Peach skin effect: a quasi-superhydrophobic state with high adhesive force

Xianyong Lu, Hongyan Cai, Yanzi Wu, Chao Teng, Congcong Jiang, Ying Zhu, Lei Jiang

Research output: Contribution to journalArticleResearchpeer-review

19 Citations (Scopus)

Abstract

The surface of a peach is known to exhibit special wettability and adhesion behaviors. We disclose that the peach surface is covered with long and short indumentums. The long indumentums are covered mainly with hydrophobic wax molecules, while the short indumentums are coated mostly with hydrophilic polysaccharides. Thus, the peach surface exhibits a quasi-superhydrophobic property and high adhesive force. A water droplet on the surface of a peach is a quasi-sphere, which is unable to roll off even when the peach is turned upside down. This is defined as the peach skin effect. We present that the quasi-superhydrophobic state with high adhesive force is attributed to the special coexisting Wenzel’s and Cassie’s state for water droplets, thus creating the strong interaction between the water droplet and surface.

Original languageEnglish
Pages (from-to)453-459
Number of pages7
JournalScience Bulletin
Volume60
Issue number4
DOIs
Publication statusPublished - Feb 2015
Externally publishedYes

Keywords

  • High adhesive force
  • Peach surface
  • Quasi-superhydrophobic
  • Wenzel’s and Cassie’s state

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