Figure 3
From: Alginate oligosaccharides enhance diffusion and activity of colistin in a mucin-rich environment
Cell viability (showing ATP production using the CellTiter-Glo assay) of 24 h P. aeruginosa NH57388A biofilms, following 24 h treatment with colistin ± OligoG (0.5, 1 and 2% w/v) added either directly to the artificial sputum (AS) medium surface or pre-incubated with AS medium for 4 h (± SD; n = 2). (a) Planktonic bacteria from the biofilm supernatant. (b) Planktonic bacteria after biofilm washing. (c) Total planktonic bacteria (a + b). (d) Attached biofilm bacterial population. Significant difference is indicated by *, where *p < 0.05 compared to untreated control.
