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Adhesion: Gecko‐Inspired but Chemically Switched Friction and Adhesion on Nanofibrillar Surfaces (Small 9‐10/2015)
Author(s) -
Ma Shuanhong,
Wang Daoai,
Liang Yongmin,
Sun Baoquan,
Gorb Stanislav N.,
Zhou Feng
Publication year - 2015
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201570055
Subject(s) - gecko , adhesion , adhesive , materials science , seta , nanotechnology , substrate (aquarium) , polymer , silicon , electrolyte , polymer science , composite material , layer (electronics) , chemistry , optoelectronics , electrode , ecology , biology , oceanography , botany , geology , genus
The gecko's foot generates an adhesive force with numerous keratinous setae which form a large real contact area with the substrate. While geckos can switch the adhesion freely, the detachment of gecko‐inspired synthetic adhesives is often difficult, and relies on external mechanical control. On page 1131, D. Wang, S. N. Gorb, F. Zhou, and co‐workers develop chemically responsive nanofibrillar surfaces: silicon nanowires grafted with polymers, in which attachment and detachment are chemically triggered in response to pH, humidity, or electrolyte solution.