The impact of cerium oxide nanoparticles on tomato (Solanum lycopersicum L.) and its implications for food safety

Metallomics ◽  
2012 ◽  
Vol 4 (10) ◽  
pp. 1105 ◽  
Author(s):  
Qiang Wang ◽  
Xingmao Ma ◽  
Wen Zhang ◽  
Haochun Pei ◽  
Yongsheng Chen
Keyword(s):  
Food Safety ◽  
Solanum Lycopersicum ◽  
Cerium Oxide ◽  
Cerium Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Solanum Lycopersicum L ◽  
The Impact

Nutritional Status of Tomato (Solanum lycopersicum) Fruit Grown in Fusarium-Infested Soil: Impact of Cerium Oxide Nanoparticles

2020 ◽  
Vol 68 (7) ◽  
pp. 1986-1997 ◽  
Author(s):  
Ishaq O. Adisa ◽  
Swati Rawat ◽  
Venkata Laxma Reddy Pullagurala ◽  
Christian O. Dimkpa ◽  
Wade H. Elmer ◽  
...  
Keyword(s):  
Nutritional Status ◽  
Solanum Lycopersicum ◽  
Cerium Oxide ◽  
Cerium Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Infested Soil

scholarly journals Cerium Oxide Nanoparticles Affect Heavy Metals Uptake by Pea in a Divergent Way than Their Ionic and Bulk Counterparts

2019 ◽  
Vol 230 (10) ◽  
Author(s):  
Elżbieta Skiba ◽  
Wojciech M. Wolf
Keyword(s):  
Plant Growth ◽  
Cerium Oxide ◽  
Metal Uptake ◽  
Cerium Nitrate ◽  
Cerium Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
The Impact ◽  
Heavy Metals Uptake ◽  
Level Analysis ◽  
Cerium Compounds

Abstract The impact of cerium oxide nanoparticles, bulk cerium oxide and ionic cerium nitrate on the plant development as well as the uptake and further translocation of Cu, Mn, Zn and Fe by sugar pea (Pisum sativum L.) was investigated. Plants were cultivated in the laboratory pot experiments using the modified Hoagland solutions supplemented with cerium compounds at the 200 mg L−1 Ce level. Analysis of variance proved that cerium oxide nanoparticles significantly decreased Cu, Mn, Zn and Fe concentrations in roots and above ground parts of the pea plants. The latter ions are presumably transported via symplastic pathways and may compete with nanoparticles for similar carriers. The lowest impact on the plant growth and the metal uptake was observed under the bulk CeO2 treatment. On the contrary, strongest interactions were observed for supplementation with ionic cerium nitrate. The highly beneficial effect of cerium oxide nanoparticles on the plant growth was not supported by this study. The latter conclusion is of particular relevance when environmental impact of cerium compounds on the waste management, municipal urban low emissions and food production is to be concerned.

scholarly journals Recent insights into the impact, fate and transport of cerium oxide nanoparticles in the plant-soil continuum

2021 ◽  
Vol 221 ◽  
pp. 112403
Author(s):  
Ved Prakash ◽  
Jose Peralta-Videa ◽  
Durgesh Kumar Tripathi ◽  
Xingmao Ma ◽  
Shivesh Sharma
Keyword(s):  
Cerium Oxide ◽  
Fate And Transport ◽  
Cerium Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Plant Soil ◽  
The Impact

Rational Synthesis Concept for Cerium Oxide Nanoparticles: On the Impact of Particle Size on the Oxygen Storage Capacity

2020 ◽  
Vol 124 (16) ◽  
pp. 8736-8748 ◽  
Author(s):  
Elifkübra Özkan ◽  
Pascal Cop ◽  
Felix Benfer ◽  
Alexander Hofmann ◽  
Martin Votsmeier ◽  
...  
Keyword(s):  
Particle Size ◽  
Cerium Oxide ◽  
Storage Capacity ◽  
Oxygen Storage Capacity ◽  
Oxygen Storage ◽  
Cerium Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
The Impact

scholarly journals Cerium Oxide Nanoparticles Protect against Oxidant Injury and Interfere with Oxidative Mediated Kinase Signaling in Human-Derived Hepatocytes

2019 ◽  
Vol 20 (23) ◽  
pp. 5959 ◽  
Author(s):  
Silvia Carvajal ◽  
Meritxell Perramón ◽  
Gregori Casals ◽  
Denise Oró ◽  
Jordi Ribera ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Cell Viability ◽  
Cerium Oxide ◽  
Antioxidant Properties ◽  
Cerium Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Oxidant Injury ◽  
Ros Scavenging ◽  
Alcoholic Fatty Liver ◽  
The Impact

Cerium oxide nanoparticles (CeO2NPs) possess powerful antioxidant properties, thus emerging as a potential therapeutic tool in non-alcoholic fatty liver disease (NAFLD) progression, which is characterized by a high presence of reactive oxygen species (ROS). The aim of this study was to elucidate whether CeO2NPs can prevent or attenuate oxidant injury in the hepatic human cell line HepG2 and to investigate the mechanisms involved in this phenomenon. The effect of CeO2NPs on cell viability and ROS scavenging was determined, the differential expression of pro-inflammatory and oxidative stress-related genes was analyzed, and a proteomic analysis was performed to assess the impact of CeO2NPs on cell phosphorylation in human hepatic cells under oxidative stress conditions. CeO2NPs did not modify HepG2 cell viability in basal conditions but reduced H2O2- and lipopolysaccharide (LPS)-induced cell death and prevented H2O2-induced overexpression of MPO, PTGS1 and iNOS. Phosphoproteomic analysis showed that CeO2NPs reverted the H2O2-mediated increase in the phosphorylation of peptides related to cellular proliferation, stress response, and gene transcription regulation, and interfered with H2O2 effects on mTOR, MAPK/ERK, CK2A1 and PKACA signaling pathways. In conclusion, CeO2NPs protect HepG2 cells from cell-induced oxidative damage, reducing ROS generation and inflammatory gene expression as well as regulation of kinase-driven cell survival pathways.

scholarly journals Development of Anti-Aging and Anticorrosive Nanoceria Dispersed Alkyd Coating for Decorative and Industrial Purposes

Coatings ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 610 ◽  
Author(s):  
Ezgi Kızılkonca ◽  
F. Bedia Erim
Keyword(s):  
Cerium Oxide ◽  
Electrochemical Impedance ◽  
Salt Spray ◽  
Mechanical Tests ◽  
Standard Test ◽  
Cerium Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Oxide Particles ◽  
The Impact ◽  
Alkyd Coatings

This study focuses on nano cerium oxide particles as alternative additives in solvent-based alkyd coatings in order to improve anticorrosive and anti-aging properties. The paint samples were formulated with cerium oxide micro and nanoparticles, and the coating quality characteristics were compared with coating formulated with commercial anticorrosive and UV-aging agents. Formulations were prepared with 3 wt % commercial anticorrosive agent as reference material (RP), 3 wt % cerium oxide microparticles (CER1), 3 wt % and 1% cerium oxide nanoparticles (CER2 and CER3), respectively. The basket milling technique with zirconium balls was used for the preparations of coatings and characterizations were performed by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and contact angle measurements. Improvement in the anticorrosive properties was proven with electrochemical impedance spectroscopy (EIS) and accelerated salt spray tests based on ISO 4628 Evaluation of Degradation of Coatings. Furthermore, physical and mechanical tests were run according to standard test methods for coatings and reported. Results showed that cerium oxide particles provide anticorrosive, UV defender, and self-cleaning effects, besides excellent physical resistance to alkyd coatings. The impact of cerium oxide nanoparticles was found to be stronger than those of the microparticles.

scholarly journals Investigating the Impact of Cerium Oxide Nanoparticles Upon the Ecologically Significant Marine Cyanobacterium Prochlorococcus

2021 ◽  
Vol 8 ◽  
Author(s):  
Craig J. Dedman ◽  
Marwa M. I. Rizk ◽  
Joseph A. Christie-Oleza ◽  
Gemma-Louise Davies
Keyword(s):  
Cerium Oxide ◽  
Cell Density ◽  
Fluorescent Microscopy ◽  
Cerium Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Natural Seawater ◽  
Natural Conditions ◽  
Marine Cyanobacterium ◽  
Wide Range ◽  
The Impact

Cerium oxide nanoparticles (nCeO2) are used at an ever-increasing rate, however, their impact within the aquatic environment remains uncertain. Here, we expose the ecologically significant marine cyanobacterium Prochlorococcus sp. MED4 to nCeO2 at a wide range of concentrations (1 μg L–1 to 100 mg L–1) under simulated natural and nutrient rich growth conditions. Flow cytometric analysis of cyanobacterial populations displays the potential of nCeO2 (100 μg L–1) to significantly reduce Prochlorococcus cell density in the short-term (72 h) by up to 68.8% under environmentally relevant conditions. However, following longer exposure (240 h) cyanobacterial populations are observed to recover under simulated natural conditions. In contrast, cell-dense cultures grown under optimal conditions appear more sensitive to exposure during extended incubation, likely as a result of increased rate of encounter between cyanobacteria and nanoparticles at high cell densities. Exposure to supra-environmental nCeO2 concentrations (i.e., 100 mg L–1) resulted in significant declines in cell density up to 95.7 and 82.7% in natural oligotrophic seawater and nutrient enriched media, respectively. Observed cell decline is associated with extensive aggregation behaviour of nCeO2 upon entry into natural seawater, as observed by dynamic light scattering (DLS), and hetero-aggregation with cyanobacteria, confirmed by fluorescent microscopy. Hence, the reduction of planktonic cells is believed to result from physical removal due to co-aggregation and co-sedimentation with nCeO2 rather than by a toxicological and cell death effect. The observed recovery of the cyanobacterial population under simulated natural conditions, and likely reduction in nCeO2 bioavailability as nanoparticles aggregate and undergo sedimentation in saline media, means that the likely environmental risk of nCeO2 in the marine environment appears low.

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