Superhydrophobic nature of nanostructures on an indigenous Australian eucalyptus plant and its potential application

G&eacute;rrard Eddy Jai Poinern, Xuan Thi Le, Derek FawcettMurdoch Applied Nanotechnology Research Group, Department of Physics, Energy Studies and Nanotechnology, School of Engineering and Energy, Murdoch University, Murdoch, Western AustraliaAbstract: In this preliminary study, the morphol...

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Autores principales:	Poinern GEJ, Le XT, Fawcett D
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2011
Materias:	Medical technology R855-855.5 Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/4257e47080e2443faba708be764c8159
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spelling	oai:doaj.org-article:4257e47080e2443faba708be764c81592021-12-02T06:12:00ZSuperhydrophobic nature of nanostructures on an indigenous Australian eucalyptus plant and its potential application1177-8903https://doaj.org/article/4257e47080e2443faba708be764c81592011-10-01T00:00:00Zhttp://www.dovepress.com/superhydrophobic-nature-of-nanostructures-on-an-indigenous-australian--a8523https://doaj.org/toc/1177-8903G&eacute;rrard Eddy Jai Poinern, Xuan Thi Le, Derek FawcettMurdoch Applied Nanotechnology Research Group, Department of Physics, Energy Studies and Nanotechnology, School of Engineering and Energy, Murdoch University, Murdoch, Western AustraliaAbstract: In this preliminary study, the morphology and nanostructured features formed by the epicuticular waxes of the mottlecah (Eucalyptus macrocarpa) leaf were investigated and quantified. The surface features formed by the waxes give the leaf remarkable wetting and self-cleaning properties that enhance the plant&#39;s survival in an arid climate. This paper also provides experimental evidence of the self-assembly properties of the epicuticular waxes. Analysis of the water contact angle measurements gave a mean static contact angle of 162.00 &plusmn; 6.10 degrees, which clearly indicated that the mottlecah&#39;s leaf surface was superhydrophobic. Detailed field emission scanning electron microscopy examination revealed that the surface was covered by bumps approximately 20 &micro;m in diameter and regularly spaced at a distance of around 26 &micro;m. The bumps are capped by nanotubules/pillars with an average diameter of 280 nm at the tips. Self-cleaning experiments indicated that the mottlecah&#39;s leaf could be effectively cleaned by a fine spray of water droplets that rolled over the surface picking up contaminants. Field emission scanning electron microscopy investigation of extracted epicuticular waxes revealed that the waxes were capable of self-reassembly and formed features similar to those of the original leaf surface. Furthermore, also reported is a simple technique for surface treating one side of a planar surface to produce a superhydrophobic surface that can be used as a planar floatation platform for microdevices.Keywords: superhydrophobic, nanopillars, epicuticular waxes, self-cleaning, floatation, micro-fluidicPoinern GEJLe XTFawcett DDove Medical PressarticleMedical technologyR855-855.5Chemical technologyTP1-1185ENNanotechnology, Science and Applications, Vol 2011, Iss default, Pp 113-121 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medical technology R855-855.5 Chemical technology TP1-1185
spellingShingle	Medical technology R855-855.5 Chemical technology TP1-1185 Poinern GEJ Le XT Fawcett D Superhydrophobic nature of nanostructures on an indigenous Australian eucalyptus plant and its potential application
description	G&eacute;rrard Eddy Jai Poinern, Xuan Thi Le, Derek FawcettMurdoch Applied Nanotechnology Research Group, Department of Physics, Energy Studies and Nanotechnology, School of Engineering and Energy, Murdoch University, Murdoch, Western AustraliaAbstract: In this preliminary study, the morphology and nanostructured features formed by the epicuticular waxes of the mottlecah (Eucalyptus macrocarpa) leaf were investigated and quantified. The surface features formed by the waxes give the leaf remarkable wetting and self-cleaning properties that enhance the plant&#39;s survival in an arid climate. This paper also provides experimental evidence of the self-assembly properties of the epicuticular waxes. Analysis of the water contact angle measurements gave a mean static contact angle of 162.00 &plusmn; 6.10 degrees, which clearly indicated that the mottlecah&#39;s leaf surface was superhydrophobic. Detailed field emission scanning electron microscopy examination revealed that the surface was covered by bumps approximately 20 &micro;m in diameter and regularly spaced at a distance of around 26 &micro;m. The bumps are capped by nanotubules/pillars with an average diameter of 280 nm at the tips. Self-cleaning experiments indicated that the mottlecah&#39;s leaf could be effectively cleaned by a fine spray of water droplets that rolled over the surface picking up contaminants. Field emission scanning electron microscopy investigation of extracted epicuticular waxes revealed that the waxes were capable of self-reassembly and formed features similar to those of the original leaf surface. Furthermore, also reported is a simple technique for surface treating one side of a planar surface to produce a superhydrophobic surface that can be used as a planar floatation platform for microdevices.Keywords: superhydrophobic, nanopillars, epicuticular waxes, self-cleaning, floatation, micro-fluidic
format	article
author	Poinern GEJ Le XT Fawcett D
author_facet	Poinern GEJ Le XT Fawcett D
author_sort	Poinern GEJ
title	Superhydrophobic nature of nanostructures on an indigenous Australian eucalyptus plant and its potential application
title_short	Superhydrophobic nature of nanostructures on an indigenous Australian eucalyptus plant and its potential application
title_full	Superhydrophobic nature of nanostructures on an indigenous Australian eucalyptus plant and its potential application
title_fullStr	Superhydrophobic nature of nanostructures on an indigenous Australian eucalyptus plant and its potential application
title_full_unstemmed	Superhydrophobic nature of nanostructures on an indigenous Australian eucalyptus plant and its potential application
title_sort	superhydrophobic nature of nanostructures on an indigenous australian eucalyptus plant and its potential application
publisher	Dove Medical Press
publishDate	2011
url	https://doaj.org/article/4257e47080e2443faba708be764c8159
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Superhydrophobic nature of nanostructures on an indigenous Australian eucalyptus plant and its potential application

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