Journal ArticleDOI
Nepenthes Pitcher Inspired Anti-Wetting Silicone Nanofilaments Coatings: Preparation, Unique Anti-Wetting and Self-Cleaning Behaviors
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TLDR
In this paper, a combination of fluoro-silicone nanofilaments (fluoro-SNs) and Krytox liquids, perfluoropolyethers, is successfully fabricated by the combination of Fluoro-Siamese Nanofilament (FLN) and krytox liquid via capillary effect.Abstract:
Nepenthes pitcher inspired anti-wetting coatings, fluoro-SNs/Krytox, are successfully fabricated by the combination of fluoro-silicone nanofilaments (fluoro-SNs) and Krytox liquids, perfluoropolyethers. Fluoro-SNs with different microstructure are grown onto glass slides using trichloromethylsilane by simply repeating the coating step, and then modified with 1H,1H,2H,2H-perfluorodecyltrichlorosilane. Subsequently, the Krytox liquid is spread on the fluoro-SNs coatings via capillary effect. The fluoro-SNs/Krytox coatings feature ultra-low sliding angle for various liquids, excellent stability, and transparency. The sliding speed of liquid drops on the fluoro-SNs/Krytox coating is obviously slower than on the lotus inspired superhydrophobic and superoleophobic coatings, and is controlled by composition of the coating (e.g., morphology of the fluoro-SNs, type of Krytox and its thickness) and properties of the liquid drops (e.g., density and surface tension). In addition, the self-cleaning property of the fluoro-SNs/Krytox coating is closely related to properties of liquid drops and dirt.read more
Citations
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Transparent self-cleaning lubricant-infused surfaces made with large-area breath figure patterns
TL;DR: Wang et al. as discussed by the authors fabricated transparent slippery lubricant-infused surfaces based on breath figure patterns (BFPs), where large-area BFPs with interconnected pores were initially formed on the glass substrate and then a suitable lubricant was added onto the surfaces.
Journal ArticleDOI
Multifunctional, robust sponges by a simple adsorption–combustion method
TL;DR: In this paper, a facile and inexpensive combustion-assisted in situ carbon deposition method was proposed to fabricate effective absorbents using a commercially available sponge as a porous substrate, which exhibits excellent hydrophobicity, fire-resistance, compressibility, and self-cleaning properties, and can effectively separate oils from water even under harsh conditions.
Journal ArticleDOI
Stable slippery liquid-infused anti-wetting surface at high temperatures
TL;DR: In this paper, the authors used chemically etched stainless steel (CESS) as the substrate structure, and they used silicone oil to infuse the silanized CESS to create a slippery surface with a very low sliding angle.
Journal ArticleDOI
Stable Omniphobic Anisotropic Covalently Grafted Slippery Surfaces for Directional Transportation of Drops and Bubbles
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Slippery surface based on photoelectric responsive nanoporous composites with optimal wettability region for droplets' multifunctional manipulation
TL;DR: A photoelectric cooperative‐responsive slippery surface based on ZnO nanoporous composites is demonstrated, and the effect of composite surface wettability on slippery surface stability is systematically researched and the optimum wettable region for fabricating stable slippery surfaces is determined.
References
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Journal ArticleDOI
Purity of the sacred lotus, or escape from contamination in biological surfaces
TL;DR: It is shown here for the first time that the interdependence between surface roughness, reduced particle adhesion and water repellency is the keystone in the self-cleaning mechanism of many biological surfaces.
Journal ArticleDOI
Bioinspired self-repairing slippery surfaces with pressure-stable omniphobicity
Tak Sing Wong,Sung Hoon Kang,Sindy K. Y. Tang,Elizabeth Smythe,Benjamin Hatton,Alison Grinthal,Joanna Aizenberg +6 more
TL;DR: A strategy to create self-healing, slippery liquid-infused porous surface(s) (SLIPS) with exceptional liquid- and ice-repellency, pressure stability and enhanced optical transparency, applicable to various inexpensive, low-surface-energy structured materials (such as porous Teflon membrane).
Journal ArticleDOI
Designing Superoleophobic Surfaces
Anish Tuteja,Wonjae Choi,Minglin Ma,Joseph M. Mabry,Sarah A. Mazzella,Gregory C. Rutledge,Gareth H. McKinley,Robert E. Cohen +7 more
TL;DR: It is shown how a third factor, re-entrant surface curvature, in conjunction with chemical composition and roughened texture, can be used to design surfaces that display extreme resistance to wetting from a number of liquids with low surface tension, including alkanes such as decane and octane.
Journal ArticleDOI
Biophysics: Water-repellent legs of water striders
Xuefeng Gao,Lei Jiang +1 more
TL;DR: It is shown that it is the special hierarchical structure of the legs, which are covered by large numbers of oriented tiny hairs (microsetae) with fine nanogrooves, that is more important in inducing this water resistance.
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Design and Creation of Superwetting/Antiwetting Surfaces
Xinjian Feng,Lei Jiang +1 more
TL;DR: In this paper, a survey of the recent achievements in the construction of surfaces with special wettabilities, such as superhydrophobicity, super-hydrophilicity and superoleophobicity, are presented.