Dr. George Kenanakis is a Principal Researcher at the Institute of Electronic Structure and Laser, Foundation for Research and Technology—Hellas, where he joined in 2006. He obtained both his M.Sc. and Ph.D. from the University of Crete in 2007 and 2011, respectively. His main research interests range from applied physics and electromagnetism (focused on the electromagnetic wave propagation in composite media, with emphasis on metamaterials, photonic crystals and plasmonic structures) to the chemical synthesis of metal oxide thin films and nanostructures (emphasized in the photocatalysis of organic pollutants in liquid and gas phase). He has strong experience in the analysis of thin films, nanostructures and metamaterial samples by means of microwave and FT-IR and Raman spectroscopy with emphasis on catalysis studies, dehydration kinetics, and in situ measurements, along with electromagnetic shielding, energy harvesting, etc. For the last few years, his research efforts have been focused on 3D printing/additive manufacturing of polymeric nanostructures with multifunction properties, such as 3D-printed circuits and electronics, energy-harvesting prototypes, the use of existing EM radiation (e.g. GSM, FM, WiFi), 3D-printed flexible electrodes for batteries, large-scale 3D photocatalytic/self-cleaning filters and devices, and industrial-scale thermoelectric devices, for potential applications in random access memory devices, etc.