Host–guest supramolecular chemistry in solid-state nanopores: potassium-driven modulation of ionic transport in nanofluidic diodes

We describe the use of asymmetric nanopores decorated with crown ethers for constructing robust signal-responsive chemical devices. The modification of single conical nanopores with 18-crown-6 units led to a nanodevice whose electronic readout, derived from the transmembrane ion current, can be fine...

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Detalles Bibliográficos
Autores principales: Pérez Mitta, Gonzalo, Albesa, Alberto Gustavo, Knoll, Wolfgang, Trautmann, Christina, Toimil-Molares, María Eugenia, Azzaroni, Omar
Formato: Articulo
Lenguaje:Inglés
Publicado: 2015
Materias:
Ciencias Exactas
Química
asymmetric nanopores
chemical nanodevices
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/147625
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-147625
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Química
asymmetric nanopores
chemical nanodevices
spellingShingle Ciencias Exactas
Química
asymmetric nanopores
chemical nanodevices
Pérez Mitta, Gonzalo
Albesa, Alberto Gustavo
Knoll, Wolfgang
Trautmann, Christina
Toimil-Molares, María Eugenia
Azzaroni, Omar
Host–guest supramolecular chemistry in solid-state nanopores: potassium-driven modulation of ionic transport in nanofluidic diodes
topic_facet Ciencias Exactas
Química
asymmetric nanopores
chemical nanodevices
description We describe the use of asymmetric nanopores decorated with crown ethers for constructing robust signal-responsive chemical devices. The modification of single conical nanopores with 18-crown-6 units led to a nanodevice whose electronic readout, derived from the transmembrane ion current, can be finely tuned over a wide range of K⁺ concentrations. The electrostatic characteristics of the nanopore environment arising from host–guest ion-recognition processes taking place on the pore walls are responsible for tuning the transmembrane ionic transport and the rectification properties of the pore. This work illustrates the potential and versatility of host–guest chemistry, in combination with nanofluidic elements, as a key enabler to achieve addressable chemical nanodevices mimicking the ion transport properties and gating functions of specific biological channels.
format Articulo
Articulo
author Pérez Mitta, Gonzalo
Albesa, Alberto Gustavo
Knoll, Wolfgang
Trautmann, Christina
Toimil-Molares, María Eugenia
Azzaroni, Omar
author_facet Pérez Mitta, Gonzalo
Albesa, Alberto Gustavo
Knoll, Wolfgang
Trautmann, Christina
Toimil-Molares, María Eugenia
Azzaroni, Omar
author_sort Pérez Mitta, Gonzalo
title Host–guest supramolecular chemistry in solid-state nanopores: potassium-driven modulation of ionic transport in nanofluidic diodes
title_short Host–guest supramolecular chemistry in solid-state nanopores: potassium-driven modulation of ionic transport in nanofluidic diodes
title_full Host–guest supramolecular chemistry in solid-state nanopores: potassium-driven modulation of ionic transport in nanofluidic diodes
title_fullStr Host–guest supramolecular chemistry in solid-state nanopores: potassium-driven modulation of ionic transport in nanofluidic diodes
title_full_unstemmed Host–guest supramolecular chemistry in solid-state nanopores: potassium-driven modulation of ionic transport in nanofluidic diodes
title_sort host–guest supramolecular chemistry in solid-state nanopores: potassium-driven modulation of ionic transport in nanofluidic diodes
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/147625
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