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Showing 1 to 19 of 19 for “"Iron ions"”.
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ΜΗΧΑΝΙΣΜΟΣ ΔΙΑΒΡΩΣΗΣ ΣΙΔΗΡΟΥ ΣΕ ΔΙΑΛΥΜΑ ΧΛΩΡΙΟΥΧΟΥ ΝΑΤΡΙΟΥ ΚΑΙ ΠΡΟΣΤΑΣΙΑ ΜΕ ΧΡΩΜΑΤΑ ΚΑΙ ΠΟΛΥΜΕΡΗ
… THROUGH EXPERIMENTS, THE DIFFUSION OF IRON IONS EMERGING FROM STEEL SPECIMENS THROUGH CORROSION PREVENTING COATINGS. A SOLUTION OF SODIUM CHLORIDE IN WATER WAS USED AS CORROSIVE ENVIRONMENT.
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The Effect of The Solid-State Environment on Intramolecular Electron-Transfer Rates in Mixed-Valence Complexes (Ferrocene)
… controls the electron transfer between the two iron ions in the mixed-valence 1',6'-disubstituted biferrocene cation is emerging. The x-ray structures of diiodo-, dichloro-, and di-n-butylbiferrocenium triiodide salts have been determined. Two iron ions are on opposite sides of a planar …
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Space radiation-induced bystander signaling in 2D and 3D skin tissue models
… hazard to astronauts on long-duration missions, and the low fluences of charged particles characteristic of this field suggest that bystander effects, the phenomenon in which a greater number of cells exhibit damage than expected based on the number of cells traversed by radiation, could be …
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The electrochemical mediation of oxygen delignification of pulp with a manganese polyol complex
… for the larger Kappa number and viscosity reductions observed in experimental runs employing the manganese gluconate complex/oxygen redox cycle, than in corresponding runs in the absence of the manganese complex/oxygen redox cycle. For a pulp consistency of 1 %, in 1 M sodium hydroxide, with …
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In situ transmission electron microscopy ion irradiations of model iron-chromium alloys
Iron-chromium alloys are used as a model to study the microstructural evolution of defects in irradiated structural steel components of a nuclear reactor. We examine the effects of temperature and chromium concentration on the defect evolution and segregation behavior in the early stages of damage. …
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Structure, electronic levels, and ionic interactions of 1 nanometer silicon particles
… is amenable to rst principles quan- tum calculations of the structure, electronic levels, and ionic interactions. The vibrational modes of several candidate structures of the 1 nm particles are calculated at the Hartree-Fock level, and compared to previously acquired Raman spectra to determine …
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Mechanistic studies of iron uptake into, and release from, Ferritins
Abstract Iron is the most common and perhaps the most crucial transition metal. It is essential for virtually all of life yet it is also potentially extremely toxic; therefore, how organisms handle iron (iron metabolism) is of critical importance. Ferritins constitute a large family of iron storage …
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Luminescent Quantum dots for Cellular Analysis
… biological researchers since they provide solutions to problems associated with use of organic fluorophores in cellular studies. Quantum dots show high photostability, high emission quantum yield, narrow and symmetric emission peaks and size-dependent wavelength tunability. The objective of my …
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Structure and properties of iron phosphate glasses: A novel host matrix for the vitrification of high-level nuclear wastes
… and the chemical durability of vitreous binary iron phosphates of approximate batch composition 40Fe<sub>2</sub>O<sub>3</sub>-60P<sub>2</sub>O<sub>5</sub> (mol%) and those containing up to 40 wt% of one or more common nuclear waste components such as Na<sub>2</sub>O, CS<sub>2</sub>O, SrO, …
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Iron (III) Oxide and Copper (II) Oxide Mediated Formation of PCDD/Fs from Thermal Degradation of 2-MCP and 1,2-DCBz
… constitutes a major toxic component of environmental pollutants. Generally, it is well established that transition metal-mediated reactions account for the majority of PCDD/F emissions from combustion sources. Specifically, both copper and iron ions, which occur abundantly in combustion …
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Electron Transport via Single Molecule Magnets with Magnetic Anisotropy
… Stark effects. These effects allow applications of SMMs to high-density information storage, molecular spintronics, and quantum information science. Therefore, SMMs are of interest to physicists, chemists, and engineers. Recently, experimental fabrication of individual SMMs within transistor …
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Magnetic and electric properties of bismuth ferrite lead titanate ceramics
Solid solutions of multiferroic BiFeO3 doped with ferroelectric PbTiO3 (BFPT) can be prepared by conventional mixed oxide processing to produce a range of polycrystalline ceramics ranging throughout the xBiFeO3 - (1-x)PbTiO3 series. Sintered ceramics are shown to exhibit mixed tetragonal (P4mm) and …
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Metal induced degradation of leather
… processes and disposal of leather goods. Environmental directives encourage diversion of solid waste from landfills through viable recycling methods. Since leather is resistant to microbial degradation, direct recycling of leather waste through biodegradation methods are …
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Geochemical Analysis of Ironstone Preserved Molluscan Fossils of the Hell Creek Formation (Cretaceous) and Ludlow Member of the Fort Union Formation (Paleogene) of Southwestern North Dakota
… Montana and western North Dakota produce ironstone preserved freshwater molluscan fossils. Ironstone preserved mollusks are associated with ironstone nodules, which have been described as composed of iron carbonate, iron oxide, or manganese oxide by various researchers. To date, the exact …
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Template-Controlled Synthesis of Magnetic/Semiconducting Nanoparticles within Amphiphilic Core-Shell Cylindrical Polymer Brushes
… polymer core can coordinate with various metal ions. The hydrophilic core of polymer brushes, poly(acrylic acid), was neutralized by NaOH and afterward iron cations (Fe3+ and Fe2+) were loaded into the polymer core via ion exchange. The formation of the polychelates of polymer brushes and iron …
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Characterization of four members of the ferrous ion and Ü-ketoglutarate dependent hydroxylase family from Trypanosoma brucei : two thymine hydroxylase-like protens, J-binding protein 1, and an ALKB homolog
Thesis (Ph. D.)--Michigan State University. Biochemistry and Molecular Biology, 2010
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Superstructures of Magnetic Materials
… distortion is associated with the phase transitions. In both phases the crystal lattice has orthorhombic symmetry. A structure model of the incommensurately modulated structure in the charge-density wave state describes the structure with layers of Sm and Ni atoms, stacked along the c axis. …
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Isothermal Titration Calorimetry Studies Of Protein-Mediated Interactions And Preliminary Structural Studies Of Tandem Pdz1-2 Domain Of Psd-95 Protein
<p>Protein-mediated interactions that involve multiple ligands in their binding mechanisms are critical for many cellular functions. The primary focus of this dissertation research was to investigate such interactions for two proteins, the PDZ domain and frataxin, involving peptide and metal …