Screening of semi‐volatile compounds in plants treated with coated cerium oxide nanoparticles by comprehensive two‐dimensional gas chromatography

Abstract

Literature data about semi‐volatile organic compounds in plants and the effect of cerium oxide nanoparticles on them are scarce. Surface modification of nanoparticles may change nanoparticle‐environment interaction, and therefore affects compounds in plants. In this research, uncoated and glucose‐, levan‐, and pullulan‐coated cerium oxide nanoparticles were used for wheat and pea treatment during the growth. The aim was the screening of semi‐volatile organic compounds from plants’ shoots using comprehensive two‐dimensional gas chromatography–mass spectrometry, a powerful separation technique allowing to reach unique separation resolution, and investigation of qualitative changes after the treatment with coated cerium oxide nanoparticles. The results were analyzed by the identification of individual peaks and fingerprint analysis by image processing. Wheat samples contained a higher number of semi‐volatile organic compounds (108) compared to pea (77) but were less affected by the treatments with coated nanoparticles. The highest number of compounds was detected in wheat after the treatment with levan‐ and pullulan‐coated nanoparticles, and in pea after treatment with levan‐coated nanoparticles. This article reports a successful application of a semi‐volatile organic compounds profile presented only as categorical variables and unique fingerprint images for the inter‐cultivar recognition. This method may be useful in screening nanoparticles’ effects on different plants.

Characterization and antimicrobial activity of cerium oxide nanoparticles synthesized using neem and ginger

“…[ 9 10 11 ] The ceria nanoparticles (NP), with their distinct structure, scavenge free radicals, thereby leading to cell longevity. [ 12 13 ] The coexistence of two oxidation states in cerium oxide NP greatly influences their antioxidant behavior. [ 14 15 ]…”

Toxicity investigation of CeO2 nanoparticles coated with glucose and exopolysaccharides levan and pullulan on the bacterium Vibrio fischeri and aquatic organisms Daphnia magna and Danio rerio

“…Ce concentration in the environment is in the range from 2 to 150 mg kg -1 in soil (Emsley, 2011) and around 80 μg L -1 in wastewater (Collin et al, 2014), but taking into account an increase of global production of nCeO 2 , concentration of Ce in the environment is rapidly 6 increasing. Given that the effects of glucose-, levan-and pullulan-coated nCeO 2 (G-, L-, and P-CeO 2 , respectively) were tested on plants (Milenković et al, 2019;Milenković et al, 2021), the current research examined the impact of these nanoparticles on bacteria and aquatic organisms, so contributing to environmental toxicity data. In this study, the effects of uncoated (nCeO 2 ) and glucose-, levan-, and pullulan-coated (G-CeO 2 , L-CeO 2 , P-CeO 2 , respectively) nanoparticles were tested on bacteria (V. fischeri) and two aquatic organisms (D. magna and D. rerio).…”