I stumbled across a video on TED about printing a human kidney which researching New Languages. Atala talks first about using a desktop inkjet printer to print a bunch of cells, using cells instead of ink. The next step is to print the cells directly onto the wound followed by the most complex stage of printing organs to be used for transplant. The video is really interesting and well worth a watch. Obviously the technology is still very far away from actually being put into clinical practice.