Experimental demonstration of charge inversion in a protein channel in the presence of monovalent cations
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Otros documentos de la autoría: López Peris, María Lidón; Queralt-Martín, María; Alcaraz, Antonio
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Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/2507
comunitat-uji-handle3:10234/6973
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Título
Experimental demonstration of charge inversion in a protein channel in the presence of monovalent cationsFecha de publicación
2014-11Editor
ElsevierISSN
1388-2481Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://www.sciencedirect.com/science/article/pii/S1388248114002549Versión
info:eu-repo/semantics/submittedVersionPalabras clave / Materias
Resumen
Charge inversion takes place when interfacial charges attract counterions in excess of their own nominal charge. To date, this phenomenon has been reported in a variety of membrane channel systems in the presence of ... [+]
Charge inversion takes place when interfacial charges attract counterions in excess of their own nominal charge. To date, this phenomenon has been reported in a variety of membrane channel systems in the presence of multivalent cations. Here, we investigate the charge inversion phenomenon in a protein channel in solutions of monovalent cations. To this end, we perform selectivity experiments in salts of different cations, changing both the electrolyte concentration and the solution acidity. We show that charge inversion can be produced by two different mechanisms, namely specific adsorption and competitive binding. [-]
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Electrochemistry Communications, 2014, vol. 48Derechos de acceso
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