標題: Thermally switchable adhesions of polystyrene-block-poly (n-isopropylacrylamide) copolymer pillar array mimicking climb attitude of geckos
作者: Chen, Jem-Kun
Wang, Jing-Hong
Chang, Jia-Yaw
Fan, Shih-Kang
材料科學與工程學系
Department of Materials Science and Engineering
公開日期: 17-九月-2012
摘要: Inspired by the gecko foot pad, we fabricated polystyrene-block-poly(N-isopropylacrylamide) (PS-b-PNIPAAm) copolymer pillar array to mimic climbing attitude of a gecko, alternately attach to and detach from a surface. The pillar array structure of the PS segment significantly enhances both of the hydrophilic and hydrophobic property of PNIPAAm segment tips at 25 and 50 degrees C, respectively, which could generate alternating adhesive forces of approximately 120 and 11 nN. The dramatic change in adhesive and friction force difference at 25 and 50 degrees C may guide the design of bio-inspired artificial analogues, which could approach gecko's climbing behavior. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4754135]
URI: http://dx.doi.org/10.1063/1.4754135
http://hdl.handle.net/11536/20316
ISSN: 0003-6951
DOI: 10.1063/1.4754135
期刊: APPLIED PHYSICS LETTERS
Volume: 101
Issue: 12
結束頁: 
顯示於類別:期刊論文


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