Fig. 3.

Viscous polymer solutions do not disrupt P. aeruginosa biofilms to the same extent as mucins. a Quantification of PAO1-GFP biofilms biomass (48 h) after exposure to 0.5% (w/v) polymer solutions in LB medium at 0.5 μL/min flow for 1 h shows that only mucins induce significant biofilm disassembly. Reported values represent biofilms after 1 h of exposure normalized to biofilms before exposure. Error bars represent standard error (n = 3). *P ≤ 0.05 versus medium-only treatment, one-way ANOVA. The medium-only treatment and non-mucin polymer treatments did not significantly differ from each other. b Viscosity of polymers (0.5% (w/v) solutions, n = 3) is not associated with the ability to disrupt P. aeruginosa biofilms