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Change in optical density at 600 nm (OD600) for P. aeruginosa cultures in the absence (
) and presence of PSS (
), Pol-B (
) and PIC particles (
) prepared at 0.7 (A), 0.6 (B), 0.5 (C), 0.4 (D), 0.3 (E), 0.2 (F) and 0.1 (G) [N:SO3Na] ratio. In each case, the concentration of Pol-B was adjusted to that in the PIC particles employed. Optical density of each of the controls including the media employed (1:1 LB:HEPES, 
) is shown for comparison (H). n = 3.
