Bone Defect (IMAGE) Georgia Institute of Technology Caption X-ray images of bone bridging across a massive bone defect treated with a nanofiber mesh protein release technology developed in the laboratory of Georgia Tech mechanical engineering professor Robert Guldberg. The images show progress after 14 days (top), 28 days (center) and 39 days (bottom). Credit Image courtesy of Robert Guldberg Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.