Derek Urwin (IMAGE) California NanoSystems Institute Caption Adjunct professor and firefighter Derek Urwin is using his knowledge of chemistry to improve firefighter health and safety. Credit Reed Hutchinson/UCLA Usage Restrictions none License Original 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.