bbioprinting (IMAGE) Penn State Caption Bioprinting during surgery of bone constructs used as a controlled gene co-delivery platform for the repair of skull defects. Credit Dong Heo, Kyung Hee University; Ozbolat Lab, Penn State. / Penn State Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted. License CC BY-NC-ND 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.