You can already buy 3D-printed houses, cars, rocket engines, sneakers, and, of course, sex robots. But can I interest you in a 3D-printed kidney? It’s an offer that Vital3D plans to make a reality.

Progress towards 3D-printed organs has been slow due to challenges like vascularization and cell viability. 3D bioprinting has successfully implanted hollow organs like tracheas and bladders, but ...