Researcher Darryl D'Lima of Scripps Clinic with his "bioprinter" adapted from an HP inkjet printer that can produce cartilage. California’s stem cell agency, the California Institute for Regenerative Medicine, awarded him $3.1 million to research the use of embryonic stem cells and artificial embryonic stem cells to generate replacement cartilage. Stem cell researcher Jeanne Loring has collaborated with D’Lima on growing cartilage from stem cells. She described him as “unique” in the ability to incorporate many disciples of science and medicine. “He’s the only orthopedic surgeon I know who has the bandwidth to start thinking way outside the box,” said...