Results 171 to 180 of about 26,197 (212)

Nanoparticles of cerium oxide. The application and cerium oxide toxicity assessment

Farmacevticheskoe delo i tehnologija lekarstv (Pharmacy and Pharmaceutical Technology), 2021
Nanotechnology is the most perspective direction in the modern science and technic. The great interest in entire world has been observing to nanoparticles properties and their fields of use investigation. Cerium dioxide is a perspective oxide material which has wide use in different branches of industry due to its unique physical and chemical ...
Maria N. Kuznetsova, Vera Yu. Zhilkina
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Ophthalmic Applications of Cerium Oxide Nanoparticles

Journal of Ocular Pharmacology and Therapeutics, 2020
Cerium oxide nanoparticles (CeO2-NPs; or nanoceria) have been largely studied for biomedical applications due to their peculiar auto-regenerative antioxidant activity. This review focuses on ophthalmic applications of nanoceria. Many in vivo data indicate that nanoceria protect the retina from neurodegeneration.
Maccarone R, Tisi A, Passacantando M, Ciancaglini M   +3 more
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Electrosprayed Cerium Oxide Nanoparticles

Journal of Electronic Materials, 2018
Cerium oxide nanoparticles were fabricated via the calcination of electrosprayed polyvinyl alcohol (PVA)/cerium nitrate nanoparticles. The effect of material variables of PVA/cerium nitrate electrospraying solution, i.e. viscosity, surface tension and electrical conductivity, as well as important process variables like voltage, nozzle–collector ...
Pedram Bagherzadeh Azar, Hossein Tavanai, Ali Reza Allafchian   +2 more
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Pharmacological potential of cerium oxide nanoparticles

Nanoscale, 2011
Nanotechnology promises a revolution in pharmacology to improve or create ex novo therapies. Cerium oxide nanoparticles (nanoceria), well-known as catalysts, possess an astonishing pharmacological potential due to their antioxidant properties, deriving from a fraction of Ce(3+) ions present in CeO(2). These defects, compensated by oxygen vacancies, are
Celardo, I, PEDERSEN, JENS ZACHO, TRAVERSA, ENRICO, GHIBELLI, LINA   +3 more
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Cerium oxide nanoparticles scavenge nitric oxide radical (˙NO)

Chemical Communications, 2012
In this study we have obtained evidence that cerium oxide nanoparticles (CeO(2) NPs) are able to scavenge nitric oxide radical. Surprisingly, this activity is present in CeO(2) NPs with a lower level of cerium in the 3+ state (CeO(2) NPs with low 3+/4+ ratio and therefore a reduced number of oxygen vacancies), in contrast to the superoxide scavenging ...
Dowding, Janet M., Dosani, Talib, Kumar, Amit, Seal, Sudipta, Self, William T.   +4 more
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Cerium and yttrium oxide nanoparticles are neuroprotective

Biochemical and Biophysical Research Communications, 2006
The responses of cells exposed to nanoparticles have been studied with regard to toxicity, but very little attention has been paid to the possibility that some types of particles can protect cells from various forms of lethal stress. It is shown here that nanoparticles composed of cerium oxide or yttrium oxide protect nerve cells from oxidative stress ...
David, Schubert, Richard, Dargusch, Joan, Raitano, Siu-Wai, Chan   +3 more
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Anti‐inflammatory Properties of Cerium Oxide Nanoparticles

Small, 2009
AbstractThe valence and oxygen defect properties of cerium oxide nanoparticles (nanoceria) suggest that they may act as auto‐regenerative free radical scavengers. Overproduction of the free radical nitric oxide (NO) by the enzyme inducible nitric oxide synthase (iNOS) has been implicated as a critical mediator of inflammation.
Suzanne M, Hirst, Ajay S, Karakoti, Ron D, Tyler, Nammalwar, Sriranganathan, Sudipta, Seal, Christopher M, Reilly   +5 more
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Heteroaggregation of Cerium Oxide Nanoparticles and Nanoparticles of Pyrolyzed Biomass

Environmental Science & Technology, 2015
Heteroaggregation with indigenous particles is critical to the environmental mobility of engineered nanomaterials (ENM). We studied heteroaggregation of ceria nanoparticles (n-CeO2), as a model for metal oxide ENM, with nanoparticles of pyrogenic carbonaceous material (n-PCM) derived from pecan shell biochar, a model for natural chars and human-made ...
Peng, Yi, Joseph J, Pignatello, Minori, Uchimiya, Jason C, White   +3 more
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Redox reactivity of cerium oxide nanoparticles against dopamine

Journal of Colloid and Interface Science, 2014
The interaction between dopamine and the redox active cerium oxide nanoparticles, or nanoceria was studied using a suite of spectroscopic and surface characterization methods. Changes in the chemical reactivity and concentration of dopamine upon exposure to nanoceria was assessed in aqueous solutions and a human physiological fluid--human serum.
Akhtar, Hayat, Daniel, Andreescu, Gonca, Bulbul, Silvana, Andreescu   +3 more
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Cerium Oxide Nanoparticles are More Toxic than Equimolar Bulk Cerium Oxide in Caenorhabditis elegans

Archives of Environmental Contamination and Toxicology, 2013
Engineered cerium oxide nanoparticles (CeO2 NPs) are widely used in biomedical and engineering manufacturing industries. Previous research has shown the ability of CeO2 NPs to act as a redox catalyst, suggesting potential to both induce and alleviate oxidative stress in organisms.
M C, Arnold, A R, Badireddy, M R, Wiesner, R T, Di Giulio, J N, Meyer   +4 more
openaire   +2 more sources