Résumé
Copper/silver core/shell nanopowders with different metal ratio have been elaborated by electrochemistry (ultrasound-assisted electrolysis followed by a displacement reaction). Characterization was performed by several methods (X-ray diffraction, scanning electron microscope, energy-dispersive X-ray spectroscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, centrifugal liquid sedimentation, and zeta potential measurements). The mean diameter of all nanoparticles is around 10 nm. The impact of each nanopowder on hemolysis, platelet aggregation, and coagulation has been studied on whole human blood. Hemolysis assays were performed with spectrophotometric measurement and platelet aggregation, with light transmission aggregometry and was compared to Cu/Pt core/shell nanoparticles with similar size as negative control. Calibrated thrombin generation test has been used for a coagulation study. They neither impact platelet aggregation nor hemolysis and have a procoagulant effect whatever their composition (i.e., metal ratio). These results highlight that such nanopowders have a potential use in medical applications (e.g., wound dressing).
langue originale | Anglais |
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Numéro d'article | 266 |
journal | Journal of Nanoparticle Research |
Volume | 19 |
Numéro de publication | 8 |
Les DOIs | |
Etat de la publication | Publié - 1 août 2017 |
Financement
This research received support from the QualityNano Project http://www.QualityNano.eu which is financed by the European Community Research Infrastructures under the F7 Capacities Programme (grant no. INFRA-2010-262163) and its partner University of Namur. This work was also supported by the DGO6 (Direction G\u00E9n\u00E9rale Op\u00E9rationnelle de l\u2019Economie, de l\u2019Emploi et de la Recherche) of the Walloon Region of Belgium (\u201CProject Compl\u00E9ment FP7 Qnano, Convention n\u00B01117448\u201D). This study was funded by the European Community Research Infrastructures (grant number INFRA-2010-262163) and by the Walloon Region of Belgium (Project Compl\u00E9ment FP7 Qnano, Convention n\u00B01117448).
Bailleurs de fonds | Numéro du bailleur de fonds |
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DGO6 | |
Walloon Region of Belgium | |
European Community Research Infrastructures | |
European commission | 262163 |
F7 Capacities Programme | INFRA-2010-262163 |
Seventh Framework Programme | 1117448 |
Empreinte digitale
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Synthèse, Irradiation et Analyse de Matériaux (SIAM) (2016 - ...)
Louette, P. (!!Manager), Colaux, J. (!!Manager), Felten, A. (!!Manager), Tabarrant, T. (!!Operator), COME, F. (!!Operator) & Debarsy, P.-L. (!!Manager)
Plateforme technologique Synthese, irradiation et analyse des materiauxEquipement/installations: Plateforme technolgique