Role of trapped air and lubricant in the interactions between fouling and SiO2 nanoparticle surfaces release_fjy3z6sqdnabxp5aojjrf3tdrq

by Xiaoyan He, Feng Tian, Xiuqin Bai, Chengqing Yuan


Both biomimetic superhydrophobic surfaces and biomimetic slippery liquid-infused porous surfaces (SLIPSs) have been developed as potential alternatives for solving the problem of biofouling. Herein, a facile method was used to construct superhydrophobic surfaces and liquid infused porous surfaces on stainless steels for antifouling applications. The nano-structures were formed by electrostatic attraction between polycations and negatively charged SiO2 nanoparticles, providing a structural basis for superhydrophobic surfaces and liquid infused surfaces. Biofouling testing suggested excellent antifouling performances of the liquid infused porous surfaces by decreasing the adhesion of Chlorella pyrenoidosa by 93% and of Phaeodactylum tricornutum by 71%. The thermodynamic interpretation further indicated that the air layer captured by the superhydrophobic surfaces and the lubricant layer entrapped by the liquid infused porous surfaces played the dominant role in their antifouling performances. The inspiring results might show great potential for liquid infused porous surfaces in antifouling applications.
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Published in Colloids and Surfaces B: Biointerfaces by Elsevier BV
ISSN-L 0927-7765
Volume 184
Page(s) 110502
Release Date 2019-09-11
Publisher Elsevier BV
Primary Language en (lookup)

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Type  article-journal
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Date   2019-09-11
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ISSN-L:  0927-7765
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