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Synthesis, characterization, and bioactivity of SrTiO_3-incorporated titanium coating

机译：掺SrTiO_3的钛涂层的合成，表征和生物活性

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摘要

Surface modification by the bioactive material is a potential way to overcome the poor osseoconductivity of titanium (Ti)-based implants. A continuous wave laser source was used to deposit strontium titanate (SrTiO3)-reinforced Ti coating on the Ti substrate using the laser engineered net shaping (LENS (TM)) process. The maximum of 10 wt% SrTiO3 could be incorporated into Ti using laser without cracking of the deposit. This study investigated the constituent phases, microstructure, compositional analysis, wettability, and electrochemical behavior of the composite coatings. XRD and EDX analyses confirmed the presence of the SrTiO3 phase in the coatings. The composite coatings also exhibited superior mechanical properties, corrosion resistance, and bioactivity compared to that of commercially pure Ti. In vitro ion release study confirmed the sustain release of Sr2+ from the composite coatings. In summary, the excellent mechanical bonding with the substrate and high in vitro bioactivity make these SrTiO3-incorporated composite coatings as a potential material to enhance osseoconductivity of Ti-based orthopedic implants.
机译：通过生物活性材料进行的表面改性是克服钛（Ti）基植入物不良骨传导性的潜在方法。使用连续波激光源，通过激光工程网成形（LENS（TM））工艺在钛基板上沉积钛酸锶（SrTiO3）增强的钛涂层。可以使用激光将最多10 wt％的SrTiO3掺入Ti中，而不会使沉积物破裂。这项研究调查了复合涂层的组成相，微观结构，组成分析，润湿性和电化学行为。 XRD和EDX分析证实了涂层中存在SrTiO3相。与商业纯钛相比，该复合涂层还表现出优异的机械性能，耐腐蚀性和生物活性。体外离子释放研究证实了Sr2 +从复合涂层中的持续释放。总而言之，与基材的出色机械结合和高体外生物活性使这些掺入SrTiO3的复合涂层成为增强Ti基骨科植入物骨传导性的潜在材料。

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  • 来源
    《Journal of Materials Research》 |2018年第14期|2087-2095|共9页
  • 作者

    Sahoo Souvik; Sinha Arijit; Balla Vamsi Krishna; Das Mitnn;

  • 作者单位

    CSIR Cent Glass, Bioceram & Coating Div, Kolkata 700032, India;

    Indian Inst Engn Sci & Technol, Dr MN Dastur Sch Mat Sci & Engn, Howrah 711103, India;

    CSIR Cent Glass, Bioceram & Coating Div, Kolkata 700032, India;

    CSIR Cent Glass, Bioceram & Coating Div, Kolkata 700032, India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    coating; biomaterial; Sr;

    机译：涂层;生物材料;锶;

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