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. 2020 Jul 29;18:107. doi: 10.1186/s12951-020-00658-7

Fig. 6.

Fig. 6

Ultrasound combined with the LEV-NPs exhibited intracellular killing activity against M. smegmatis. The bacterial survival rate was determined using a CFU assay. The control group did not undergo ultrasound irradiation and the drug. The experiments were performed in triplicate; mean ± SD are shown. *P < 0.05, **P < 0.01