Dr. Nikola Srećković is currently employed as a Research Associate at the Department of Chemistry, Faculty of Science, University of Kragujevac, Serbia. His main field of scientific interest is medicinal plants, although he is also actively engaged in green chemistry research. His work primarily focuses on the phytochemical characterization of medicinal plants and the potential applications of plant-derived products as antioxidant and antimicrobial agents. In addition, he is involved in the green synthesis of silver nanoparticles using plant extracts, as well as their characterization and evaluation of biological and catalytic activities. He is a participant in two bilateral scientific and technological cooperation projects: between the Republic of Serbia and the Republic of Austria (2022–2024; project No. 337-00-577/2021-09/9), and between the Republic of Serbia and the Republic of Slovenia (2023–2025; project No. 337-00-110/2023-05/18). Dr. Srećković is also a member of the project funded by the Center for Scientific Research of the Serbian Academy of Sciences and Arts (SANU) and the University of Kragujevac, titled “Production and Application of Chitosan from Insect Pests in Biotechnology” (INSECTECH, VL03-150/3). He has visited several European universities within the Erasmus+ training exchange program and is a member of the Serbian Biochemical Society.