3-D Model of the New Smart Material (IMAGE) University of Malta Caption This is a 3-D model of the the new class of auxetic metamaterials that defy logic and can be used to create better skin grafts and new smart materials. Credit Metamaterials Unit, Department of Chemistry, University of Malta 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.