Hafnium dioxide obtained by atomic layer deposition possesses the ability to induce the formation of biological apatite

IF 5.7 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces Pub Date : 2024-11-07 DOI:10.1016/j.surfin.2024.105311

Aleksandra Seweryn , Bartlomiej S. Witkowski , Wojciech Wozniak , Krystyna Lawniczak-Jablonska , Anna Wolska , Marcin T. Klepka , Krzysztof Marycz , Marek Godlewski

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Abstract

The research explored the spontaneous formation of the BAp precursor on surfaces of HfO₂ films obtained by Atomic Layer Deposition (ALD). It has been found that a careful selection of ALD growth conditions, followed by rapid thermal annealing (RTP) is crucial to achieve bioactivity of the films. Simulated Body Fluid experiment was used as a reliable test of the film's functionality as bone implant coating. SEM, XRD and XPS investigations proved that amorphous calcium orthophosphate structures were formed on the HfO₂ films. These structures are of importance for biomineralization of bones. Physical and chemical characterization of the films was an integral part of the research. Such approach allowed us to achieve biomaterial functionality while maintaining the films’ quality. The finding has significance for future progress in personalized traumatological medicine.

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通过原子层沉积获得的二氧化铪具有诱导形成生物磷灰石的能力

该研究探讨了通过原子层沉积（ALD）技术获得的二氧化铪薄膜表面自发形成的 BAp 前体。研究发现，精心选择 ALD 生长条件，然后进行快速热退火 (RTP) 是实现薄膜生物活性的关键。模拟体液实验是对薄膜作为骨植入涂层功能的可靠测试。扫描电子显微镜、X射线衍射和 XPS 研究证明，在 HfO2 薄膜上形成了无定形的正磷酸钙结构。这些结构对骨骼的生物矿化非常重要。对薄膜进行物理和化学表征是这项研究不可分割的一部分。这种方法使我们能够在保持薄膜质量的同时实现生物材料的功能。这一发现对未来个性化创伤医学的发展具有重要意义。

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来源期刊

Surfaces and Interfaces Chemistry-General Chemistry

CiteScore

8.50

自引率

6.50%

发文量

753

审稿时长

35 days

期刊介绍： The aim of the journal is to provide a respectful outlet for ''sound science'' papers in all research areas on surfaces and interfaces. We define sound science papers as papers that describe new and well-executed research, but that do not necessarily provide brand new insights or are merely a description of research results. Surfaces and Interfaces publishes research papers in all fields of surface science which may not always find the right home on first submission to our Elsevier sister journals (Applied Surface, Surface and Coatings Technology, Thin Solid Films)