Figure 4.

Antimicrobial potential of AgNPs. (A) Disc diffusion method showing the anti-candidal activity of AgNPs and the synergistic anti-candidal potential of AgNPs (50 µg/mL) mixed with C. gigantea leaf extract (200 µg/mL). Data are expressed as the mean zone of inhibition in mm. (B) Time-kill curves of C. albicans following exposure to AgNPs, plant extract, and AgNPs/CG. Non-treated Candida cells were used as a control. There was a decrease in the rate of cell growth when Candida cells were treated with AgNPs/CG compared to either the control cells, AgNPs alone, or plant extract alone. Values are the mean ± SD of three independent experiments.