Face or Edge? Control of Molybdenite Surface Interactions with Divalent Cations
نویسندگان
چکیده
منابع مشابه
Divalent Cations
Inhibition by polyvalent cations is a defining characteristic of voltage-gated proton channels. The mechanism of this inhibition was studied in rat alveolar epithelial cells using tight-seal voltage clamp techniques. Metal concentrations were corrected for measured binding to buffers. Externally applied ZnCl 2 reduced the H 1 current, shifted the voltage-activation curve toward positive potenti...
متن کاملDivalent Cations
AB STRACT The effects of external Zn+2 and other divalent cations on K channels in squid giant axons were studied. At low concentration (2 mM) Zn+2 slows opening kinetics without affecting closing kinetics . Higher concentrations (5-40 mM) progressively slow opening and speed channel closing to a lesser degree. In terms of "shifts," opening kinetics are strongly shifted to the right on the volt...
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brane uptake of IFB, were completely reversible. These findings are consistent with the concept that the formation of calcium salt bridges is essential for attachment of IFB,2 to the ileal-absorptive surface.
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The colicin A lysis protein, Cal, is synthesized at the same time as colicin A by Escherichiu coli harbouring plasmid pColA after induction by mitomycin C. Its function in the induced bacteria involves the release of colicin A, quasi-lysis, the death of the producing cells and the activation of the outer membrane phospholipase A. We have found that these various functions are affected different...
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The ionophoretic antibiotics, monensin and lasalocid, bind numerous mono- and divalent cations, primarily in dimeric complexes that facilitate the passage of metal ions through hydrophobic lipid membranes. Ionophores vary in their affinity for metal ions. Similarly, transport rates of the resulting complexes depend in part upon the affinity constant of the drug ion-binding interaction, and in p...
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ژورنال
عنوان ژورنال: The Journal of Physical Chemistry C
سال: 2019
ISSN: 1932-7447,1932-7455
DOI: 10.1021/acs.jpcc.9b07632