Faculty Directory
Jean-François Gaillard

Professor of Civil and Environmental Engineering and (by courtesy) Earth and Planetary Sciences

Contact

2145 Sheridan Road
Tech A324
Evanston, IL 60208-3109

847-467-1376Email Jean-François Gaillard

Website

Gaillard Research


Departments

Civil and Environmental Engineering


Download CV

Education

D.Sc. Docteur Ès Sciences Physiques - Géochimie, University Denis Diderot (Paris 7) and Paris Institute of Earth Physics (I.P.G.P.), Paris, France

Dr. Docteur de 3ème cycle en Sciences de l'Eau, University Pierre et Marie Curie, Paris, France

M.S. Diplôme d'Etudes Approfondies en Sciences de l'Eau, University Pierre et Marie Curie, Paris, France

B.S. Maîtrise de Sciences et Techniques Air et Eau, University of Savoie, Chambéry, France


Research Interests

The primary focus of the research performed in my group is to understand the biogeochemical processes that affect the fate of metals in aquatic systems. A special emphasis is to elucidate how the chemical speciation of metals controls their biouptake/bioavailability focusing on microbial species, since microorganisms constitute the foundation of any ecological system. We are conducting field studies, laboratory experiments, and using modeling approaches based on advanced analytical, microscopic, and spectroscopic methods. Our most recent activities have been centered on the chemical fate of As, Ni, and Hg in aquatic environments as well as on the environmental impacts of nano-structured materials commonly used.

Keywords: Environmental Chemistry, Metal Speciation, Biogeochemical Cycling of Metals and Metalloids, x-ray absoprtion spectroscopy


Selected Publications

    1. Thomas S.A, Catty P., Hazemann J.-L., Michaud-Soret I., Gaillard J.-F. (2019) The role of cysteine and sulfide in the interplay between microbial Hg(II) uptake and sulfur metabolism. Metallomics, 11, 1219-1229.

    2. Myers C.P., Pappas I., Makwana E., Begum-Gafur R., Utgikar N., Alsina M.A., Fitzgerald M., Trivedi H.M., Gaillard J.-F., Masters J.G., Sullivan R.J. (2019) Solving the Problem With Stannous Fluoride: Formulation, Stabilization, and Antimicrobial Action. Journal of the American Dental Association, 150,  4 suppl, S5-S13.

    3. Wilke C.M., Petersen C., Alsina  M.A., Gaillard J.-F., Gray K.A. (2019) Photochemical interactions between n-Ag2S and n-TiO2 amplify their bacterial stress response. Environmental Science: Nano, 6, 115-126.

    4.  Xie M., Alsina M.A., Yuen J., Packman A.I., Gaillard J.-F. (2019) Effects of resuspension on the mobility and chemical speciation of zinc in contaminated sediments. Journal of Hazardous Materials, 364: 300-308

    5. Thomas S.A., Rodby K. E., Roth E.W., Wu J., Gaillard J.-F. (2018) Spectroscopic and Microscopic Evidence of Biomediated HgS Species Formation from Hg(II)-Cysteine Complexes: Implications for Hg(II) Bioavailability. Environmental Science & Technology, 52: 10030-10039.

    6. Alsina M. A., Gaillard J.-F. (2018) Structural characterization of metal complexes in aqueous solutions: A XAS study of stannous uoride. Physical Chemistry Chemical Physics, 20,12727-12735.

    7. Wilke C.M., Wunderlich B., Gaillard J.-F., Gray K.A. (2018) Synergistic Bacterial Stress Results from Exposure to Nano-Ag and Nano-TiO2  Mixtures under Light in Environmental Media. Environmental Science & Technology, 52(5), 3185-3194.

    8. Wilke C.M., Gaillard J.-F., Gray K.A. (2018) The critical role of light in moderating microbial stress due to mixtures of engineered nanomaterials. Environmental Science: Nano, 5, 96-102.

    9. Xie M., Wang N., Gaillard J.-F., Packman A.I. (2018) Interplay between Flow and Bioturbation Enhances Metal Eux from Low-Permeability Sediments. Journal of Hazardous Materials, 341, 304-312.

    10. Thomas, S.A., Gaillard J.-F. (2017) Cysteine Addition Promotes Sulfide Production and 4-Fold Hg(II)-S Coordination in Actively Metabolizing Escherichia coli. Environmental Science & Technology, 51, 4642-4651.

    11. Alsina, M. A., Gaillard J.-F., Keten S. (2016) Conformational changes during the permeation of Na+ through a modified cyclic peptide nanotube promote energy landscape roughness. Physical Chemistry Chemical Physics, 18, 31698-31710.

    12. Wilke C.M., Tong T., Gaillard J.-F., Gray K.A. (2016) Attenuation of Microbial Stress due to n-Ag and n-TiO2 Interactions under Dark Conditions. Environmental Science & Technology, 50, 11302-11310.

    13. Wang N., Tong T., Xie M., Gaillard J.-F. (2016) Lifetime and Dissolution Kinetics of Zinc Oxide Nanoparticles in Aqueous Media. Nanotechnology, (invited contribution), 32, 324001.

    14. Thomas S.A., Ma Q., Gaillard J.-F. (2016) Probing changes in Hg(II) coordination during its bacterial uptake. Journal of Physics: Conference Series, 712(1), 012078.

    15. Xie M., Wang N., Gaillard J.-F., Packman A.I. (2016) Hydrodynamic Forcing Mobilizes Cu in Low-Permeability Estuarine Sediments. Environmental Science & Technology, 50 (9), 4615-4623.

    16. Binh C.T.T., Adams E., Vigen E., Tong T., Alsina, M.A., Gaillard J.-F., Gray K.A., Peterson C.G., Kelly J.J. (2016) Chronic addition of a common engineered nanomaterial alters biomass, activity and composition of stream biofilm communities. Environmental Science: Nano, 3(3), 619-630.

    17. Ozaki, A., Adams E., Binh C.T.T., Tong T., Gaillard J.-F., Gray K.A., Kelly J.J. (2016) One-time addition of nano-TiO2 triggers short-term responses in benthic bacterial communities in artificial streams. Microbial Ecology, 71(2), 266-275.