Dr. Alejandro G. Roca is a Senior Researcher at the Catalan Institute of Nanoscience and Nanotechnology (ICN2) in Barcelona (Spain) from the ma.  He has developed his scientific career in different research institutions from Spain (ICMM, INA-UNIZAR and ICMA), United Kingdom (University of York) and Japan (Tohoku University). His expertise spans two research lines related with magnetic iron oxide-based nanoparticles. i) Development of novel synthetic approaches for the growth of magnetic-based nanoparticles for different applications. His target materials range from hybrid heterostructures to anisotropic magnetic nanoparticles like nanocubes or nanorods, with direction-dependent properties. ii) Study of the magnetism of magnetic-based nanostructures. He combines different lab scale techniques with synchrotron/neutron techniques to unveil the complete knowledge of the structure and magnetism of magnetic-based nanoparticles. Dr. Roca has published 57 publications (h-index=30) with more than 5500 citations during his career and edited 2 books for RSC and Springer Nature.