Synthesis of Titanium Oxide Nanotubes Loaded with Hydroxyapatite

Nahum, Elinor Zadkani; Lugovskoy, Alex; Lugovskoy, Svetlana; Sobolev, Alexander

doi:10.3390/nano13202743

Cited by 16 publications

(6 citation statements)

References 47 publications

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“…Before experimentation, the samples were cleaned, degreased with acetone, and dried on air. After this, the samples’ surfaces underwent electropolishing [ 27 ] using a mixture (9:1) of concentrated acetic acid (CH 3 COOH) and perchloric acid (HClO₄) (Rhenium, Modi’in-Maccabim-Re’ut, Israel). Polishing was performed using a pulsed power supply (MP2-AS 35, Magpulls, Sinzheim, Germany) with a pulse length of 10 s at 40 V and 60 V. The total process time duration was 5 min at a temperature of 25 °C, with continuous stirring at 300 rpm.…”

Section: Methodsmentioning

confidence: 99%

Surface Properties of Ti65Zr Alloy Modified with TiZr Oxide and Hydroxyapatite

Nahum,

Lugovskoy,

Lugovskoy

et al. 2023

Nanomaterials

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Titanium-zirconium dioxide nanostructures loaded by hydroxyapatite were produced on the surface of Ti65Zr alloy. The alloy was treated by anodization with the subsequent immersion in calcium glycerophosphate (CG) solutions. The resulting surfaces present TiO2-ZrO2 nanotubular (TiZr-NT) structures enriched with hydroxyapatite (HAP). The nanotube texture is expected to enhance the surface’s corrosion resistance and promote integration with bone tissue in dental implants. The TiZr-NT structure had a diameter of 73 ± 2.2 nm and a length of 10.1 ± 0.5 μm. The most favorable result for the growth of HAP in Hanks’ balanced salt solution (Hanks’ BSS) was obtained at a CG concentration of 0.5 g/L. Samples soaked in CG at a concentration of 0.5 g/L demonstrated in a decrease of the contact angles to 25.2°; after 3 days of exposure to Hanks’ BSS, the contact angles further reduced to 18.5°. The corrosion studies also showed that the TiZr-NT structure soaked in the CG = 0.5 g/L solution exhibited the best corrosion stability.

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Section: Methodsmentioning

confidence: 99%

Surface Properties of Ti65Zr Alloy Modified with TiZr Oxide and Hydroxyapatite

Nahum,

Lugovskoy,

Lugovskoy

et al. 2023

Nanomaterials

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“…The fitting data of the EEC model confirmed the enhanced corrosion resistance of the proposed laser-chemical surface treatment. To further quantify the anti-corrosion capability of specimens under a corrosive condition, the variation in surface structure, chemistry, and wettability of specimens was examined while referring to previous work [53]. As shown in Figure 8a,b, a large number of black corrosion pits was observed on the untreated and SHL-150 µm specimens.…”

Section: Corrosion Resistancementioning

confidence: 99%

Laser–Chemical Surface Treatment for Enhanced Anti-Corrosion and Antibacterial Properties of Magnesium Alloy

Xiong,

Fu,

Liu

et al. 2024

Coatings

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Magnesium (Mg) alloy with good biomechanical and biocompatible properties is considered to be a promising biodegradable material for various applications. However, Mg alloy that is chemically active tends to be corroded in a physiological environment. In this work, we proposed a laser–chemical surface treatment to combine laser surface structuring and stearic immersion treatment to enhance the anti-corrosion and antibacterial properties of Mg alloy. The effects of surface structuring, chemistry, and wettability were analyzed, and the performance of the proposed technique was evaluated in terms of corrosion resistance and antibacterial properties. The experiments showed the following: (1) surface structuring by laser-induced dual-scale micro/nanostructures produced superhydrophilicity, with a water contact angle (WCA) of 0° on the surface of the Mg alloy; (2) applying the stearic acid immersion changed the chemistry of the Mg alloy’s surface and thus facilitated the wettability transition to superhydrophobicity, with a WCA of 160.1° ± 0.5°; (3) the proposed laser–chemical surface treatment enhanced corrosion resistance and stabilized the wettability of Mg alloy in a corrosive medium significantly; and (4) the proposed laser–chemical surface treatment enhanced the antibacterial properties of the Mg alloy greatly, with an improved antibacterial rate as high as 82.05%. This work proved that the proposed laser–chemical surface treatment was a simple, effective, and efficient technique to modulate and control the wettability and further improve the anti-corrosion and antibacterial properties of the Mg alloy.

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“…The biodegrada tion rate was estimated to be about ≈20% volume after 4 weeks. A protective coating for magnesium alloys can improve their corrosion resistance [80,81], and additive manufacturing techniques, such as laser powder bed fusion (LPBF), have been explored for this purpose [82,83]. One study developed a magnesium-aluminum alloy (Mg-10.6Al-0.6Zn-0.3Mn) with a record low degradation rate among all magnesium alloys, even withstanding seawater corrosion [82].…”

Section: Magnesium and Its Alloysmentioning

confidence: 99%

Corrosion and Wear Behavior of Additively Manufactured Metallic Parts in Biomedical Applications

Wei,

Attarilar,

Ebrahimi

et al. 2024

Metals

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Today, parts made by additive manufacturing (AM) methods have found many applications in the medical industry, the main reasons for which are the ability to custom design and manufacture complex structures, their short production cycle, their ease of utilization, and on-site fabrication, leading to the fabrication of next-generation intricate patient-specific biomedical implants. These parts should fulfill numerous requirements, such as having acceptable mechanical strength, biocompatibility, satisfactory surface characteristics, and excellent corrosion and wear performance. It was known that AM techniques may lead to some uncertainties influencing part properties and causing significant evaluation conflicts in corrosion outcomes. Meanwhile, the corrosion and wear behavior of additively manufactured materials are not comprehensively discussed. In this regard, the present work is a review of the state-of-the-art knowledge dedicated to reviewing the actual scientific knowledge about the corrosion and wear response of additively manufactured biomedical components, elucidating the relevant mechanism and influential factors to enhance the performance of AM-manufactured implants specifically for the physiological human body fluids. Furthermore, there is a focus on the use of reinforced composites, surface engineering, and a preparation stage that can considerably affect the tribocorrosion behavior of AM-produced parts. The improvement of tribocorrosion performance can have a key role in the production of advanced AM implants and the present study can pave the way toward facile production of high-throughput AM biomedical parts that have very high resistance to corrosion and wear.

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Synthesis of Titanium Oxide Nanotubes Loaded with Hydroxyapatite

Cited by 16 publications

References 47 publications

Surface Properties of Ti65Zr Alloy Modified with TiZr Oxide and Hydroxyapatite

Surface Properties of Ti65Zr Alloy Modified with TiZr Oxide and Hydroxyapatite

Laser–Chemical Surface Treatment for Enhanced Anti-Corrosion and Antibacterial Properties of Magnesium Alloy

Corrosion and Wear Behavior of Additively Manufactured Metallic Parts in Biomedical Applications

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