生物医学用灭菌钛合金的表面特性

IF 6.9 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Applied Surface Science Pub Date : 1993-05-01 DOI:10.1016/0169-4332(93)90220-6

Norma L. Hernández de Gatica, Gary L. Jones, Joseph A. Gardella Jr.

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引用次数: 0

摘要

钛和钛基种植体的高生物相容性与种植体制备阶段形成的表面氧化物的性质密切相关。在加工过程中，金属暴露在环境大气中并被氧化。该表面氧化层可在随后的种植体制备步骤中进行修饰：清洗和灭菌。在本研究中，对Ti-6Al-4V合金进行了紫外辐射、蒸汽高压灭菌和氩气中射频辉光放电（RFGD）处理前后的表面元素和化学信息以及氧化层的厚度进行了评估。使用的分析技术是：x射线光电子能谱（XPS或ESCA）和扫描俄歇微探针（SAM）。研究结果表明，在蒸汽蒸压、紫外辐射和RFGD处理中，后者产生的表面更清洁。此外，在氩气中进行RFGD处理的样品的深度剖面显示，与未灭菌的样品相比，氧化层厚度有所增加。

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Surface characterization of titanium alloys sterilized for biomedical applications

The high biocompatibility of Ti and Ti-based implants is closely related to the properties of the surface oxide formed during the implant preparation stages. During the machining process, the metal is exposed to the ambient atmosphere and oxidized. This surface oxide layer may be modified during the subsequent implant preparation steps: cleaning and sterilization.

In this study, surface elemental and chemical information as well as the thickness of the oxide layer are evaluated for the Ti-6Al-4V alloy before and after different sterilization procedures: UV radiation, steam autoclaving, and radio-frequency glow-discharge (RFGD) treatment in argon atmosphere. The analytical techniques used are: X-ray photoelectron spectroscopy (XPS or ESCA) and the scanning Auger microprobe (SAM).

The results of this study indicate that among steam autoclaving, UV radiation and RFGD treatment, the latter yields cleaner surfaces. Also, depth profiles of the specimens treated with RFGD in argon showed an increase in the oxide layer thickness with respect to the values observed for non-sterilized samples.

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来源期刊

Applied Surface Science 工程技术-材料科学：膜

CiteScore

12.50

自引率

7.50%

发文量

3393

审稿时长

67 days

期刊介绍： Applied Surface Science covers topics contributing to a better understanding of surfaces, interfaces, nanostructures and their applications. The journal is concerned with scientific research on the atomic and molecular level of material properties determined with specific surface analytical techniques and/or computational methods, as well as the processing of such structures.