Until now, the stumbling block in tissue engineering has been supplying artificial tissue with nutrients that have to arrive via capillary vessels.

A team at the Fraunhofer Institute in Germany has solved that problem using 3D printing and a technique called multiphoton polymerisation.

via BBC News – Artificial blood vessels created on a 3D printer.

Though they make chocolate and plastic dingbats of all kinds, this kind of creation by a Maker is revolutionary.