Olivier Proux
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View article: The role of hydrogen sulfide and trisulfur radical ion in molybdenum transport by hydrothermal fluids: implications for porphyry-epithermal Cu-Au-Mo deposits
The role of hydrogen sulfide and trisulfur radical ion in molybdenum transport by hydrothermal fluids: implications for porphyry-epithermal Cu-Au-Mo deposits Open
View article: HERFD-XAS evidence for an octahedrally coordinated CoSn-polysulfide precursor as a probe for the mechanism of pyrite formation
HERFD-XAS evidence for an octahedrally coordinated CoSn-polysulfide precursor as a probe for the mechanism of pyrite formation Open
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View article: Stability and Mitochondrial Localization of a Highly Cytotoxic Organogold(III) Complex with Diphosphine Ancillary Ligand in Lung Cancer Cells
Stability and Mitochondrial Localization of a Highly Cytotoxic Organogold(III) Complex with Diphosphine Ancillary Ligand in Lung Cancer Cells Open
We present a comprehensive study on the chemical reactivity in the gas phase, with amino acids and peptides, and in the cell, the anticancer activity and localization of a series of seven cationic biphenyl gold(III) complexes with aryl, al…
View article: Stability and Mitochondrial Localization of a Highly Cytotoxic Organogold(III) Complex with Diphosphine Ancillary Ligand in Lung Cancer Cells
Stability and Mitochondrial Localization of a Highly Cytotoxic Organogold(III) Complex with Diphosphine Ancillary Ligand in Lung Cancer Cells Open
We present a comprehensive study on the chemical reactivity in the gas phase, with amino acids and peptides, and in the cell, the anticancer activity and localization of a series of seven cationic biphenyl gold(III) complexes with aryl, al…
View article: Quantifying the transfers of metals and sulfur by geological fluids using in-situ spectroscopy
Quantifying the transfers of metals and sulfur by geological fluids using in-situ spectroscopy Open
International audience
View article: Nickel binding with magnetite nanoparticles
Nickel binding with magnetite nanoparticles Open
Nickel surface complexation, incorporation and surface precipitation processes are controlled by magnetite stoichiometry, which can affect nickel fate and behavior in the environment.
View article: Hydrothermal microwave synthesis of water soluble NIR-II emitting Ag <sub>2</sub> S quantum dots
Hydrothermal microwave synthesis of water soluble NIR-II emitting Ag <sub>2</sub> S quantum dots Open
Microwave-assisted synthesis using l -glutathione as the sulphur source and ligand yields Ag 2 S nanocrystals in a size range of 4–17 nm. Their evolution from the amorphous to the crystalline state leads to tuneable emission from 930 to 12…
View article: When Metal Complexes Evolve, and a Minor Species is the Most Active: the Case of Bis(Phenanthroline)Copper in the Catalysis of Glutathione Oxidation and Hydroxyl Radical Generation
When Metal Complexes Evolve, and a Minor Species is the Most Active: the Case of Bis(Phenanthroline)Copper in the Catalysis of Glutathione Oxidation and Hydroxyl Radical Generation Open
Several copper‐ligands, including 1,10‐phenanthroline (Phen), have been investigated for anticancer purposes based on their capacity to bind excess copper (Cu) in cancer tissues and form redox active complexes able to catalyse the formatio…
View article: On the Stability of an Atomically‐Dispersed Fe−N−C ORR Catalyst: An <i>In Situ</i> XAS Study in a PEMFC
On the Stability of an Atomically‐Dispersed Fe−N−C ORR Catalyst: An <i>In Situ</i> XAS Study in a PEMFC Open
The stability of Fe−N−C oxygen reduction reaction (ORR) electrocatalysts has been considered a primary challenge for their practical application in proton exchange membrane fuel cells (PEMFCs). While several studies have attempted to revea…
View article: When metal complexes evolve, and a minor species is the most active: the case of bis(phenanthroline)copper in the catalysis of glutathione oxidation and hydroxyl radical generation
When metal complexes evolve, and a minor species is the most active: the case of bis(phenanthroline)copper in the catalysis of glutathione oxidation and hydroxyl radical generation Open
Several copper-ligands, including 1,10-phenanthroline (Phen), have been investigated for anticancer purposes based on their capacity to bind excess Cu in cancer tissues and form redox active complexes able to catalyse the formation of reac…
View article: Identification of Key Active Species in the Conversion of C6 and C4 Sugars by Tungsten and Molybdenum Homogeneous Salts
Identification of Key Active Species in the Conversion of C6 and C4 Sugars by Tungsten and Molybdenum Homogeneous Salts Open
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View article: <i>In situ</i> X-ray absorption spectroscopy using the FAME autoclave: a window into fluid-mineral-melt interactions in the Earth’s crust
<i>In situ</i> X-ray absorption spectroscopy using the FAME autoclave: a window into fluid-mineral-melt interactions in the Earth’s crust Open
International audience
View article: Competition with glutathione explains the impact of lysosomal pH on the pro-oxidant and anticancer activity of the copper-phenanthroline complex
Competition with glutathione explains the impact of lysosomal pH on the pro-oxidant and anticancer activity of the copper-phenanthroline complex Open
Several Cu-ligands, including 1,10-phenanthroline (Phen), have been investigated for anticancer purposes based on their capacity to bind excess Cu in cancer tissues and form redox active complexes able to catalyse the formation of reactive…
View article: Novel high-pressure/high-temperature reactor cell for <i>in situ</i> and <i>operando</i> x-ray absorption spectroscopy studies of heterogeneous catalysts at synchrotron facilities
Novel high-pressure/high-temperature reactor cell for <i>in situ</i> and <i>operando</i> x-ray absorption spectroscopy studies of heterogeneous catalysts at synchrotron facilities Open
This paper presents the development of a novel high-pressure/high-temperature reactor cell dedicated to the characterization of catalysts using synchrotron x-ray absorption spectroscopy under operando conditions. The design of the vitreous…
View article: Deciphering the Structure of Tungstate and Molybdate Complexes with Glucose, Mannose, and Erythrose
Deciphering the Structure of Tungstate and Molybdate Complexes with Glucose, Mannose, and Erythrose Open
Combining nuclear magnetic resonance (NMR), X-ray absorption spectroscopy near-edge structure (XANES), and density functional theory (DFT), we elucidate the structures of tungstate and molybdate with sugars of interest in the conversion of…
View article: Behavior and Fate of Iter-Like Tungsten Nanoparticles Potentially Released into Freshwater Ecosystems During Tokamak Reactor Operation and Maintenance
Behavior and Fate of Iter-Like Tungsten Nanoparticles Potentially Released into Freshwater Ecosystems During Tokamak Reactor Operation and Maintenance Open
View article: Intracellular Fate of Sub-Toxic Concentration of Functionalized Selenium Nanoparticles in Aggressive Prostate Cancer Cells
Intracellular Fate of Sub-Toxic Concentration of Functionalized Selenium Nanoparticles in Aggressive Prostate Cancer Cells Open
Selenium 0 (Se0) is a powerful anti-proliferative agent in cancer research. We investigated the impact of sub-toxic concentrations of Se0 functionalized nanoparticles (SeNPs) on prostate cancer PC-3 cells and determined their intracellular…
View article: Identification of oxidized platinum single atoms on chlorinated γ–alumina support by density functional theory calculations and X-ray absorption spectroscopy
Identification of oxidized platinum single atoms on chlorinated γ–alumina support by density functional theory calculations and X-ray absorption spectroscopy Open
View article: Coupling High-Energy Resolution Fluorescence Detected X-ray Absorption Spectroscopy with Microfluidic Cells for in Situ Monitoring of Tungsten Nanoparticles Redox Transformation
Coupling High-Energy Resolution Fluorescence Detected X-ray Absorption Spectroscopy with Microfluidic Cells for in Situ Monitoring of Tungsten Nanoparticles Redox Transformation Open
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View article: Thallium Long-Term Fate from Rock-Deposit to Soil: The Jas Roux Sulfosalt Natural Analogue
Thallium Long-Term Fate from Rock-Deposit to Soil: The Jas Roux Sulfosalt Natural Analogue Open
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View article: Ex situ/Operando X‐Ray Absorption Spectroscopy on Fe<sub>0.07</sub>Zr<sub>0.93</sub>O<sub>2‐δ</sub>/C vs. Fe−N−C as Pt‐Group‐Metal‐Free Oxygen Reduction Reaction Catalysts in Proton Exchange Membrane Fuel Cells
Ex situ/Operando X‐Ray Absorption Spectroscopy on Fe<sub>0.07</sub>Zr<sub>0.93</sub>O<sub>2‐δ</sub>/C vs. Fe−N−C as Pt‐Group‐Metal‐Free Oxygen Reduction Reaction Catalysts in Proton Exchange Membrane Fuel Cells Open
In this study, ex situ and operando X‐ray absorption spectroscopy (XAS) is employed to shed light on structure and degradation mechanism of Fe‐based catalysts for the oxygen reduction reaction (ORR) in proton exchange membrane fuel cells (…
View article: Elucidation of Metal–Sugar Complexes: When Tungstate Combines with <scp>d</scp>-Mannose
Elucidation of Metal–Sugar Complexes: When Tungstate Combines with <span>d</span>-Mannose Open
The control of metal-sugar complexes speciation in solution is crucial in an energy transition context. Herein, the formation of tungstate-mannose complexes is unraveled in aqueous solution using a multitechnique experimental and theoretic…
View article: The role of Zn ions in the interaction between SARS-CoV-2 orf7a protein and BST2/tetherin
The role of Zn ions in the interaction between SARS-CoV-2 orf7a protein and BST2/tetherin Open
View article: Chasing the Elusive “In‐Between” State of the Copper‐Amyloid <i>β</i> Complex by X‐ray Absorption through Partial Thermal Relaxation after Photoreduction
Chasing the Elusive “In‐Between” State of the Copper‐Amyloid <i>β</i> Complex by X‐ray Absorption through Partial Thermal Relaxation after Photoreduction Open
The redox activity of Cu ions bound to the amyloid‐ β (A β ) peptide is implicated as a source of oxidative stress in the context of Alzheimer's disease. In order to explain the efficient redox cycling between Cu II ‐A β (distorted square‐…
View article: Chasing the Elusive “In‐Between” State of the Copper‐Amyloid <i>β</i> Complex by X‐ray Absorption through Partial Thermal Relaxation after Photoreduction
Chasing the Elusive “In‐Between” State of the Copper‐Amyloid <i>β</i> Complex by X‐ray Absorption through Partial Thermal Relaxation after Photoreduction Open
The redox activity of Cu ions bound to the amyloid‐ β (A β ) peptide is implicated as a source of oxidative stress in the context of Alzheimer's disease. In order to explain the efficient redox cycling between Cu II ‐A β (distorted square‐…
View article: Selenium nanoparticles modulate histone methylation via lysine methyltransferase activity and S-adenosylhomocysteine depletion
Selenium nanoparticles modulate histone methylation via lysine methyltransferase activity and S-adenosylhomocysteine depletion Open
View article: Selenium Nanoparticles Modulate Histone Methylation Via Lysine Methyltransferase Activity and S-Adenosylhomocysteine Depletion
Selenium Nanoparticles Modulate Histone Methylation Via Lysine Methyltransferase Activity and S-Adenosylhomocysteine Depletion Open
View article: Oxygen breath of subduction zones revealed by arsenic in serpentinite
Oxygen breath of subduction zones revealed by arsenic in serpentinite Open
View article: <i>Behavior and fate of tungsten-based nanoparticles and their biological impacts within freshwater ecosystems</i>
<i>Behavior and fate of tungsten-based nanoparticles and their biological impacts within freshwater ecosystems</i> Open
View article: Characterisation of uranium redox state in organic-rich marine sediments of the Cretaceous Toolebuc Formation, Australia
Characterisation of uranium redox state in organic-rich marine sediments of the Cretaceous Toolebuc Formation, Australia Open