Immediate soft-tissue adhesion and the mechanical properties of the Ti–6Al–4V alloy after long-term acid treatment,Journal of Materials Chemistry B

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Immediate soft-tissue adhesion and the mechanical properties of the Ti–6Al–4V alloy after long-term acid treatment
Journal of Materials Chemistry B ( IF 6.1 ) Pub Date : 2021-08-27 , DOI: 10.1039/d1tb00919b
Yaming Wang ₁ , Masahiro Okada ₁ , Shi Chao Xie ₁ , Yu Yang Jiao ₁ , Emilio Satoshi Hara ₁ , Hiroaki Yanagimoto ₂ , Takumi Fukumoto ₂ , Takuya Matsumoto ₁

Affiliation

Close attachment of soft tissues onto implantable devices inside the body is regarded as an optimal condition for preventing complications (e.g., infections and abscess formation around implants, and the migration of small injectable devices). We have recently reported that an α-type commercially pure Ti (CpTi) film after a long-term acid treatment and air drying showed a remarkable soft tissue adhesiveness immediately (i.e., within a few seconds) after the attachment onto soft tissues. Herein, we conducted acid treatment for (α + β)-type Ti–6Al–4V alloys and compared their mechanical properties and the immediate soft-tissue adhesiveness with α-type CpTi. The acid treatment for Ti–6Al–4V also promoted immediate soft-tissue adhesion, although the treatment was less effective than for CpTi. The tensile strength of acid-treated Ti–6Al–4V was much higher than that of acid-treated CpTi or human skin tissues, although the degree of hydrogen embrittlement was more severe than that for CpTi. These results suggest that the small amount of Al in the major α phase and/or the minor β phase of Ti–6Al–4V has a significant influence not only on the mechanical properties but also on the immediate soft-tissue adhesiveness of Ti-based solid-state adhesives after the acid treatment.

中文翻译：

长期酸处理后 Ti-6Al-4V 合金的即时软组织附着力和力学性能

将软组织紧密附着在体内的可植入装置上被认为是预防并发症（例如，植入物周围的感染和脓肿形成，以及小型可注射装置的迁移）的最佳条件。我们最近报道，经过长期酸处理和空气干燥后的 α 型商业纯钛 (CpTi) 薄膜立即显示出显着的软组织粘附性（即, 在几秒钟内) 附着到软组织上后。在此，我们对 (α + β) 型 Ti-6Al-4V 合金进行了酸处理，并比较了它们的机械性能和与 α 型 CpTi 的直接软组织粘合性。Ti-6Al-4V 的酸处理也促进了即时的软组织粘附，尽管该处理不如 CpTi 有效。酸处理的 Ti-6Al-4V 的拉伸强度远高于酸处理的 CpTi 或人体皮肤组织，尽管氢脆程度比 CpTi 更严重。这些结果表明，Ti-6Al-4V 的主要 α 相和/或次要 β 相中的少量 Al 不仅对 Ti 基的力学性能有显着影响，而且对 Ti 基的直接软组织粘合性也有显着影响。酸处理后的固态粘合剂。

更新日期：2021-09-17

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