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. 2022 Oct 11;22:244. doi: 10.1186/s12866-022-02658-z

Table 4.

Fractional inhibitory concentration index (FICI) of ZnO-NPs and tested antibiotics against S. aureus ATCC 6538

Agent FIC FICI Interpretation
ZnO-NPs 0.015 0.075 S
Gentamicin 0.06
ZnO-NPs 0.062 0.122 S
Ciprofloxacin 0.06
ZnO-NPs 0.25 0.28 S
Chloramphenicol 0.03
ZnO-NPs 0.015 0.045 S
Cefotaxime 0.03
ZnO-NPs 0.062 0.162 S
Clindamycin 0.1
ZnO-NPs 0.062 0.312 S
Azithromycin 0.25

FIC Fractional inhibitory concentration, FICI Fractional inhibitory concentration index, S Synergism