Structure and properties of cerium oxides in bulk …
Volume 584, 25 January 2014, Pages 199-208. Review. Structure and properties of cerium oxides in bulk and nanoparticulate forms. Author links open overlay panel. Shruba …
Food-directed synthesis of cerium oxide
@article{Darroudi2014FooddirectedSO, title={Food-directed synthesis of cerium oxide nanoparticles and their neurotoxicity effects}, author={Majid Darroudi and Seyed Javad Hoseini and Reza Kazemi Oskuee and Hasan Ali Hosseini and Leila Gholami and Sina Gerayli}, journal={Ceramics International}, year={2014}, volume={40}, …
Cerium oxide nanoparticles: green synthesis and biological …
Introduction. CeO 2 nanoparticles (NPs) have received much attention in nanotechnology due to their useful applications as catalysts, fuel cells and antioxidants in biological systems. 1 – 5 In general, cerium can exist in two oxidation states: Ce 3+ and Ce 4+.Therefore, cerium dioxide can have two different oxide forms, CeO 2 (Ce 4+) or Ce 2 …
Cerium oxide and its nanocomposites: Structure, synthesis, …
Cerium oxide has also been used as adsorbents for organic dyes, pesticides, and toxic metal ions. Doped cerium oxide has also been used to increase the efficiency of the adsorption of pure cerium oxide. ... Ind. Eng. Chem. Res., 53 (14) (2014), pp. 5759-5766. CrossRef View in Scopus Google Scholar [56] Tapan K. Sau, L. Rogach Andrey, …
Frontiers | Not Only Redox: The Multifaceted Activity of Cerium Oxide …
Cerium is a rare earth element belonging to the lanthanide series, possessing a stable cerium (IV) oxidation state that coexists with cerium (III). In the nanoparticle form, cerium oxide atoms form a cubic crystalline fluorite lattice structure where Ce 3+, and the compensating oxygen vacancies, localize at the nanoparticle …
Nanostructured cerium oxide: preparation, …
Reprinted with permission from Ref. 1, copyright 2014 American Chemical Society. Full size image. In this Prospective, we focus on the current research …
Untangling the biological effects of cerium oxide
The effect of cerium valence states at cerium oxide nanoparticle surfaces on cell proliferation. Biomaterials 35, 4441–4453, 10.1016/j.biomaterials.2014.01.074 (2014). Article CAS PubMed Google ...
Cerium oxide nanoparticle: a remarkably versatile rare …
predicted.30 In the oxide of cerium, the Ce4þ state with the stable electronic configuration of xenon is preferentially formed. It crystallizes in the fluorite structure in which every cerium ...
Fundamentals and Catalytic Applications of CeO2-Based …
Cerium dioxide (CeO2, ceria) is becoming an ubiquitous constituent in catalytic systems for a variety of applications. 2016 sees the 40th anniversary since ceria was first employed by Ford Motor Company as an oxygen storage component in car converters, to become in the years since its inception an irreplaceable component in …
Cerium oxide nanoparticles: properties, biosynthesis and …
Cerium oxide nanoparticles have gained a lot of attention as a potential future candidate for ending various kinds of problems by exhibiting redox activity, free radical scavenging property, biofilm inhibition, ... Nano, The Royal Society of Chemistry, 2014 ). Density and molar mass of cerium is 6.770 gm cm −3 (approximately) ...
A novel synthetic approach of cerium oxide …
Cerium oxide nanoparticles (CNPs) are novel synthetic antioxidant agents proposed for treating oxidative stress-related …
Nanostructured cerium oxide: preparation, characterization…
Cerium oxide (CeO 2) is a typical fluorite-structured compound containing a cubic close-packed array of metal atoms with eight coordinate Ce 4+ and four coordinate O 2− as shown in Fig. 1(a).The {111} surface is terminated by threefold-coordinated oxygen atoms and sevenfold-coordinated cerium atoms; the {110} surface is terminated by a …
Cerium oxide nanoparticles with antioxidant capabilities and …
Cerium oxide nanoparticles (CeNPs) are designed with fractions of up to 50% gadolinium to utilize the superior MRI-contrast properties of gadolinium. ... (2014–2019). We also thank A ...
Structure and properties of cerium oxides in bulk and …
Cerium sesquioxide Ce 2 O 3 had been reported to form at the 300 °C between 10 −98 atm and 10 −40 atm (while the dioxide is still stable in bulk at partial oxygen pressure down to 10 −40 atm) [21].Nanoform of sesquioxide, stable at ambient conditions, had been also reported [22].Similar to other trivalent lanthanide oxides, Ce(III) oxide was …
Cerium oxide nanoparticle: a remarkably versatile …
Published: 07 March 2014. Cerium oxide nanoparticle: a remarkably versatile rare earth nanomaterial for biological applications. Can Xu & Xiaogang Qu. NPG Asia Materials 6, …
Catalytic properties and biomedical applications of cerium oxide
10 Nov 2014. Download Citation. Environ. Sci.: Nano, 2015, 2, 33-53 Permissions. Request permissions Catalytic properties and biomedical applications of cerium oxide nanoparticles ... Cerium oxide nanoparticles (nanoceria) have shown promise as catalytic antioxidants in the test tube, cell culture models and animal models of disease. ...
Cerium oxide nanoparticles: properties, biosynthesis …
Abstract. Nanotechnology is the branch of science which deals with particles ranging between 1–100 nm. These particles are called nanoparticles, and they exhibit unique …
Antioxidants | Free Full-Text | Cerium Oxide Nanoparticles: …
Cerium, a rare earth metal, is the first element of the lanthanide series in the periodic table. The 4f orbitals of rare earth metals are adequately shielded by 5p and 4d electrons, leading to interesting catalytic properties [].Unlike most rare earth metals, cerium can exist in both 3+ and 4+ states [].Thus, cerium oxide exists as both CeO 2 and Ce 2 …
Dissolution and transformation of cerium oxide …
The cerium oxide nanoparticles used in this study were manufactured by flame-spray synthesis. By varying the manufacturing process, three different sizes were produced. ... Accessed 1 Oct 2014. Handy RD, Cornelis G, Fernandes T, Tsyusko O, Decho A, Sabo-Attwood T, Metcalfe C, Steevens JA, Klaine SJ, Koelmans AA, Horne N (2012) …
Effect of cerium oxide nanoparticles on asparagus lettuce …
The increasing chances of manufactured nanoparticles (NPs) being released into the environment highlight the importance of understanding their interactions with plants, which are the basis of ecosystems. In this study, the phytotoxicity of CeO2 NPs on asparagus lettuce was assessed. Lettuce seeds were treate
Cerium oxide nanoparticles protect against Aβ-induced …
Cerium oxide nanoparticles, or nanoceria, switch between their Ce 3+ and Ce 4+ states and are able to scavenge superoxide anions, hydrogen peroxide and peroxynitrite. Therefore, nanoceria might protect against neurodegeneration. ... 2014; 1842:220–231. [PMC free article] [Google Scholar] Manczak M, Calkins MJ, Reddy PH. …
Review Structure and properties of cerium oxides in bulk …
Section snippets Properties and structural relationships of cerium oxides. Bulk cerium oxide has at least two stable stoichiometries, the dioxide (CeO 2) and dicerium trioxide (Ce 2 O 3) which is commonly referred as sesquioxide.At ambient conditions dioxide crystallizes as CaF 2 (fluorite) type structure in face centered cubic space group …
Cerium oxide nanostructures: properties, biomedical …
When cerium combines with oxygen during NP formulation, it attains a fluorite crystalline (FCC) structure (Xu and Qu 2014 ). Cerium oxide NPs (CeNPs) have been formulated as riveting nanomaterials with excellent biomedical applications. Two types of cerium oxides are possible: (1) Cerium dioxide (CeO 2) and Cerium sesquioxide (Ce …
Nanostructured cerium oxide: preparation, characterization, …
Nanostructured cerium oxide (CeO 2) with outstanding physical and chemical properties has attracted extensive interests over the past few decades in environment and energy-related applications.With controllable synthesis of nanostructured CeO 2, much more features were technologically brought out from defect chemistry to structure-derived …
The surface chemistry of cerium oxide
Summary and outlook. Adsorption and reaction on cerium oxide surfaces are clearly related to the key concepts highlighted in the Introduction: (1) the coordination environment of the surface atoms; (2) the redox properties of the oxide; and (3) the oxidation state of the surface [6].
The Use of Cerium Compounds as Antimicrobials for …
In 2014, Kumari et al. analysed the genotoxicity by administering repeated oral doses of nanoceria and cerium oxide microparticles in Wistar rats. They observed that nanoceria exhibited toxic effects without any severe distress symptoms and mortality at medium and high doses.
Bioengineered cerium oxide (CeO2) nanoparticles and their …
Cerium oxide nanoparticles (CeO2 NPs) have received immense interest due to their wide application in environmental remediation, photocatalytic dye degradation, biological applications, and industrial fields. ... (2014) Bio Synthesis of Cerium oxide nanoparticles using aloe barbadensis miller gel. Int J Sci Res Publ 4(6):199–224. Google …
Cerium Oxide: A Lapidary Polish for Rocks and Glass
1 Pound. $49.99. Cerium oxide was one of the first polishes to be widely used in rock tumbling. It is the "polish of choice" for many people who do rock tumbling and all types of lapidary work. Cerium oxide produces a bright polish on agate, jasper, quartz, petrified wood, obsidian, feldspar minerals and just about every rock, mineral, and ...
Multienzyme-Mimetic Activity of Gold/Cerium …
Multienzyme-Mimetic Activity of Gold/Cerium Oxide Nanozyme. Qi Xin, Qi Xin. Tianjin Key Laboratory of Brain Science and Neural Engineering, Academy of Medical Engineering and Translational …
Cerium oxide nanoparticle: A remarkably versatile rare …
Cerium oxide nanoparticles (CeONPs) have received much attention because of their excellent catalytic activities, which are derived from quick and expedient mutation of the oxidation state between ...
