FIG 2.
Biomass of biofilms formed by incubating silk suture with S. aureus RN6390 or ATCC 25923 for 24 hr, followed by overnight incubation with varying concentrations of gentamicin, with biomass measured (n≥5) as absorbance of crystal violet (A) and as fluorescence of Syto 9 (B). Arrows highlight approximate MIC/MBC of planktonic cells as well as cells from mechanically dispersed biofilms. Significant difference compared to 0 µg/ml at P<0.01 (*) and P<0.05 (†).