Non-mediated zero voltage conductance of hydrophobic ions through bilayer lipid membranes |
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Authors: | Claude Gavach Roger Sandeux |
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Institution: | Group de Researches, Physicochimie des interfaces, CNRS,BP 5051, 34033, Montpellier Cédex, France |
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Abstract: | A charge pulse technique applied to the study of charge transfer at metal-solution interfaces has been used to determine the capacity and the conductance of a membrane bilayer at both zero time and zero voltage. The transport of hydrophobic ion across a glycerol-monooleate bilayer (tetraphenyl borate, picrate, dipicrylamine and tetraphenyl arsonium) has been investigated by this method. A theoretical approach to the problem has been proposed based on one analogous to that used for the compact double layer at metallic electrodes. |
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