Chemists make bicycle-like molecular drive
(PHYSorg.com Chemistry)

Molecular cars have been known for some time, but scientists from the University of Amsterdam`s Van `t Hoff Institute for Molecular Sciences (HIMS) and the University of Murcia have now synthesized molecules that operate like the pedals of a bicycle. Fueled by light, the molecules can be used as molecular switches that pave the way for the design of functional molecular systems effective under severe spatial restrictions.