Table 2.

Average inhibition zone and standard deviation for MMT, AgNO₃/MMT (S0), and Ag/MMT NCs at different AgNO₃ concentrations: (S2) 1.0%, (S4) 2.0%, and (S5) 5.0%

Bacteria	Inhibition zone (mm)				Control negative MMT (10 mg/mL)	Control positive (mm)
	S0	S2	S4	S5		CTX	C
E. coli	8.74 ± 0.23	8.30 ± 0.13	7.32 ± 0.14	8.07 ± 0.10	NA*	22.84	18.90
E. coli O157:H7	10.74 ± 0.32	9.80 ± 0.41	7.82 ± 0.10	7.36 ± 0.21	NA	30.01	20.84
K. pneumoniae	10.98 ± 0.17	10.38 ± 0.30	9.56 ± 0.30	9.72 ± 0.32	NA	31.04	24.69
S. aureus	10.02 ± 0.10	9.95 ± 0.10	9.52 ± 0.14	9.38 ± 0.21	NA	27.78	20.14
MRSA	8.97 ± 0.27	9.21 ± 0.13	8.98 ± 0.04	9.04 ± 0.17	NA	18.91	15.54

Abbreviations:

^*NA, not appearing; MMT, montmorillonite; MRSA, methicillin-resistant Staphylococcus aureus; CTX, cefotaxime; C, chloramphenicol.