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Frog-inspired hierarchical surface pattern for adhesion and friction

主讲人:薛龙建

时间:2018.10.23下午14:30-15:30

地点:国家重点实验室BC楼四楼中庭会议室

主讲人介绍:薛龙建,2004年,从武汉大学化学基地班获学士学位,2010年从365bet科学院长春应用化学研究所获得博士学位,2009-2015在德国多所大学和研究所(亚琛工大、奥斯纳布吕克大学、基尔大学、马克斯普朗克聚合物研究所)从事科学研究工作,期间获得了洪堡学者奖学金和马普学者奖学金。2015年获得中组部“千人计划”青年项目,受聘武汉大学动力与机械学院材料系。研究领域包括聚合物薄膜、微纳结构制备、仿生功能材料、增材制造等。

主要内容:In order to survive into the natural environment, tree and torrent frogs have to attach, climb and jump in humid or flooded environments. For this purpose, their limbs developed digits with expanded adhesive pads and specialized surface topography. Irrespectively of habitat and phylogeny, tree and torrent frog digits display hexagonal arrays of (soft) epithelial cells separated by narrow channels and crossed by densely packed (hard) keratin fibrils. Inspired by the hierarchical structures found on tree frog’s toe pad, micro- and nano-patterns with a hybrid and anisotropic structure have been realized. Depending on the specialized surface design, enhanced adhesion and/or friction could be achieved. The results here give a hint to the design of new materials with both strong adhesion and friction based on composite structures with anisotropic designs. 

主办单位:材料化学国家重点实验室


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