Reliability Engineering Institute, National Engineering Research Center for Water Transport Safety, Wuhan University of Technology, Wuhan 430063, China; Key Laboratory of Marine Power Engineering and Technology, Ministry of Transport, Wuhan University of Technology, Wuhan 430063, China.
Reliability Engineering Institute, National Engineering Research Center for Water Transport Safety, Wuhan University of Technology, Wuhan 430063, China; Key Laboratory of Marine Power Engineering and Technology, Ministry of Transport, Wuhan University of Technology, Wuhan 430063, China.
Colloids Surf B Biointerfaces. 2019 Dec 1;184:110502. doi: 10.1016/j.colsurfb.2019.110502. Epub 2019 Sep 11.
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 SiO 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.
仿生超疏水表面和仿生滑润液注入多孔表面（SLIPS）已被开发为解决生物污垢问题的潜在替代品。在此，我们采用一种简便的方法在不锈钢上构建具有超疏水和液体注入多孔性能的表面以实现防污应用。纳米结构是通过聚阳离子和带负电荷的 SiO2 纳米颗粒之间的静电吸引形成的，为超疏水表面和液体注入表面提供了结构基础。生物污垢测试表明，液体注入多孔表面具有优异的防污性能，可使小球藻的附着减少 93%，三角褐指藻的附着减少 71%。热力学解释进一步表明，超疏水表面捕获的空气层和液体注入多孔表面截留的润滑剂层在其防污性能中起主要作用。这些鼓舞人心的结果可能表明液体注入多孔表面在防污应用中具有巨大的潜力。
