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. 2022 Jun 23;10(4):e01006-22. doi: 10.1128/spectrum.01006-22

FIG 4.

FIG 4

Antibiofilm activity of N-acetylcysteine (NAC) at 8,000 mg/L, colistin (CST), and NAC-CST combinations against three colistin-resistant nonmucoid P. aeruginosa strains in the Nunc-TSP lid system. A potentiation by NAC of colistin antibiofilm activity was observed with all tested strains. CST 8, colistin at 8 mg/L; CST 32, colistin at 32 mg/L. Biofilms not exposed to NAC or CST represent the control. Black lines indicate median values. The x axis is set at the limit of detection (20 CFU/peg).