title: Switching adhesion and friction by light using photosensitive guest-host interactions.
abstract: Friction and adhesion between two β-cyclodextrin functionalized surfaces can be switched reversibly by external light stimuli. The interaction between the cyclodextrin molecules attached to the tip of an atomic force microscope and a silicon wafer surface is mediated by complexation of ditopic azobenzene guest molecules. At the single molecule level, the rupture force of an individual complex is 61 ± 10 pN.
authors.affiliation: INM - Leibniz-Institute for New Materials, Saarland University, Campus D2 2, 66123 Saarbrücken, Germany. roland.bennewitz@inm-gmbh.de.
authors.forename: Johanna
authors.initials: J
authors.lastname: Blass
authors.forename: Bianca L
authors.initials: BL
authors.lastname: Bozna
authors.forename: Marcel
authors.initials: M
authors.lastname: Albrecht
authors.forename: Jennifer A
authors.initials: JA
authors.lastname: Krings
authors.forename: Bart Jan
authors.initials: BJ
authors.lastname: Ravoo
authors.forename: Gerhard
authors.initials: G
authors.lastname: Wenz
authors.forename: Roland
authors.initials: R
authors.lastname: Bennewitz