3D printing is getting easier, more cost effective, and more household friendly every year. Some of its most impressive applications, though -- like its potential in the world of medicine -- won't be making their home debuts anytime soon. This is because while printing, say, a Mario statue in your Makerbot is very simple, printing things on a nanometer scale is still very hard.
Doable, but very, very hard. Researchers at the Vienna University of Technology
have made a step toward simplifying that task, though, using a laser beam to place single molecules on structures just a few nanometers wide