Organovo Holdings, Inc. (ONVO)

[RandolRocketman]

I would not be terribly surprised to see them begin to talk to folks like Boston Robotics, aka Google Works. And the military about 3D printed tissue overlay-ed on a scout robot's extremity or two. A bot with 3D printed skin structure could gather very telling evidence of biologic(s) in a hot zone where ever it was needed, but too dangerous for humans.
Easy to imagine a team of scientists working toward building 3d Printed skin structured over 3D printed hands. Next step, semi-complete human nervous systems and a robot would be able to capture mountains of tactile data, even to the point of getting damaged. Even though a robot knows his skin is going to burn off if he actuates an overheated valve, he'll do it anyway, knowing the results from the very damage will provide a lot of info about what caused the damage. Will there be 3D printers for repairing 3D printed tissues?
The potential for this technology is extraordinary. For once we could have destructive testing of human tissue, without the need for a human donor.
If you 3D print a human hand with enough complexity, which is merely a matter of time and engineering, would it react to pain with out a central nervous system. i.e. spinal cord?