F
François Guyot
Researcher at University of Paris
Publications - 306
Citations - 14215
François Guyot is an academic researcher from University of Paris. The author has contributed to research in topics: Carbonation & Magnetosome. The author has an hindex of 61, co-authored 292 publications receiving 12444 citations. Previous affiliations of François Guyot include Pierre-and-Marie-Curie University & European Synchrotron Radiation Facility.
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Iron partitioning in Earth's Mantle: Toward a deep lower mantle discontinuity
James Badro,Guillaume Fiquet,François Guyot,Jean-Pascal Rueff,Viktor V. Struzhkin,György Vankó,Giulio Monaco +6 more
TL;DR: A high-spin to low-spin transition occurring in the 60- to 70-gigapascal pressure range, corresponding to depths of 2000 kilometers in Earth's lower mantle, implies that the partition coefficient of iron between ferropericlase and magnesium silicate perovskite, the two main constituents of the lower mantle), may increase by several orders of magnitude.
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The chemical composition of the Earth: Enstatite chondrite models
Marc Javoy,Edouard Kaminski,François Guyot,Denis Andrault,Chrystele Sanloup,Manuel Moreira,Stéphane Labrosse,Albert Jambon,Pierre Agrinier,Anne Davaille,Claude Jaupart +10 more
TL;DR: In this paper, the authors proposed a new model of Earth's bulk composition based on enstatite chondrites (E-chondrites), the only chondrite group isotopically identical to the Earth.
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Electronic transitions in perovskite: possible nonconvecting layers in the lower mantle.
TL;DR: The proportion of iron in the low spin state grows with depth, increasing the transparency of the mantle in the infrared region, with a maximum at pressures consistent with the D″ layer above the core-mantle boundary, which suggests the existence of nonconvecting layers in the lowermost mantle.
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Chains of magnetosomes extracted from AMB-1 magnetotactic bacteria for application in alternative magnetic field cancer therapy.
Edouard Alphandéry,Stéphanie Faure,Olivier Seksek,François Guyot,François Guyot,Imène Chebbi +5 more
TL;DR: The antitumoral activity of the extracted chains of magnetosomes is demonstrated further by showing that they can be used to fully eradicate a tumor xenografted under the skin of a mouse and the higher efficiency of the extracts compared with various other materials is attributed to three factors.
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Iron biomineralization by anaerobic neutrophilic iron-oxidizing bacteria
Jennyfer Miot,Karim Benzerara,Guillaume Morin,Andreas Kappler,Sylvain Bernard,Martin Obst,Céline Férard,Fériel Skouri-Panet,Jean-Michel Guigner,Nicole R. Posth,Matthieu E. Galvez,Gordon E. Brown,François Guyot +12 more
TL;DR: In this article, the authors investigated iron biomineralization by the anaerobic nitrate-dependent iron-oxidizing bacterium Acidovorax sp. strain BoFeN1 in the presence of dissolved Fe(II) using electron microscopy and Scanning Transmission X-ray Microscopy (STXM).