Kevin Brenner, Georgia Tech (IMAGE) Georgia Institute of Technology Caption Graduate research assistant Kevin Brenner holds a graphene sample under study in the Georgia Tech Nanotechnology Research Center. The cryogenic probe station shown behind him is used to study doping effects in the material. Credit Georgia Tech Photo: Gary Meek 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.