zn2+ hopping path along bioinspired −ClO4 group-gated channels; d) synthesis of bioinspired channels by using a MOF-5 nanoporous material via a solvent-assisted linker exchange (SALE) process, by which −ClO4 groups are grafted onto the O-sites of the MOF-5 channels to realize expecting ion selectivity; e) electron density difference and electrostatic potential mapping of grafted MOF-ClO4 bioinspired channel structure.
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