Susceptibilities of the dermatophytes Trichophyton mentagrophytes and T. rubrum microconidia to photodynamic antimicrobial chemotherapy with novel phenothiazinium photosensitizers and red light

► Dermatophytoses are among the most common and widespread infectious diseases worldwide. ► Photodynamic antimicrobial chemotherapy is a promising alternative to conventional chemotherapy. ► Development of PACT depends on identifying effective PS for the different pathogenic species. ► PACT with the new MB derivatives S137 and NMBN was more effective than with MB and TBO. ► Complete fungal killing was achieved for both species.