Fish Skin-Inspired Janus Hydrogel Coating for Drag Reduction  

作　　者：Yurong Zhang Lijun Li Ruteng Wang Junwei Liu Zhen Lin Gang Li Hongtao Liu Yifeng Lei Yunhe Xiong Yan Zhao Longjian Xue 

机构地区：[1]The Institute of Technological Science,School of Power and Mechanical Engineering,Wuhan University,South Donghu Road 8,Wuhan,Hubei,430072 China [2]Hubei Key Laboratory of Electronic Manufacturing and Packaging Integration(Wuhan University),Wuhan University,Wuhan,Hubei,430072 China [3]Department of Urology,Renmin Hospital of Wuhan University,Zhangzhidong Road 99,Wuhan,Hubei,430060 China [4]Department of Urology,Renmin Hospital of Wuhan University,Zhangzhidong Road 99,Wuhan,Hubei 430060,China

出　　处：《Chinese Journal of Chemistry》2024年第8期867-872,共6页中国化学（英文版）

基　　金：supported by Joint Fund of Ministry of Education for Equipment Pre-research(8091B022230);the Fundamental Research Funds for the Central Universities(2042022kf1220);National Natural Science Foundation of China(62161160311,51973165);Open Fund of Hubei Key Laboratory of Electronic Manufacturing and Packaging Integration(Wuhan University)(EMPI2023020).

摘　　要：Comprehensive Summary,In nature,fishes have evolved functional skins with effective hydrodynamic performance and anti-fouling,facilitating predation and escaping from predators.Although a large number of fish 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 adhesive 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.

关 键 词：Fish skin-inspired Artificial coating HYDROGEL Drag reduction ANTIBACTERIAL 

分 类 号：TQ427.26[化学工程]