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首页> 外文期刊>Metals >TiO 2 Nanotubes on Ti Dental Implant. Part 2: EIS Characterization in Hank’s Solution
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TiO 2 Nanotubes on Ti Dental Implant. Part 2: EIS Characterization in Hank’s Solution

机译：钛种植体上的TiO 2纳米管。第2部分：Hank解决方案中的EIS表征

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Titania nanotubes are widely studied for their potential applications in several fields. In this paper, the electrochemical characterization of a dental implant, made of commercially pure titanium grade 2, covered by titania nanotubes, when immersed in Hank’s solution, is proposed. Few papers were found in the scientific literature regarding this topic, so a brief review is reported, concerning the use of some equivalent circuits to model experimental data. The analysis of results, obtained by using Electrochemical Impedance Spectroscopy, showed that: (i) a good correlation exists between the variation of E corr and the estimated values of the charge transfer resistance for both the bare- and the nanotube-covered samples, (ii) the nanostructured surface seems to possess a more active behaviour, while the effect could be over-estimated due to the real extent of the surface covered by nanotubes, (iii) the analysis of the “ n ” parameter, used to fit the experimental data, confirms the complex nature of nanostructured layer as well as that the nanotubes are partially filled by compounds containing Ca, P and Mg, when immersed in Hank’s solution. The results obtained in this work give a better understanding of the electrochemical behaviour of the nanotubes layer when immersed in Hank’s solution and could help to design a surface able to improve the implant osseointegration.
机译：二氧化钛纳米管因其在多个领域的潜在应用而被广泛研究。在本文中，提出了一种牙科植入物的电化学特性，该牙科植入物由商业纯钛2级制成，浸入Hank's溶液中时，被二氧化钛纳米管覆盖。在科学文献中几乎没有关于该主题的论文，因此简要报道了有关使用等效电路对实验数据进行建模的评论。使用电化学阻抗谱获得的结果分析表明：（i）对于裸露的样品和纳米管覆盖的样品，E corr的变化与电荷转移电阻的估计值之间存在良好的相关性，（ ii）纳米结构的表面似乎具有更活跃的行为，而由于纳米管覆盖的表面的真实范围，其效果可能被高估了;（iii）分析“ n”参数以适合实验数据证实了纳米结构层的复杂性质，以及当将纳米管浸入汉克溶液时，纳米管被含钙，磷和镁的化合物部分填充。这项工作获得的结果更好地了解了将纳米管层浸入Hank溶液中的电化学行为，并有助于设计能够改善植入物骨整合的表面。

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