World’s smallest, fastest nano motor revealed

Scientists at the Cockrell School of Engineering in Texas have created what is the world’s smallest and fastest nano motor that spins at 18,000 rpms! The microscopic devices can be used to deliver targeted insulin or surgically attack malignant cells in the body. http://www.engadget.com/2014/05/21/worlds-smallest-motor-can-pump-drugs-into-cells/