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Conical Nanotubes Synthesized by Atomic Layer Deposition of $Al_{2}O_{3}$, $TiO_{2}$, and $SiO_{2}$ in Etched Ion-Track Nanochannels
| Content Provider | MDPI |
|---|---|
| Author | Ulrich, Nils Spende, Anne Burr, Loïc Sobel, Nicolas Schubert, Ina Hess, Christian Trautmann, Christina Toimil-Molares, Maria |
| Copyright Year | 2021 |
| Description | Etched ion-track polycarbonate membranes with conical nanochannels of aspect ratios of ~3000 are coated with $Al_{2}O_{3}$, $TiO_{2}$, and $SiO_{2}$ 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. |
| Starting Page | 1874 |
| e-ISSN | 20794991 |
| DOI | 10.3390/nano11081874 |
| Journal | Nanomaterials |
| Issue Number | 8 |
| Volume Number | 11 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-07-21 |
| Access Restriction | Open |
| Subject Keyword | Nanomaterials Conical Nanotube Ion-track Technology Atomic Layer Deposition Nanopore Confinement Etched Ion-track Membrane Polymeric Nanochannel Ion-current Rectification |
| Content Type | Text |
| Resource Type | Article |