title: Novel zirconium nitride and hydroxyapatite nanocomposite coating: detailed analysis and functional properties.
abstract: A new type of high-quality zirconium nitride (ZrN) and hydroxyapatite (HA) bionanocomposite was prepared by radio-frequency (RF) magnetron sputtering for biomedical applications. Detailed analysis of this composite coating revealed that a higher substrate temperature (ST) (>300 °C) increased its crystallinity, uniformity, and functional properties. This nanocomposite showed some encouraging functional properties. Mechanical analyses of the nanocomposite showed improved hardness, modulus, and wear resistance, which were found to be due to the increasing volume fraction of ZrN at higher ST. Biomineralization and in vitro cell analysis revealed increased weight gain and enhanced cell activity with increased substrate temperature. Overall, the results of the present study indicate that this nanocomposite coating could become a promising alternative for biomedical applications.
authors.affiliation: Department of Nano, Medical and Polymer Materials, Yeungnam University , Gyeongsan 712-749, S. Korea.
authors.forename: A Joseph
authors.initials: AJ
authors.lastname: Nathanael
authors.forename: R
authors.initials: R
authors.lastname: Yuvakkumar
authors.forename: Sun Ig
authors.initials: SI
authors.lastname: Hong
authors.forename: Tae Hwan
authors.initials: TH
authors.lastname: Oh
mesh_terms: D001672:Biocompatible Materials / Q000737:chemistry*; D003460:Crystallization; D017886:Durapatite / Q000737:chemistry*; D006801:Humans; D008422:Materials Testing; D053761:Nanocomposites / Q000737:chemistry*; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry; D014961:X-Ray Diffraction; D015040:Zirconium / Q000737:chemistry*
chemical_list: D001672:Biocompatible Materials; D017886:Durapatite; D015040:Zirconium; D014025:Titanium