A Chiang Mai University team has developed a motor so small it will power a microscopic robot on an expedition through human blood vessels.Boffins at the university's science faculty describe their invention as a "nanomotor". It will drive a medical robot about the size of a blood cell on a tour of the maze of human veins and capillaries.A "nanobot" - or nanotechnology robot - developed at Kent State University in Ohio, United States will be powered by a motor made of an extremely fine and pure ceramic created at Chiang Mai University. In addition to powering the nanobot, the...