Effects of anodic oxidation in H_2SO_4 electrolyte on the biocompatibility of NiTi shape memory alloy

C.L Chu; R.M. Wang; L.H. Yin; Y.P. Pu; P.H. Lin; Y.S. Dong; C.Y. Chung; K.W.K. Yeung; P.K. Chu

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Effects of anodic oxidation in H_2SO_4 electrolyte on the biocompatibility of NiTi shape memory alloy

机译：H_2SO_4电解质中的阳极氧化对NiTi形状记忆合金生物相容性的影响

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摘要

Effects of anodic oxidation in H_2SO_4 electrolyte on the biocompatibility of NiTi shape memory alloy (SMA) were investigated by characterizing surface structure, blood compatibility, wettability, release of harmful Ni ions of anodized NiTi SMA. Although titania film resulting from anodic oxidation in H_2SO_4 electrolyte has a porous structure, it can effectively block out-diffusion of Ni from NiTi SMA to simulated body fluid (SBF). Comparing with chemical polishing, anodic oxidation in H_2SO_4 electrolyte can also improve the wettability, blood compatibility, thromboresistance of NiTi SMA.

机译：通过表征表面结构，血液相容性，润湿性，阳极氧化的NiTi SMA有害镍离子的释放，研究了H_2SO_4电解质中的阳极氧化对NiTi形状记忆合金（SMA）生物相容性的影响。尽管由H_2SO_4电解质中的阳极氧化产生的二氧化钛膜具有多孔结构，但它可以有效地阻止Ni从NiTi SMA扩散到模拟体液（SBF）。与化学抛光相比，H_2SO_4电解质中的阳极氧化还可以改善NiTi SMA的润湿性，血液相容性和抗血栓性。

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来源
《Materials Letters》 |2008年第20期|p.3512-3514|共3页
作者
C.L Chu; R.M. Wang; L.H. Yin; Y.P. Pu; P.H. Lin; Y.S. Dong; C.Y. Chung; K.W.K. Yeung; P.K. Chu;
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作者单位

School of Materials Science and Engineering, Southeast University, Nanjing, 211189, China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类工程材料学;
关键词
NiTi; shape memory materials; anodic oxidation; surfaces; biocompatibility;

机译：镍钛;形状记忆材料;阳极氧化;表面;生物相容性;

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2. Preparation of Ca doping Zr0(2) coating on NiTi shape memory alloy by cathodic plasma electrolytic deposition and its structure, in-vitro bioactivity and biocompatibility analysis [J] . Wang Hairui, Sun Tao, Chang Limin, Surface & Coatings Technology . 2017,第期

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3. Purified titanium oxide with novel morphologies upon spark anodization of Ti alloys in mixed H_2SO_4/H_3PO_4 electrolytes [J] . P. Kern, O. Zinger Journal of biomedical materials research, Part A . 2007,第2期

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4. Effects of anodic oxidation in ethylene glycol based electrolyte on the corrosion resistance and biocompatibility of NiTi shape memory alloy [C] . Maryam Pourmahdavi, Nader Parvin International Conference on Ultrafine Grained and Nano-structured Materials . 2014

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5. Effects of Size and Geometry on the Thermomechanical Properties of Additively-Manufactured NiTi Shape Memory Alloys [D] . Farjam, Nazanin. 2018

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6. Formation of Nitrogen Doped Titanium Dioxide Surface Layer on NiTi Shape Memory Alloy [O] . Michał Tarnowski, Justyna Witkowska, Jerzy Morgiel, 2021

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7. Effects of Surface Characteristics on the in vitro Biocompatibility Response of NiTi Shape Memory Alloys [O] . Sıdıka Mine Toker 2019

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Effects of anodic oxidation in H_2SO_4 electrolyte on the biocompatibility of NiTi shape memory alloy

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