Conical Nanotubes Synthesized by Atomic Layer Deposition of Al2O3, TiO2, and SiO2 in Etched Ion-Track Nanochannels

Etched ion-track polycarbonate membranes with conical nanochannels of aspect ratios of ~3000 are coated with Al2O3, TiO2, and SiO2 thin films of thicknesses between 10 and 20 nm by atomic layer deposition (AL...

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Main Authors:	Nils Ulrich, Anne Spende, Loïc Burr, Nicolas Sobel, Ina Schubert, Christian Hess, Christina Trautmann, Maria Eugenia Toimil-Molares
Format:	Article
Language:	English
Published:	MDPI AG 2021-07-01
Series:	Nanomaterials
Subjects:	conical nanotube ion-track technology atomic layer deposition nanopore confinement etched ion-track membrane polymeric nanochannel
Online Access:	https://www.mdpi.com/2079-4991/11/8/1874

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spelling	doaj-6b26edb446f84d61a9c4e768d25d07662021-08-26T14:08:37ZengMDPI AGNanomaterials2079-49912021-07-01111874187410.3390/nano11081874Conical Nanotubes Synthesized by Atomic Layer Deposition of Al<sub>2</sub>O<sub>3</sub>, TiO<sub>2</sub>, and SiO<sub>2</sub> in Etched Ion-Track NanochannelsNils Ulrich0Anne Spende1Loïc Burr2Nicolas Sobel3Ina Schubert4Christian Hess5Christina Trautmann6Maria Eugenia Toimil-Molares7Materialforschung, GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, GermanyMaterialforschung, GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, GermanyMaterialforschung, GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, GermanyEduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, 64287 Darmstadt, GermanyMaterialforschung, GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, GermanyEduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, 64287 Darmstadt, GermanyMaterialforschung, GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, GermanyMaterialforschung, GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, GermanyEtched ion-track polycarbonate membranes with conical nanochannels of aspect ratios of ~3000 are coated with Al<sub>2</sub>O<sub>3</sub>, TiO<sub>2</sub>, and SiO<sub>2</sub> thin films of thicknesses between 10 and 20 nm by atomic layer deposition (ALD). By combining ion-track technology and ALD, the fabrication of two kinds of functional structures with customized surfaces is presented: (i) arrays of free-standing conical nanotubes with controlled geometry and wall thickness, interesting for, e.g., drug delivery and surface wettability regulation, and (ii) single nanochannel membranes with inorganic surfaces and adjustable isoelectric points for nanofluidic applications.https://www.mdpi.com/2079-4991/11/8/1874conical nanotubeion-track technologyatomic layer depositionnanopore confinementetched ion-track membranepolymeric nanochannel
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Nils Ulrich Anne Spende Loïc Burr Nicolas Sobel Ina Schubert Christian Hess Christina Trautmann Maria Eugenia Toimil-Molares
spellingShingle	Nils Ulrich Anne Spende Loïc Burr Nicolas Sobel Ina Schubert Christian Hess Christina Trautmann Maria Eugenia Toimil-Molares Conical Nanotubes Synthesized by Atomic Layer Deposition of Al<sub>2</sub>O<sub>3</sub>, TiO<sub>2</sub>, and SiO<sub>2</sub> in Etched Ion-Track Nanochannels Nanomaterials conical nanotube ion-track technology atomic layer deposition nanopore confinement etched ion-track membrane polymeric nanochannel
author_facet	Nils Ulrich Anne Spende Loïc Burr Nicolas Sobel Ina Schubert Christian Hess Christina Trautmann Maria Eugenia Toimil-Molares
author_sort	Nils Ulrich
title	Conical Nanotubes Synthesized by Atomic Layer Deposition of Al<sub>2</sub>O<sub>3</sub>, TiO<sub>2</sub>, and SiO<sub>2</sub> in Etched Ion-Track Nanochannels
title_short	Conical Nanotubes Synthesized by Atomic Layer Deposition of Al<sub>2</sub>O<sub>3</sub>, TiO<sub>2</sub>, and SiO<sub>2</sub> in Etched Ion-Track Nanochannels
title_full	Conical Nanotubes Synthesized by Atomic Layer Deposition of Al<sub>2</sub>O<sub>3</sub>, TiO<sub>2</sub>, and SiO<sub>2</sub> in Etched Ion-Track Nanochannels
title_fullStr	Conical Nanotubes Synthesized by Atomic Layer Deposition of Al<sub>2</sub>O<sub>3</sub>, TiO<sub>2</sub>, and SiO<sub>2</sub> in Etched Ion-Track Nanochannels
title_full_unstemmed	Conical Nanotubes Synthesized by Atomic Layer Deposition of Al<sub>2</sub>O<sub>3</sub>, TiO<sub>2</sub>, and SiO<sub>2</sub> in Etched Ion-Track Nanochannels
title_sort	conical nanotubes synthesized by atomic layer deposition of al<sub>2</sub>o<sub>3</sub>, tio<sub>2</sub>, and sio<sub>2</sub> in etched ion-track nanochannels
publisher	MDPI AG
series	Nanomaterials
issn	2079-4991
publishDate	2021-07-01
description	Etched ion-track polycarbonate membranes with conical nanochannels of aspect ratios of ~3000 are coated with Al<sub>2</sub>O<sub>3</sub>, TiO<sub>2</sub>, and SiO<sub>2</sub> thin films of thicknesses between 10 and 20 nm by atomic layer deposition (ALD). By combining ion-track technology and ALD, the fabrication of two kinds of functional structures with customized surfaces is presented: (i) arrays of free-standing conical nanotubes with controlled geometry and wall thickness, interesting for, e.g., drug delivery and surface wettability regulation, and (ii) single nanochannel membranes with inorganic surfaces and adjustable isoelectric points for nanofluidic applications.
topic	conical nanotube ion-track technology atomic layer deposition nanopore confinement etched ion-track membrane polymeric nanochannel
url	https://www.mdpi.com/2079-4991/11/8/1874
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_version_	1721191109117345792

Conical Nanotubes Synthesized by Atomic Layer Deposition of Al<sub>2</sub>O<sub>3</sub>, TiO<sub>2</sub>, and SiO<sub>2</sub> in Etched Ion-Track Nanochannels

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