title: Gecko-inspired but chemically switched friction and adhesion on nanofibrillar surfaces.
abstract: Chemically switched friction nano-fibrillar surfaces (SiNWAs-PSPMA & SiNWAs-PMAA arrays) can be constructed by finely decorating ordered Si nanowire arrays with responsive polymer brushes. As expected, these surfaces sense humidity or pH smartly and show reversible friction switching, based on swelling and shrinking of the polymer brushes, which is successfully monitored by AFM in liquid media.
authors.affiliation: State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; University of the Chinese Academy of Sciences, Beijing, 100049, China.
authors.forename: Shuanhong
authors.initials: S
authors.lastname: Ma
authors.forename: Daoai
authors.initials: D
authors.lastname: Wang
authors.forename: Yongmin
authors.initials: Y
authors.lastname: Liang
authors.forename: Baoquan
authors.initials: B
authors.lastname: Sun
authors.forename: Stanislav N
authors.initials: SN
authors.lastname: Gorb
authors.forename: Feng
authors.initials: F
authors.lastname: Zhou
mesh_terms: D000268:Adhesiveness; D000818:Animals; D040761:Biomimetic Materials / Q000737:chemistry*; D004573:Electrolytes; D017276:Friction; D006813:Humidity; D006863:Hydrogen-Ion Concentration; D008116:Lizards; D053768:Metal Nanoparticles / Q000737:chemistry; D018625:Microscopy, Atomic Force; D057139:Nanofibers / Q000737:chemistry; D036103:Nanotechnology / Q000379:methods*; D053770:Nanowires; D011108:Polymers / Q000737:chemistry; D012825:Silicon / Q000737:chemistry; D013499:Surface Properties
chemical_list: D004573:Electrolytes; D011108:Polymers; D012825:Silicon
keywords: adhesion; friction; gecko-inspired; nanofibril arrays; polymer brushes; switches