Figure 2From: Glucomannan-mediated facile synthesis of gold nanoparticles for catalytic reduction of 4-nitrophenolUV-vis spectra of gold nanoparticles synthesized by KGM after incubation at 50°C for different times. The final concentrations of HAuCl4 and KGM are 0.89 mM and 0.22 wt%, respectively. The inset presents the reaction kinetics for the formation of gold nanoparticles.Back to article page