| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Lloyd, Jonathan R.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (27/27 displayed)
- 2023An investigation into the role of c-type cytochromes and extracellular flavins in the bioreduction of uranyl(VI) by <i>Shewanella oneidensis</i> using fluorescence spectroscopy and microscopycitations
- 2023Anaerobic biodegradation of citric acid in the presence of Ni and U at alkaline pH; impact on metal fate and speciationcitations
- 2023Copper bioreduction and nanoparticle synthesis by an enrichment culture from a former copper minecitations
- 2020Biomineralization of Cu2S nanoparticles by Geobacter sulfurreducenscitations
- 2020Enhanced microbial degradation of irradiated cellulose under hyperalkaline conditionscitations
- 2019Bioelectrochemical treatment and recovery of copper from distillery waste effluents using power and voltage control strategiescitations
- 2018Combined chemical and microbiological degradation of tetrachloroethene during the application of Carbo-Iron at a contaminated field sitecitations
- 2018Response of Bentonite Microbial Communities to Stresses Relevant to Geodisposal of Radioactive Wastecitations
- 2018A Novel Adaptation Mechanism Underpinning Algal Colonization of a Nuclear Fuel Storage Pondcitations
- 2018Biosynthesis and Characterization of Copper Nanoparticles Using Shewanella oneidensis: Application for Click Chemistrycitations
- 2016Bacterial Diversity in the Hyperalkaline Allas Springs (Cyprus), a Natural Analogue for Cementitious Radioactive Waste Repositorycitations
- 2016Imaging the hydrated microbe-metal interface using nanoscale spectrum imagingcitations
- 2016Biogenic methane in shale gas and coal bed methanecitations
- 2015Microbial degradation of cellulosic material under intermediate-level waste simulated conditionscitations
- 2014The Impact of γ Radiation on the Bioavailability of Fe(III) Minerals for Microbial Respirationcitations
- 2014Biosynthesis of zinc substituted magnetite nanoparticles with enhanced magnetic propertiescitations
- 2014Biosynthesis of zinc substituted magnetite nanoparticles with enhanced magnetic propertiescitations
- 2014An Electrochemical Study of the Influence of Marinobacter aquaeolei on the Alteration of Hydrothermal Chalcopyrite (CuFeS2) and Pyrite (FeS2) under Circumneutral Conditionscitations
- 2011Geochemical and microbial controls of the decomposition of depleted uranium in the environment: Experimental studies using soil microorganismscitations
- 2010Phenotypic characterization of shewanella oneidensis MR-1 under aerobic and anaerobic growth conditions by using fourier transform infrared spectroscopy and high-performance liquid chromatography analysescitations
- 2010Impact of silver(I) on the metabolism of Shewanella oneidensiscitations
- 2009Harnessing the extracellular bacterial production of nanoscale cobalt ferrite with exploitable magnetic propertiescitations
- 2009Harnessing the extracellular bacterial production of nanoscale cobalt ferrite with exploitable magnetic propertiescitations
- 2008Biomineralization: Linking the fossil record to the production of high value functional materialscitations
- 2007Time-resolved synchrotron X-ray powder diffraction study of biogenic nanomagnetitecitations
- 2005Reduction of uranium(VI) phosphate during growth of the thermophilic bacterium Thermoterrabacterium ferrireducenscitations
- 2005Developments in bioremediation of soils and sediments polluted with metals and radionuclides: 2. Field research on bioremediation of metals and radionuclidescitations
Places of action
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article
Copper bioreduction and nanoparticle synthesis by an enrichment culture from a former copper mine
Abstract
Microorganisms can facilitate the reduction of Cu 2+ , altering its speciation and mobility in environmental systems and producing Cu-based nanoparticles with useful catalytic properties. However, only a few model organisms have been studied in relation to Cu 2+ bioreduction and little work has been carried out on microbes from Cu-contaminated environments. This study aimed to enrich for Cu-resistant microbes from a Cu-contaminated soil and explore their potential to facilitate Cu 2+ reduction and biomineralisation from solution. We show that an enrichment grown in a Cu-amended medium, dominated by species closely related to Geothrix fermentans, Azospira restricta and Cellulomonas oligotrophica, can reduce Cu 2+ with subsequent precipitation of Cu nanoparticles. Characterisation of the nanoparticles with (scanning) transmission electron microscopy, energy-dispersive x-ray spectroscopy and electron energy loss spectroscopy supports the presence of both metallic Cu(0) and S-rich Cu(I) nanoparticles. This study provides new insights into the diversity of microorganisms capable of facilitating copper reduction and highlights the potential for the formation of distinct nanoparticle phases resulting from bioreduction or biomineralisation reactions. The implications of these findings for the biogeochemical cycling of copper and the potential biotechnological synthesis of commercially useful copper nanoparticles are discussed.