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Micro to nano: Surface size scale and superhydrophobicity

This work looks at the fundamental question of how the surface mobility of drops in the composite state is related to the size scale of the roughness features of the surface. To this end, relevant literature is first reviewed and the important terms are clarified. We then describe and discuss contac...

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Detalles Bibliográficos
Autores principales: Dorrer, Christian, Rühe, Jürgen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Beilstein-Institut 2011
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3148034/
https://www.ncbi.nlm.nih.gov/pubmed/21977446
http://dx.doi.org/10.3762/bjnano.2.38
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author Dorrer, Christian
Rühe, Jürgen
author_facet Dorrer, Christian
Rühe, Jürgen
author_sort Dorrer, Christian
collection PubMed
description This work looks at the fundamental question of how the surface mobility of drops in the composite state is related to the size scale of the roughness features of the surface. To this end, relevant literature is first reviewed and the important terms are clarified. We then describe and discuss contact and roll-off angle measurements on a set of hydrophobicized silicon post surfaces for which all parameters except for the surface size scale were held constant. It was found that a critical transition from “sticky superhydrophobic” (composite state with large contact angle hysteresis) to “truly superhydrophobic” (composite state with low hysteresis) takes place as the size of the surface features reaches 1 μm.
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spelling pubmed-31480342011-10-05 Micro to nano: Surface size scale and superhydrophobicity Dorrer, Christian Rühe, Jürgen Beilstein J Nanotechnol Full Research Paper This work looks at the fundamental question of how the surface mobility of drops in the composite state is related to the size scale of the roughness features of the surface. To this end, relevant literature is first reviewed and the important terms are clarified. We then describe and discuss contact and roll-off angle measurements on a set of hydrophobicized silicon post surfaces for which all parameters except for the surface size scale were held constant. It was found that a critical transition from “sticky superhydrophobic” (composite state with large contact angle hysteresis) to “truly superhydrophobic” (composite state with low hysteresis) takes place as the size of the surface features reaches 1 μm. Beilstein-Institut 2011-06-27 /pmc/articles/PMC3148034/ /pubmed/21977446 http://dx.doi.org/10.3762/bjnano.2.38 Text en Copyright © 2011, Dorrer and Rühe https://creativecommons.org/licenses/by/2.0https://www.beilstein-journals.org/bjnano/termsThis is an Open Access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The license is subject to the Beilstein Journal of Nanotechnology terms and conditions: (https://www.beilstein-journals.org/bjnano/terms)
spellingShingle Full Research Paper
Dorrer, Christian
Rühe, Jürgen
Micro to nano: Surface size scale and superhydrophobicity
title Micro to nano: Surface size scale and superhydrophobicity
title_full Micro to nano: Surface size scale and superhydrophobicity
title_fullStr Micro to nano: Surface size scale and superhydrophobicity
title_full_unstemmed Micro to nano: Surface size scale and superhydrophobicity
title_short Micro to nano: Surface size scale and superhydrophobicity
title_sort micro to nano: surface size scale and superhydrophobicity
topic Full Research Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3148034/
https://www.ncbi.nlm.nih.gov/pubmed/21977446
http://dx.doi.org/10.3762/bjnano.2.38
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