Free-standing alumina nanobottles and nanotubes pre-integrated into nanoporous alumina membranes

Fang, Jinghua, Levchenko, Igor, & Ostrikov, Ken (2014) Free-standing alumina nanobottles and nanotubes pre-integrated into nanoporous alumina membranes. Science and Technology of Advanced Materials, 15(4), pp. 1-8.

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A novel interfacial structure consisting of long (up to 5 μm), thin (about 300 nm), highly-ordered, free-standing, highly-reproducible aluminum oxide nanobottles and long tubular nanocapsules attached to a rigid, thin (less than 1 μm) nanoporous anodic alumina membrane is fabricated by simple, fast, catalyst-free, environmentally friendly voltage-pulse anodization. A growth mechanism is proposed based on the formation of straight channels in alumina membrane by anodization, followed by neck formation due to a sophisticated voltage control during the process. This process can be used for the fabrication of alumina nanocontainers with highly controllable geometrical size and volume, vitally important for various applications such as material and energy storage, targeted drug and diagnostic agent delivery, controlled drug and active agent release, gene and biomolecule reservoirs, micro-biologically protected platforms, nano-bioreactors, tissue engineering and hydrogen storage.

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ID Code: 88576
Item Type: Journal Article
Refereed: Yes
Keywords: alumina nanobottles, nanocontainers, anodization
DOI: 10.1088/1468-6996/15/4/045004
ISSN: 1468-6996
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Institutes > Institute of Health and Biomedical Innovation
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2014 National Institute for Materials Science
Copyright Statement: Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
Deposited On: 11 Nov 2015 05:44
Last Modified: 11 Nov 2015 05:44

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