Synthesis and characterization of CeO2 and SiO2 nanoparticles and their effect on growth parameters and the antioxidant defense system in Vigna mungo L. Hepper

Engineered nanoparticles (NPs) have recently attracted a lot of attention after being tested in various agricultural plants. This paper reports the green synthesis of CeO2 NPs and SiO2 NPs from leaf extracts of Nyctanthes arbor-tristis. The physical characteristics of the produced nanoparticles were then determined using UV-visible spectroscopy, transmission electron microscopy (TEM), fluorescence spectroscopy, and Fourier transform infrared spectroscopy (FTIR). Furthermore, the interaction effects of cerium oxide NPs (C1, C2, and C3) and silicon dioxide NPs (S1, S2, and S3) at 10 mg/L on blackgram (Vigna mungo L.) were evaluated. CeO2 and SiO2 NPs treatments enhanced the growth performance of the plants by causing a decrease in superoxide radical (SOR) and H2O2 via improving antioxidant enzymes. These findings imply that the size and shape of CeO2 and SiO2 NPs provide defense against oxidative damage to the blackgram.

Automated summary

This paper reports the green synthesis and characterization of CeO2 and SiO2 nanoparticles from leaf extracts of Nyctanthes arbor-tristis. The effects of these nanoparticles on blackgram plants were evaluated, and it was found that CeO2 and SiO2 nanoparticles enhanced plant growth by improving antioxidant enzymes and reducing superoxide radical and H2O2 levels. These findings suggest that the size and shape of CeO2 and SiO2 nanoparticles play a role in protecting against oxidative damage.