title: A molecular elevator.
abstract: We report the incrementally staged design, synthesis, characterization, and operation of a molecular machine that behaves like a nanoscale elevator. The operation of this device, which is made of a platformlike component interlocked with a trifurcated riglike component and is only 3.5 nanometers by 2.5 nanometers in size, relies on the integration of several structural and functional molecular subunits. This molecular elevator is considerably more complex and better organized than previously reported artificial molecular machines. It exhibits a clear-cut on-off reversible behavior, and it could develop forces up to around 200 piconewtons.
authors.affiliation: California NanoSystems Institute and Department of Chemistry and Biochemistry, University of California, Los Angeles, 405 Hilgard Avenue, Los Angeles, CA 90095, USA.
authors.forename: Jovica D
authors.initials: JD
authors.lastname: Badjic
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Balzani
authors.forename: Alberto
authors.initials: A
authors.lastname: Credi
authors.forename: Serena
authors.initials: S
authors.lastname: Silvi
authors.forename: J Fraser
authors.initials: JF
authors.lastname: Stoddart