Fig. 5From: The penetration effect of HMME-mediated low-frequency and low-intensity ultrasound against the Staphylococcus aureus bacterial biofilmThe comparison of the destruction degree of samples under different treatment conditions. a is the control group. From left to right, only 1Â mL saline is incubated for 1.2.3Â min, respectively. B is the sinusoidal ultrasound group. From left to right, 1Â mL saline is incubated for 3Â min and the intensity of sinusoidal ultrasound is 0.5, 1 and 1.5Â W/cm2, respectively. c is the pulse ultrasound group. From left to right, 1Â ml saline is incubated for 3Â min and the intensity of pulse ultrasound is 0.5, 1 and 1.5Â W/cm2, respectively.Back to article page