Fig. 2From: Green pyomelanin-mediated synthesis of gold nanoparticles: modelling and design, physico-chemical and biological characteristicsa UV–Vis absorption spectra of AuNPs synthesized from melanin (circle), pure pigment (diamond) and HAuCl4 (triangle). Plasmon peak (with wavelength value) was shown. b TEM image of the AuNPsBack to article page