Research Article

Quaternary Ammonium Polyethyleneimine: Antibacterial Activity

Figure 1

Kinetic measurements of bacterial outgrowth applying various concentrations of QA-PEI nanoparticles (i.e., no. I). The growth of the bacteria (a) S. aureus and (b) E. coli was measured every several hours during 24 hours. Each point on the curve is the average absorbance (A595) measured simultaneously in three wells similarly prepared in the same microtiter plate.
826343.fig.001a
(a)
826343.fig.001b
(b)