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
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 (AL...
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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 |
work_keys_str_mv |
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