Jonathan Coleman and Son, Oisin (IMAGE) AMBER Centre Caption Prof. Jonathan Coleman is with his graphene-putty alongside his son Oisin, trying out the novelty children's material silly putty. Credit AMBER, Trinity College Dublin 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.