Light scattering can be used to rotate a motor made of gold nanorods to very high speeds, according to new experiments by researchers in Sweden. The devices, which rotate at up to 42 kHz (the fastest ever recorded for any man-made or natural motor in aqueous solution), might find use in a variety of advanced nano-optomechanical sensing and actuation applications, including those in biology……..
http://nanotechweb.org/cws/article/tech/63301