哈尔滨工业大学（深圳）学术讲座

演讲人Speaker：李万博教授

题目Title: Nature-inspired multiscale superwetting surfaces: design and bionic manufacturing

时间Date：2025年 5月 24日       Time：16：00 ~ 17：00

地点Venue： C432  

*********  本讲座提供学术小票，欢迎各位老师及同学参加    *************

内容摘要Abstract：

      As the core portion with which other things first interacts, biologic surfaces underpin the frequent dealing of mass, energy, and information, which allows living beings to avoid harm and harvest limited resources. The ingenious functions including antifouling, camouflage, cooling, light harvest, water harvest, and locomotion originated from the multiscale superwetting structures, and have found broad applications in aerospace, naval navigation, nuclear power, and biomedicine. However, traditional research faces challenges of the small size effect and the resultant poor structural mechanical stability and low mass transfer efficiency. Additional concerns are the scalability and efficiency of the method for fabricating biomimetic structures. In this talk, we first show two surface designs, including a monolithic perfluorinated surface (MPS) design and a cellular design. The use of nonlinear behavior and mechanochemical control of surface components enhanced the structural and functional stability of superhydrophobic structures, and allow us to regulate droplet, bubbles, and particle with minimized sizes. The design principles are contrary to conventional wisdom—using highly rigid structures to bear the concentrated stress yet failing once slight deformation and fracture occur. Second, we present two manufacturing methods, i.e., crack engineering and template-assisted self-assembly for precisely fabricating 3D hierarchical biomimetic structures, yet without compromising the scalability and efficiency. Our fundings potentially lay down the  theoretical basis and technological support for the low-carbon and intelligent applications of nature-inspired surfaces.

个人简介(About the speaker):

Dr LI Wanbo is currently an associate professor in the school of Mechanical Engineering at Shanghai Jiao Tong University. He obtained B.S. and M.S, degrees from Sun Yet-Sen University in 2011 and 2015, and Ph. D. degree from Hong Kong Baptist University in 2019. After three-year postdoc training at City University of Hong Kong, he joined Shanghai Jiao Tong University in 2022. His research interests includes bioinspired surface and interface, advanced and non-conventional bionic manufacturing, microfluidics and sensors. His recent publications include PNAS 2019, Nat. Commun. 2023, and The innovation 2023, etc., and has been cited over 800 times. His innovative concept of abrasion-resistant and transparent superhydrophobic coatings has been recognized by Spark Award of Huawei company. He now serves as a youth committee in Tribology Branch of the Chinese Society of Mechanical Engineering, and as a guest editor of Biomimetics. Furthermore, he has been selected into Pujiang Talent Scheme and been recognized as a overseas high-level talents in Shanghai city.