The co-effect of microstructures and mucus on the adhesion of abalone from a mechanical perspective  

作　　者：Jing Li Chuandong Ma Jun Liu Xiangwei Dong Jianlin Liu 

机构地区：[1]College of Mechanical and Electrical Engineering,China University of Petroleum(East China),Qingdao,China [2]College of Pipeline and Civil Engineering,China University of Petroleum(East China),Qingdao,China

出　　处：《Biosurface and Biotribology》2021年第4期180-186,共7页生物表面与生物摩擦学（英文）

基　　金：National Natural Science Foundation of China,Grant/Award Numbers:11672335,51975586;Fundamental Research Funds for the Central Universities,Grant/Award Number:19CX02018A。

摘　　要：Reliable and reversible adhesion underwater is challenging due to the water molecules and weak layers of contaminants at the contact interface,which requires to deepen the un-derstanding of wet adhesion of biological surfaces.Herein,the co-effect of microstruc-tures and mucus of abalone foot on wet adhesion is investigated from both experimental and theoretical perspectives.The morphologies,adhesion force and coefficient of friction indicate that the mucus in adhesion zone is crucial for successful attachment of abalone based on capillary forces and viscous forces,and the mucus in non-adhesion zone with lower adhesion force and friction coefficient may behave as a lubricant for the loco-motion.The theoretical calculation manifests that the microstructures may help abalone to form multiple liquid bridges with the secreted mucus,and significantly increase the wet adhesion force of abalone.These findings will bring profound views into the underlying mechanisms of biological surface adhesion.

关 键 词：ABALONE CAPILLARY force microstructure MUCUS WET ADHESION 

分 类 号：TG1[金属学及工艺—金属学]