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Hierarchically-structured artificial water-repellent leaf surfaces replicated from reusable anodized aluminum oxide

Hierarchically-structured artificial water-repellent leaf surfaces replicated from reusable... Abstract Here we present a simple process to synthesize artificial water-repellent leaf structures through the introduction of hierarchical nanostructures to the surface using anodized aluminum oxide templates. Unlike cylindrical nanopores fabricated by conventional anodization, biomimetic hierarchical structures were manufactured by multi-step anodization of nanoscopically pre-patterned Al. From the hierarchical anodized aluminum oxide templates, the perfluoropolyether nanostructures were simply replicated and repeatedly obtained by reusing the anodized aluminum oxide templates without anti-adhesion coating. Upon the investigation of the wettability of perfluoropolyether hierarchical surfaces, it was found that the surface became more hydrophobic (∼152°) with the increase of the structural complexity, and are comparable to water-repellent leaf surfaces found in nature. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png "Macromolecular Research" Springer Journals

Hierarchically-structured artificial water-repellent leaf surfaces replicated from reusable anodized aluminum oxide

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References (39)

Publisher
Springer Journals
Copyright
2012 The Polymer Society of Korea and Springer Netherlands
ISSN
1598-5032
eISSN
2092-7673
DOI
10.1007/s13233-012-0111-5
Publisher site
See Article on Publisher Site

Abstract

Abstract Here we present a simple process to synthesize artificial water-repellent leaf structures through the introduction of hierarchical nanostructures to the surface using anodized aluminum oxide templates. Unlike cylindrical nanopores fabricated by conventional anodization, biomimetic hierarchical structures were manufactured by multi-step anodization of nanoscopically pre-patterned Al. From the hierarchical anodized aluminum oxide templates, the perfluoropolyether nanostructures were simply replicated and repeatedly obtained by reusing the anodized aluminum oxide templates without anti-adhesion coating. Upon the investigation of the wettability of perfluoropolyether hierarchical surfaces, it was found that the surface became more hydrophobic (∼152°) with the increase of the structural complexity, and are comparable to water-repellent leaf surfaces found in nature.

Journal

"Macromolecular Research"Springer Journals

Published: Jul 1, 2012

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