Pérez-Mitta, Gonzalo ; Albesa, Alberto G. ; Knoll, Wolfgang ; Trautmann, Christina ; Toimil-Molares, María Eugenia ; Azzaroni, Omar (2015)
Host-guest supramolecular chemistry in solid-state nanopores: potassium-driven modulation of ionic transport in nanofluidic diodes.
In: Nanoscale, 7 (38)
doi: 10.1039/c5nr04645a
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
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.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2015 |
| Autor(en): | Pérez-Mitta, Gonzalo ; Albesa, Alberto G. ; Knoll, Wolfgang ; Trautmann, Christina ; Toimil-Molares, María Eugenia ; Azzaroni, Omar |
| Art des Eintrags: | Bibliographie |
| Titel: | Host-guest supramolecular chemistry in solid-state nanopores: potassium-driven modulation of ionic transport in nanofluidic diodes |
| Sprache: | Englisch |
| Publikationsjahr: | 27 August 2015 |
| Verlag: | Royal Society of Chemistry |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Nanoscale |
| Jahrgang/Volume einer Zeitschrift: | 7 |
| (Heft-)Nummer: | 38 |
| DOI: | 10.1039/c5nr04645a |
| Kurzbeschreibung (Abstract): | 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. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Ionenstrahlmodifizierte Materialien |
| Hinterlegungsdatum: | 18 Mär 2024 06:43 |
| Letzte Änderung: | 18 Mär 2024 06:43 |
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