Green Synthesis and Antibacterial Activity of HAp@Ag Nanocomposite Using Centella asiatica (L.) Urban Extract and Eggshell

Figure 13

Inhibition zone photographs of the Ag-NPs and HAp@Ag nanocomposites against bacteria S. aureus (a, b), E. coli (c, d), and P. aeruginosa (e, f). The positions (a, c, e) correspond to Ag-NPs concentration of 120 ppm, and the positions (b, d, f) correspond to HAp@Ag nanocomposite concentration of 1.25 mg·mL⁻¹.