Beauty of lotus is more than skin deep: Highly buoyant superhydrophobic films

Yuri Choi, Teresa Brugarolas, Sung Min Kang, Bum Jun Park, Byeong Su Kim, Chang Soo Lee, Daeyeon Lee

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

We develop highly buoyant superhydrophobic films that mimic the three-dimensional structure of lotus leaves. The high buoyancy of these structure stems from mechanically robust bubbles that significantly reduce the density of the superhydrophobic films. These highly buoyant superhydrophobic films stay afloat on water surface while carrying a load that is more than 200 times their own weight. In addition to imparting high buoyancy, the incorporation of robust hydrophilic bubbles enables the formation of free-standing structures that mimic the water-collection properties of Namib Desert beetle. We believe the incorporation of robust bubbles is a general method that opens up numerous possibilities in imparting high buoyancy to different structures that needs to stay afloat on water surfaces and can potentially be used for the fabrication of lightweight materials. (Image on the upper left reproduced with permission from Yong, J.; Yang, Q.; Chen, F.; Zhang, D.; Du, G.; Si, J.; Yun, F.; Hou, X. A Bioinspired Planar Superhydrophobic Microboat. J. Micromech. Microeng. 2014, 24, 035006. Copyright 2014 IOP Publishing.)

Original languageEnglish
Pages (from-to)7009-7013
Number of pages5
JournalACS Applied Materials and Interfaces
Volume6
Issue number10
DOIs
Publication statusPublished - 2014 May 28

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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