Sliding-induced adhesion of stiff polymer microfibre arrays. II. Microscale behaviour.

Journal of the Royal Society, Interface
B SchubertRonald S Fearing

Abstract

The adhesive pads of geckos provide control of normal adhesive force by controlling the applied shear force. This frictional adhesion effect is one of the key principles used for rapid detachment in animals running up vertical surfaces. We developed polypropylene microfibre arrays composed of vertical, 0.3 microm radius fibres with elastic modulus of 1 GPa which show this effect for the first time using a stiff polymer. In the absence of shear forces, these fibres show minimal normal adhesion. However, sliding parallel to the substrate with a spherical probe produces a frictional adhesion effect which is not seen in the flat control. A cantilever model for the fibres and the spherical probe indicates a strong dependence on the initial fibre angle. A novel feature of the microfibre arrays is that adhesion improves with use. Repeated shearing of fibres temporarily increases maximum shear and pull-off forces.

References

Jun 23, 2000·Nature·K AutumnR J Full
May 17, 2006·Acta Biomaterialia·Ralph SpolenakEduard Arzt
Jul 18, 2006·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Kellar Autumn, Wendy Hansen
Sep 1, 2006·The Journal of Experimental Biology·K AutumnR Fearing
Sep 1, 2006·The Journal of Experimental Biology·K AutumnM Cutkosky
Oct 10, 2006·Physical Review Letters·C MajidiR S Fearing
Dec 7, 2006·Proceedings of the National Academy of Sciences of the United States of America·Yu TianJacob Israelachvili
Jan 26, 2007·Journal of the Royal Society, Interface·S GorbJ Tuma
Feb 8, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·Burak AksakMetin Sitti
Mar 1, 2007·Journal of the Royal Society, Interface·M Varenberg, S Gorb
Mar 22, 2007·Journal of the Royal Society, Interface·Anne M PeattieRobert J Full
Jun 15, 2007·Journal of the Royal Society, Interface·Nick GravishKellar Autumn
Jan 24, 2008·Journal of the Royal Society, Interface·Jongho LeeRonald S Fearing

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Citations

Jan 24, 2008·Journal of the Royal Society, Interface·Jongho LeeRonald S Fearing
Sep 20, 2008·Journal of the Royal Society, Interface·Bin ChenHuajian Gao
Mar 28, 2009·Journal of the Royal Society, Interface·Aaron ParnessMark Cutkosky
Jun 6, 2009·Journal of the Royal Society, Interface·Nick GravishKellar Autumn
Feb 4, 2011·Journal of the Royal Society, Interface·Ginel C HillT W Kenny
Apr 4, 2014·Journal of the Royal Society, Interface·Andrew G Gillies, Ronald S Fearing
Dec 12, 2013·Advanced Materials·Zhuxia RongPola Goldberg-Oppenheimer
Mar 30, 2010·Advanced Materials·Luciano F BoeselAránzazu del Campo
May 27, 2016·Scientific Reports·Zhenping HeAnand Jagota
Nov 5, 2016·Advanced Science·Zhen GuShutao Wang
Mar 13, 2012·ACS Applied Materials & Interfaces·Shihao HuXiaosheng Gao
Jan 23, 2014·ACS Applied Materials & Interfaces·Seungwan SeoJongho Lee
Aug 19, 2011·Langmuir : the ACS Journal of Surfaces and Colloids·Andrew G Gillies, Ronald S Fearing
Jul 24, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·John TamelierKimberly L Turner
Jun 22, 2013·ACS Applied Materials & Interfaces·Andrew G GilliesRonald S Fearing
Dec 31, 2016·ACS Applied Materials & Interfaces·Yue WangDan Sameoto
Dec 31, 2008·Small·Michael P MurphyMetin Sitti
Nov 18, 2009·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Noshir S PesikaJacob Israelachvili
Mar 5, 2020·Advanced Materials·Brian ElderYong Lin Kong
Sep 11, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·Jongho Lee, Ronald S Fearing
Jun 16, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Hongbo ZengJacob N Israelachvili
Jun 14, 2013·The Journal of Experimental Biology·Izaak D NevelnMalcolm A MacIver
Sep 16, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Nichole NadermannC-Y Hui
Aug 13, 2011·ACS Applied Materials & Interfaces·Esben ThormannJan Linnros
Mar 24, 2018·ACS Applied Materials & Interfaces·Younghyun ChoShu Yang

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