Figures & data
Figure 1. Time-dependent UV-Vis spectra of the reaction mixture for (A) CB-AuNps and (B) CB-AgNps, respectively.
Figure 2. FE-TEM images of spherical (A) CB-AuNps and (E) CB-AgNps, respectively. Elemental mapping results indicate the distribution of (B) element gold and (F) silver nanoparticle pellet solution, respectively; (C) gold (red) and (G) silver (green), respectively. EDX spectra of (D) CB-AuNps and (H) CB-AgNps, respectively.
Figure 3. SAED results indicate the crystallinity of biosynthesized nanoparticles of (A) CB-AuNps and (C) CB-AgNps, respectively. XRD results indicate the crystallinity of biosynthesized nanoparticles of (B) CB-AuNps and (D) CB-AgNps, respectively.
Figure 4. Particle size distribution of (A) CB-AuNps and (B) CB-AgNps with respect to number, volume, and intensity.
Figure 5. FTIR absorption spectra of (A) C. barometz root powder, (B) CB-AgNps, and (C) CB-AuNps.
Figure 6. Antibacterial activity of CB-AgNps against (A) E. coli, (B) S. aureus, (C) S. enterica , and (D) P. aeruginosa.
Figure 7. DPPH radical scavenging activity of CB-AuNps and CB-AgNps using ascorbic acid as positive control.
Figure 8. Cytotoxicity of (A) CB-gold and (B) silver nanoparticles in RAW264.7 cells and MCF-7 breast cancer cells. *P < 0.05, **P < 0.01. The statistical significance of differences between values was evaluated by one-way ANOVA.
