Sputtered Si and Mg doped hydroxyapatite for biomedical applications

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dc.contributor.authorAbdulgader, Radwan
dc.contributor.authorMonsees, Thomas K.
dc.date.accessioned2019-10-18T10:31:54Z
dc.date.available2019-10-18T10:31:54Z
dc.date.issued2018-01-30
dc.description.abstractHydroxyapatite (HAP) coatings are applied on metallic implant materials to combine mechanical properties of metallic material with bioactivity abilities of HAP ceramic. In this study, HAP coatings with additions of Si and Mg are proposed to be deposited on Ti6Al4V substrates by RF magnetron sputtering. Chemical bonding, morphology, topography and corrosion resistance in simulated body fluids(SBF) of the coatings were investigated. Additionally, mechanical and biological properties of the coatings were evaluated. It was found that the addition of Si and Mg does not influence the formation of a HAP phase. All the coatings exhibited smooth surface and uniform growth, without defects or cracks. Both hardness and elastic modulus of the coated samples decrease with Mg addition in the HAP-Si structure. Both Mg and Si addition into HAP coatings were found to enhance the corrosion resistance of the Ti6Al4V alloy in the SBF solution. Coatings with low Mg content exhibited better corrosion performance. All the coatings investigated were biocompatible, as demonstrated by SaOS-2 bone cell attachment and growth. However, cell proliferation and morphology were inferior on samples with the highest Mg content.en_US
dc.description.sponsorshipBilateral Cooperation Turkey-Romania Project (RO599/2013 and TUBITAK 112R020). PN-II-PT-PCCA2014-212 and PED117/2017 (PNIII) financed by the Romanian National Authority for Scientific Research (CNCS—UEFISCDI).en_US
dc.identifier.citationAlina Vladescu et al 2018 Biomed. Mater. 13en_US
dc.identifier.issn025011
dc.identifier.urihttp://hdl.handle.net/10566/5051
dc.language.isoenen_US
dc.publisherIOP Publishingen_US
dc.subjectBiomedial applicationsen_US
dc.subjectMetallic implant materialsen_US
dc.subjectHydroxyapatite (HAP)en_US
dc.titleSputtered Si and Mg doped hydroxyapatite for biomedical applicationsen_US
dc.typeArticleen_US

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