title: Photoswitchable catalysis mediated by dynamic aggregation of nanoparticles.
abstract: Catalytic activity of gold nanoparticles in a hydrosilylation reaction is controlled by irradiation with UV or visible light. When exposed to UV, the particles aggregate and the catalysis is effectively switched "off". When the particles are exposed to visible light, the particles redisperse and catalysis can proceed.
authors.affiliation: Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, USA.
authors.forename: Yanhu
authors.initials: Y
authors.lastname: Wei
authors.forename: Shuangbing
authors.initials: S
authors.lastname: Han
authors.forename: Jiwon
authors.initials: J
authors.lastname: Kim
authors.forename: Siowling
authors.initials: S
authors.lastname: Soh
authors.forename: Bartosz A
authors.initials: BA
authors.lastname: Grzybowski
mesh_terms: D002384:Catalysis; D006046:Gold / Q000737:chemistry*; D008027:Light; D053768:Metal Nanoparticles / Q000737:chemistry*; D008958:Models, Molecular; D008968:Molecular Conformation; D055668:Photochemical Processes
chemical_list: D006046:Gold