Organ regeneration, bioartificial organs, regenerative medicine, and the related possibility of 3-D printing of replacement human organs are all grist in my science technothriller, A REMEDY FOR DEATH: Playing God with body, soul, and biotech.
via www.a-remedy-for-death.com
Here's an article on experiments leading to the possibility of 3D printing replacement human hearts, using the patient's own tissues as input.