Figure 3

Effect of the addition of biofilm and control substances on top of the bacterial broth on single-frequency impedance. (A) Impedance curves following addition of paraffin in different amounts (n = 4). (B) Impedance curves following addition of PA14 pellicle biofilm (n = 4) or different amounts of PBS buffer (n = 1). As the curves for PBS buffer additions had identical shapes, an average curve is shown. n indicates the number of technical replicates.