Fig. 3From: Antimicrobial activities of graphene oxide against biofilm and intracellular Staphylococcus aureus isolated from bovine mastitisGentamicin protection assay of S. aureus in Mac-T cells. Following gentamicin exposure, lysis of Mac-T cells released approximately a) 104 CFU/mL of S. aureus F31D, b) 106 CFU/mL of F41B, and c) 103CFU/mL of F53D. Error bars represent standard deviation of triplicates. *p ≤ 0.05; *** p ≤ 0.001; **** p ≤ 0.000; and NS, not significantBack to article page