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首页> 外文期刊>Acta biomaterialia >Electrochemical formation of self-organized anodic nanotube coating on Ti-28Zr-8Nb biomedical alloy surface.
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Electrochemical formation of self-organized anodic nanotube coating on Ti-28Zr-8Nb biomedical alloy surface.

机译：Ti-28Zr-8Nb生物医学合金表面上自组织阳极纳米管涂层的电化学形成。

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摘要

In recent years, Ti-Zr-Nb alloys have become increasingly attractive as biomedical implant materials. In the present communication, we report the formation of self-organized nanotube oxide layers on a Ti-28Zr-8Nb biomedical alloy surface in 1M (NH4)2SO4 containing 0.25M NH4F. The morphology of the nanotube layers (the diameter and the length) is affected by the electrochemical conditions used (applied potential and time). Under specific conditions oxide layers consisting of highly ordered nanotubes with a wide range of diameters and lengths can be formed, varying, respectively, from approx. 50 to 300nm and from approx. 500nm to 22microm. The present results are highly promising for this biomedical alloy, as the large surface area and the tunable nanoscale geometry of the surface oxide provide novel pathways for the interaction of the materials with biorelevant species, such as cells and proteins.
机译：近年来，Ti-Zr-Nb合金作为生物医学植入材料变得越来越有吸引力。在本通讯中，我们报告了在含有0.25M NH4F的1M（NH4）2SO4中的Ti-28Zr-8Nb生物医学合金表面上形成了自组织纳米管氧化物层。纳米管层的形态（直径和长度）受所用电化学条件（施加电势和时间）的影响。在特定条件下，可以形成由直径和长度范围很宽的高度有序的纳米管组成的氧化物层，其直径分别从大约1到大约2。 50至300nm左右500nm至22microm。对于这种生物医学合金来说，目前的结果是很有希望的，因为表面氧化物的大表面积和可调节的纳米级几何形状为材料与生物相关物种（例如细胞和蛋白质）的相互作用提供了新颖的途径。

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