Ivano Alessandri is Full Professor of Chemistry at the University of Brescia, where he leads the research group of Sustainable Chemistry and Materials, coordinating multidisciplinary projects that combine materials synthesis, optical nano-engineering and operando vibrational spectroscopies. This group pioneered  research on plasmon-free/all-dielectric SERS, which enabled strong Raman enhancement without noble-metal plasmons and contributed to set the conceptual framework for a rapidly growing field, with manifold applications in environmental sensing and photocatalysis.