Figure 7

(A) Representative agar plates used to evaluate antimicrobial activity of PIC nanoparticles prepared from PSS and Pol-B. Lane 1: No dilution, lane 2: 102-fold dilution, lane 3: 104-fold dilution, and lane 4: 106-fold dilution. (B) CFU/mL of P. aeruginosa in the absence (control) and presence of PIC nanoparticles prepared from different PSS sources at different [n+/n−] ratios, calculated from the colonies found in the agar plates (one-way ANOVA, Tukey test, CI = 95%). ‘N/S’ = not significant. Error bars represent the standard deviation, n = 3.