Printing a human kidney: Anthony Atala

Surgeon Anthony Atala demonstrates an early-stage experiment that could someday solve the organ-donor problem: a 3D printer that uses living cells to output a transplantable kidney. Using similar technology, Dr. Atala’s young patient Luke Massella received an engineered bladder 10 years ago; we meet him onstage. (Recorded at TED2011, March 2011, in Long Beach, California. Duration:

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