Surfactant-Free One-Pot Synthesis of Low-Density Cerium Oxide Nanoparticles for Adsorptive Removal of Arsenic Species

2017 ◽  
Vol 37 (1) ◽  
pp. 221-231 ◽  
Author(s):  
Prashant Kumar Mishra ◽  
Amit Saxena ◽  
Ashok Singh Rawat ◽  
Pradeep Kumar Dixit ◽  
Rakesh Kumar ◽  
...  
Keyword(s):  
Cerium Oxide ◽  
Arsenic Species ◽  
Cerium Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Low Density ◽  
One Pot ◽  
Adsorptive Removal ◽  
One Pot Synthesis ◽  
Removal Of Arsenic

scholarly journals Catalytic Synthesis of 3-Methyl-1-phenyl-1H-benzo[g]pyrazolo[3,4-b]quinoline-5,10-dione Derivatives Using Cerium Oxide Nanoparticles as Heterogeneous Catalyst in Green Conditions

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Ali Gharib ◽  
Bibi Robabeh Hashemipour Khorasani ◽  
Manouchehr Jahangir ◽  
Mina Roshani ◽  
Reza Safaee
Keyword(s):  
Heterogeneous Catalyst ◽  
Cerium Oxide ◽  
Simple Procedure ◽  
Catalytic Synthesis ◽  
Cerium Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Green Solvent ◽  
One Pot ◽  
Short Reaction Time ◽  
Green Conditions

We have developed a new methodology for the synthesis of 3-methyl-1-phenyl-1H-benzo[g]pyrazolo[3,4-b]quinoline-5,10-dione derivatives in excellent yields. A new green chemistry protocol with the reusability of the nanoparticle as catalyst has been developed for the synthesis of 3-methyl-1-phenyl-1H-benzo[g]pyrazolo[3,4-b]quinoline-5,10-dione derivatives via one-pot reaction of 3-methyl-1-phenyl-1H-pyrazol-5-amine, arylaldehydes, and 2-hydroxynaphthalene-1,4-dione in water as green solvent and using cerium oxide nanoparticles (CONPs) as heterogeneous catalyst. The present methodology affords several advantages such as simple procedure, excellent yields, and short reaction time. The catalyst is inexpensive, stable, easily recycled, and reused for several cycles with consistent activity.

Surfactant-free one-pot synthesis of CeO2, TiO2 and Ti@Ce oxide nanoparticles for the ultrafast removal of Cr(vi) from aqueous media

Nanoscale ◽  
2018 ◽  
Vol 10 (15) ◽  
pp. 7257-7269 ◽  
Author(s):  
Prashant Kumar Mishra ◽  
Rakesh Kumar ◽  
Pramod Kumar Rai
Keyword(s):  
Titanium Oxide ◽  
Cerium Oxide ◽  
Aqueous Media ◽  
Oxide Nanoparticles ◽  
One Pot ◽  
One Pot Synthesis

Cerium oxide (CeO2), titanium oxide (TiO2) and titanium oxide impregnated with cerium oxide (Ti@Ce oxide) nanoparticles were synthesized using a simple one-pot surfactant-free method.

scholarly journals The potential ameliorative impacts of cerium oxide nanoparticles against fipronil-induced hepatic steatosis

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Lamiaa Wasef ◽  
Atef M. K. Nassar ◽  
Yasser S. El-Sayed ◽  
Dalia Samak ◽  
Ahmed Noreldin ◽  
...  
Keyword(s):  
Cerium Oxide ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Nuclear Antigen ◽  
Cerium Oxide Nanoparticles ◽  
Albino Rats ◽  
Oxide Nanoparticles ◽  
Low Density ◽  
Fatty Acid Binding ◽  
Wide Range

AbstractFipronil (FIP) is a phenylpyrazole insecticide that is commonly used in agricultural and veterinary fields for controlling a wide range of insects, but it is a strong environmentally toxic substance. Exposure to FIP has been reported to increase the hepatic fat accumulation through altered lipid metabolism, which ultimately can contribute to nonalcoholic fatty liver disease (NAFLD) development. The present study aimed to examine the function of cerium oxide nanoparticles (CeNPs) in protecting against hepatotoxicity and lipogenesis induced by FIP. Twenty-eight male albino rats were classified into four groups: FIP (5 mg/kg/day per os), CTR, CeNPs (35 mg/kg/day p.o.), and FIP + CeNPs (5 (FIP) + 35 (CeNPs) mg/kg/day p.o.) for 28 consecutive days. Serum lipid profiles, hepatic antioxidant parameters and pathology, and mRNA expression of adipocytokines were assessed. The results revealed that FIP increased cholesterol, height-density lipoprotein, triacylglyceride, low-density lipoprotein (LDL-c), and very-low-density lipoprotein (VLDL-c) concentrations. It also increased nitric oxide (NO) and malondialdehyde (MDA) hepatic levels and reduced glutathione peroxidase (GPx) and superoxide dismutase (SOD) enzyme activities. Additionally, FIP up-regulated the fatty acid-binding protein (FABP), acetyl Co-A carboxylase (ACC1), and peroxisome proliferator-activated receptor-alpha (PPAR-α). Immunohistochemically, a strong proliferation of cell nuclear antigen (PCNA), ionized calcium-binding adapter molecule 1 (Iba-1), cyclooxygenase-2 (COX-2) reactions in the endothelial cells of the hepatic sinusoids, and increased expression of caspase3 were observed following FIP intoxication. FIP also caused histological changes in hepatic tissue. The CeNPs counteracted the hepatotoxic effect of FIP exposure. So, this study recorded an ameliorative effect of CeNPs against FIP-induced hepatotoxicity.

One-pot synthesis of a ceria–graphene oxide composite for the efficient removal of arsenic species

Nanoscale ◽  
2017 ◽  
Vol 9 (10) ◽  
pp. 3367-3374 ◽  
Author(s):  
Tamil S. Sakthivel ◽  
Soumen Das ◽  
Cameron J. Pratt ◽  
Sudipta Seal
Keyword(s):  
Graphene Oxide ◽  
Arsenic Species ◽  
Efficient Removal ◽  
One Pot ◽  
Oxide Composite ◽  
One Pot Synthesis ◽  
Removal Of Arsenic

Cerium oxide nanoparticles application for rapid adsorptive removal of tetracycline in water

2020 ◽  
Vol 8 (1) ◽  
pp. 103613 ◽  
Author(s):  
Iis Nurhasanah ◽  
Kadarisman ◽  
Vincensius Gunawan ◽  
Heri Sutanto
Keyword(s):  
Cerium Oxide ◽  
Cerium Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Adsorptive Removal

Polyacrylic Acid Modified Cerium Oxide Nanoparticles: Synthesis and Characterization as a Peroxidase Mimic for Non-Enzymatic H2O2 Sensor

2020 ◽  
Vol 16 (5) ◽  
pp. 816-828
Author(s):  
Gurdeep Rattu ◽  
Nishtha Khansili ◽  
Prayaga M. Krishna
Keyword(s):  
Hydrogen Peroxide ◽  
Cerium Oxide ◽  
Polyacrylic Acid ◽  
Spectroscopic Analysis ◽  
Cerium Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Peroxidase Mimic ◽  
Ft Ir ◽  
H2o2 Sensing ◽  
Fluorescence Spectrometer

Background: Cerium oxide nanoparticles (nanoceria) are efficient free-radical scavengers due to their dual valence state and thus exhibit optical and catalytic properties. Therefore, the main purpose of this work was to understand the peroxidase mimic activity of polymer-stabilized nanoceria for enzyme-less H2O2 sensing by fluorescence spectrometer. Objective: This research revealed the development of fluorescence hydrogen peroxide nanosensor based on the peroxidase-like activity of polyacrylic acid stabilized nanoceria (PAA-CeO2 Nps). Methods: PAA-CeO2 Nps were synthesized by simple cross-linking reaction at a low temperature and characterized by XRD, SEM, Zeta potential, TGA, FT-IR and UV-VIS spectroscopic analysis. H2O2 sensing was performed by a fluorescence spectrometer. Results:: The synthesized polymer nanocomposite was characterized by XRD, SEM, TGA, FT-IR and UV-VIS spectroscopic analysis. The XRD diffraction patterns confirmed the polycrystalline nature and SEM micrograph showed nanoparticles having hexagonal symmetry and crystallite size of 32 nm. The broad peak of Ce–O bond appeared at 508 cm-1. UV-VIS measurements revealed a welldefined absorbance peak around 315 nm and an optical band-gap of 3.17 eV. As synthesized PAACeO2 Nps effectively catalysed the decomposition of hydrogen peroxide (H2O2) into hydroxyl radicals. Then terephthalic acid was oxidized by hydroxyl radical to form a highly fluorescent product. Under optimized conditions, the linear range for determination of hydrogen peroxide was 0.01 - 0.2 mM with a limit of detection (LOD) of 1.2 μM. Conclusion: The proposed method is ideally suited for the sensing of H2O2 at a low cost and this detection system enabled the sensing of analytes (sugars), which can enzymatically generate hydrogen peroxide.

Radiosensitizing Effect of Cerium Oxide Nanoparticles on Human Leukemia Cells

2018 ◽  
Vol 6 (2) ◽  
pp. 111-115 ◽  
Author(s):  
Azadeh Montazeri ◽  
Zohreh Zal ◽  
Arash Ghasemi ◽  
Hooman Yazdannejat ◽  
Hossein Asgarian-Omran ◽  
...  
Keyword(s):  
Cerium Oxide ◽  
Leukemia Cells ◽  
Cerium Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Human Leukemia ◽  
Radiosensitizing Effect ◽  
Human Leukemia Cells

Cerium oxide nanoparticles acts as a novel therapeutic agent for ulcerative colitis through anti-oxidative mechanism

Life Sciences ◽  
2021 ◽  
pp. 119500
Author(s):  
Fereshteh Asgharzadeh ◽  
Alireza Hashemzadeh ◽  
Farzad Rahmani ◽  
Atieh Yaghoubi ◽  
Seyedeh Elnaz Nazari ◽  
...  
Keyword(s):  
Ulcerative Colitis ◽  
Cerium Oxide ◽  
Therapeutic Agent ◽  
Cerium Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Novel Therapeutic

scholarly journals Modeling of cerium oxide nanoparticles pharmacokinetics

2020 ◽  
Author(s):  
V. V. Kasyanova ◽  
I. N. Bazhukova
Keyword(s):  
Cerium Oxide ◽  
Cerium Oxide Nanoparticles ◽  
Oxide Nanoparticles
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