Dr. Ana Ćirić is a Research Associate at the Department of Pharmaceutical Technology and Cosmetology, Faculty of Pharmacy, University of Belgrade, Serbia. She earned her PhD in Pharmaceutical Sciences in 2024, focusing on the development of polyelectrolyte complex-based microparticles for controlled oral drug delivery. Her research centers on advanced drug delivery systems based on natural polymers and biopolymers, with emphasis on formulation development and physicochemical characterization. Her work includes the design and optimization of chitosan-based systems and polyelectrolyte complexes, as well as the evaluation of in vitro performance and its correlation with in vivo behavior. A major focus of her research is the application of natural polymers in drug delivery systems from a sustainability perspective. She also works on cosmetic formulations, emphasizing sustainable approaches and natural raw materials, including agro-industrial by-products. Dr. Ćirić contributes to the peer-review process for international scientific journals and was recognized as an Exceptional Reviewer in 2025.