Challa Kumar is currently the Group Leader of Nanofabrication at the Center for Advanced Microstructures and Devices (CAMD), Baton Rouge, USA. His research interests are in developing novel synthetic methods for functional nanomaterials and innovative therapeutic, diagnostic and sensor tools based on nanotechnology. He has eight years of industrial R&D experience working for ICI plc and UB Ltd prior to joining CAMD in 2001. He has worked at the Max Planck Institute for Biochemistry in Munich, Germany, as a post doctoral fellow and at the Max Planck Institute for Kohlenforschung, Muheim, German...