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首页> 外文期刊>Journal of biomedical materials research. Part B, Applied biomaterials. >A novel method of surface modification by electrochemical deoxidation: Effect on surface characteristics and initial bioactivity of zirconia
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A novel method of surface modification by electrochemical deoxidation: Effect on surface characteristics and initial bioactivity of zirconia

机译：电化学脱氧的一种新型表面改性方法：对氧化锆的表面特征和初始生物活性的影响

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Abstract The aim of this study was to investigate and compare the surface characteristics and initial bioactivity of ceria‐stabilized zirconia/alumina nanocomposite (NANOZR) with those of yttria‐stabilized zirconia (3Y‐TZP) and pure titanium (CpTi) following the use of three surface modification methods; polishing, sandblasting/acid‐etching (SB‐E) and electrochemical deoxidation (ECD). Physical properties including surface morphology, chemical composition, X‐ray diffraction, surface wettability, surface roughness, and hardness were measured. Osteoblast‐like MC3T3‐E1 cells were used to examine cell morphology and attachment to the surfaces of the materials. ECD treated NANOZR (NANOZR‐E) showed a well‐arranged, self‐organized microporous surface structure with significantly low contact angles when compared with the other specimens ( p ??0.05). NANOZR‐E also demonstrated a slight decrease in monoclinic phase content (?4.4 wt %). The morphology and attachment of MC3T3‐E1 cells on NANOZR‐E were similar to those on polished and SBE‐treated CpTi surfaces. Higher cell affinity was observed on NANOZR‐E when compared with ECD treated 3Y‐TZP. The findings of this study indicate the effectiveness of the novel technique, ECD, in the formation of a microporous surface on NANOZR when compared with both CpTi and 3Y‐TZP. Moreover, this method also appears to improve the biological activity of NANOZR during the initial stage. ? 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 2641–2652, 2017.
机译：摘要本研究的目的是研究和比较二氧化铈稳定的氧化锆/氧化铝纳米复合材料（NANOZR）与使用后的氧化钇稳定的氧化锆（3Y-TZP）和纯钛（CPTI）的表面特征和初始生物活性三种表面改性方法;抛光，喷砂/蚀刻（SB-E）和电化学脱氧（ECD）。测量包括表面形态，化学成分，X射线衍射，表面润湿性，表面粗糙度和硬度的物理性质。用于检查细胞形态和附着于材料的表面的骨细胞样MC3-E1细胞。 ECD处理的Nanozr（Nanozr-E）显示了良好的自组织的自组织微孔表面结构，与其他样本相比（p≤0.05）相比具有明显低的接触角。 Nanozr-E还表明单核相含量的轻微降低（α.4.4wt％）。 MC3T3-E1细胞对NanozR-E的形态和附着与抛光和SbE处理的CPTI表面上的形态和附着。与ECD处理3Y-TZP相比，在NaNozR-E上观察到更高的细胞亲和力。该研究的结果表明，与CPTI和3Y-TZP相比，新型技术ECD在纳米中形成微孔表面的有效性。此外，该方法还似乎在初始阶段期间改善纳米的生物活性。还2016 Wiley期刊，Inc。J生物保解率B：Appl Biomater，105B：2641-2652,2017。

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