Key points from article :
Scientists find a new technique to 3-D bioprint tissue scaffolds out of collagen.
Uses a technique called Freeform Reversible Embedding of Suspended Hydrogels (FRESH).
Couldn’t build an extracellular matrix using existing biofabrication methods until now.
Deposits collagen layer by layer in a support bath, then melts the support bath.
3D printing a full-sized, adult human heart will be possible in the future.
Research by Carnegie Mellon University, published in Science.