There have been amazing advances in the world of tissue engineering. Joseph P. Vacanti and Robert Langer wrote on the topic ten years ago (it was greeted with much more skepticism then) in Scientific American. Now they are back with an update on the state of tissue engineering.
Today nearly 50 million people in the U.S. are alive because of various forms of artificial organ therapy, and one in every five people older than 65 in developed nations is very likely to benefit from organ replacement technology during the remainder of their lives.
