Quaternary Ammonium Polyethyleneimine: Antibacterial Activity

Table 4

Characterization of QA-PEI nanoparticles with different counter anions.

Code	Counter ion	Inhibition concentrationa	Elemental analysisof (%) Ib	C/Nc	Particle   size (nm)d	Zeta potential  (mV)e
G	Nitrate	40 𝜇g/mL	4.65	3.64	96 ± 80	64 ± 59
H	Acetate	40 𝜇g/mL	18.31	3.64	154 ± 100	105 ± 30
I	Iodide	80 𝜇g/mL	43.16	3.56	40 ± 18	63 ± 27

a-e See notes in Table 3.