Abstract PVA/HAp based bionanocomposite coatings (PHAp) are prepared by the microwave-assisted deposition technique. The surface of the coatings is modified using low energy (90 keV) argon (Ar9+) ions with various fluences 1×1014, 1×1015 and 1×1016 ions/cm2. A significant reduction in crystallite size attained at lower fluence (1×1014 ions/cm2) with a variation on functional groups of the HAp and the polymer. Microporous surface with an agglomerated particle size (4 to 5 μm) is attained at the lower fluence. The band gap and the in-vitro bioactivity of the coatings were enhanced on implantation. Photoluminescence analysis illustrated a blue emission at the lower fluence by the formation of new defect energy levels. Ion implantation tailors a hydrophilic and weak hydrophobic surface of bionanocomposite coatings. Thus, overall results demonstrated that the surface modified PHAp coatings could be used for optoelectronics applications by tuning the defect's energy levels. Besides, it could also be useful in the field of biomedical engineering.

中文翻译：

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氩离子注入聚乙烯醇/生物羟基磷灰石涂层的新型微孔表面和蓝光发射

摘要 采用微波辅助沉积技术制备了 PVA/HAp 基生物纳米复合涂层 (PHAp)。使用具有 1×1014、1×1015 和 1×1016 离子/cm2 的各种能量密度的低能量 (90 keV) 氩 (Ar9+) 离子对涂层表面进行改性。随着 HAp 和聚合物官能团的变化，在较低的能量密度 (1×1014 离子/cm2) 下获得了微晶尺寸的显着减小。在较低的通量下获得具有团聚粒径（4 至 5 微米）的微孔表面。涂层的带隙和体外生物活性在植入时得到增强。光致发光分析表明，通过形成新的缺陷能级，在较低的能量密度下发出蓝色光。离子注入可定制生物纳米复合涂层的亲水性和弱疏水性表面。因此，总体结果表明，通过调整缺陷的能级，表面改性的 PHAp 涂层可用于光电子应用。此外，它还可以用于生物医学工程领域。