Imaging Physicochemical Reactions Occurring at the Pore Surface in Binary Bioactive Glass Foams by Micro Ion Beam Analysis
hal.structure.identifier | Laboratoire de Physique Corpusculaire - Clermont-Ferrand [LPC] | |
dc.contributor.author | JALLOT, Edouard | |
hal.structure.identifier | Laboratoire de Physique Corpusculaire - Clermont-Ferrand [LPC] | |
dc.contributor.author | LAO, Jonathan | |
hal.structure.identifier | Laboratoire de Physique Corpusculaire - Clermont-Ferrand [LPC] | |
dc.contributor.author | JOHN, L. | |
hal.structure.identifier | Laboratoire de Physique Corpusculaire - Clermont-Ferrand [LPC] | |
dc.contributor.author | SOULI, J. | |
hal.structure.identifier | Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG] | |
dc.contributor.author | MORETTO, P. | |
hal.structure.identifier | Laboratoire des Matériaux Inorganiques [LMI] | |
dc.contributor.author | NEDELEC, Jean-Marie | |
dc.date.issued | 2010-06 | |
dc.description.abstractEn | In this work, the physicochemical reactions occurring at the surface of bioactive sol−gel derived 3D glass scaffolds via a complete PIXE characterization were studied. 3D glass foams in the SiO2−CaO system were prepared by sol−gel route. Samples of glass scaffolds were soaked in biological fluids for periods up to 2 days. The surface changes were characterized using particle induced X-ray emission (PIXE) associated to Rutherford backscattering spectroscopy (RBS), which are efficient methods to perform quantitative chemical maps. Elemental maps of major and trace elements at the glass/biological fluids interface were obtained at the micrometer scale for every interaction time. Results revealed interconnected macropores and physicochemical reactions occurring at the surface of pores. The micro-PIXE-RBS characterization of the pores/biological fluids interface shows the glass dissolution and the rapid formation of a Ca rich layer with the presence of phosphorus that came from biological fluids. After 2 days, a calcium phosphate-rich layer containing magnesium is formed at the surface of the glass scaffolds. We demonstrate that quantities of phosphorus provided only by the biological medium have a significant impact on the development and the formation of the phosphocalcic layer. | |
dc.language.iso | en | |
dc.title.en | Imaging Physicochemical Reactions Occurring at the Pore Surface in Binary Bioactive Glass Foams by Micro Ion Beam Analysis | |
dc.type | Article de revue | |
dc.identifier.doi | 10.1021/am1002316 | |
dc.subject.hal | Physique [physics]/Physique [physics]/Biophysique [physics.bio-ph] | |
bordeaux.journal | Applied Materials & Interfaces | |
bordeaux.page | 1737-1742 | |
bordeaux.volume | 2 | |
bordeaux.peerReviewed | oui | |
hal.identifier | in2p3-00497564 | |
hal.version | 1 | |
hal.popular | non | |
hal.audience | Non spécifiée | |
hal.origin.link | https://hal.archives-ouvertes.fr//in2p3-00497564v1 | |
bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Applied%20Materials%20&%20Interfaces&rft.date=2010-06&rft.volume=2&rft.spage=1737-1742&rft.epage=1737-1742&rft.au=JALLOT,%20Edouard&LAO,%20Jonathan&JOHN,%20L.&SOULI,%20J.&MORETTO,%20P.&rft.genre=article |
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