Table 2. Antibacterial Efficacy of PVC–SNAP–PEI–NAC Composites against Gram-Positive and Gram-Negative Bacteria.

sample	change compared to PVC control	E. coli		S. aureus
		adhered	planktonic	adhered	planktonic
PVC–PEI	log reduction	0.16 ± 0.08	0.03 ± 0.04	1.62 ± 0.22	0.36 ± 0.03
	percent reduction	29.60 ± 12.35	7.20 ± 8.96	97.32 ± 1.20	55.88 ± 3.27
PVC–PEI–NAC	log reduction	0.44 ± 0.36	0.07 ± 0.16	1.41 ± 0.25	0.05 ± 0.19
	percent reduction	54.46 ± 27.37	10.90 ± 34.34	95.53 ± 1.81	1.20 ± 53.11
PVC–SNAP	log reduction	0.86 ± 0.24	0.62 ± 0.03	1.34 ± 0.11	1.10 ± 0.18
	percent reduction	84.48 ± 8.57	76.11 ± 1.86	95.29 ± 1.24	91.25 ± 4.19
PVC–SNAP–PEI–NAC	log reduction	1.69 ± 0.21	1.57 ± 0.04	2.47 ± 1.43	3.37 ± 0.11
	percent reduction	97.7 ± 1.1	97.29 ± 0.26	99.95 ± 0.02	99.96 ± 0.01