Figure 3.

Characterization of bacterial movement and comparison between untreated and treated bacteria. (A,B) Autocorrelation of velocities (A: v_x; B: v_y) for bacteria treated with Ag⁺ ions at 40 µM for 0, 1, 2, and 4 h. Insets: the corresponding results for untreated bacteria. (C) Cumulative distribution function (C,D,F) of the maximum chord-to-arc ratio (${\gamma }_{CA}^M$) for the trajectories of bacteria untreated (0 h) or treated with 40 $\mathsf{\mu }$M Ag⁺ ions for 1, 2, and 4 h. (D) Dependence of the mean of ${\gamma }_{CA}^M$ on treatment time. (E) CDF of the changing rate of swimming directions ($\mathsf{\Omega }$) for bacteria untreated (0 h) or treated with 40 $\mathsf{\mu }$M Ag⁺ ions for 1, 2, and 4 h. (F) Dependence of the mean of $\mathsf{\Omega }$ on treatment time.