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Int. J. Mol. Sci. 2014, 15(9), 14909-14920;

Microscopic Pillars and Tubes Fabricated by Using Fish Dentine as a Molding Template

The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518057, China
Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
Department of Mechanical and Biomedical Engineering, City University of Hong Kong, Kowloon Tong, Hong Kong, China
Centre for Advanced Structural Materials (CASM), City University of Hong Kong, Hong Kong, China
Author to whom correspondence should be addressed.
Received: 29 June 2014 / Revised: 7 August 2014 / Accepted: 14 August 2014 / Published: 25 August 2014
(This article belongs to the Special Issue Biomimetic and Functional Materials)
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Biomaterials in nature exhibit delicate structures that are greatly beyond the capability of the current manufacturing techniques. Duplicating these structures and applying them in engineering may help enhance the performance of traditional functional materials and structures. Inspired by gecko’s hierarchical micro- and nano-fibrillar structures for adhesion, in this work we fabricated micro-pillars and tubes by adopting the tubular dentine of black carp fish teeth as molding template. The adhesion performances of the fabricated micro-pillars and tubes were characterized and compared. It was found that the pull-off force of a single pillar was about twice of that of the tube with comparable size. Such unexpected discrepancy in adhesion was analyzed based on the contact mechanics theories. View Full-Text
Keywords: adhesion; contact mechanics; hierarchical structures; biomimetics adhesion; contact mechanics; hierarchical structures; biomimetics

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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Li, W.; Liu, X.; Lu, Y.; Yao, H. Microscopic Pillars and Tubes Fabricated by Using Fish Dentine as a Molding Template. Int. J. Mol. Sci. 2014, 15, 14909-14920.

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