Military researchers have developed techniques to regenerate limbs and organs, using nanoscaffolds. I like the idea of growing a new heart.
I have to say, though, that it's not the headline I would have chosen. Those military researchers are going to look kind of funny with those new limbs.
Wow. It's impossible to resist speculating where this might lead:
What about replacing body parts lost to disease or surgery? What about in vitro growth?
A hundred bucks says it will be used for breast enhancement within five years.