Microrobots use the power of bacteria to avoid obstacles
 

We don't need to scale down Google's self-driving system to make microrobots that can swim in fluid while avoiding obstacles. Drexel University professor MinJun Kim and his team of engineers have discovered how to use bacteria to do so. See, Serratia...

http://www.engadget.com/2016/03/16/b...ed-microrobot/