Background: Antibiotic-resistant pathogens, such as methicillin-resistant Staphylococcus aureus (MRSA), pose significant challenges in the treatment of chronic wound infections. Antibacterial photodynamic therapy (aPDT) offers a localized, resistance-independent alternative to antibiotics [1]. In aPDT, bacteria are targeted by molecules called photosensitizers (PSs) that are activated by light. Natural PSs are ...