DNA (IMAGE) U.S. National Science Foundation Caption Researchers have been using DNA, the essential molecule for coding genetic information in biology, as a programmable building block -- a molecular LEGO -- to create sophisticated materials with custom-designed functions. Credit Yonggang Ke, Biomedical Engineering Department, Emory University and Georgia Tech 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.