title: Mode switching of a self-propelled camphor disk sensitive to the photoisomerization of a molecular layer on water.
abstract: A simple self-propelled motor on a 4-[[(dodecyloxy)benz-4-yl]azo]benzoic acid (DBA) molecular layer was investigated from the viewpoint of motor control depending on the molecular structure. The nature of the self-motion of a camphor disk on the DBA molecular layer changed depending on the surface pressure (π)-area (A) isotherm of DBA, which in turn changed by the photoisomerization between UV and green lights. The characteristic motion of the camphor disk is discussed in relation to the π-A isotherm of DBA, which changes depending on the photoisomerization as the driving force of motion.
authors.affiliation: Graduate School of Science, Hiroshima University , 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan.
authors.forename: Satoshi
authors.initials: S
authors.lastname: Nakata
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Miyaji
authors.forename: Yui
authors.initials: Y
authors.lastname: Matsuda
authors.forename: Miyu
authors.initials: M
authors.lastname: Yoshii
authors.forename: Manabu
authors.initials: M
authors.lastname: Abe
mesh_terms: D002164:Camphor / Q000737:chemistry*; D008027:Light; D014867:Water / Q000737:chemistry*
chemical_list: D014867:Water; D002164:Camphor