Cerium
Cerium Radioisotopes
Cerium Isotopes
Metal Nanoparticles
Metals, Rare Earth
Encyclopedias as Topic
Saturn
Atmosphere
Bioreactors
Samarium
Nanoparticles
Ytterbium
Salmonella pathogenicity island 2-dependent evasion of the phagocyte NADPH oxidase. (1/177)
A type III protein secretion system encoded by Salmonella pathogenicity island 2 (SPI2) has been found to be required for virulence and survival within macrophages. Here, SPI2 was shown to allow Salmonella typhimurium to avoid NADPH oxidase-dependent killing by macrophages. The ability of SPI2-mutant bacteria to survive in macrophages and to cause lethal infection in mice was restored by abrogation of the NADPH oxidase-dependent respiratory burst. Ultrastructural and immunofluorescence microscopy demonstrated efficient localization of the NADPH oxidase in the proximity of vacuoles containing SPI2-mutant but not wild-type bacteria, suggesting that SPI2 interferes with trafficking of oxidase-containing vesicles to the phagosome. (+info)Improvement of efficiency of the Ce(IV)-induced DNA scission--relationship between the kinetic parameters (k(cat) and Km) and the DNA structure. (2/177)
The Michaelis constant (Km) for double-stranded DNA, single-stranded DNA, and dinucleotide hydrolysis by Ce(IV) ion are 4.4, 15, and more than 40 mM, respectively. The order of the k(cat), however, is dinucleotide >> oligonucleotides. Not only the improvement of k(cat) but also that of Km is important for the design of an efficient artificial nuclease. (+info)Rapid determination of cyanide and azide in beverages by microdiffusion spectrophotometric method. (3/177)
A rapid screening method was developed for the determination of the toxic volatile anions, cyanide and azide, in beverages. This method consisted of a microdiffusion extraction combined with spectrophotometry using the Konig cyanide reaction and ferric azide complex formation in conjugation with cerium azide oxido-reduction. The time required to achieve full recovery in the extraction of hydrogen cyanide and hydrazoic acid from samples was considerably shortened by increasing the diffusion temperature from 25 degrees C to 40 degrees C. The time required to achieve saturated color development in the Konig cyanide reaction was also shortened by increasing incubation temperature to 40 degrees C. The interference in both azide color reactions was examined for volatile compounds. Cyanide interfered only in the case of ferric azide complex formation. Sulfide, sulfate, nitrite, and acetic acid interfered in both the color reactions. The established method gave a detection limit of 6 microM for cyanide and 0.5mM for azide, and it required only 1 h to determine both anions. Cyanide and azide disappeared by evaporation from beverages during 25 degrees C storage under open conditions in a pH-dependent manner as a function of their respective pKa values of 9.2 and 4.6. (+info)Anoxic stress leads to hydrogen peroxide formation in plant cells. (4/177)
Hydrogen peroxide (H2O2) was detected cytochemically in plant tissues during anoxia and re-oxygenation by transmission electron microscopy using its reaction with cerium chloride to produce electron dense precipitates of cerium perhydroxides. Anoxia-tolerant yellow flag iris (Iris pseudacorus) and rice (Oryza sativa), and anoxia-intolerant wheat (Triticum aestivum) and garden iris (Iris germanica) were used in the experiments. In all plants tested, anoxia and re-oxygenation increased H2O2 in plasma membranes and the apoplast. In the anoxia-tolerant species the response was delayed in time, and in highly tolerant I. pseudacorus plasma membrane associated H2O2 was detected only after 45 d of oxygen deprivation. Quantification of cerium precipitates showed a statistically significant increase in the amount of H2O2 caused by anoxia in wheat root meristematic tissue, but not in the anoxia-tolerant I. pseudacorus rhizome parenchyma. Formation of H2O2 under anoxia is considered mainly an enzymatic process (confirmed by an enzyme inhibition analysis) and is due to the trace amount of dissolved oxygen (below 10(-5) M) present in the experimental system. The data suggest oxidative stress is an integral part of oxygen deprivation stress, and emphasize the importance of the apoplast and plasma membrane in the development of the anoxic stress response. (+info)Feasibility studies in rats fed heavy metals as multiple nutrient markers. (5/177)
The nitrates of five metals (cerium, terbium, ytterbium, lutetium, and iridium) were fed to rats to determine the feasibility of their use as nonabsorbed, multiple markers for recovery, passage, and indirect apparant digestibility studies. Fecal recovery of a single oral dose was completed within 72 hours. When the salts were mixed into the diet, 48-96 hours was required to establish a steady-state concentration of markers in feces. The diurnal variation of cerium in feces was found to be considerable when it was fed twice daily as a single dose prior to each feeding. When incorporated into the diet, negligible diurnal variation in fecal concentration was noted with lutetium, and small variation was seen with other metals. In nutrient apparent digestibility studies, good agreement was generally found between direct and indirect multiple marker methods. Experiments with a daily intake marker suggest that cerium was not satisfactory as a multiple marker in which neutron activation analysis was the method of determination. (+info)Induction of early bolting in Arabidopsis thaliana by triacontanol, cerium and lanthanum is correlated with increased endogenous concentration of isopentenyl adenosine (iPAdos). (6/177)
The effects of triacontanol (TRIA), applied singly or in combination with cerium nitrate and lanthanum nitrate, on bolting of Arabidopsis thaliana were studied. Triacontanol (0.1 to 0.6 microM) added to the culture medium induced early bolting. TRIA (0.3 microM) applied with low concentrations of cerium and lanthanum caused a synergistic stimulation of bolting. In medium containing 0.3 microM TRIA, 0.1 microM cerium nitrate and 0.1 mM lanthanum nitrate, 82% of the plants bolted 20 d after seed sowing compared to only 8.6% in basal medium and 47.8% in medium with TRIA only. The changes in the endogenous concentrations of total cytokinins of the isopentenyl adenine (IP) subfamily in the leaf and root tissues were correlated with TRIA-induced early bolting. The combined treatment of TRIA (0.3 microM), cerium nitrate (0.1 microM) and lanthanum nitrate (0.1 mM) resulted in a significant increase in the endogenous concentrations of total cytokinins of the IP subfamily in the root and leaf tissues compared to plants growing in the basal medium and medium with TRIA. The exogenous application of six natural cytokinins to the plants revealed that only isopentenyl adenosine (iPAdos) was as effective as TRIA on floral bud formation. iPAdos was also found to have similar effects as TRIA on root growth and reproductive growth. These results suggest a correlation between the early bolting induced by TRIA, cerium and lanthanum and the production of higher concentrations of endogenous iPAdos. (+info)X-ray imaging of shock waves generated by high-pressure fuel sprays. (7/177)
Synchrotron x-radiography and a fast x-ray detector were used to record the time evolution of the transient fuel sprays from a high-pressure injector. A succession of 5.1-microsecond radiographs captured the propagation of the spray-induced shock waves in a gaseous medium and revealed the complex nature of the spray hydrodynamics. The monochromatic x-radiographs also allow quantitative analysis of the shock waves that has been difficult if not impossible with optical imaging. Under injection conditions similar to those found in operating engines, the fuel jets can exceed supersonic speeds and result in gaseous shock waves. (+info)Measurement of dissolved oxygen based on enhanced cerium(IV) chemiluminescence. (8/177)
The reaction of Ce(IV) with pyrogallol caused chemiluminescence, which was enhanced by dissolved oxygen. Dissolved oxygen in water was able to help in the determination by enhancing the chemiluminescence intensity. The limit of detection calculated from 3sigma was 43 micromol/dm3, and the relative standard deviation was 1.2% at 613 micromol/dm3 (n = 5). The results obtained for natural and tap water samples were compared with those provided by conventional methods; the agreement between them corroborated the usefulness of the proposed method. The chemiluminescence mechanism was studied by examining the effect of interference with Cl- and measuring the chemiluminescence spectrum. The chemiluminescence emitter, however, could not be identified. (+info)Cerium is a chemical element with the symbol "Ce" and atomic number 58. It belongs to the lanthanide series in the periodic table and is the second element in this series. Cerium is a solid at room temperature, with a silver-white appearance and has a face-centered cubic crystal structure.
In medicine, cerium oxide nanoparticles have been studied for their potential therapeutic applications, particularly in neurodegenerative diseases such as Alzheimer's and Parkinson's disease. These nanoparticles are believed to have antioxidant properties that can help protect neurons from oxidative stress and inflammation. However, more research is needed to fully understand the safety and efficacy of cerium-based therapies in medical treatments.
Cerium is a naturally occurring element found in the Earth's crust, and it has several radioisotopes, which are radioactive isotopes or forms of cerium. These isotopes have unstable nuclei that emit radiation as they decay into more stable forms. Here are some examples of cerium radioisotopes:
* Cerium-134: This radioisotope has a half-life of about 3.12 days, which means that half of its atoms will decay into other elements in this time period. It decays by emitting beta particles and gamma rays.
* Cerium-137: This is a long-lived radioisotope with a half-life of about 2.5 years. It decays by emitting beta particles and gamma rays, and it can be used in medical imaging and cancer treatment. However, if released into the environment, it can pose a radiation hazard to humans and other organisms.
* Cerium-141: This radioisotope has a half-life of about 32.5 days, and it decays by emitting beta particles and gamma rays. It is produced in nuclear reactors and can be used for research purposes.
* Cerium-144: This radioisotope has a half-life of about 284 days, and it decays by emitting beta particles and gamma rays. It is produced in nuclear reactors and can be used for research purposes.
It's important to note that handling and working with radioisotopes requires proper training and protective measures to ensure safety and prevent radiation exposure.
Cerium is a naturally occurring element found in the Earth's crust, and it has several stable and unstable (radioactive) isotopes. Isotopes are variants of an element that have the same number of protons but different numbers of neutrons in their atomic nuclei. The unstable cerium isotopes undergo radioactive decay, emitting radiation in the process.
The stable isotopes of cerium include:
* Cerium-140 (^140 Ce)
* Cerium-142 (^142 Ce)
The unstable or radioactive isotopes of cerium include:
* Cerium-135 (^135 Ce), with a half-life of about 2.2 trillion years
* Cerium-136 (^136 Ce), with a half-life of about 13 days
* Cerium-137 (^137 Ce), with a half-life of about 30 years
* Cerium-138 (^138 Ce), with a half-life of about 4.5 days
* Cerium-139 (^139 Ce), with a half-life of about 137 days
* Cerium-141 (^141 Ce), with a half-life of about 32 days
* Cerium-143 (^143 Ce), with a half-life of about 1.4 days
* Cerium-144 (^144 Ce), with a half-life of about 285 days
These radioactive isotopes are produced in nuclear reactions, such as those that occur in nuclear reactors or during nuclear weapons testing. They can be used for medical and industrial purposes, but they must be handled carefully due to their radioactivity.
Medical definitions generally refer to terms and concepts within the medical field. The term "metal nanoparticles" is more commonly used in materials science, chemistry, and physics. However, I can provide a general scientific definition that could be relevant to medical applications:
Metal nanoparticles are tiny particles with at least one dimension ranging from 1 to 100 nanometers (nm), composed of metals or metal compounds. They have unique optical, electronic, and chemical properties due to their small size and high surface-to-volume ratio, making them useful in various fields, including medical research. In medicine, metal nanoparticles can be used in drug delivery systems, diagnostics, and therapeutic applications such as photothermal therapy and radiation therapy. Examples of metals used for nanoparticle synthesis include gold, silver, and iron.
Rare earth metals, also known as rare earth elements, are a group of 17 metallic elements found in the periodic table. They include:
1. Lanthanum (La)
2. Cerium (Ce)
3. Praseodymium (Pr)
4. Neodymium (Nd)
5. Promethium (Pm)
6. Samarium (Sm)
7. Europium (Eu)
8. Gadolinium (Gd)
9. Terbium (Tb)
10. Dysprosium (Dy)
11. Holmium (Ho)
12. Erbium (Er)
13. Thulium (Tm)
14. Ytterbium (Yb)
15. Lutetium (Lu)
1
An encyclopedia is a comprehensive reference work containing articles on various topics, usually arranged in alphabetical order. In the context of medicine, a medical encyclopedia is a collection of articles that provide information about a wide range of medical topics, including diseases and conditions, treatments, tests, procedures, and anatomy and physiology. Medical encyclopedias may be published in print or electronic formats and are often used as a starting point for researching medical topics. They can provide reliable and accurate information on medical subjects, making them useful resources for healthcare professionals, students, and patients alike. Some well-known examples of medical encyclopedias include the Merck Manual and the Stedman's Medical Dictionary.
I'm sorry for any confusion, but the term "Saturn" is not a medical term. In general, it refers to the sixth planet from the sun in our solar system. If you have any medical concerns or questions, I would be happy to try and help answer those for you.
In medical terms, the term "atmosphere" is not typically used as a standalone definition or diagnosis. However, in some contexts, it may refer to the physical environment or surroundings in which medical care is provided. For example, some hospitals and healthcare facilities may have different atmospheres depending on their specialties, design, or overall ambiance.
Additionally, "atmosphere" may also be used more broadly to describe the social or emotional climate of a particular healthcare setting. For instance, a healthcare provider might describe a patient's home atmosphere as warm and welcoming, or a hospital ward's atmosphere as tense or chaotic.
It is important to note that "atmosphere" is not a medical term with a specific definition, so its meaning may vary depending on the context in which it is used.
A bioreactor is a device or system that supports and controls the conditions necessary for biological organisms, cells, or tissues to grow and perform their specific functions. It provides a controlled environment with appropriate temperature, pH, nutrients, and other factors required for the desired biological process to occur. Bioreactors are widely used in various fields such as biotechnology, pharmaceuticals, agriculture, and environmental science for applications like production of therapeutic proteins, vaccines, biofuels, enzymes, and wastewater treatment.
Samarium is not a medical term itself, but it is a chemical element with the symbol Sm and atomic number 62. It is a silvery-white metallic element that belongs to the lanthanide series in the periodic table.
However, samarium-153 (Sm-153) is a radioactive isotope of samarium that has medical applications. It is used as a therapeutic agent for the treatment of painful bone metastases, particularly in patients with prostate or breast cancer. Sm-153 is combined with a chelating agent to form a complex that can be injected into the patient's bloodstream. The chelating agent helps to ensure that the samarium is distributed throughout the body and is not taken up by healthy tissues. Once inside the body, Sm-153 emits beta particles, which can destroy cancer cells in the bones and relieve pain.
Therefore, while samarium is not a medical term itself, it does have medical applications as a therapeutic agent for the treatment of bone metastases.
Nanoparticles are defined in the field of medicine as tiny particles that have at least one dimension between 1 to 100 nanometers (nm). They are increasingly being used in various medical applications such as drug delivery, diagnostics, and therapeutics. Due to their small size, nanoparticles can penetrate cells, tissues, and organs more efficiently than larger particles, making them ideal for targeted drug delivery and imaging.
Nanoparticles can be made from a variety of materials including metals, polymers, lipids, and dendrimers. The physical and chemical properties of nanoparticles, such as size, shape, charge, and surface chemistry, can greatly affect their behavior in biological systems and their potential medical applications.
It is important to note that the use of nanoparticles in medicine is still a relatively new field, and there are ongoing studies to better understand their safety and efficacy.
In the context of medical and health sciences, particle size generally refers to the diameter or dimension of particles, which can be in the form of solid particles, droplets, or aerosols. These particles may include airborne pollutants, pharmaceutical drugs, or medical devices such as nanoparticles used in drug delivery systems.
Particle size is an important factor to consider in various medical applications because it can affect the behavior and interactions of particles with biological systems. For example, smaller particle sizes can lead to greater absorption and distribution throughout the body, while larger particle sizes may be filtered out by the body's natural defense mechanisms. Therefore, understanding particle size and its implications is crucial for optimizing the safety and efficacy of medical treatments and interventions.
I'm sorry for any confusion, but "Ytterbium" is not a medical term. It is a chemical element with the symbol "Yb" and atomic number 70. Ytterbium is a rare earth metal that is silvery white, soft, malleable, and has many uses in scientific research, particularly in the field of laser technology.
If you have any medical questions or terms you would like me to define, please let me know!
I'm sorry for any confusion, but "Hempa" is not a term commonly used in medical terminology. It's possible that there may be a typo or misunderstanding in the term you're looking for. If you're referring to "hemp," I can provide some information related to this.
Hemp is a variety of the Cannabis sativa plant species that is grown specifically for industrial purposes. It has very low concentrations of tetrahydrocannabinol (THC), the main psychoactive compound found in cannabis, making it unsuitable for use as a recreational drug. Hemp is used to produce a wide range of products, including textiles, paper, rope, biodegradable plastics, paint, insulation, biofuel, food, and animal feed.
If you meant to ask about something else or if there's more information you need regarding hemp, please let me know!
Cerium - Wikipedia
Cerium Networks
Lemon Grass Tea (Cerium Limao) Recipe | Food Network
Arcteryx Men's Cerium Vest - Moosejaw
Cerium(IV) oxide | CeO2 | ChemSpider
WebElements Periodic Table » Cerium » reactions of elements
PLUTONIUM-CERIUM-COBALT AND PLUTONIUM-CERIUM-NICKEL ALLOYS (Patent) | DOE Patents
FLC | High Performance Aluminum Cerium (ACE) Alloys
Approaches for the Quantitative Analysis of Oxidation State in Cerium Oxide Nanomaterials | NIST
D3970 Standard Test Method for Cerium in Paint Driers by Oxidimetric Determination
Cerium Oxide Samarium doped Nanoparticle Dispersion | AMERICAN ELEMENTS ®
More Insight on Structure of New Binary Cerium Borate Glasses
Sample of the element Cerium in the Periodic Table
Sample of the element Cerium in the Periodic Table
Cerium-144 oxide | CeO2 | CID 44144625 - PubChem
Sample of the element Cerium in the Periodic Table
1408.2815] Interplay of spin-orbit and entropic effects in Cerium
Arc'teryx Mens Cerium Vest | Price Match + 3-Year Warranty | Snow+Rock
Cerium - Wikipedia
cerium Meaning, Scrabble Points + Words With Friends Score
BASTNASITE (Cerium Lanthanum Yttrium Carbonate Fluoride)
MONAZITE (Cerium Lanthanum Thorium Neodymium Yttrium Phosphate)
Forum Style - Cerium-D GoldX for vb5.6.4 by sultantheme.com - vBulletin.org Forum
Extraction and Recovery of Cerium from Rare Earth Ore by Solvent Extraction | IntechOpen
Photoabsorption Studies of Some Closed-shell ions in the Cerium Isonuclear Sequence - Amrita Vishwa Vidyapeetham
Cerium (Ce) : United Nuclear , Scientific Equipment & Supplies, United Nuclear , Scientific Equipment & Supplies
"Synthesis and Catalytic Activity of Nanostructured Cerium Oxide" by Neil J. Lawrence
Pedigree Ski Shop | Arcteryx M23 Cerium Hoody
Cerium Isotopes | Profiles RNS
CeO26
- More dramatically, metallic cerium can be highly pyrophoric: Ce + O2 → CeO2 Being highly electropositive, cerium reacts with water. (wikipedia.org)
- Cerium oxide can be described as an inorganic compound, with chemical formula CeO2. (tatayoung.com)
- Sample compounds that contain Cerium are CeO2, [Ce(NH3)6][FeCl4]3, CeB6, Ce(SO4)2, Ce2(SO4)3, Ce(IO3)4. (webqc.org)
- Cerium oxide (CeO2) nanoparticle s are one such material used in a variety of products, including solar cells and gas sensors. (cdc.gov)
- For example, materials such as cerium dioixde (CeO2) are used in both self-cleaning ovens and to clean exhaust fumes from cars. (lu.se)
- Objective: Assess nanoceria (cerium oxide, CeO2 nanoparticle) uptake time course and organ distribution, cellular and oxidative stress, and bioprocessing as a function of mouse strain. (cdc.gov)
Oxide nanoparticles2
- The use of cerium oxide nanoparticles has potential as a sunscreen agent to protect skin from UV damage. (world-english.org)
- It was found that the number of stable OVDs on cerium oxide nanoparticles and nanotubes can be increased with annealing at elevated temperatures under low pressure. (unl.edu)
Lanthanum6
- If cerium will do, then so will lanthanum, or half a dozen others. (theodoregray.com)
- A case in point is lighter "flints" which are actually made of a mixture of rare earths, primarily cerium and lanthanum, alloyed with iron. (theodoregray.com)
- This mischmetal has not been alloyed with iron, as it would be in a flint: It's a mixture of predominantly cerium (54% cerium is a common for mischmetal), with most of the remainder being lanthanum. (theodoregray.com)
- Bastnasite has cerium, lanthanum and yttrium in its generalized formula but officially the mineral is divided into three minerals based on the predominant rare earth element. (galleries.com)
- Uses: As an ore of rare earth metals especially thorium, cerium and Lanthanum, radioactive dating uses and as mineral specimens. (galleries.com)
- Monazite is a primary ore of several rare earth metals most notably thorium, cerium and lanthanum. (galleries.com)
Dioxide4
- The cerium dioxide pure product is a white cubic crystal or heavy powder. (tatayoung.com)
- Cerium dioxide, a Jekyll and Hyde nanomaterial, can increase basal and" by Robert Yokel, Marsha L. Ensor et al. (uky.edu)
- Data supporting the publication "Thermodynamic Evolution of Cerium Oxide Nanoparticle Morphology Using Carbon Dioxide" DOI : 10.1021/acs.jpcc.0c07437 URL : https://pubs.acs.org/doi/abs/10.1021/acs.jpcc.0c07437 Contained within are the the initial and final configurations from the VASP calculations. (hud.ac.uk)
- Catalyst crystal of cerium dioxide with a small copper oxide on the surface, imaged by electron microscopy. (lu.se)
Oxides2
- We also make an extensive comparison of atomic basis sets suitable for periodic calculations of these cerium oxides. (diva-portal.org)
- In this work, electrodes composed of reduced graphene oxide, multiwall carbon nanotubes, as well as cerium and manganese oxides were fabricated through reactive inverse matrix-assisted pulsed laser evaporation (RIMAPLE). (icmab.es)
Hydroxide2
- The silvery white metal cerium is quite electropositive and reacts slowly with cold water and quite quickly with hot water to form cerium hydroxide, Ce(OH) 3 , and hydrogen gas (H 2 ). (webelements.com)
- Cerium metal foil was first anodized into adherent porous cerium hydroxide film, followed by calcination for conversion into ceria membranes. (unl.edu)
Nanoparticle1
- The role of valence state in cerium oxide nanoparticle toxicity. (cdc.gov)
Monazite2
- Despite always occurring in combination with the other rare-earth elements in minerals such as those of the monazite and bastnäsite groups, cerium is easy to extract from its ores, as it can be distinguished among the lanthanides by its unique ability to be oxidized to the +4 state in aqueous solution. (wikipedia.org)
- Bastnasite and the phosphate mineral monazite are the two largest sources of cerium, an important industrial metal. (galleries.com)
Arc'teryx2
- The perfect down jacket for city-living or layering in harsher environments, Canada's finest outdoor experts Arc'Teryx share their Cerium SL hooded down jacket. (endclothing.com)
- The Arc'teryx Women's Cerium LT Hoody is a down jacket for lightweight warmth in the backcountry. (backpackers.com)
Oxidation state2
- Cerium is the second element in the lanthanide series, and while it often shows the oxidation state of +3 characteristic of the series, it also has a stable +4 state that does not oxidize water. (wikipedia.org)
- The cerium oxidation state in such complexes is discussed intensively, whereas contradictory results are reported [2]. (science24.com)
Silvery-white metal1
- Cerium is a soft, ductile, and silvery-white metal that tarnishes when exposed to air. (wikipedia.org)
Reacts2
- Cerium metal reacts with all the halogens to form cerium(III) halides. (webelements.com)
- Cerium tarnishes easily, reacts with water and burns when heated. (newmet.com)
Ceria3
- Cerium oxide (ceria, CeO 2-x where x is 0 to 0.5) has been one of the most widely used heterogeneous catalysts particularly in three way catalytic converters. (unl.edu)
- These properties, combined with the abundance of cerium on earth, make ceria a low-cost highly effective alternative to noble metal catalysts. (unl.edu)
- In this paper we evaluate the performance of density functional theory with the B3LYP functional for calculations on ceria (CeO 2 ) and cerium sesquioxide (Ce 2 O 3 ). (diva-portal.org)
Catalytic4
- Today, cerium and its compounds have a variety of uses: for example, cerium(IV) oxide is used to polish glass and is an important part of catalytic converters. (wikipedia.org)
- The great importance of cerium ions is known [13] - [19] to come from their interesting characteristics such as physical, optical, catalytic and as well as magnetic properties. (scirp.org)
- Cerium is used as a catalyst in petroleum refining and automotive catalytic converters. (world-english.org)
- The effect on the catalytic activity of cerium oxide caused by varying the density of oxygen vacancy defects (OVD) has not been previously studied experimentally. (unl.edu)
Phosphate3
- In contrast, both macrophage phenotypes show identical nanoceria biotransformation to cerium phosphate nanoneedles and simultaneous nanoceria with ferritin co-precipitation within the cells. (cdc.gov)
- Electron microscopy showed intracellular nanoceria particles bioprocessed to form crystalline cerium phosphate nanoneedles. (cdc.gov)
- Nanoceria uptake, initiation of bioprocessing, and crystalline cerium phosphate nanoneedle formation were rapid. (cdc.gov)
Nanomaterials1
- Cerium oxide nanomaterials (nanoceria, CNMs) are receiving increased attention from the research community due to their unique chemical properties, most prominent of which is their ability to alternate between the Ce3+ and Ce4+ oxidation states. (nist.gov)
Hoody1
- The Cerium Hoody was previously the Cerium LT Hoody. (pedigreeskishop.com)
Isotopes4
- Cerium Isotopes" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . (umassmed.edu)
- Ce-136, 138, and 142 are stable cerium isotopes. (umassmed.edu)
- This graph shows the total number of publications written about "Cerium Isotopes" by people in this website by year, and whether "Cerium Isotopes" was a major or minor topic of these publications. (umassmed.edu)
- Below are the most recent publications written about "Cerium Isotopes" by people in Profiles. (umassmed.edu)
Catalysts1
- The chemical equilibrium reactions on the catalysts surface under low pressure were hypothesized to explain the unusual increase in the OVD density of the reported cerium oxide nanostructured catalysts. (unl.edu)
Purity3
- After acid leaching of rare earth minerals, leaching solution was obtained, and cerium oxide of products of high purity was obtained by extraction and stripping. (intechopen.com)
- High purity Cerium sample for collectors & display. (unitednuclear.com)
- High purity cerium has applications in magnetic alloys. (newmet.com)
Stable2
- Both γ and β forms are quite stable at room temperature, although the equilibrium transformation temperature is estimated at 75 °C. At lower temperatures the behavior of cerium is complicated by the slow rates of transformation. (wikipedia.org)
- Stable cerium atoms that have the same atomic number as the element cerium, but differ in atomic weight. (umassmed.edu)
Ions1
- Sindhu Kalyadan, "Photoabsorption Studies of Some Closed-shell ions in the Cerium Isonuclear Sequence," NCAMP-XX, 9 - 12 December, 2014, IIST Trivandrum. (amrita.edu)
Valence2
- Most lanthanides can use only three electrons as valence electrons, as afterwards the remaining 4f electrons are too strongly bound: cerium is an exception because of the stability of the empty f-shell in Ce4+ and the fact that it comes very early in the lanthanide series, where the nuclear charge is still low enough until neodymium to allow the removal of the fourth valence electron by chemical means. (wikipedia.org)
- These basis sets are based on a 28 electron effective core potential (ECP) and 30 electrons are attributed to the valence space of cerium. (diva-portal.org)
Atoms2
- The change of chemical shift of 11 B nuclei upon exchanging B 2 O 3 with CeO 2 confirms that the central boron atoms would be coordinated with tetrahedral cerium atoms as second neighbors. (scirp.org)
- Changing in cerium environment around boron central atoms explains the dominant role of cerium oxide when it enters to the glass matrix as a glass former. (scirp.org)
Fluoride1
- We also supply cerium (III) chloride, cerium (III) fluoride anhydrous, cerium (IV) oxide and cerium oxide. (newmet.com)
Metals1
- Uses: As an important ore of cerium and other rare earth metals and as mineral specimens. (galleries.com)
Tarnishes1
- Cerium metal tarnishes slowly in air and burns readily to form cerium (IV) oxide, CeO 2 . (webelements.com)
Foil1
- We supply cerium in foil and rod forms. (newmet.com)
Hexagonal1
- The CeF layers form flat hexagonal sheets with each cerium bonded to three fluorines. (galleries.com)
Atomic weight1
- Cerium atomic weight is 140.1161 amu. (webqc.org)
Ferrocerium2
- Cerium metal is used in ferrocerium lighters for its pyrophoric properties. (wikipedia.org)
- Cerium is used in the manufacture of ferrocerium, which is a material used in lighters to produce sparks. (world-english.org)
Hydrogen gas1
- Cerium metal dissolves readily in dilute sulphuric acid to form solutions containing the colourless aquated Ce(III) ion together with hydrogen gas, H 2 . (webelements.com)
Density1
- It was concluded that higher light yield and density make this glass become promising candidate for cerium doped dense glass scintillator. (spie.org)
Magnesium2
- Cerium is added to magnesium alloys to improve their high-temperature creep resistance. (world-english.org)
- Valiathan SM, Kartha CC. Endomyocardial fibrosis--the possible connexion with myocardial levels of magnesium and cerium. (medscape.com)
Determination1
- 1.1 This test method covers the titrimetric determination of cerium in liquid cerium and rare earth paint driers and utilizes ferrous ammonium sulfate. (astm.org)
Self-clean1
- Cerium is used in the production of self-cleaning ovens, as it has the ability to oxidize and break down food residue. (world-english.org)
Carbon2
- Cerium has various uses such as in alloys, as a catalyst, in glass and as a component in carbon arc lighting. (world-english.org)
- Thorough morphological and compositional studies of the electrodes demonstrated the laser-induced reduction of graphene oxide, besides the crystallization of a mixture of cerium and manganese oxide nanostructures decorating the carbon nanoentities during the deposition process. (icmab.es)
Burns1
- Cerium Nitrate Treatment in the Management of Burns. (bvsalud.org)
Powder1
- This glass for hard disks is conventionally polished using a fine powder of a cerium oxide, but cerium is a rare-earth element in short supply. (raremetalblog.com)
Abundant3
- Cerium is the maist abundant o the rare yird elements , makin up aboot 0.0046% o the Yird's crust bi wicht. (wikipedia.org)
- Cerium belongs to the lanthanide series and is the most abundant and widely distributed of the rare-earth elements. (world-english.org)
- Dredge concentrates contain abundant uranothorianite, a mineral species which incorporates cerium subgroup ree. (cdc.gov)
Lighters1
- Cerium is used in the production of flints for cigarette lighters and firearms. (world-english.org)
Content3
- 4.1 This test method may be used to confirm in the presence of rare earths the stated cerium content of liquid pure cerium or rare earth driers manufactured for use in the coatings industry. (astm.org)
- Cerium thus behaves more as a glass modifier in low cerium content and plays the dual role at higher CeO 2 concentration. (scirp.org)
- Cerium (Ce) is the rare earth element with the highest content in light rare earth ore. (intechopen.com)
Element4
- Cerium is a chemical element with the symbol Ce and atomic number 58. (wikipedia.org)
- Cerium is the second element of the lanthanide series. (wikipedia.org)
- Cerium is a chemical element wi seembol Ce an atomic nummer 58. (wikipedia.org)
- Cerium is an element number 58 from n/a family. (webqc.org)
Glass3
- The X-ray diffraction of cerium rich glass is clearly indicated that the formation of crystalline phases refer s to CeO 4 , CeBO 3 and Ce(BO 2 ) 3 species. (scirp.org)
- The glass samples have been prepared by the normal melting method using cerium oxide (CeO 2 ) and boric oxide (H 3 BO 3 ) as starting materials. (scirp.org)
- The compound cerium oxide is used as a polishing agent for glass and stones. (world-english.org)
Main1
- This clearly had implications for one of the main markets for cerium. (raremetalblog.com)
Metal3
- Like the other lanthanides, cerium metal is a good reducing agent, having standard reduction potential of E⦵ = −2.34 V for the Ce3+/Ce couple. (wikipedia.org)
- A centimeter-sized sample of cerium metal corrodes completely in about a year. (wikipedia.org)
- Cerium oxide is well known to exfoliate from the surface of cerium metal in the same way that rust exfoliates from iron or steel. (unl.edu)
White1
- Cerium-doped YAG phosphor is used in conjunction with blue light-emitting diodes to produce white light in most commercial white LED light sources. (wikipedia.org)