| STEM and EDXS characterization of physico-chemical reactions at the periphery of bioactive glass particles in contact with biological fluids (2003) | |||||||||||||
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| STEM and EDXS characterisation physico chemical reactions the periphery bioactive glass particles contact with biological fluids JALLOT BANCHET CHASSOT KILIAN JOSSET LAURENTMAQUIN Laboratoire Physique Corpusculaire Clermont Ferrand CNRS UMR avenue des Landais AUBIERE Cedex France INSERM ERM Laboratoire Microscopie Electronique rue ment Ader REIMS Cedex France Corresponding author Edouard JALLOT Laboratoire Physique Corpusculaire Clermont Ferrand CNRS UMR Universit Blaise Pascal avenue des Landais Aubiere Cedex France Tel Fax mail jallot clermont Abstract Knowledge the local concentration and species ions released the bioactive glass particles biological fluids interface primordial the understand the complex interfacial reactions and physico chemical properties bioactive glasses This work characterises the interface that bioactive glass particles develop after immersion into biological fluids for different delays days The distribution silicon phosphorus calcium and aluminium varied across bioactive particles periphery After day immersion into biological fluids rich layer appeared the bioactive glass surface After days significantly higher concentrations and are observed top this newly formed SiAl layer compared the center the glass particles Then apatite layer starts built and grows with time after immersion into biological fluids The atomic ratio increases with time from A thick rich layer was formed after days The layer appeared generated calcium and phosphate ions diffusing | |||||||||||||
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