Within the European project “Twinning for excellence of the Serbian Research Center for quantum biophotonics” – BioQantSense, the first of a series of exchange visits by Senior Researchers from the Belgrade Institute of Physics (IPB) took place in Florence these days, aimed at comparing and sharing knowledge on various topics of Biophotonics and Photonic Materials. The project funded to the CNR-INO within the WIDERA Horizon Europe calls, has a three-year duration and it aims to push towards excellence and to consolidate the international reputation of IPB at a scientific, management and more general level of research and innovation. The scientific training activities involve the researchers Francesco Riboli, Riccardo Cicchi, Sara Nocentini and Caterina Credi as Principal Investigator.