Expertise

Scientific Expertise

• Thermodynamics and kinetics applied to natural processes
• Biomineralization
• Mineralogy
• Geochemistry, Biogeochemistry
• Chemical Thermodynamics
• Mineral Physics

 

Analytical Skills

• Electron microscopies (SEM and TEM)
• Crystallography (X-ray Diffraction and Absorption)
• Geochemical Modeling (Chess)

Function and attachment

Professor MNHN

E-mail

fguyot(at)mnhn.fr

Career

Professional Resume

• Since 2017: Professor of Institut Universitaire de France (IUF)
• 2014-2019: Deputy Director of IMPMC
• Since 2013: Professor of the Muséum National d’Histoire Naturelle (MNHN Paris)
• 1995-2013: Professor of Institut de Physique du Globe de Paris (IPGP, France) - University Paris Diderot
• 1996-2001: Professor of Institut Universitaire de France (IUF)
• 1994-1995: Research Fellow at the Center for High Pressure Research, Stony Brook University, New York (USA)
• 1990-1994: CNRS Researcher in mineralogy/geochemistry at IPGP (Paris, France)
• 1988-1990: Research Assistant at the Center for High Pressure Research, Stony Brook University, New York (USA)
• 1986-1988: Teaching Assistant at the École Normale Supérieure (ENS Paris, France)

Educational Background

• Habilitation à diriger des recherches (HDR) - Physical and Chemical Properties of Deep Earth Materials - 1993.
• PhD. in Condensed Matter Physics, University Paris Curie & IPGP - 1988
• Agregation in Physics and Chemistry Sciences - 1985

Publications

• Total number of peer-reviewed scientific publications (July 2020): 242
• Total number of citations in scientific journals (July 2020): 12009
• H index (July 2020): 61
• ResearcherID: C-3824-2016

2020-2021 publications

-      J‐A Hernandez, G Morard, M Guarguaglini, R Alonso‐Mori, A Benuzzi‐Mounaix, R Bolis, G Fiquet, E Galtier, AE Gleason, S Glenzer, F Guyot, B Ko, HJ Lee, WL Mao, B Nagler, N Ozaki, AK Schuster, SH Shim, T Vinci, A Ravasio (2020) Direct Observation of Shock‐Induced Disordering of Enstatite Below the Melting Temperature. Geophysical Research Letters, 47

-      Daval, D., Guyot, F., Bolotov, I.N. et al. Symbiotic cooperation between freshwater rock-boring bivalves and microorganisms promotes silicate bioerosion. Sci Rep 10, 13385 (2020). https://doi.org/10.1038/s41598-020-70265-x

-       Adrien Néri, François Guyot, Bruno Reynard, Christophe Sotin (2020) A carbonaceous chondrite and cometary origin for icy moons of Jupiter and Saturn. Earth and Planetary Science Letters 530, 115920

-       Arnaud Bouissonnié, Damien Daval, Franco̧is Guyot, and Philippe Ackerer (2020) The Dissolution Anisotropy of Pyroxenes: Experimental Validation of a Stochastic Dissolution Model Based on Enstatite Dissolution. The Journal of Physical Chemistry C 2020 124 (5), 3122-3140 DOI: 10.1021/acs.jpcc.9b10824

-       Vincent P Milesi, Mathieu Debure, Nicolas CM Marty, Manuela Capano, Didier Jézéquel, Carl Steefel, Virgile Rouchon, Patrick Albéric, Edouard Bard, Gérard Sarazin, François Guyot, Aurélien Virgone, Éric C Gaucher, Magali Ader (2020) Early Diagenesis of Lacustrine Carbonates in Volcanic Settings: The Role of Magmatic CO₂ (Lake Dziani Dzaha, Mayotte, Indian Ocean) ACS Earth and Space Chemistry 4 (3), 363-378

-       Sara Laporte, Fabio Pietrucci, François Guyot, A Marco Saitta (2020) Formic Acid Synthesis in a Water–Mineral System: Major Role of the Interface J. Phys. Chem. C, 124, 9, 5125–5131 ACS Earth Space Chem. 4, 3, 363–378

-       Clément Berny, Raphael Le Fèvre, François Guyot, Karine Blondeau, Christine Guizonne, Emilie Rousseau, Nicolas Bayan, Edouard Alphandéry (2020) A method for producing highly pure magnetosomes in large quantity for medical applications using Magnetospirillum gryphiswaldense MSR-1 magnetotactic bacteria amplified in minimal growth media. Frontiers in Bioengineering and Biotechnology 8, 16, 1-13

-       Eglantine Boulard, François Guyot, Guillaume Fiquet (2020) High‐Pressure Transformations and Stability of Ferromagnesite in the Earth's Mantle Carbon in Earth's Interior 105-113 John Wiley & Sons, Inc. https://doi.org/10.1002/9781119508229.ch11

-       Jasmine S Berg, Arnaud Duverger, Laure Cordier, Christel Laberty-Robert, François Guyot, Jennyfer Miot (2020) Rapid pyritization in the presence of a sulfur/sulfate-reducing bacterial consortium. Sci Rep 10, 8264 (2020). https://doi.org/10.1038/s41598-020-64990-6

-   Thaïs Couasnon, Damien Alloyeau, Bénédicte Ménez, François Guyot, Jean-Marc Ghigo, Alexandre Gélabert (2020) In situ monitoring of exopolymer-dependent Mn mineralization on bacterial surfaces Science Advances 6, 27

- Silvia Boccato, Raffaella Torchio, Simone Anzellini, Eglantine Boulard, François Guyot, Tetsuo Irifune, Marion Harmand, Innokenty Kantor, Francesca Miozzi, Paraskevas Parisiades, Angelika D Rosa, Daniele Antonangeli, Guillaume Morard (2020) Melting properties by X-ray absorption spectroscopy: common signatures in binary Fe–C, Fe–O, Fe–S and Fe–Si systems Scientific Reports 10,1, 1-13

 - Laura Galezowski, Nadir Recham, Dominique Larcher, Jennyfer Miot, Fériel Skouri-Panet, François Guyot (2020). Microbially Induced Mineralization of Layered Mn Oxides Electroactive in Li Batteries Frontiers in microbiology 11, 2031

 - Arnaud Duverger, Jasmine S Berg, Vincent Busigny, François Guyot, Sylvain Bernard, Jennyfer Miot (2020) Mechanisms of pyrite formation promoted by sulfate-reducing bacteria in pure culture Frontiers in Earth Science 8, 457

- Mary Aubry, Wei-An Wang, Yohan Guyodo, Eugénia Delacou, Jean-Michel Guigner, Olivier Espeli, Alice Lebreton, François Guyot, Zoher Gueroui. (2020) Engineering E. coli for Magnetic Control and the Spatial Localization of Functions ACS Synthetic Biology, 9, 11, 3030-3041

- Caroline L Monteil, Karim Benzerara, Nicolas Menguy, Cécile C Bidaud, Emmanuel Michot-Achdjian, Romain Bolzoni, François P Mathon, Margot Coutaud, Béatrice Alonso, Camille Garau, Didier Jézéquel, Eric Viollier, Nicolas Ginet, Magali Floriani, Sufal Swaraj, Martin Sachse, Vincent Busigny, Elodie Duprat, François Guyot, Christopher T Lefevre.(2021) Intracellular amorphous Ca-carbonate and magnetite biomineralization by a magnetotactic bacterium affiliated to the Alphaproteobacteria The ISME Journal 15, 1-18

- Antonin Affholder, François Guyot, Boris Sauterey, Régis Ferrière and Stéphane Mazevet (2021) Bayesian analysis of Enceladus’ plume data to assess methanogenesis. Nature Astronomy, 2021/6/7, 1-10

 - Caroline Avril, Valérie Malavergne, Eric D Van Hullebusch, Fabrice Brunet, Stephan Borensztajn, Jérôme Labanowski, Louis Hennet, François Guyot (2021) Aqueous alteration and bioalteration of a synthetic enstatite chondrite Meteoritics & Planetary Science 56, 3, 601-618

Research Interests

My main research interest is to better understand the behaviour, history and evolution of critical natural systems at the local environmental and global Earth scales, including their biological components by modeling their advanced thermodynamics. Determining these thermodynamics necessitates the knowledge of experimental analogs of these systems at the submicron scale through the structure of complex interfaces between different media (e.g.  biological and mineral), compositional gradients or deciphering phase assemblages in tiny experimental setups (e.g.  micro-reactors). For this I systematically apply visualization of these analog microsystems by electron microscopies and spectroscopic techniques.

I am currently applying these approaches to a main research project :

Life of Hyperthermophilic Microoganisms at extreme temperatures in higly mineralized environments. Implications for geochemical cycles, for search of life limits on Earth and in other planets and for discussions about the conditions of emergence of life 

In parallel, I am participating to several research projects with similar objectives and using the same scientific skills in the fields of

• High-pressure mineralogy of planetary interiors,
• Thermodynamics of  biomineralization by prokaryotic microorganisms 
• Environmental biomineralogy with special emphasis on hydrogen production and consumption by microorganisms,
• Medical biomineralogy with special emphasis on interactions between minerals and macro-organisms.

NEWS July 2021

Recently published 3 hopefully important papers :

Antonin Affholder, François Guyot, Boris Sauterey, Régis Ferrière and Stéphane Mazevet (2021) Bayesian analysis of Enceladus’ plume data to assess methanogenesis. Nature Astronomy, 2021/6/7, 1-10

What I find important in this article, beyond the quantitative estimation of the likelihood of the presence of life with metabolic methanogenesis in the interior of Enceladus, is the bio-ecological thermo-kinetic model allowing to discuss the living phenomenon at the same level as various abiotic physico-chemical processes at work in the interior of the small planet. Special thanks to Antonin Affholder

Caroline Avril, Valérie Malavergne, Eric D Van Hullebusch, Fabrice Brunet, Stephan Borensztajn, Jérôme Labanowski, Louis Hennet, François Guyot (2021) Aqueous alteration and bioalteration of a synthetic enstatite chondrite Meteoritics & Planetary Science 56, 3, 601-618

This article is particularly interesting because, among other things, it is one of the few to demonstrate the development of microorganisms on a meteorite substrate. However, sources of carbon, nitrogen and phosphorus had to be added but I hope to demonstrate soon that biological development is possible using those three chemical elements present in natural meteorite substrates

Laura Galezowski, Nadir Recham, Dominique Larcher, Jennyfer Miot, Fériel Skouri-Panet, François Guyot (2020). Microbially Induced Mineralization of Layered Mn Oxides Electroactive in Li Batteries Frontiers in microbiology 11, 2031

 I appreciate this work very much because it shows that materials synthesized by microorganisms can be functional and open up relevant applications in the context of the energy transition. Here, the post-synthesis thermal treatment is practically non-existent. The hypothesis that I would like to test now is that there might be an additional interest in using hyperthermophilic microorganisms capable of working at very high temperatures (> 100°C) for this type of synthesis, thus leading to bio-hydrothermal processes.

BIOMIN

List of Members / Research Projects / Publications