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Smart water channelling through dual wettability by leaves of the bamboo Phyllostachys aurea

Articles

Revue/Conférence:

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS

Language:

English

Auteur:

Wigzell J. M.; Racovita R. C.; Stentiford B. G.; Wilson M.; Harris M. T.; Fletcher I. W.; Mosquin D. P. K.; Justice D.; Beaumont S. K.; Jetter R.; Badyal J. P. S.

Année:

2016

Volume:

506

Pages:

344-355

Mots-clés:

Water harvesting; Dual surface wetting; Bamboo; Bioinspired

The young leaves of the bamboo plant, Phyllostachys aurea, exhibit a distinct dual wetting behaviour on their adaxial surface. Contact angle analysis, variable pressure (environmental) scanning electron microscopy, gas chromatography, time-of-flight secondary ion mass spectrometry, and X-ray photoelectron spectroscopy have shown that the epicuticular wax morphology/topography and the surface distribution of chemical species underpin this water-channelling behaviour. Envisaged bioinspired applications include fog and dew harvesting in water-scarce regions of the world. (C) 2016 Elsevier B.V. All rights reserved.