Dr. Valentina Tirelli is a researcher at the Cytometry Area of the Core Facilities Service at the Italian National Institute of Health (Istituto Superiore di Sanità, ISS), where she specializes in flow cytometry, spectral cytometry, and cell sorting. Since 2008, she has actively contributed to numerous national and international research projects, gaining extensive expertise in multiparametric flow cytometric analysis and advanced cell sorting techniques. Her scientific interests include hematology, stem cell differentiation, immunophenotyping, and the development of innovative cytometric strategies. In recent years, her research has focused on developing flow cytometry methodologies for the detection and characterization of nanoscale particles, such as exosomes, extracellular vesicles (EVs), and viral particles. Dr. Tirelli has shown strong adaptability and a collaborative approach, contributing effectively to both research activities and core facility services. She has acquired hands-on experience with a wide range of instruments, including conventional analyzers (Beckman Coulter Gallios, CytoFLEX LX, CytoFLEX S, BD FACSymphony A1), spectral analyzer (Cytek Aurora), and cell sorter (Beckman Coulter MoFlo Astrios). She is co-inventor of the international patent WO 2019/122981 – PCT/IB2017/058291, and since 2017, she has been a member of the ISS expert group for technical-scientific evaluation in oncology and immunology.