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Cesium-Induced Ionic Conduction through a Single Nanofluidic Pore Modified with Calixcrown Moieties

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Cesium-Induced Ionic Conduction through a Single Nanofluidic Pore Modified with Calixcrown Moieties

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dc.contributor.author Ali, Mubarak es_ES
dc.contributor.author Ahmed, Ishtiaq es_ES
dc.contributor.author Ramirez Hoyos, Patricio es_ES
dc.contributor.author Nasir, Saima es_ES
dc.contributor.author Cervera, Javier es_ES
dc.contributor.author Mafe, Salvador es_ES
dc.contributor.author Niemeyer, Christof M. es_ES
dc.contributor.author Ensinger, Wolfgang es_ES
dc.date.accessioned 2018-09-17T07:19:26Z
dc.date.available 2018-09-17T07:19:26Z
dc.date.issued 2017 es_ES
dc.identifier.issn 0743-7463 es_ES
dc.identifier.uri http://hdl.handle.net/10251/107377
dc.description.abstract [EN] We demonstrate experimentally and theoretically a nanofluidic device for the selective recognition of the cesium ion by exploiting host¿guest interactions inside confined geometry. For this purpose, a host molecule, i.e., the amine-terminated p-tert-butylcalix[4]arene-crown (tBuC[4]C¿NH2), is successfully synthesized and functionalized on the surface of a single conical nanopore fabricated in a poly(ethylene terephthalate) (PET) membrane through carbodiimide coupling chemistry. On exposure to the cesium cation, the t-BuC[4]C¿Cs+ complex is formed through host¿guest interaction, leading to the generation of positive fixed charges on the pore surface. The asymmetrical distribution of these groups along the conical nanopore leads to the electrical rectification observed in the current¿voltage (I¿V) curve. On the contrary, other alkali cations are not able to induce any significant change in the rectification characteristics of the nanopore. The success of the chemical modification is monitored from the changes in the electrical readout of the nanopore. Theoretical results based on the Nernst¿Planck and Poisson equations further demonstrate the validity of the experimental approach to the cesium-induced ionic conduction of the nanopore. es_ES
dc.description.sponsorship M.A., S.N., and W.E. acknowledge funding from the Hessen State Ministry of Higher Education, Research and the Arts, Germany, under LOEWE project iNAPO. P.R., J.C., and S.M. acknowledge financial support by the Spanish Ministry of Economic Affairs and Competitiveness (MAT2015-65011-P) and FEDER. I.A. and C.M.N. acknowledge financial support through the Helmholtz programme Biolnterfaces in Technology and Medicine. The authors are thankful to Prof. Christina Trautmann from GSI (Department of Material Research) for support with the heavy ion irradiation experiments and Dr. M. Nawaz Tahir (Johannes Gutenberg University Mainz) for help with contact angle measurements. en_EN
dc.language Inglés es_ES
dc.publisher American Chemical Society es_ES
dc.relation MINISTERIO DE ECONOMIA INDUSTRIA Y COMPETITIVIDAD /MAT2015-65011-P es_ES
dc.relation.ispartof Langmuir es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject.classification FISICA APLICADA es_ES
dc.title Cesium-Induced Ionic Conduction through a Single Nanofluidic Pore Modified with Calixcrown Moieties es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1021/acs.langmuir.7b02368 es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada es_ES
dc.description.bibliographicCitation Ali, M.; Ahmed, I.; Ramirez Hoyos, P.; Nasir, S.; Cervera, J.; Mafe, S.; Niemeyer, CM.... (2017). Cesium-Induced Ionic Conduction through a Single Nanofluidic Pore Modified with Calixcrown Moieties. Langmuir. 33(36):9170-9177. doi:10.1021/acs.langmuir.7b02368 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1021/acs.langmuir.7b02368 es_ES
dc.description.upvformatpinicio 9170 es_ES
dc.description.upvformatpfin 9177 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 33 es_ES
dc.description.issue 36 es_ES
dc.relation.pasarela 342402 es_ES
dc.contributor.funder MINISTERIO DE ECONOMIA INDUSTRIA Y COMPETITIVIDAD es_ES


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