Ionic conduction, rectification, and selectivity in single conical nanopores
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Ionic conduction, rectification, and selectivity in single conical nanopores

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Ionic conduction, rectification, and selectivity in single conical nanopores

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dc.contributor.author Cervera Montesinos, Javier
dc.contributor.author Schiedt, Birgitta
dc.contributor.author Neumann, Reinhard
dc.contributor.author Mafé, Salvador
dc.contributor.author Ramírez Hoyos, Patricio
dc.date.accessioned 2010-05-14T10:31:42Z
dc.date.available 2010-05-14T10:31:42Z
dc.date.issued 2006
dc.identifier.uri http://hdl.handle.net/10550/2401
dc.language.iso en en
dc.relation http://scitation.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=JCPSA6000124000010104706000001&idtype=cvips&prog=normal&doi=10.1063/1.2179797 en
dc.source CERVERA, Javier ; SCHIEDT, Birgitta ; NEUMANN, Reinhard ; MAFÉ, Salvador ; RAMÍREZ, Patricio. Ionic conduction, rectification, and selectivity in single conical nanopores. En: Journal of Chemical Physics, 2006, vol. 124 en
dc.subject Biomembranes ; Bioelectric phenomena ; Ionic conductivity ; Rectification ; Molecular biophysics ; Electrolytes ; Poisson equation en
dc.title Ionic conduction, rectification, and selectivity in single conical nanopores en
dc.type info:eu-repo/semantics/article en
dc.type info:eu-repo/semantics/publishedVersion en
dc.subject.unesco UNESCO::FÍSICA::Química física en
dc.identifier.doi 10.1063/1.2179797 en
dc.description.abstractenglish Modern track-etching methods allow the preparation of membranes containing a single charged conical nanopore that shows high ionic permselectivity due to the electrical interactions of the surface pore charges with the mobile ions in the aqueous solution. The nanopore has potential applications in electrically assisted single-particle detection, analysis, and separation of biomolecules. We present a detailed theoretical and experimental account of the effects of pore radii and electrolyte concentration on the current-voltage and current-concentration curves. The physical model used is based on the Nernst-Planck and Poisson equations. Since the validity of continuum models for the description of ion transport under different voltages and concentrations is recognized as one of the main issues in the modeling of future applications, special attention is paid to the fundamental understanding of the electrical interactions between the nanopore fixed charges and the mobile charges confined in the reduced volume of the inside solution. en
dc.description.private Salvador.Mafe@uv.es en

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