Roberto Christ Vianna Santos earned his Pharmacy–Clinical Analysis degree from PUCRS, followed by a Master’s in Biosciences (PUCRS), a Ph.D. in Cellular and Molecular Biology (PUCRS/Universitat de Barcelona), and postdoctoral training at Universitat de Barcelona. He is currently an Associate Professor in the Department of Microbiology and Parasitology at Universidade Federal de Santa Maria (UFSM), where he also serves as an advisor in the Pharmaceutical Sciences Graduate Program. His work in antimicrobial research has resulted in a CNPq Research Productivity Fellowship; international collaborations as a visiting professor at the University of Aveiro (CAPES-PrInt); and evaluator roles for research agencies in France, Argentina, and Chile. His research focuses primarily on: (1) photodynamic therapy applications, (2) antimicrobial metallic thin films, and (3) bioactive natural products against bacterial, fungal, and parasitic pathogens. Having previously coordinated UFSM’s Pharmaceutical Sciences Graduate Program (2019–2021), he bridges nanomaterial development with clinical microbiology applications through his interdisciplinary approach.