Fig. 4From: A comprehensive review on Moringa oleifera nanoparticles: importance of polyphenols in nanoparticle synthesis, nanoparticle efficacy and their applicationsA AuNPs synthesis using different M. oleifera extracts as reducing agents. Different M. oleifera extracts as the reducing agents caused various color change in AuNPs. B TEM images and size distribution of AuNPs biosynthesized by aqueous flower extracts of M. oleifera. The original image was adapted with permission from Ref. [68]. 2023, Shadi RahimiBack to article page