Ion current rectification and rectification inversion in conical nanopores: a perm-selective view |
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| Authors: | Momotenko Dmitry Cortés-Salazar Fernando Josserand Jacques Liu Shujuan Shao Yuanhua Girault Hubert H |
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| Affiliation: | Laboratoire d'Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne, Station 6, CH-1015 Lausanne, Switzerland. |
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| Abstract: | Ionic transport in charged conical nanopores is known to give rise to ion current rectification. The present study shows that the rectification direction can be inverted when using electrolyte solutions at very low ionic strengths. To elucidate these phenomena, electroneutral conical nanopores containing a perm-selective region at the tip have been investigated and shown to behave like classical charged nanopores. An analytical model is proposed to account for these rectification processes. |
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