3D Printing is becoming more widespread every day and it seems there is no end to the applications. Scientists are working on a printer that can build body parts using cells as the print medium.

“The printer is meant to be used in regenerative medicine. Instead of borrowing body parts from someone else — or yourself — the printer will just make a new part for you. The printer is loaded with cartridges of “bio-ink” a substance that acts as a kind of scaffolding for the cells to retain their shape. A sophisticated computer is linked to the printer that is pre-programmed with the 3D blueprint of whatever is being made. The computer instructs the printer to lay down two dimensional layers of bio ink and cells that eventually form into the 3D body part.

With the successful printing of a human vein, the scientists are looking forward to moving on to larger organs. Though the printing of an entire lung or heart is far off, the technology has been proven to be viable.”

via inhabit

The Economist has a great write-up on printing body parts as well.