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Effect of silver and strontium incorporation route on hydroxyapatite coatings elaborated by rf-SPS

hal.structure.identifierCentre interuniversitaire de recherche et d'ingenierie des matériaux [CIRIMAT]
hal.structure.identifierCenter for Research in Energy, Plasma and Electrochemistry [CREPE]
dc.contributor.authorCHAMBARD, Marine
hal.structure.identifierLaboratoire Génie de Production [LGP]
dc.contributor.authorREMACHE, Djamel
hal.structure.identifierLaboratoire Génie de Production [LGP]
dc.contributor.authorBALCAEN, Yannick
hal.structure.identifierLaboratoire Génie de Production [LGP]
dc.contributor.authorDALVERNY, Olivier
hal.structure.identifierLaboratoire Génie de Production [LGP]
dc.contributor.authorALEXIS, Joël
hal.structure.identifierBioingénierie tissulaire [BIOTIS]
dc.contributor.authorSIADOUS, Robin
hal.structure.identifierBioingénierie tissulaire [BIOTIS]
dc.contributor.authorBAREILLE, Reine
hal.structure.identifierBioingénierie tissulaire [BIOTIS]
dc.contributor.authorCATROS, Sylvain
dc.contributor.authorFORT, Pascal
hal.structure.identifierCentre interuniversitaire de recherche et d'ingenierie des matériaux [CIRIMAT]
dc.contributor.authorGROSSIN, David
hal.structure.identifierCenter for Research in Energy, Plasma and Electrochemistry [CREPE]
dc.contributor.authorGITZHOFER, François
hal.structure.identifierCentre interuniversitaire de recherche et d'ingenierie des matériaux [CIRIMAT]
dc.contributor.authorBERTRAND, Ghislaine
dc.date.accessioned2021-06-10T07:03:16Z
dc.date.available2021-06-10T07:03:16Z
dc.date.issued2020
dc.identifier.issn2589-1529
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/78905
dc.description.abstractEnHydroxyapatite coatings have been currently used on hip prostheses for their ability to promote faster osseointe- gration and bone growth. Nevertheless, post-operative infections remain a recurring problem. To overcome this issue, doping with antibacterial elements has become a new trend. In this work, hydroxyapatite coatings elab- orated by radio-frequency suspension plasma spraying (rf-SPS) were doped with silver and strontium. Several doping strategies were explored thanks to the versatility offered by SPS compared with conventional spraying. First way: calcium phosphate doped powders were synthesized by coprecipitation and then dispersed into water before plasma spraying; second way: undoped powder was dispersed into aqueous medium in which nitrates or nanoparticles of the dopant(s) were respectively dissolved/dispersed. XRD revealed a high level of crystallinity ratio (ISO 13 779) and hydroxyapatite proportion for most of the coatings, with the presence of Ag/Ag 2 O nanopar- ticles whatever the doping route. SEM-EDS and STEM have demonstrated a more homogeneous distribution of the strontium within the coating made from the doped powder. Adherence of the coatings was estimated via a 3-point bending test, while bacteriological tests with S. aureus and proliferation of mesenchymal stem cells (hMSC) were performed. The results indicated a preferential incorporation of strontium into the secondary phases, showed efficient bactericidal properties, excellent mechanical properties in comparison with an APS reference coating, and no evidence of cytotoxic effect. This opens the way of a new type of coatings with a finer structure and a higher homogeneity through a better control of physicochemical properties using a suspension as the precursor.
dc.language.isoen
dc.publisherElsevier
dc.subject.enBiological properties
dc.subject.enProperties
dc.subject.enDoped hydroxyapatite coating mechanical
dc.subject.enRf-Suspension plasma spraying
dc.subject.enBactericidal properties
dc.title.enEffect of silver and strontium incorporation route on hydroxyapatite coatings elaborated by rf-SPS
dc.typeArticle de revue
dc.identifier.doi10.1016/j.mtla.2020.100809
dc.subject.halSciences de l'ingénieur [physics]/Matériaux
dc.subject.halSciences du Vivant [q-bio]/Ingénierie biomédicale/Biomatériaux
bordeaux.journalMaterialia
bordeaux.page100809
bordeaux.volume12
bordeaux.hal.laboratoriesBioingénierie Tissulaire (BioTis) - U1026*
bordeaux.institutionCNRS
bordeaux.institutionINSERM
bordeaux.institutionCHU de Bordeaux
bordeaux.institutionInstitut Bergonié
bordeaux.peerReviewedoui
hal.identifierhal-03218463
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03218463v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Materialia&rft.date=2020&rft.volume=12&rft.spage=100809&rft.epage=100809&rft.eissn=2589-1529&rft.issn=2589-1529&rft.au=CHAMBARD,%20Marine&REMACHE,%20Djamel&BALCAEN,%20Yannick&DALVERNY,%20Olivier&ALEXIS,%20Jo%C3%ABl&rft.genre=article


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