Ludovico Cademartiri studied materials science at the University of Parma, Italy, and chemistry at the University of Toronto, Canada. Currently he is postdoc in the group of George M. Whitesides at Harvard University. His research interests include nanocrystal chemistry,processing and self-assembly, contrast agents, mesoporous materials, photonic crystals, quasicrystals and soil science. Despite his young age he has already received two Graduate Student Awards from the Materials Research Society, the Canada Research Chair Graduate Prize in Chemistry, the Canadian Society of Chemistry Prize for Graduate Work in Inorganic Chemistry, the American Chemical Society DIC Young Investigator Award and the Governor General Gold Medal, a prize conferred annually to the three most academically accomplished graduate students of the University of Toronto. He is author of 16 publications in international journals, he gave numerous invited lectures and he is coauthor of two textbooks on nanochemistry. Geoffrey A. Ozin studied chemistry at Kings College University of London and Oriel College University of Oxford. He is Government of Canada Research Chair in Materials Chemistry and Distinguished University Professor at the University of Toronto, Canada. He has made exceptionally important contributions to the fields of self-assembly, materials chemistry, biomimetics, photonic crystals, nanochemistry and nanomotors. The significance of his research has recently been recognized by Canada`s CIC SCI LeSueur Memorial Award, NSERC Inaugural Brockhouse Interdisciplinary Prize 2005, E.W.R. Steacie CSC Award 2002 and CIC Medal 2001, Germany`s Alexander von Humboldt Award 2005, and Britain`s RSC Materials Chemistry Award 2002. He serves on the editorial advisory board of journals such as Advanced Materials and Journal of Materials Chemistry and is an experienced book author. He has published 600 articles and obtained 10 US patents. His close ties with industry have resulted in numerous inventions and technology transfer. He is co-founder of Opalux, a Toronto company commercializing photonic crystal products that have emerged from his research. The ISI citation impact of his papers place his research in the top 100 and he is an ISI Top-Ten Materials Scientist 1996-2006.