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Fig. 7 | Antimicrobial Resistance & Infection Control

Fig. 7

From: Assessment of the potential for resistance to antimicrobial violet-blue light in Staphylococcus aureus

Fig. 7

Average inactivation kinetics of MSSA and MSSA after repeated sub-lethal exposures of 405 nm light. Inactivation kinetics of isolates of (a) methicillin-sensitive Staphylococcus aureus (MSSA) and (b) methicillin-resistant Staphylococcus aureus (MRSA) after 5, 10 and 15 sub-lethal exposures of 405 nm light. Sub-lethal exposures were conducted using a dose of 108 J/cm2 (at an irradiance of 60 mW/cm2), and inactivation kinetics were based on exposure to 60 mW/cm2 for increasing time periods. Results are compared to non-sub-lethally exposed bacteria as a control. Each data point is a mean value ± SD (n ≥ 6). No significant changes were observed in the test populations, using one way ANOVA with Dunnett’s post-hoc test (P ≥ 0.05)

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