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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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Wang, Hui
Queen's University Belfast
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (23/23 displayed)
- 2024CNC-Machined and 3D-Printed Metal G-band Diplexers for Earth Observation Applicationscitations
- 2023Evaluation of 3D printed monolithic G-band waveguide componentscitations
- 2023Machine learning on spectral data from miniature devices for food quality analysis - a case study
- 2023Halide-guided active site exposure in bismuth electrocatalysts for selective CO2 conversion into formic acidcitations
- 2023Halide-guided active site exposure in bismuth electrocatalysts for selective CO2 conversion into formic acid
- 2022A 3D printed 300 GHz waveguide cavity filter by micro laser sinteringcitations
- 2022D-band waveguide diplexer fabricated using micro laser sinteringcitations
- 2022Waste‐Derived Copper‐Lead Electrocatalysts for CO<sub>2</sub> Reductioncitations
- 2022Waste-Derived Copper-Lead Electrocatalysts for CO 2 Reductioncitations
- 2022Waste-Derived Copper-Lead Electrocatalysts for CO2 Reduction
- 2021125 GHz frequency doubler using a waveguide cavity produced by stereolithographycitations
- 2021Trileucine as a dispersibility enhancer of spray-dried inhalable microparticlescitations
- 2016Thermoelectric Properties of Polymeric Mixed Conductorscitations
- 2014Self-assembled nano- to micron-size fibers from molten R11Ni4In9 intermetallicscitations
- 2014Semi-metallic polymerscitations
- 2014Semi-metallic polymerscitations
- 2013Spatially resolved investigation of strain and composition variations in (In,Ga)N/GaN epilayerscitations
- 2013Exploring suitable oligoamines for phantom ring-closing condensation polymerization with guanidine hydrochloridecitations
- 2013A novel method to measure diffusion coefficients in porous metal-organic frameworks (vol 12, pg 8093, 2010)
- 2010A metadata-based approach for multimedia service mashup in IMS
- 2010A novel method to measure diffusion coefficients in porous metal-organic frameworkscitations
- 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
Places of action
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article
Impact of silver(I) on the metabolism of Shewanella oneidensis
Abstract
Anaerobic cultures of Shewanella oneidensis MR-1 reduced toxic Ag(I), forming nanoparticles of elemental Ag(0), as confirmed by X-ray diffraction analyses. The addition of 1 to 50 μM Ag(I) had a limited impact on growth, while 100 μM Ag(I) reduced both the doubling time and cell yields. At this higher Ag(I) concentration transmission electron microscopy showed the accumulation of elemental silver particles within the cell, while at lower concentrations the metal was exclusively reduced and precipitated outside the cell wall. Whole organism metabolite fingerprinting, using the method of Fourier transform infrared spectroscopy analysis of cells grown in a range of silver concentrations, confirmed that there were significant physiological changes at 100 μM silver. Principal component-discriminant function analysis scores and loading plots highlighted changes in certain functional groups, notably, lipids, amides I and II, and nucleic acids, as being discriminatory. Molecular analyses confirmed a dramatic drop in cellular yields of both the phospholipid fatty acids and their precursor molecules at high concentrations of silver, suggesting that the structural integrity of the cellular membrane was compromised at high silver concentrations, which was a result of intracellular accumulation of the toxic metal. Copyright © 2010, American Society for Microbiology. All Rights Reserved.