3-D printing of organs sounds like something out of a sci-fi movie. This Popular Science article discusses the potential of this technology, "In two decades, 3-D printing has grown from a niche manufacturing
process to a $2.7-billion industry, responsible for the fabrication of
all sorts of things: toys, wristwatches, airplane parts, food. Now
scientists are working to apply similar 3-D–printing technology to the
field of medicine, accelerating an equally dramatic change. But it's
much different, and much easier, to print with plastic, metal, or
chocolate than to print with living cells." They also have this synopsis, "Five Body Parts Scientists Can 3-D Print." And this article is available "Bioprinting Toward Organ Fabrication: Challenges and Future Trends" from IEEE Transactions on Biomedical Engineering. You will need to sign into Murray State to read this one.