ListarUJI: Investigación por tema "Positive ions"
Mostrando ítems 1-3 de 3
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Electrical pumping of potassium ions against an external concentration gradient in a biological ion channel
AIP Publishing (2013-07-22)We show experimentally and theoretically that significant currents can be obtained with a biological ion channel, the OmpF porin of Escherichia coli, using zero-average potentials as driving forces. The channel rectifying ... -
Intrinsic gas-phase reactivity toward methanol of trinuclear tungsten W3S4 complexes bearing W-X (X=Br, OH) groups
American Chemical Society (2008-11)Electrospray ionization (ESI) tandem mass spectrometry is used to investigate the gas-phase dissociation of trinuclear sulfide W3S4 complexes containing three diphosphane ligands and three terminal bromine atoms, namely, ... -
Ion selectivity of a biological channel at high concentration ratio: insights on small ion diffusion and binding
American Chemical Society (2009)The ionic selectivity of the bacterial porin OmpF has been investigated in several chloride salts of alkali metal cations under a wide range of concentration ratios. We report a novel way of studying the several factors ...