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Table 4 Fractional inhibitory concentration index (FICI) of ZnO-NPs and tested antibiotics against S. aureus ATCC 6538

From: Zinc oxide nanoparticles reduce biofilm formation, synergize antibiotics action and attenuate Staphylococcus aureus virulence in host; an important message to clinicians

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

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