This Ingestible Microbot Is Powered By Stomach Acid 

There's tiny revolution afoot in medicine, where micro- and nano-sized robots will someday cruise around inside our bodies, zeroing in on cancerous cells or repairing damaged but otherwise healthy ones. But before those ideas all become reality, those bots need a power source inside our bodies. That power source could… »1/19/15 4:45pm1/19/15 4:45pm

Robotic Insects Could Build Human Habitats on Mars Before We Arrive

Move over bristlebot »10/29/08 4:00pm10/29/08 4:00pm: Europe's I-SWARM program is developing some similarly small but much smarter micro 'bots that could be used to build human colonies on Mars. The tiny machines would be dispersed in huge numbers, working automatically and independently, and also collaborating together to form larger compound 'bots…

Scientists Create Diode Propulsion Engine for Bloodstream-Swimming Microbots

Science fiction edges ever closer to reality as researchers at NC State University devise a form of propulsion that can accelerate microbots through the human bloodstream. The challenge: not only finding a way to create this engine on such a tiny scale, but to provide power to it. The solution? Diode propulsion, using… »3/15/07 1:37pm3/15/07 1:37pm