If you’ve followed my Corrosive Knights books, you know that nano-technology is a big element within them (Note: I’m not claiming to be the only person to come up with the concept or use it in my stories!).

As they say, fiction is approaching reality as scientists have developed tiny nano-motors that can move inside cells, a first step toward targeting and destroying, possibly, cancer cells…among others:

http://www.cnn.com/2014/02/12/health/nanomotors-cells-science/index.html