Fig. 5
Evaluation of antioxidant and antibacterial properties of Co3O4 NPs. a DPPH scavenging results for various concentrations of vitamin C and Co3O4 NPs. The DPPH inhibition was correlated with the concentrations of both vitamin C and Co3O4 NPs. The results are indicated as mean ± SD (****p < 0.0001). b Investigating the antibacterial properties of Co3O4 NPs on E. coli and S. aureus bacteria. The growth of both pathogenic bacteria was inhibited at all different concentrations of Co3O4 NPs. The results are indicated as mean ± SEM and the data are collected with 3 repetitions for each concentration