The catalytic inactivation of Escherichia coli in water by a cerium (Ce)-promoted silver-loaded aluminum phosphate (Ag/ AlPO4) catalyst using molecular oxygen was investigated. With optimum Ce content, the Ag(Ce)/AlPO4 catalyst exhibited strong bactericidal activity. The process of decomposition of the cell wall and cell membrane was directly observed by TEM. The different morphological changes...

The plasma potential, V(p), is a key quantity in experimental plasma physics. Its spatial gradients directly yield the electrostatic field present. Emissive probes operating under space-charge limited emission conditions float close to V(p) even under time-varying conditions. Throughout their long history in plasma physics, they have mostly been constructed with resistively heated tungsten wire...

Acid phosphatase (ACPase) and glucose-6-phosphate dehydrogenase (G6PD) play important roles in cell biology/disease pathophysiology in various organs including the liver. The purpose of the present report is to introduce a new enzymecytochemical method to simultaneously demonstrate the subcellular localization of ACPase and G6PD within the same hepatocyte in the mouse liver. The ultrastructural...

We report X-Ray Absorption and X-Ray Photoemission measurements on crystal l ine and amorphous Pdl-xCex alloys. I n this system, cerium presents a concentration-induced valence change. A correlat ion between cerium electronic configuration and density of occupied states have been shown.Valence anomalies appear to be due t o the high palladium 4d density of states near the Ferrni level. The effe...

Tricalcium phosphate (TCP) has many advantages in biomedical applications especially teeth and bones, therefore researches focused on enhancing the properties of this material by different methods. Because importance cerium repairing performance cells human body, work aims to substitute TCP structure give better properties. Coating Ce/TCP SS 316L was applied radio frequency (RF) sputtering tech...

as an alternative to chromate conversion coatings, rare-earth coatings especially cerium, because of the low toxicity, have attracted considerable attention. using dip immersion method, cerium-based conversion coating was deposited on aluminum 2024. corrosion resistance was studied in 3.5 wt.% nacl solution using potentiodynamic polarization, electrochemical impedance spectroscopy, and surface ...

The electrochemical nitrate reduction reaction (NO3RR) has the potential for distributed water treatment and renewable chemical synthesis. Cu is an active monometallic electrocatalyst NO3RR in acidic alkaline electrolytes, where activity limited by of adsorbed to nitrite. Oxygen-vacancy forming metal-oxide supports provide sites N-O bond activation thermal reduction, impacting product distribut...

We discuss high pressure resistivity results on mixed valent cerium and europium systems in which magnetic order plays an important role. In the CeMn2Si2-based systems the magnetic order is due to the manganese sublattice, and the cerium mixed valentfheavy fermion effects persist at least in the ~tife~om~etic~ly ordered phase of these systems. In the EuO system, the europium ferromagnetic order...

In this paper, the adsorption of cerium on modified Mesoporous aluminosilicate (with Si/Al mole ratio of 10) was studied. The effects of pH, contact time, initial concentration of cerium on adsorption of cerium were investigated. The adsorption capacity was high in the pH range of 4-8 and decreases with decreasing of the pH value. The Langmuir and Freundlich isotherms were applied to represent ...

In recent years, nanotechnology has gained serious attention for diagnosis, prevention and treatment roles. In this study we synthesized nanoceria or CeO2NPs (cerium oxide nanoparticles) and compared toxicity of cerium oxide powder in nano and bulk forms in two cancerous and one normal cell lines. The cell lines were cultured in a standard humidified incubator, at 37 °C in a 5% CO2 atmosphere, ...