Dušan B. Topalović is a Research Associate at the Department of Radiation and Environmental Protection, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade. He holds a Bachelor's degree in Electrical Engineering and Computer Science (2012), a Master's degree in Nanoelectronics and Photonics (2013), and a PhD in Nanoelectronics and Photonics (2020), all from the University of Belgrade. Dr. Topalović has been with the Vinča Institute since 2013, conducting research in radiation protection and environmental science. He has gained additional experience as a visiting researcher at the University of Antwerp, Belgium, and the Norwegian Institute for Air Research, Kjeller, Norway. His early research focused on the properties of topological insulator states in semiconductor quantum nanostructures. Currently, his work focuses on atmospheric particle analysis and the design, validation, and calibration of semiconductor and optical sensors for environmental monitoring. He is also deeply engaged in leveraging machine learning methodologies to address diverse challenges in environmental protection.