使用 POPE 磷脂作为 Ti-6Al-4V 合金的第一层涂层：初步研究

IF 0.7 Q4 CHEMISTRY, MULTIDISCIPLINARY

Orbital: The Electronic Journal of Chemistry Pub Date : 2024-05-02 DOI:10.17807/orbital.v15i5.19304

J. C. P. do Nascimento, Murilo Oliveira Alves Ferreira, G. T. L. Teixeira, Natália Bueno Leite Slade, Idalina Vieira Aoki, J. Moreto

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引用次数: 0

摘要

磷脂可以提高材料的生物相容性并抑制细菌细胞的生长，因此成为生物材料涂层的有力工具。本文采用一种简单的方法将 POPE 磷脂沉积在 Ti-6Al-4V 合金表面，以提高基体材料的耐腐蚀性。结果表明，Ti-6Al-4V/POPE 的电化学电位比在基体材料上观察到的电化学电位更正，这可能表明其对腐蚀的敏感性更低。两种 EEC 被用来解释有涂层和无涂层试样的腐蚀机制，结果表明，在腐蚀测试开始时，基体材料显示出约 1.86 nm 的氧化层，而在浸泡 24 小时后，氧化层的厚度达到 2.59 nm。由于含有沉积在金属基体上的脂质的系统非常复杂，因此在评估 Ti-6Al-4V/POPE 的腐蚀行为时，只考虑了 CPE 随浸泡时间的变化。这项研究表明，使用 POPE 涂覆 Ti-6Al-4V 合金提高了基体材料的耐腐蚀性，从而扩大了使用这种表面处理方法开发新型生物材料的优势范围。

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The use of POPE Phospholipid as a First-layer Coating of the Ti-6Al-4V Alloy: Preliminary Studies

Phospholipids emerge as a powerful tool to be used as a coating for biomaterials, as they can increase the biocompatibility of the material and inhibit the growth of bacterial cells. Here, POPE phospholipid was deposited on the Ti-6Al-4V alloy surfaces by using a simple method, seeking to improve the corrosion resistance of the base material. Results show that the electrochemical potential of the Ti-6Al-4V/POPE is more positive than that observed in the base material, which could indicate a lower susceptibility to corrosion. Two EECs were used to explain the corrosion mechanisms of the coated and uncoated specimens, demonstrating the base material displays an oxide layer about 1.86 nm in the beginning of the corrosion tests and 2.59 nm after 24 h of immersion. Due to the complexity of the system containing lipids deposited on the metallic matrix, the corrosion behaviour of Ti-6Al-4V/POPE was evaluated considering only the evolution of the CPEs with immersion times. This work shows that the use of POPE for coating the Ti-6Al-4V alloy increased the corrosion resistance of the base material, expanding the range of advantages in the use of this surface treatment in the development of new biomaterials.

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来源期刊

Orbital: The Electronic Journal of Chemistry CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

1.10

自引率

0.00%

发文量

审稿时长

10 weeks

期刊介绍： Orbital: The Electronic Journal of Chemistry is a quarterly scientific journal published by the Institute of Chemistry of the Universidade Federal de Mato Grosso do Sul, Brazil. Original contributions (in English) are welcome, which focus on all areas of Chemistry and their interfaces with Pharmacy, Biology, and Physics. Neither authors nor readers have to pay fees. The journal has an editorial team of scientists drawn from regions throughout Brazil and world, ensuring high standards for the texts published. The following categories are available for contributions: 1. Full papers 2. Reviews 3. Papers on Education 4. History of Chemistry 5. Short communications 6. Technical notes 7. Letters to the Editor The Orbital journal also publishes a number of special issues in addition to the regular ones. The central objectives of Orbital are threefold: (i) to provide the general scientific community (at regional, Brazilian, and worldwide levels) with a formal channel for the communication and dissemination of the Chemistry-related literature output by publishing original papers based on solid research and by reporting contributions which further knowledge in the field; (ii) to provide the community with open, free access to the full content of the journal, and (iii) to constitute a valuable channel for the dissemination of Chemistry-related investigations.