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Scanning electron microscopy analysis of Staphylococcus epidermidis irradiated with blue light in the presence of 1 ppm compound 11. (×60,000) The cell wall surface of S. epidermidis was severely damaged after the treatment. (a) Before irradiation with blue light, (b) Irradiation with blue light for 1 min, and (c) Irradiation with blue light for 5 min.
