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Biofilm (A) and S. aureus (B) re-growth from discharge argon treated and sonicated biofilms. Experimental conditions: power: 80 W; exposure time: 0–10 min. After treatment, biofilms were fed with fresh TSBG medium and incubated for an additional 150 h. Biofilm biomass was measured by CV staining while bacterial re-growth was quantified by measuring absorbance changes in the treated biofilm at OD570. The data represent the means and SDs of at least three samples
