Fig. 6. FESEM micrographs of antimicrobial susceptibility testing of pcAgNPs at 25 μg mL⁻¹ toward Gram-positive and Gram-negative strains at a scale bar of 1 μm observed after 24 h of treatment with typical membrane damage. Enterococcus sp. (VRE) control (a); Enterococcus sp. (VRE) treated with pcAgNPs showing cell damage (b); E. coli control (c) and E. coli treated with pcAgNPs (d).