AFM micrograph of C-AuNPs. (A–J) depicting shape, size, height, roughness and 3D topographical image due to natural properties of PEs. (A & B) and (C & D) graphical representation of morphology, size and 3D topographical image of C-AuNPs from extracts of flower and leaves of Ocimum tenuiflorum; (E & F) flower extract of Azadirachta indica; (G & H) leaves extract of Mentha spicata; and (I & J) peel extract of Citrus sinensis fruit, respectively. Every graph shows different size and morphology with a histogram of C-AuNPs.
C-AuNP: Capped gold nanoparticle; PE: Plant extract.