Robotic molecular architects

In the sci-fi world, nanotechnology often talked of nanoscopic machines building other nanoscopic machines, now that fiction is becoming fact as scientists at the University of Manchester, create a molecular robot that can synthesize other molecules. David Leigh and colleagues have constructed their robot from 150 carbon, hydrogen, oxygen, and nitrogen atoms. The robot follows instructions given to it by various inputs working like a car assembly line robot but where individual atoms and small molecules are the components and the control commands are themselves chemical inputs rather than computer code.