… researchers from the University of Missouri have a 3D printer that could one day recreate human organs by using a cocktail made from human cells. If your liver was failing, for instance, cells from your liver could be used to print a healthy one, or cells from your heart could be used to create a new heart, and so on.

Right now, all of that is still a long way off. What has been done, however, is recreate a human vein using “bio-ink,” or the liquid sludge that’s produced using human cells and printed onto “bio-paper.” This paper slowly dissolves as the layers of ink bind and start to take on the shape us humans would recognize.

Inhabitat | Scientists Use 3D Printer To Create First “Printed” Human Vein
DVICE | 3D printer uses bio-ink to create the first ‘printed’ human veins