Search Results - "TESTEMALE, D"
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Copper(I) targeting in the Alzheimer's disease context: a first example using the biocompatible PTA ligand
Published in Metallomics (01-08-2015)“…Copper(I) coordinating ligands in the Alzheimer's disease context have remained unexplored, despite the biological relevance of this redox state of the copper…”
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Modern and past volcanic degassing of iodine
Published in Geochimica et cosmochimica acta (15-01-2016)“…We have monitored iodine degassing from a melt to a water vapor during decompression (i.e. magma ascent). Experiments have been performed by combining diamond…”
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In situ X-ray absorption spectroscopy using the FAME autoclave: a window into fluid-mineral-melt interactions in the Earth's crust
Published in High pressure research (02-07-2024)“…We discuss the X-ray absorption spectroscopy (XAS) methods elaborated using the high pressure and high-temperature autoclaves installed at FAME and FAME-UHD…”
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An in situ XAS study of copper(I) transport as hydrosulfide complexes in hydrothermal solutions (25–592 °C, 180–600 bar): Speciation and solubility in vapor and liquid phases
Published in Geochimica et cosmochimica acta (15-08-2010)“…Chloride and hydrosulfide are the principal ligands assumed to govern transport of copper in hydrothermal fluids. Existing solubility experiments suggest that…”
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Thermodynamics of chromium in UO2 fuel: A solubility model
Published in Journal of nuclear materials (01-04-2014)“…The solubility and speciation of chromium in doped uranium oxide are measured in carefully controlled temperature and oxygen potential conditions using…”
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An XAS study of the structure and thermodynamics of Cu(I) chloride complexes in brines up to high temperature (400 °C, 600 bar)
Published in Geochimica et cosmochimica acta (15-10-2007)“…The transport and deposition of copper in saline hydrothermal fluids are controlled by the stability of copper(I) complexes with ligands such as chloride…”
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Structural characterization of the active form of PerR: insights into the metal-induced activation of PerR and Fur proteins for DNA binding
Published in Molecular microbiology (01-07-2009)“…In Bacillus subtilis, the transcription factor PerR is an iron dependant sensor of H₂O₂. The sensing mechanism relies on a selective metal catalysed oxidation…”
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Growth and properties of CoO/Fe perpendicular exchange coupled ultra-thin films
Published in Journal of magnetism and magnetic materials (01-12-2017)“…•Exchange coupling controls perpendicular magnetic anisotropy in a CoO/Fe bilayer.•In situ and ex-situ X-ray scattering techniques determine structural…”
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Spectroscopic characterization of microscopic hydrogen-bonding disparities in supercritical water
Published in The Journal of chemical physics (15-10-2005)“…The local hydrogen-bonding environment in supercritical water (380 degrees C, 300 bars, density 0.54 gcm3) was studied by x-ray Raman scattering at the oxygen…”
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Dynamics of iron-bearing borosilicate melts: Effects of melt structure and composition on viscosity, electrical conductivity and kinetics of redox reactions
Published in Journal of non-crystalline solids (01-08-2013)“…The dynamic properties of a series of iron-bearing sodium borosilicate melts have been investigated to determine how structure and composition control…”
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Nanostructured calcite precipitated under hydrothermal conditions in the presence of organic and inorganic selenium
Published in Chemical geology (24-11-2011)“…Selenium is an important trace metalloid, whose global cycle is controlled by fluid–rock interactions in the Earth's upper crust, interactions with…”
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New insight into the contributions of thermogenic processes and biogenic sources to the generation of organic compounds in hydrothermal fluids
Published in Geobiology (01-01-2011)“…Experiments on hydrothermal degradation of Pyrococcus abyssi biomass were conducted at elevated pressure (40 MPa) over a 200–450 °C temperature range in…”
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Monitoring microbial redox transformations of metal and metalloid elements under high pressure using in situ X-ray absorption spectroscopy
Published in Geobiology (01-03-2011)“…X-ray absorption spectroscopy is a well-established method for probing local structural and electronic atomic environments in a variety of systems. We used…”
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Science under Extreme Conditions of Pressures and Temperatures at the ESRF
Published in Synchrotron radiation news (01-09-2013)“…The last decades have witnessed an unprecedented surge in the study of matter and materials at extreme values of pressure and/or temperature. The fundamental…”
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The quest for ion pairing in supercritical aqueous electrolytes
Published in Journal of molecular liquids (01-11-2002)“…We have investigated the local structure around the bromine ion in three different alkali-brominated electrolytes in both ambient and supercritical conditions…”
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Effect of S on the aqueous and gaseous transport of Cu in porphyry and epithermal systems: Constraints from in situ XAS measurements up to 600°C and 300bars
Published in Chemical geology (05-09-2017)“…The effect of S on the solubility of Cu in high-temperature fluids at conditions relative to porphyry and epithermal ore deposit formation has been…”
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Effect of S on the aqueous and gaseous transport of Cu in porphyry and epithermal systems: Constraints from in situ XAS measurements up to 600 °C and 300 bars
Published in Chemical geology (05-09-2017)“…The effect of S on the solubility of Cu in high-temperature fluids at conditions relative to porphyry and epithermal ore deposit formation has been…”
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Rare earth element partitioning between sulphides and melt: Evidence for Yb2+ and Sm2+ in EH chondrites
Published in Geochimica et cosmochimica acta (15-11-2019)“…We present the first complete dataset of partition coefficients of Rare Earth Elements (REE) between oldhamites or molten FeS and silicate melts. Values have…”
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In-situ X-ray absorption study of Iron(II) speciation in brines up to supercritical conditions
Published in Chemical geology (30-06-2009)“…X-ray absorption spectroscopy (XAS) measurements were used to determine the coordination structure and to derive the speciation of aqueous ferrous chloride…”
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