Pérez-Mitta, Gonzalo ; Marmisollé, Waldemar A. ; Trautmann, Christina ; Toimil-Molares, María Eugenia ; Azzaroni, Omar (2015)
Nanofluidic diodes with dynamic rectification properties stemming from reversible electrochemical conversions in conducting polymers.
In: Journal of the American Chemical Society, 137 (49)
doi: 10.1021/jacs.5b10692
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The use of solid state nanochannels as nanofluidic diodes is currently a topic of large interest in nanotechnology. Particularly, there is a focus in the development of nanochannels with surface functionalities that make them responsive to multiple environmental variables. Here, we present for the first time the construction of electrochemical potential- and pH-responsive nanofluidic diodes using a novel approach based on a controlled electrochemical polymerization of aniline on gold-coated polycarbonate asymmetric nanochannels. The polyaniline-modified nanochannels showed three different levels of reversible ionic rectification corresponding to the degrees of oxidation of the conducting polymer. Our results demonstrate that this strategy enables an accurate and reversible control of the rectification properties due to the well-defined and predictable electrochemical conversion of charged species generated on the pore walls. We envision that these results will create novel avenues to fabricate electrochemically modulated nanofluidic diodes using conducting polymers integrated into single conical nanopores.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2015 |
| Autor(en): | Pérez-Mitta, Gonzalo ; Marmisollé, Waldemar A. ; Trautmann, Christina ; Toimil-Molares, María Eugenia ; Azzaroni, Omar |
| Art des Eintrags: | Bibliographie |
| Titel: | Nanofluidic diodes with dynamic rectification properties stemming from reversible electrochemical conversions in conducting polymers |
| Sprache: | Englisch |
| Publikationsjahr: | 20 November 2015 |
| Verlag: | ACS Publications |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of the American Chemical Society |
| Jahrgang/Volume einer Zeitschrift: | 137 |
| (Heft-)Nummer: | 49 |
| DOI: | 10.1021/jacs.5b10692 |
| Kurzbeschreibung (Abstract): | The use of solid state nanochannels as nanofluidic diodes is currently a topic of large interest in nanotechnology. Particularly, there is a focus in the development of nanochannels with surface functionalities that make them responsive to multiple environmental variables. Here, we present for the first time the construction of electrochemical potential- and pH-responsive nanofluidic diodes using a novel approach based on a controlled electrochemical polymerization of aniline on gold-coated polycarbonate asymmetric nanochannels. The polyaniline-modified nanochannels showed three different levels of reversible ionic rectification corresponding to the degrees of oxidation of the conducting polymer. Our results demonstrate that this strategy enables an accurate and reversible control of the rectification properties due to the well-defined and predictable electrochemical conversion of charged species generated on the pore walls. We envision that these results will create novel avenues to fabricate electrochemically modulated nanofluidic diodes using conducting polymers integrated into single conical nanopores. |
| 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 06:45 |
| Letzte Änderung: | 18 Mär 2024 06:45 |
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