Ultrasonically propelled nanorods spin dizzyingly fast
Tuesday, July 22, 2014 - 15:00
in Physics & Chemistry
Vibrate a solution of rod-shaped metal nanoparticles in water with ultrasound and they'll spin around their long axes like tiny drill bits. Why? No one yet knows exactly. But researchers have clocked their speed -- and it's fast. At up to 150,000 revolutions per minute, ten times faster than any nanorotor ever reported.