Can Erkey works in the Department of Chemical and Biological Engineering at Koc University in Istanbul, Turkey. Michael Türk received his Dipl.-Ing. degree in Chemical Engineering from the Universität Karlsruhe (Technische Hochschule). In 1993 M. Türk completed his PhD thesis in the field of thermodynamic properties and intermolecular interactions of binary gaseous mixtures. In his professorial dissertation of 2001 a theory was proposed allowing understanding of the relationship between process conditions and the properties of organic particles produced by supercritical fluid based processes. His current research activities are focused on the use of supercritical fluids (mainly CO2 and H2O) as media to prepare organic, inorganic and metallic materials by physical transformation or chemical reaction and the development of new, energy-efficient and environmentally-friendly strategies to create novel products with extraordinary performance for pharmaceutical, energy and biomedical applications. So far, M. Türk has authored 125 articles (including 13 book chapters); has graduated 20 PhD students (10 as supervisor and 10 as co-advisor) and more than 50 Diploma / Master and 15 Bachelor students.