Dr. Luis Liz-Marzan is currently a Professor of Physical Chemistry at the University of Vigo (Spain). He is an experimental physical chemist with research expertise in the areas of synthetic colloid science and nanoassembly. His current research activities include the synthesis of core-shell nanoparticles of various nature, assembly of nanoparticles in 2D and 3D, photonic materials, and tailored magnetic thin films. He has recently organized workshops on "Nanoparticle-Based Nanostructures" and "Dynamic Interactions in Quantum-Dot Systems", and was guest editor of a special issue of the MRS Bulletin on "New Aspects in Nanocrystal Research" (December, 2001). He has published over 50 research papers and review articles on several aspects of nanoscience. Dr. Prashant V. Kamat is a Principal Scientist at Notre Dame Radiation Laboratory carrying out fundamental research in the areas of semiconductor and metal nanostructures and their applications in light energy conversion and environmental remediation. He obtained his Ph.D. degree from Bombay University (1979). He has been involved in nanoparticle research for more than two decades. He has published over 250 research articles and review articles and edited a book Semiconductor Nanoclusters: Physical, Chemical and Photocatalytic Aspects (Elsevier Science). He is the co-editor of the journal, Research on Chemical Intermediates, and serves on the editorial advisory boards of Journal of Physical Chemistry, Langmuir and Fullerene Science and Technology. He also serves as Chairman of Fullerenes, Nanotubes and Carbon Nanostructures Division of the Electrochemical Society.