1 Ocak 2017 Dergi makalesi Açık Erişim

Aktug, Salim Levent; Durdu, Salih; Yalcin, Emine; Cavusoglu, Kultigin; Usta, Metin

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{
  "@context": "https://schema.org/", 
  "@id": 90155, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "Gebze Tech Univ, Dept Mat Sci & Engn, TR-41400 Gebze, Kocaeli, Turkey", 
      "name": "Aktug, Salim Levent"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Giresun Univ, Dept Ind Engn, Gure Campus, TR-28200 Merkez, Giresun, Turkey", 
      "name": "Durdu, Salih"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Giresun Univ, Dept Biol, TR-28200 Merkez, Giresun, Turkey", 
      "name": "Yalcin, Emine"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Giresun Univ, Dept Biol, TR-28200 Merkez, Giresun, Turkey", 
      "name": "Cavusoglu, Kultigin"
    }, 
    {
      "@type": "Person", 
      "name": "Usta, Metin"
    }
  ], 
  "datePublished": "2017-01-01", 
  "description": "In the present work, hydroxyapatite (HAP)-based plasma electrolytic oxide (PEO) coatings were produced on zirconium at different current densities in a solution containing calcium acetate and beta-calcium glycerophosphate by a single step. The phase structure, surface morphology, functional groups, thickness and roughness of the coatings were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR), eddy current method and surface profilometer, respectively. The phases of cubic-zirconia, calcium zirconate and HAP were detected by XRD. The amount of HAP and calcium zirconate increased with increasing current density. The surface of the coatings was very porous and rough. Moreover, bioactivity and biocompatibility of the coatings were analyzed in vitro immersion simulated body fluid (SBF) and ME (3-(4,5-dimethyl thiazol-2yl)-2,5-diphenyl tetrazolium bromide) assay, hemolysis assay and bacterial formation. The apatite -forming ability of the coatings was evaluated after immersion in SBF up to 28 days. After immersion, the bioactivity of HAP -based coatings on zirconium was greater than the ones of uncoated zirconium and zirconium oxide-based surface. The bioactivity of PEO surface on zirconium was significantly improved under SBF conditions. The bacterial adhesion of the coatings decreased with increasing current density. The bacterial adhesion of the coating produced at 0.370 A/cm(2) was minimum compared to uncoated zirconium coated at 0.260 and 0.292 A/cm(2). The hemocompatibility of HAP-based surfaces was improved by PEO. The cell attachment and proliferation of the PEO coating were better than the one of uncoated zirconium according to MIT assay results. (C) 2016 Elsevier B.V. All rights reserved.", 
  "headline": "Bioactivity and biocompatibility of hydroxyapatite-based bioceramic coatings on zirconium by plasma electrolytic oxidation", 
  "identifier": 90155, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "Bioactivity and biocompatibility of hydroxyapatite-based bioceramic coatings on zirconium by plasma electrolytic oxidation", 
  "url": "https://aperta.ulakbim.gov.tr/record/90155"
}