Costas Demetzos is a Professor of Pharmaceutical Nanotechnology at the National and Kapodistrian University of Athens. He serves as Director of the Laboratory of Pharmaceutical Technology and since 2008 he has served as President of the Hellenic Pharmaceutical Society (HPS). His research interests are primarily in pharmaceutical nanotechnology, physical pharmacy, nanomedicine, thermodynamics and biophysics of nanoplatforms, pharmaceutical compounding and regulatory aspects. He participates as a member of Scientific Organizing Committees and as a President of International and European scientific Conferences while being an evaluator in many National and International committees. He was an elected member of the ExCo of EUFEPS (Network Coordinator) (2013–2016). At present, he is a member of the International Advisory Committee for Alzheimer’s Disease (2019–present), and of the Hellenic Initiative Against Alzheimer Disease (HIAAD) (2019–present). In 2018, Costas Demetzos was honored with an award by the Order of Sciences of the Academy of Athens for his scientific achievements in Pharmaceutical Nanotechnology. In 2021, Prof. Demetzos was elected as an Ordinary member of Class IV-Natural Sciences of the European Academy of Sciences and Arts (Academia Scientiarium et Artium Europaea). Since 2023, he has acted as Associate Editor of the prestigious Journal of Liposome Research.