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Filtres: Auteur est Brown, G. E.  [Clear All Filters]
2010
Morin, G., G. Ona-Nguema, Y. Wang, F. Juillot, N. Menguy, G. Calas, and G. E. Brown. "Arsenic sequestration and oxidation at the surface of Fe(II)-containing iron (hydr) oxide nanoparticles." Geochimica Et Cosmochimica Acta 74, no. 12 (2010): A726.
Wang, Y. H., G. Morin, G. Ona-Nguema, F. Juillot, Francois Guyot, G. Calas, and G. E. Brown. "Evidence for Different Surface Speciation of Arsenite and Arsenate on Green Rust: An EXAFS and XANES Study." Environmental Science & Technology 44, no. 1 (2010): 109-115.
Hohmann, C., G. Morin, G. E. Brown, M. Obst, K. Benzerara, and A. Kappler. "Molecular mechanisms of As-binding to biogenic iron(III) (hydr)oxides precipitated by the nitrate-reducing iron(II)-oxidizer Acidovorax sp strain BoFeN1." Geochimica Et Cosmochimica Acta 74, no. 12 (2010): A409.
Bernard, S., K. Benzerara, O. Beyssac, and G. E. Brown. "Multiscale characterization of pyritized plant tissues in blueschist facies metamorphic rocks." Geochimica Et Cosmochimica Acta 74, no. 17 (2010): 5054-5068.
Ona-Nguema, G., G. Morin, Y. H. Wang, A. L. Foster, F. Juillot, G. Calas, and G. E. Brown. "XANES Evidence for Rapid Arsenic(III) Oxidation at Magnetite and Ferrihydrite Surfaces by Dissolved O-2 via Fe2+-Mediated Reactions." Environmental Science & Technology 44, no. 14 (2010): 5416-5422.
Bernard, S., O. Beyssac, K. Benzerara, N. Findling, G. Tzvetkov, and G. E. Brown. "XANES, Raman and XRD study of anthracene-based cokes and saccharose-based chars submitted to high-temperature pyrolysis." Carbon 48, no. 9 (2010): 2506-2516.
2009
Morin, G., G. Ona-Nguema, Y. Wang, F. Juillot, N. Menguy, G. Calas, and G. E. Brown. "Arsenic(III) polymerization upon sorption on iron(II,III)-(hydr)oxides surfaces: Implications for arsenic mobility under reducing conditions." Geochimica Et Cosmochimica Acta 73, no. 13 (2009): A906.
Ona-Nguema, G., G. Morin, Y. H. Wang, N. Menguy, F. Juillot, L. Olivi, G. Aquilanti, M. Abdelmoula, C. Ruby, J. R. Bargar et al. "Arsenite sequestration at the surface of nano-Fe(OH)(2), ferrous-carbonate hydroxide, and green-rust after bioreduction of arsenic-sorbed lepidocrocite by Shewanella putrefaciens." Geochimica Et Cosmochimica Acta 73, no. 5 (2009): 1359-1381.
Ona-Nguema, G., G. Morin, Y. Wang, F. Juillot, M. Abdelmoula, C. Ruby, Francois Guyot, G. Calas, and G. E. Brown. "Arsenite sequestration by Fe(II)-containing minerals after microbial dissimilatory reduction of arsenic-sorbed lepidocrocite." Geochimica Et Cosmochimica Acta 73, no. 13 (2009): A973.
Morin, G., Y. H. Wang, G. Ona-Nguema, F. Juillot, G. Calas, N. Menguy, E. Aubry, J. R. Bargar, and G. E. Brown. "EXAFS and HRTEM Evidence for As(III)-Containing Surface Precipitates on Nanocrystalline Magnetite: Implications for As Sequestration." Langmuir 25, no. 16 (2009): 9119-9128.
Miot, J., K. Benzerara, G. Morin, A. Kappler, S. Bernard, M. Obst, C. Ferard, F. Skouri-Panet, J. M. Guigner, N. Posth et al. "Iron biomineralization by anaerobic neutrophilic iron-oxidizing bacteria." Geochimica Et Cosmochimica Acta 73, no. 3 (2009): 696-711.
Miot, J., K. Benzerara, G. Morin, A. Kappler, M. Obst, G. E. Brown, and Francois Guyot. "Iron biomineralization by neutrophilic nitrate-reducing iron-oxidizing bacteria." Geochimica Et Cosmochimica Acta 73, no. 13 (2009): A884.
Lepot, K., K. Benzerara, N. Rividi, M. Cotte, G. E. Brown, and Pascal Philippot. "Organic matter heterogeneities in 2.72 Ga stromatolites: Alteration versus preservation by sulfur incorporation." Geochimica Et Cosmochimica Acta 73, no. 21 (2009): 6579-6599.
Miot, J., G. Morin, F. Skouri-Panet, C. Ferard, A. Poitevin, E. Aubry, G. Ona-Nguema, F. Juillot, Francois Guyot, and G. E. Brown. "Speciation of Arsenic in Euglena gracilis Cells Exposed to As(V)." Environmental Science & Technology 43, no. 9 (2009): 3315-3321.
Miot, J., G. Morin, F. Skouri-Panet, C. Ferard, A. Poitevin, E. Aubry, G. Ona-Nguema, F. Juillot, Francois Guyot, and G. E. Brown. "Speciation of Arsenic in Euglena gracilis Cells Exposed to As(V)." Environmental Science & Technology 43, no. 9 (2009): 3315-3321.
Benzerara, K., A. Meibom, P. Lopez-Garcia, J. Kazmierczak, and G. E. Brown. "Study of mineral-microbe assemblages down to the nm-scale in carbonate microbialites." Geochimica Et Cosmochimica Acta 73, no. 13 (2009): A110.
Bernard, S., K. Benzerara, O. Beyssac, G. E. Brown, L. G. Stamm, and P. Duringer. "Ultrastructural and chemical study of modern and fossil sporoderms by Scanning Transmission X-ray Microscopy (STXM)." Review of Palaeobotany and Palynology 156, no. 1-2 (2009): 248-261.
Fandeur, D., F. Juillot, G. Morin, L. Olivi, A. Cognigni, S. M. Webb, J. P. Ambrosi, E. Fritsch, Francois Guyot, and G. E. Brown. "XANES Evidence for Oxidation of Cr(III)) to Cr(VI) by Mn-Oxides in a Lateritic Regolith Developed on Serpentinized Ultramafic Rocks of New Caledonia." Environmental Science & Technology 43, no. 19 (2009): 7384-7390.
Fandeur, D., F. Juillot, G. Morin, S. Webb, L. Olivi, J. L. Hazemann, G. E. Brown, and E. Fritsch. "XANES investigation of the redox behavior of Cr in a tropical context." Geochimica Et Cosmochimica Acta 73, no. 13 (2009): A352.
2008
Wang, Y. H., G. Morin, G. Ona-Nguema, N. Menguy, F. Juillot, E. Aubry, Francois Guyot, G. Calas, and G. E. Brown. "Arsenite sorption at the magnetite-water interface during aqueous precipitation of magnetite: EXAFS evidence for a new arsenite surface complex." Geochimica Et Cosmochimica Acta 72, no. 11 (2008): 2573-2586.
Cances, B., F. Juillot, G. Morin, V. Laperche, D. Polya, D. J. Vaughan, J. L. Hazemann, O. Proux, G. E. Brown, and G. Calas. "Changes in arsenic speciation through a contaminated soil profile: A XAS based study." Science of the Total Environment 397, no. 1-3 (2008): 178-189.
Fandeur, D., F. Juillot, E. Fritsch, L. Olivi, G. Morin, G. E. Brown, S. Webb, and J. P. Ambrosi. "Cr behavior after oxidation by Mn-oxides along a weathering profile in New Caledonia." Geochimica Et Cosmochimica Acta 72, no. 12 (2008): A254.
Morin, G., G. Ona-Nguema, Y. H. Wang, N. Menguy, F. Juillot, O. Proux, Francois Guyot, G. Calas, and G. E. Brown. "Extended X-ray absorption fine structure analysis of arsenite and arsenate adsorption on maghemite." Environmental Science & Technology 42, no. 7 (2008): 2361-2366.
Wang, Y., Alexandre Gelabert, J. Ha, G. Ona-Nguema, J. Gescher, C. Cordova-Ardy, J. R. Bargar, J. Rogers, P. J. Eng, S. K. Ghose et al. "Impact of S-oneidensis MR-1 biofilm coatings on trace element partitioning at metal-oxide/water interfaces: A long period XSW-FY study." Geochimica Et Cosmochimica Acta 72, no. 12 (2008): A1003.
Lepot, K., K. Benzerara, G. E. Brown, and Pascal Philippot. "Microbially influenced formation of 2,724-million-year-old stromatolites." Nature Geoscience 1, no. 2 (2008): 118-121.
Benzerara, K., G. Morin, T. H. Yoon, J. Miot, T. Tyliszczak, C. Casiot, O. Bruneel, F. Farges, and G. E. Brown. "Nanoscale study of As biomineralization in an acid mine drainage system." Geochimica Et Cosmochimica Acta 72, no. 16 (2008): 3949-3963.
Gelabert, Alexandre, Y. G. Wang, J. Y. Ha, G. Ona-Nguema, A. M. Spormann, J. R. Bargar, J. Rogers, P. Eng, S. Ghose, and G. E. Brown. "Parameters controlling metal adsorption at the biofilm/mineral interface: Evidence for a diffusion limited process and comparison with thermodynamic modeling." Geochimica Et Cosmochimica Acta 72, no. 12 (2008): A301.
Bernard, S., K. Benzerara, O. Beyssac, and G. E. Brown. "Scanning fransmission X-ray microscopy analysis of metamorphic biogenic carbon." Geochimica Et Cosmochimica Acta 72, no. 12 (2008): A78.
Ha, J. Y., Alexandre Gelabert, Y. G. Wang, A. M. Spormann, and G. E. Brown. "Study of Proton, Pb+2 and Zn+2 adsorption onto Shewanella oneidensis MR-1 strain and a mutant Strain (Delta EPS): Spectroscopic observation and modeling approach." Geochimica Et Cosmochimica Acta 72, no. 12 (2008): A339.
Benzerara, K., S. Bernard, K. Lepot, J. Miot, and G. E. Brown. "STXM-based study of microbial fossils in recent and ancient rocks." Geochimica Et Cosmochimica Acta 72, no. 12 (2008): A75.
Brown, G. E., Alexandre Gelabert, Y. Wang, C. Cismasu, J. Ha, G. Ona-Nguema, K. Benzerara, G. Morin, Y. Yang, F. Juillot et al. "Synchrotron X-ray studies of bacteria-mineral-metal ion interactions." Geochimica Et Cosmochimica Acta 72, no. 12 (2008): A116.
Brown, G. E., Y. Wang, Alexandre Gelabert, J. Ha, C. Cismasu, G. Ona-Nguema, K. Benzerara, J. Miot, N. Menguy, G. Morin et al. "Synchrotron X-ray studies of heavy metal mineral-microbe interactions." Mineralogical Magazine 72, no. 1 (2008): 169-173.
Miot, J., G. Morin, F. Skouri-Panet, C. Ferard, E. Aubry, J. Briand, Y. Wang, G. Ona-Nguema, Francois Guyot, and G. E. Brown. "XAS study of arsenic coordination in Euglena gracilis exposed to arsenite." Environmental Science & Technology 42, no. 14 (2008): 5342-5347.
Cismasu, C., G. Ona-Nguema, D. Bonnin, N. Menguy, and G. E. Brown. "Zinc and Arsenic immobilization and magnetite formation upon reduction of maghemite by Shewanella putrefaciens ATCC 8071." Geochimica Et Cosmochimica Acta 72, no. 12 (2008): A165.
2007
Benzerara, K., N. Menguy, N. R. Banerjee, T. Tyliszczak, G. E. Brown, and Francois Guyot. "Alteration of submarine basaltic glass from the Ontong Java Plateau: A STXM and TEM study." Earth and Planetary Science Letters 260, no. 1-2 (2007): 187-200.
Ona-Nguema, G., G. Morin, Y. Wang, F. Juillot, Francois Guyot, G. Calas, and G. E. Brown. "As(V)-bearing lepidocrocite and green rust reduction by Shewanella putrefaciens: Evidence for Fe(II) carbonate hydroxide formation." Geochimica Et Cosmochimica Acta 71, no. 15 (2007): A740.
Juillot, F., G. Morin, J. L. Hazemann, O. Proux, S. Belin, V. Briois, G. E. Brown, and G. Calas. "EXAFS signatures of structural Zn at trace levels in layered minerals." X-Ray Absorption Fine Structure-Xafs13 882 (2007): 247-249.
Bernard, S., K. Benzerara, O. Beyssac, N. Menguy, Francois Guyot, G. E. Brown, and B. Goffe. "Exceptional preservation of fossil plant spores in high-pressure metamorphic rocks." Earth and Planetary Science Letters 262 (2007): 257-272.
Morin, G., F. Juillot, J. Miot, Y. Wang, C. Casiot, B. Cances, O. Proux, G. Calas, and G. E. Brown. "In-situ arsenic speciation in Earth surface environments: Importance of iron oxides." Geochimica Et Cosmochimica Acta 71, no. 15 (2007): A688.
Wang, Y. H., G. Morin, G. Ona-Nguema, N. Menguy, Francois Guyot, J. L. Hazemann, G. Calas, G. E. Brown, and Vc. "Mechanisms of arsenic scavenging by iron (hydr)oxides in anoxic environments." Geochimica Et Cosmochimica Acta 71, no. 15 (2007): A1089.
Benzerara, K., G. Morin, T. H. Yoon, J. Miot, C. Casiot, F. Farges, G. E. Brown, and Vc. "Microbial biomineralization and redox transformation of As and Fe in an acid mine drainage." Geochimica Et Cosmochimica Acta 71, no. 15 (2007): A81.
Juillot, F., G. Morin, Marc F. Benedetti, J. L. Hazemann, O. Proux, S. Bellin, V. Briois, G. E. Brown, G. Calas, and Vc. "Speciation and long-term sequestering of Zn in a naturally enriched soil." Geochimica Et Cosmochimica Acta 71, no. 15 (2007): A453.
Miot, J., K. Benzerara, N. R. Banerjee, N. Menguy, T. Tyliszczak, G. E. Brown, Francois Guyot, and Vc. "Study at the nanoscale of the alteration of submarine basaltic glass from the Ontong Java Plateau." Geochimica Et Cosmochimica Acta 71, no. 15 (2007): A671.
2006
Juillot, F., G. Morin, P. Ildefonse, G. Calas, and G. E. Brown. "EXAFS signature of structural Zn at trace levels in natural and synthetic trioctahedral 2 : 1 phyllosilicates." American Mineralogist 91, no. 8-9 (2006): 1432-1441.
Benzerara, K., N. Menguy, K. Lepot, and G. E. Brown. "GEOC 127-Study of bioweathering and nano-biominerals at the nanoscale in natural samples." Abstracts of Papers of the American Chemical Society 232 (2006).
Yoon, T. H., K. Benzerara, S. Ahn, R. G. Luthy, T. Tyliszczak, and G. E. Brown. "Nanometer-scale chemical heterogeneities of black carbon materials and their impacts on PCB sorption properties: Soft X-ray spectromicroscopy study." Environmental Science and Technology 40, no. 19 (2006): 5923-5929.
Benzerara, K., N. Menguy, Lopez P. Garcia, T. H. Yoon, J. Kazmierczak, T. Tyliszczak, Francois Guyot, and G. E. Brown. "Nanoscale detection of organic signatures in carbonate microbialites." Proceedings of the National Academy of Sciences of the United States of America 103, no. 25 (2006): 9440-9445.
Brown, G. E., G. Calas, and R. J. Hemley. "Scientific advances made possible by user facilities." Elements 2, no. 1 (2006): 23-30.
Benzerara, K., V. M. Miller, G. Barell, V. Kumar, J. Miot, G. E. Brown, and J. C. Lieske. "Search for microbial signatures within human and microbial calcifications using soft X-ray spectromicroscopy." Journal of Investigative Medicine 54, no. 7 (2006): 367-379.
Benzerara, K., V. M. Miller, J. R. Uhl, F. R. Cockerill, G. Farell-Baril, T. Tyliszczak, G. E. Brown, and J. G. Lieske. "Spectromicroscopy of microbial signatures within human calcifications." Faseb Journal 20, no. 4 (2006): A101.

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