Figure 6From: Facile synthesis of concentrated gold nanoparticles with low size-distribution in water: temperature and pH controls TEM images of temporal evolution of GNPs after the labeled reaction time. These samples were obtained from the reaction process at 85°C in the presence NaOH with a concentration of (A) 6.0 mM, (B) 7.7 mM, and (C) 9.5 mM, respectively. Scale bar: 50 nm in (A) and 20 nm in (B, C).Back to article page