Table 3.

Fractional Inhibitory Concentration (FIC) Index and Minimum Inhibitory Concentrations (MICs) of Antibiotics-Conjugated CS-AgNPs Against Clinical Isolates

Clinical Isolates	Fractional Inhibitory Concentration (FIC) Index
	CS-AgNPs + AMX		CS-AgNPs + CEF		CS-AgNPs + LVX
	FIC	MIC of CS-AgNPs + AMX	FIC	MIC of CS-AgNPs + CEF	FIC	MIC of CS-AgNPs + LVX
E. coli	0.12	4 + 64	0.18	4 + 32	0.12	4 + 1
K. pneumoniae	0.15	8 + 32	0.12	4 + 8	0.18	8 + 4
S. aureus	0.18	4 + 16	0.18	4 + 16	0.15	4 + 4
S. typhi	0.18	4 + 16	0.18	4 + 2	0.12	2 + 0.0625
P. aeruginosa	0.18	4 + 32	0.25	4 + 32	0.25	4 + 128

Abbreviations: AMX, amoxicillin; CEF, cefixime; LVX, levofloxacin.