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3-D Bioprinting

Biomedical engineer Adam Feinberg at Carnegie Mellon University has come up with a technique that expands the use of 3-D printing technology to print a soft gel inside a second "support" gel. This allowed him to print delicate soft structures and could one day allow researchers to print heart tissue.

This video is part of the Science of Innovation series produced by NBC Learn in partnership with the National Science Foundation and the United States Patent and Trademark Office.

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