Fig. 2
From: Green synthesis of AgNP–ligand complexes and their toxicological effects on Nilaparvata lugens
The preparation process of AgNPs, and variation of color changes in tested compounds. A (I) aqueous solution containing H4L and DMSO, (II) the solution containing AgNO3, (III) after the process of reduction of Ag+ to Ag0 with changed color to reddish-brown. B (I) aqueous solution containing TBAPy and DMSO, (II) the solution containing AgNO3, (III) after the process of reduction of Ag+ to Ag0 nanoparticles with changed color to yellowish-black. C UV–Vis absorption spectra of AgNPs synthesized using H4L and TBAPy