Self-Aware Metamaterial System (IMAGE) University of Pittsburgh Caption An illustration of the novel self-aware metamaterial system as used in a coronary artery stent. The design can sense restenosis when used in a stent, and the same design can be used at a large scale in bridge beams to to self-monitor for defects on the structure. Credit iSMaRT Lab 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.