Figure 3
From: A biocompatible synthesis of gold nanoparticles by Tris(hydroxymethyl)aminomethane

TEM images of gold nanoparticles. Gold nanoparticles synthesized by Tris. The insets show higher magnification images and size distribution histogram. The gold nanoparticles have perfect polyhedral structures and nanoparticle diameter = 55.2 ± 8.0 nm.