A team of researchers from the U.S. and U.K. have perfected a new technique to grow a fully formed human ear, using patients’ own stem cells. They begin with a 3D-printed polymer mold of an ear, which is then implanted with stem cells drawn from fat. As these stem cells differentiate into cartilage, the polymer scaffold degrades, leaving a full “ear” made of mature cartilage cells.
Read more in Smithsonian mag
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