13/06/2012
http://www.newscientist.com/blogs/nstv/2012/06/how-worms-are-pioneering-remote-control-medicine.html
If you want to make the worm turn, try using magnets. By implanting nanoparticles in nerve cells in a nematode's head, Arnd Pralle and his team from the State University of New York in Buffalo can make a wriggling worm alter its course when exposed to a magnetic field.