Results 181 to 190 of about 3,814 (227)

Selective adsorption of triterpene acids on cerium oxide nanoparticles

Journal of Chromatography A, 2022
Researches on the adsorption for triterpene acids by cerium oxide nanoparticles (CeO2 NPs) as adsorbent were carried out. The results demonstrated that CeO2 NPs could selectively adsorb triterpene acids. Using triterpene acid standards as model compounds, the adsorption and desorption conditions were optimized.
Ying, Liu, Ke, Min, Rong, Yang, Xiaoyu, Xie, Xi, Nie, Najiao, Zhou, Shili, Chen, Ming, Ma, Bo, Chen   +8 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
openaire   +2 more sources

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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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
openaire   +2 more sources

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
openaire   +1 more source

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
openaire   +3 more sources

Fast Synthesis of Cerium Oxide Nanoparticles and Nanorods

Journal of Nanoscience and Nanotechnology, 2006
The microwave-hydrothermal method has been investigated for the fast synthesis of rare earth cerium oxide (CeO2) nanoparticles and nanorods. This approach combines the advantages of both hydrothermal and microwave heating techniques. It is facile, rapid, energy-saving, and environmentally-benign and leads to high-yields.
Feng, Gao, Qingyi, Lu, Sridhar, Komarneni   +2 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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Synthesis and Characterization of Luminescent Cerium Oxide Nanoparticles

Nanomedicine, 2010
Fluorescent cerium oxide (ceria) nanoparticles were developed through incorporation of erbium into the lattice. Catalytic properties and luminescent behavior are examined.Cerium-erbium mixed oxide nanoparticles were synthesized by the reverse micelles route. Purity, size, and composition were characterized.
Karran, Woan, Yi-Yang, Tsai, Wolfgang, Sigmund   +2 more
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Cerium Oxide Nanoparticles: Applications and Prospects in Nanomedicine

Nanomedicine, 2013
Promising results have been obtained using cerium (Ce) oxide nanoparticles (CNPs) as antioxidants in biological systems. CNPs have unique regenerative properties owing to their low reduction potential and the coexistence of both Ce(3+)/Ce(4+) on their surfaces.
Soumen, Das, Janet M, Dowding, Kathryn E, Klump, James F, McGinnis, William, Self, Sudipta, Seal   +5 more
openaire   +3 more sources