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Rizlan Bernier-Latmani

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Publications associées (126)

Products of in situ corrosion of depleted uranium ammunition in Bosnia and Herzegovina soils

Rizlan Bernier-Latmani, Barbora Bártová, Yuheng Wang, Konstantin von Gunten

Hundreds of tons of depleted uranium (DU) ammunition were used in previous armed conflicts in Iraq, Bosnia and Herzegovina, and Serbia/Kosovo. The majority (>90%) of DU penetrators miss their target and, if left in the environment, corrode in these postcon ...

Amer Chemical Soc2016

Uranium Isotopes Fingerprint Biotic Reduction

Rizlan Bernier-Latmani, Malgorzata Alicja Stylo, Yuheng Wang

Knowledge of paleo-redox conditions in the Earth's history provides a window into events that shaped the evolution of life on our planet. The role of microbial activity in paleo-redox processes remains unexplored due to the inability to discriminate biotic ...

Natl Acad Sciences2015

Long-term in-situ oxidation of biogenic uraninite in an alluvial aquifer: impact of dissolved oxygen and calcium

Elena Suvorova Buffat, Rizlan Bernier-Latmani, Harish Veeramani, Daniel Scott Alessi

Oxidative dissolution controls uranium release to (sub)oxic pore waters from biogenic uraninite produced by natural or engineered processes, such as bioremediation Laboratory studies show that uraninite dissolution is profoundly influenced by dissolved oxy ...

Amer Chemical Soc2015

Environmental Mineralogy: New challenges, new materials

Rizlan Bernier-Latmani

The close links between mineralogy and materials science are leading to major developments in how society deals more effectively with energy and environmental challenges. The fast expanding field of "environmental mineralogy" helps mitigate major environme ...

Mineralogical Soc Amer2015

Mechanism of uranium reduction and immobilization in Desulfovibrio vulgaris biofilms

Rizlan Bernier-Latmani, Malgorzata Alicja Stylo

The prevalent formation of noncrystalline U(IV) species in the subsurface and their enhanced susceptibility to reoxidation and remobilization, as compared to crystalline uraninite, raise concerns about the long-term sustainability of the bioremediation of ...

Amer Chemical Soc2015

Investigation of sporulation in the Desulfotomaculum genus: a genomic comparison with the genera Bacillus and Clostridium

Rizlan Bernier-Latmani, Elena Cristina Dalla Vecchia

The genus Desulfotomaculum, belonging to the Firmicutes, comprises strictly anaerobic and endospore-forming bacteria capable of dissimilatory sulfate reduction. These microorganisms are metabolically versatile and are widely distributed in the environment. ...

Blackwell Publishing2014

Influence of redox regime and time on the in situ bioremediation of chromium in natural sediments

Rizlan Bernier-Latmani, Justine Marie Gay des Combes, Daniel Scott Alessi, Yuheng Wang, Leia Soraya Véronique Falquet

Amer Chemical Soc2014

Fe(III) reduction during pyruvate fermentation by Desulfotomaculum reducens strain MI-1

Elena Suvorova Buffat, Julien Maillard, Rizlan Bernier-Latmani, Elena Cristina Dalla Vecchia

Desulfotomaculum reducens MI-1 is a Gram-positive, sulfate-reducing bacterium also capable of reducing several metals, among which is Fe(III). Very limited knowledge is available on the potential mechanism(s) of metal reduction among Gram-positive bacteria ...

Wiley-Blackwell2014

Membrane vesicles as a novel strategy for shedding encrusted cell surfaces

Rizlan Bernier-Latmani, Paul Pao-Yun Shao

Surface encrustation by minerals, which impedes cellular metabolism, is a potential hazard for microbes. The reduction of U(VI) to U(IV) by Shewanella oneidensis strain MR-1 leads to the precipitation of the mineral uraninite, as well as a non-crystalline ...

Mdpi Ag2014

Speciation and reactivity of uranium products formed during in situ bioremediation in a shallow alluvial aquifer

Elena Suvorova Buffat, Rizlan Bernier-Latmani, Daniel Scott Alessi

In this study, we report the results of in situ U(VI) bioreduction experiments at the Integrated Field Research Challenge site in Rifle, Colorado, USA. Columns filled with sediments were deployed into a groundwater well at the site and, after a period of c ...

Amer Chemical Soc2014

Characterization of the surfaceome of the metal-reducing bacterium Desulfotomaculum reducens

Elena Suvorova Buffat, Diego Chiappe, Rizlan Bernier-Latmani, Elena Cristina Dalla Vecchia, Romain Hamelin, Paul Pao-Yun Shao

Desulfotomaculum reducens strain MI-1 is a Gram-positive, sulfate-reducing bacterium also capable of reducing Fe(III). Metal reduction in Gram-positive bacteria is poorly understood. Here, we investigated Fe(III) reduction with lactate, a non-fermentable s ...

Frontiers Media SA2014

Combined scanning transmission X-ray and electron microscopy for the characterization of bacterial endospores

Elena Suvorova Buffat, Rizlan Bernier-Latmani, Paul Pao-Yun Shao, Imrich Barak, Jan Jamroskovic

Endospores (also referred to as bacterial spores) are bacterial structures formed by several bacterial species of the phylum Firmicutes. Spores form as a response to environmental stress. These structures exhibit remarkable resistance to harsh environmenta ...

Wiley-Blackwell2014

The product of microbial uranium reduction includes multiple species with U(IV)-phosphate coordination

Rizlan Bernier-Latmani, Daniel Scott Alessi

Until recently, the reduction of U(VI) to U(IV) during bioremediation was assumed to produce solely the sparingly soluble mineral uraninite, UO2(s). However, results from several laboratories reveal other species of U(IV) characterized by the absence of an ...

Elsevier2014

Silver release from silver nanoparticles in natural waters

Rizlan Bernier-Latmani, Jan Dobias

Silver nanoparticles (AgNPs) are used increasingly in consumer products for their antimicrobial properties. This increased use raises ecological concern because of the release of AgNPs into the environment. Once released, zero-valent silver may be oxidized ...

American Chemical Society2013

Genome analysis of Desulfotomaculum kuznetsovii reveals a physiological similarity with Pelotomaculum thermopropionicum

Rizlan Bernier-Latmani

Desulfotomaculum kuznetsovii is a moderately thermophilic member of the polyphyletic spore-forming genus Desulfotomaculum in the family Peptococcaceae. This species is of interest because it originates from deep subsurface thermal mineral water at a depth ...

Genomic Stand Consort2013

Uranium redox transition pathways in acetate-amended sediments

Elena Suvorova Buffat, Rizlan Bernier-Latmani, Daniel Scott Alessi, Malgorzata Alicja Stylo

Redox transitions of uranium [from U(VI) to U(IV)] in low-temperature sediments govern the mobility of uranium in the environment and the accumulation of uranium in ore bodies, and inform our understanding of Earth's geochemical history. The molecular-scal ...

National Academy of Sciences2013

Beam-induced oxidation of monomeric U(IV) species

Camelia Borca, Rizlan Bernier-Latmani, Daniel Scott Alessi, Benjamin Uster

Uranium L-III-edge X-ray absorption spectroscopy is often used to probe the oxidation state and coordination of uranium in environmental samples, and micrometre-sized beams can be used to spatially map the distribution of uranium relative to other elements ...

International Union of Crystallography2013

Biogeochemical controls on the product of microbial U(VI) reduction

Rizlan Bernier-Latmani, Daniel Scott Alessi, Paul Pao-Yun Shao, Malgorzata Alicja Stylo

Biologically mediated immobilization of radio-nuclides in the subsurface is a promising strategy for the remediation of uranium-contaminated sites. During this process, soluble U(VI) is reduced by indigenous microorganisms to sparingly soluble U(TV). The c ...

Amer Chemical Soc2013

Mobile uranium(IV)-bearing colloids in a mining-impacted wetland

Elena Suvorova Buffat, Rizlan Bernier-Latmani, Manon Frutschi, Yuheng Wang

Tetravalent uranium is commonly assumed to form insoluble species, resulting in the immobilization of uranium under reducing conditions. Here we present the first report of mobile U(IV)-bearing colloids in the environment, bringing into question this commo ...

Nature Research2013

Use of chemical extractions to evaluate the reactivity of U(IV) species

Rizlan Bernier-Latmani, Daniel Scott Alessi

Amer Chemical Soc2013

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