| 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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Vickridge, Ian
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2024Exploring OH incorporation pathways in pulsed laser deposited EuOOH thin films
- 2021The carbon and hydrogen contents in ALD-grown ZnO films define a narrow ALD temperature windowcitations
- 2020Harnessing Atomic Layer Deposition and Diffusion to Spatially Localize Rare-Earth Ion Emitterscitations
- 2020Low resistivity amorphous carbon-based thin films employed as anti-reflective coatings on coppercitations
- 2017XPS and NRA investigations during the fabrication of gold nanostructured functionalized screen-printed sensors for the detection of metallic pollutantscitations
- 2015Rutherford Backscattering Spectrometry analysis of iron-containing Bi2Se3 Topological Insulator thin filmscitations
- 2014Multicharacterization approach for studying InAl(Ga)N/Al(Ga)N/GaN heterostructures for high electron mobility transistorscitations
- 2011Ferromagnetism in Ga0.90Mn0.10As1-yPy: From the metallic to the impurity band conduction regimecitations
- 2008Li-ion intercalation in thermal oxide thin films of MoO3 as studied by XPS, RBS, and NRAcitations
- 2007Ageing of V2O5 thin films induced by Li intercalation multi-cyclingcitations
- 2006TaSiN diffusion barriers deposited by reactive magnetron sputteringcitations
- 2005Characterization of SiC thin film obtained by magnetron reactive sputtering : IBA, IR and Raman studies
- 2005Influence of substrate temperature on growth of nanocrystalline silicon carbide by reactive magnetron sputteringcitations
- 2005Control of the reactivity at a metal/silica interfacecitations
- 2004Characterization of SiC thin film obtained by magnetron reactive sputtering : IBA, IR and Raman studies
- 2004Study of thin hafnium oxides deposited by atomic layer depositioncitations
- 2002Oxygen isotopic exchange occurring during dry thermal oxidation of 6H SiCcitations
Places of action
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article
XPS and NRA investigations during the fabrication of gold nanostructured functionalized screen-printed sensors for the detection of metallic pollutants
Abstract
An all covalent nanostructured lead sensor was built by the successive grafting of gold nanoparticles and carboxylic ligands at the surface of self-adhesive carbon screen-printed electrodes (SPEs). Surface analysis techniques were used in each step in order to investigate the structuration of this sensor. The self-adhesive surfaces were made from the electrochemical grafting of p-phenylenediamine at the surface of the SPEs via diazonium salts chemistry. The quantity of grafted aniline functions, estimated by Nuclear Reaction Analysis (NRA) performed with p-phenylenediamine labelled with 15N isotope, is in agreement with an almost complete coverage of the electrode surface. The subsequent diazotization of the aniline functions at the surface of the SPEs was performed; X-ray Photoelectron Spectroscopy (XPS) allowed us to consider a quantitative conversion of the aniline functions into diazonium moieties. The spontaneous grafting of gold nanoparticles on the as-obtained reactive surfaces ensures the nanostructuration of the material, and XPS studies showed that the covalent bonding of the gold nanoparticles at the surface of the SPEs induces a change both in the Au-4f (gold nanoparticles) and Cl-2p (carbon ink) core level signals. These unusual observations are explained by an interaction between the carbon ink constituting the substrate and the gold nanoparticles. Heavy and toxic metals are considered of major environmental concern because of their non-biodegradability. In a final step, the grafting of the carboxylic ligands at the surface of the SPEs and an accumulation step in the presence of lead(II) cations allowed us to evidence the interest of nanostructured materials as metallic pollutants sensors.