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Characterization of Rose Petals and Fabrication and Characterization of Superhydrophobic Surfaces with High and Low Adhesion

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Book cover Biomimetics

Part of the book series: Biological and Medical Physics, Biomedical Engineering ((BIOMEDICAL))

Abstract

Unlike the Lotus leaf, some rose petals (rosea Rehd), scallions, and garlic exhibit superhydrophobicity with high contact angle hysteresis (Feng et al., 2008; Chang et al., 2009; Bhushan and Her, 2010). While a water droplet can easily roll off the surface of a Lotus leaf, it stays pinned to the surface of these leaves. The different behavior of wetting between the Lotus leaf and the rose petal can be explained by different designs in the surface hierarchical micro- and nanostructure. Since the rose petal’s microstructure, possibly nanostructure, has a larger pitch value and lower height than the Lotus leaf, the liquid is allowed to impregnate between the microstructure and partially penetrates into the nanostructure, which increases the wetted surface area. As a result, contact angle hysteresis increases with increasing wetted surface area.

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Correspondence to Bharat Bhushan .

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© 2012 Springer-Verlag Berlin Heidelberg

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Bhushan, B. (2012). Characterization of Rose Petals and Fabrication and Characterization of Superhydrophobic Surfaces with High and Low Adhesion. In: Biomimetics. Biological and Medical Physics, Biomedical Engineering. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-25408-6_8

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  • DOI: https://doi.org/10.1007/978-3-642-25408-6_8

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-25407-9

  • Online ISBN: 978-3-642-25408-6

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