You’ll have heard of 3D printing. Now there’s nano 3D printing, which uses a laser to print things as small as 100 nanometres – about 1000 times thinner than a human hair. It is far more revolution than evolution. BESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswy Lab-grown retinas, armies of magnetically-controlled, cancer-busting robots, and hospitals printing out new bones as soon as someone goes into surgery are some of the fantastic promises the technology holds. It is simple enough to print something big. Nano printing allows you to make a big object by printing lots of tiny objects and joining them together. This allows you to imbue that big object with special powers. A 3D printed bone scaffold (left), and a bone scaffold being colonised by cells (right, cells in green). The scaffold is about the width of a human hair.Credit:Nanoscribe The technology was pioneered by the Karlsruhe Institute of Technology’s Professor Martin Wegener, who […]

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