Br-DAPI is a DAPI-derived DNA-binding photosensitizer that produces reactive oxygen species (ROS) upon irradiation, resulting in single/double stranded breaks of bound DNA. Light-induced viability reduction is observed among A549 cells treated with Br-DAPI (IC50 = 1.3 μM; 45 min treatment), but not DAPI (IC50 >64 μM) upon photosensitization (365 nm 15 mW/cm2, 4.5 J/cm2 fluence rate). Its high permeation in both Gram-negative and Gram-positive bacteria allows selective light-induced eradication of bacteria over mammalian cells at low concentration (IC50 = 0.29 μM/N99 E. coli and 0.5 μM/B. subtilis) and light intensity (5 min irradiation by 365 nm LED at 15 mW/cm2, 4.5 J/cm2).
DAPI-derived DNA-binding photosensitizer that allows light-induced cancer cell killing at high concetrations and selective bacteria eradication at low concentrations.
Unser Team von Wissenschaftlern verfügt über Erfahrung in allen Forschungsbereichen einschließlich Life Science, Materialwissenschaften, chemischer Synthese, Chromatographie, Analytik und vielen mehr..