Ali, Mubarak ; Nasir, Saima ; Ramirez, Patricio ; Ahmed, Ishtiaq ; Nguyen, Quoc Hung ; Fruk, Ljiljana ; Mafe, Salvador ; Ensinger, Wolfgang (2012)
Optical Gating of Photosensitive Synthetic Ion Channels.
In: Advanced Functional Materials, 22 (2)
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
4-oxo-4-(pyren-4-ylmethoxy) butanoic acid is used as a photolabile protecting group to show the optical gating of nanofluidic devices based on synthetic ion channels. The inner surface of the channels is decorated with monolayers of photolabile hydrophobic molecules that can be removed by irradiation, which leads to the generation of hydrophilic groups. This process can be exploited in the UV-light-triggered permselective transport of ionic species in aqueous solution through the channels. The optical gating of a single conical nanochannel and multichannel polymeric membranes is characterised experimentally and theoretically by means of current-voltage and selective permeation measurements, respectively. It is anticipated that the integration of nanostructures into multifunctional devices is feasible and can readily find applications in light-induced controlled release, sensing, and information processing.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2012 |
| Autor(en): | Ali, Mubarak ; Nasir, Saima ; Ramirez, Patricio ; Ahmed, Ishtiaq ; Nguyen, Quoc Hung ; Fruk, Ljiljana ; Mafe, Salvador ; Ensinger, Wolfgang |
| Art des Eintrags: | Bibliographie |
| Titel: | Optical Gating of Photosensitive Synthetic Ion Channels |
| Sprache: | Englisch |
| Publikationsjahr: | 25 Januar 2012 |
| Verlag: | WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Advanced Functional Materials |
| Jahrgang/Volume einer Zeitschrift: | 22 |
| (Heft-)Nummer: | 2 |
| URL / URN: | http://onlinelibrary.wiley.com/doi/10.1002/adfm.201102146/ab... |
| Kurzbeschreibung (Abstract): | 4-oxo-4-(pyren-4-ylmethoxy) butanoic acid is used as a photolabile protecting group to show the optical gating of nanofluidic devices based on synthetic ion channels. The inner surface of the channels is decorated with monolayers of photolabile hydrophobic molecules that can be removed by irradiation, which leads to the generation of hydrophilic groups. This process can be exploited in the UV-light-triggered permselective transport of ionic species in aqueous solution through the channels. The optical gating of a single conical nanochannel and multichannel polymeric membranes is characterised experimentally and theoretically by means of current-voltage and selective permeation measurements, respectively. It is anticipated that the integration of nanostructures into multifunctional devices is feasible and can readily find applications in light-induced controlled release, sensing, and information processing. |
| Freie Schlagworte: | current rectification, optical gating, photosensitive nanostructures, polymer membranes, synthetic ion channels |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialanalytik 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 19 Jan 2012 13:15 |
| Letzte Änderung: | 05 Mär 2013 09:57 |
| PPN: | |
| Sponsoren: | M.A., S.N., Q.H.N., and W.E. gratefully acknowledge financial support by the Beilstein-Institut, Frankfurt/Main, Germany, within the research collaboration NanoBiC., P.R. and S.M. acknowledge the financial support from the Ministry of Science and Innovation of Spain, Programme of Materials (project No. MAT2009-07747), and FEDER., I.A. and L.F. were financially supported by KIT Excellence Initiative, project A5.7. |
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