首页|Fish Skin-Inspired Janus Hydrogel Coating for Drag Reduction
Fish Skin-Inspired Janus Hydrogel Coating for Drag Reduction
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In nature,fishes have evolved functional skins with effective hydrodynamic performance and anti-fouling,facilitating predation and escaping from predators.Although a large number offish scale-inspired structured surfaces have been explored,the incorporation of mucus on the structured surfaces has been largely ignored.Inspired by the skin of Osteichthyes fishes,a Janus hydrogel coating(JHC)is successfully prepared by a two-step UV light irradiation at room temperature.The bottom side of JHC(STH)achieves a shear adhe-sive strength of 103.3±17.5 kPa and can strongly adhere to a large variety of surfaces,including metals,ceramic and polymers.The top surface of JHC(SLH)replicates the structure of cycloid scales,while the nature of hydrogel mimics the mucus on fish skin.SLH possesses prominent mechanical,anti-swelling,anti-fouling and drag reduction properties.The design strategy for JHC has potential applications in numerous fields,like,pipeline transportation,bioengineering,and shipping industry.
Fish skin-inspiredArtificial coatingHydrogelDrag reductionAntibacterial
The Institute of Technological Science,School of Power and Mechanical Engineering,Wuhan University,South Donghu Road 8,Wuhan,Hubei 430072,China
Hubei Key Laboratory of Electronic Manufacturing and Packaging Integration(Wuhan University),Wuhan University,Wuhan,Hubei 430072,China
Department of Urology,Renmin Hospital of Wuhan University,Zhangzhidong Road 99,Wuhan,Hubei 430060,China
Joint Fund of Ministry of Education for Equipment Preresearch中央高校基本科研业务费专项国家自然科学基金国家自然科学基金Open Fund of Hubei Key Laboratory of Electronic Manufacturing and Packaging Integration(Wuhan University)
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