The hydroxyl radical generated from aluminum anodic oxide film by UV irradiation was evaluated using ESR measurement and its antimicrobial characteristics was also investigated using film covering method with photo irradiation. DMPO-OH adduct was detected using ESR with DMPO (5,5-Dimethyl-Pyrroline-N-Oxide) as a spin trap reagent when aluminum anodic oxide film was irradiated by UV. It found from this result that hydroxyl radical generate from aluminum anodic oxide film by UV irradiation and that the aluminum anodic oxide film occur antimicrobial action by photo irradiation. Further the aluminum anodic oxide film impregnated with iodine compound showed high antimicrobial action in spite of photo irradiation.
展开▼
