Fig. 3
From: Bactericidal effects of 310 nm ultraviolet light-emitting diode irradiation on oral bacteria
Bactericidal effect of 265 nm UV-LED irradiation on oral bacteria. Each of bacterial suspension (0.1 ml) in 96-well plates was irradiated by a UV-LED. The suspensions were serially diluted and incubated on agar plates at 37 °C anaerobically. Colonies on the plates were counted after incubation for 1–7 days. Bactericidal levels are indicated as viability (%). (n = 3, means ± SE; **P < 0.01 vs. 0 s)