Figure 1From: A green chemistry approach for synthesizing biocompatible gold nanoparticlesSynthesis and characterization of AuNPs. The figure inset shows tubes containing samples of the Ganoderma spp. extract (1); 1 mM aqueous HAuCl4 (2); extract after incubation with HAuCl4 (3). The absorption spectrum of AuNPs exhibited a strong broad peak at 520 nm, and this band was assigned to surface plasmon resonance of the particles.Back to article page