Cerium Mischmetal, Cerium Alloys, and Cerium Compounds

Reinhardt, Klaus; Winkler, Herwig G.

doi:10.1002/14356007.a06_139

Cited by 27 publications

(31 citation statements)

References 33 publications

(15 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, protective effect of NC can related to the inhibition of lipid oxidation and reduction of oxidative stress markers. NC with transition between cerium (III) and cerium (IV) oxidation states, has high oxygen storage capacity and can an excellent choice as a catalyst [30]. Also, NC with having SOD mimetic activity scavenge free radicals and has regenerative role [31].…”

Section: Discussionmentioning

confidence: 99%

Nephroprotective effect of cerium oxide nanoparticles on cyclophosphamide-induced nephrotoxicity via anti-apoptotic and antioxidant properties in BALB/c mice

Hamzeh¹,

Amiri²,

Beklar³

et al. 2018

mpj

View full text Add to dashboard Cite

Cyclophosphamide [CP], as alkylating agents has side effects such as nephrotoxicity. Cerium oxide nanoparticles [nanoceria; NC], as an antioxidant, are effective at reduction oxidative stress. This study evaluated the protective effect of nanoceria in nephrotoxicity induced CP. 32 BALB/c mice were randomly divided into four equal groups. Control, NC, CP and NC+CP. NC and CP injected intraperitoneally respectively in dose of 100 μg/kg for 3 days and 200 mg/kg single dose on 3th day of study. Two days after the final treatment, histochemical, serum biochemical, histopathological and immunohistochemical examinations were performed for determination effects of NC on nephrotoxicity. Oxidative stress and renal injury induced in CP treated mice were proved by the significantly elevation of urea and creatinine and alteration in oxidative stress markers [MDA and GSH levels]. Consequently, histopathological changes and apoptosis were markedly increased. NC was able to reduce MDA, urea , creatinine and increase GSH content. In addition, NC pretreatment could alleviated immunoreactivity of caspase-3. NC revealed a strong antioxidant in nephrotoxicity following CP treatment. This study suggests that NC through antioxidant and antiapoptotic properties have protective effect against CP-induced nephrotoxicity.

show abstract

Section: Discussionmentioning

confidence: 99%

Nephroprotective effect of cerium oxide nanoparticles on cyclophosphamide-induced nephrotoxicity via anti-apoptotic and antioxidant properties in BALB/c mice

Hamzeh¹,

Amiri²,

Beklar³

et al. 2018

mpj

View full text Add to dashboard Cite

show abstract

“…It is used as a co-catalyst in a number of reactions, including the water-gas shift and steam reforming of ethanol or diesel fuel into hydrogen gas and carbon dioxide. It is useful in the Fischer-Tropsch reactions and in selected oxidations [ 26 ].…”

Section: Historical and Current Usesmentioning

confidence: 99%

“…Through this mechanism, NO x emissions are reduced and carbon monoxide is converted to carbon dioxide. Ceria is relatively inexpensive but its addition has been shown to provide substantial reductions in the amount of platinum catalyst needed for complete oxidation of NO x and other harmful incomplete combustion products [ 26 ]. Fuel burns more cleanly upon addition of CeO 2 , resulting in less air pollution.…”

Section: Historical and Current Usesmentioning

confidence: 99%

Environmental Geochemistry of Cerium: Applications and Toxicology of Cerium Oxide Nanoparticles

Dahle

Arai

2015

IJERPH

321

158

View full text Add to dashboard Cite

Cerium is the most abundant of rare-earth metals found in the Earth’s crust. Several Ce-carbonate, -phosphate, -silicate, and -(hydr)oxide minerals have been historically mined and processed for pharmaceutical uses and industrial applications. Of all Ce minerals, cerium dioxide has received much attention in the global nanotechnology market due to their useful applications for catalysts, fuel cells, and fuel additives. A recent mass flow modeling study predicted that a major source of CeO2 nanoparticles from industrial processing plants (e.g., electronics and optics manufactures) is likely to reach the terrestrial environment such as landfills and soils. The environmental fate of CeO2 nanoparticles is highly dependent on its physcochemical properties in low temperature geochemical environment. Though there are needs in improving the analytical method in detecting/quantifying CeO2 nanoparticles in different environmental media, it is clear that aquatic and terrestrial organisms have been exposed to CeO2 NPs, potentially yielding in negative impact on human and ecosystem health. Interestingly, there has been contradicting reports about the toxicological effects of CeO2 nanoparticles, acting as either an antioxidant or reactive oxygen species production-inducing agent). This poses a challenge in future regulations for the CeO2 nanoparticle application and the risk assessment in the environment.

show abstract

“…When dispersing brucite, periclase and rutile crystals, generated surfaces of microcrystalline aerosol particles have different structures of cleavage planes {0001}, {001} and {110}, respectively, for Mg(OH) 2 [1], MgO [14] and TiO 2 [15]. They also differ in terms of chemical nature of surface atoms that remain after break of the respective bonds: Mg-OH for Mg(OH) 2 , Mg-O for MgO and Ti-O for TiO 2 .…”

Section: Magnesium Hydroxidementioning

confidence: 99%

“…From compounds containing a rare-earth element cerium, cerium dioxide СеО 2 is most widely used [1]. Introduction of cerium as addition in calcium and magnesium hydroxides substantially changes their physico-chemical properties.…”

Section: Introductionmentioning

confidence: 99%

Surface Properties of Metal Hydroxide Microparticles in the Ambient Air

2017

View full text Add to dashboard Cite

Abstract. The adsorption and photoadsorption properties of Mg(OH) 2 and Ca(OH) 2 microparticles in the ambient air were investigated. The compositional analysis of an adsorption layer of microparticles was carried out. The kinetics of photodesorption of molecules from microcrystal surfaces and the interaction of HCFC-22 (CHF 2 Cl) in the dark and under light were studied. Quantum yields and their spectral dependencies were determined for CO 2 photodesorption, O 2 and CO photoadsorption. The effect of weakly bound CO displacement from the surface of microparticles was revealed during dark adsorption of HCFC-22. It is supposed that adsorbed CO is formed as a result of atmospheric CO 2 reduction after the break of Mg-OH bonds. In case of calcium hydroxide, CO is generated during the interaction of calcium hydroxide with carbon dioxide in the presence of water.

show abstract

Cerium Mischmetal, Cerium Alloys, and Cerium Compounds

Cited by 27 publications

References 33 publications

Nephroprotective effect of cerium oxide nanoparticles on cyclophosphamide-induced nephrotoxicity via anti-apoptotic and antioxidant properties in BALB/c mice

Nephroprotective effect of cerium oxide nanoparticles on cyclophosphamide-induced nephrotoxicity via anti-apoptotic and antioxidant properties in BALB/c mice

Environmental Geochemistry of Cerium: Applications and Toxicology of Cerium Oxide Nanoparticles

Surface Properties of Metal Hydroxide Microparticles in the Ambient Air

Contact Info

Product

Resources

About