Lucian Baia is Senior Researcher and Associate Professor at the Centre of Nanostructured Materials and Bionanointerfaces, Institute of Interdisciplinary Research in Bio-Nano-Sciences, Babes-Bolyai University, Cluj-Napoca, Romania. His research interests focus on materials with controllable morphology and structure for environmental and biomedical applications, including photocatalysis and tissue engineering. Zsolt Pap is a Researcher based at Bolyai University, Faculty of Physics, Department of Physics and Technology of Advanced Materials, Romania. His research interests lie in the areas of nanostructured materials and photoenergy. Klara Hernadi received her MSc degree in chemistry from the University of Szeged in 1983, PhD/Candidate of Chemical Science from the Hungarian Sciences in 1993, and Doctor of Chemical Science in 2004 (HAS). She had short-term employments at Texas A&M University, at Facultés Universitaires Notre-Dame de la Paix (Namur Belgium) and at Ecole Polytechnique Federale de Lausanne (Switzerland). Currently she is the leader of Research group of Environmental Chemistry as a full professor at University of Szeged. Her current research interest covers various topics in the field of nanocrystalline materials (carbon nanotubes, hollow semiconductors, nanocomposites, etc.). Monica Baia is Associate Professor of Molecular Spectroscopy at Babes-Bolyai University, Romania. Her research focuses on spectroscopy for pharmaceutical applications.