Scientists from Carnegie Mellon University (CMU), Pennsylvania, have used a novel 3D bioprinting method to build functional parts of the human heart. According to a study published in Science, an advanced version of Freeform Reversible Embedding of Suspended Hydrogels (FRESH) technology was developed to 3D print collagen for small blood vessels, valves, and beating ventricles. FRESH technology is patented to FluidForm, a Massachusetts-based medical startup. Professor Adam Feinberg, CTO and co-founder, FluidForm, and Principal Investigator at the Regenerative Biomaterials and Therapeutics Group, CMU, said: “We now have the ability to build constructs that recapitulate key structural, mechanical, and biological properties...