Porous tantalum scaffolds: Fabrication, structure, properties, and orthopedic applications

Gao, Huijie; Yang, Jingzhou; Jin, Xia; Qu, Xinhua; Zhang, Faqiang; Zhang, Dachen; Chen, Haishen; Wei, Hui-Ling; Zhang, Shupei; Jia, Weitao; Yue, Bing; Li, Xiaopeng

doi:10.1016/j.matdes.2021.110095

Cited by 56 publications

(29 citation statements)

References 199 publications

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“…In another area of knowledge, MAO-treated Ta surfaces exhibit interesting properties for mechanical and corrosion applications, which are highly dependent on coating porosity [ 80 , 81 , 82 ]. A new material implant should be mechanical and corrosion-resistant [ 13 ].…”

Section: Ta 2 O 5 Surfaces For ...mentioning

confidence: 99%

“…Tantalum oxide (Ta 2 O 5 ) micro-structured coatings present interesting properties that make them suitable for a large range of applications. These coatings are used for storage capacitors and resistors in electronic [ 1 , 2 ] and microelectronic industries [ 1 , 3 , 4 ] because they show a high dielectric strength, high melting point and thermal stability [ 5 ], excellent corrosion [ 6 , 7 , 8 , 9 ], and abrasion resistance [ 10 ], which make them also a reliable option for biomedical instruments [ 6 , 7 , 11 , 12 , 13 , 14 ] and chemical equipment (e.g., optical devices) [ 15 ]. They are biocompatible [ 16 , 17 , 18 , 19 ] too, being a good option for bioengineering implants application [ 6 , 11 , 20 , 21 , 22 , 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

“…Micro-structured Ta 2 O 5 film can be produced by a wide number of techniques, including methods such as chemical solution deposition, such as sol–gel (e.g., [ 4 ]) and polymer-assisted deposition (e.g., [ 6 , 20 ]); physical vapor deposition, such as magnetron sputtering (e.g., [ 21 , 33 , 34 , 35 ]) and pulsed laser deposition (e.g., [ 3 ]); chemical vapor deposition (e.g., [ 13 , 22 ]); electrochemical-processes-anodization (e.g., [ 25 , 32 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 ]); and micro-arc oxidation (e.g., [ 23 ]). One of the most common electrochemical processes used for Ta 2 O 5 film production is anodization, which is a low-cost and industrialized technique, although it uses environmentally harmful chemicals [ 44 , 45 ].…”

Section: Introductionmentioning

confidence: 99%

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A Decade of Progress on MAO-Treated Tantalum Surfaces: Advances and Contributions for Biomedical Applications

2022

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Micro-structured coatings with functional properties have been investigated due to a wide range of applications. It is known that micro-structures can play an important role in surface interactions determining the materials’ performance. Amongst the other materials, there has been an increasing interest in tantalum oxide (Ta2O5). This attention is mainly due to its variety of properties: biocompatibility and bioactivity; high dielectric constant; good thermal and chemical stability; excellent corrosion and mechanical resistance. Moreover, there is a wide range of applications in which the properties can be fitted. Furthermore, according to the final application, these properties can be enhanced or tailored through surface micro-structures manipulation. Due to this purpose, over the past decade, Ta surface modification by micro-arc oxidation (MAO) has been investigated mostly for biomedical applications. Therefore, this review focuses on Ta surface functionalization using the MAO technique. A clear understanding of the micro-discharge phenomena and the formation mechanism of a Ta2O5 anodic coating by MAO is supplied. The Ta2O5 coating morphology, topography, chemistry, and structure are explored, establishing their correlation with the MAO parameters. Additionally, an understanding of Ta2O5’s biological, mechanical, and electrochemical properties is provided and reviewed.

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Section: Ta 2 O 5 Surfaces For ...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Decade of Progress on MAO-Treated Tantalum Surfaces: Advances and Contributions for Biomedical Applications

2022

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“…The advantages of porous structures are emphasized in more and more areas these days, e.g. : application to heat dissipating problems (Das and Sutradhar, 2020), grinding wheels (Li et al, 2021), tendon repair (Zhang et al, 2020), orthopaedics (Yu et al, 2020;Gao et al, 2021). In this paper, we work with models of porous structures which are made porous by cutting spheres according to the 3D patterns of different crystalline structures.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimal microstructure and mechanical properties of open-cell porous titanium structures produced by selective laser melting

Kulcsár

Buzgo²,

Costa³

et al. 2022

Front. Bioeng. Biotechnol.

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Three-dimensional printing technology enables the production of open cell porous structures. This has advantages but not only in terms of weight reduction. In implant structures, the process of osseointegration is improved, mechanical integration is better, the open cell porous structures resemble a trabecular structure that mimics bone tissue. In this work, we investigated titanium structures made porous by cutting spheres. Based on the patterns of different types of crystal models we created porosity with different strategies. We have shown that there are significant differences in mechanical properties between the porous structures formed with different strategies. We determined the structure that loses the least load-bearing capacity compared to the solid structure, with the same porosity levels and mechanical stresses. We characterized the possibility location and environment of becoming an open cell structure. We performed the calculations with mechanical simulations, which were validated experimentally. The quality of the three-dimensional printing of samples was checked by computed tomography reconstruction analysis.

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Metallic Materials for Bone Repair

Fan,

Chen,

Yang

et al. 2023

Adv Healthcare Materials

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Repair of large bone defects caused by trauma or disease poses significant clinical challenges. Extensive research has focused on metallic materials for bone repair because of their favorable mechanical properties, biocompatibility, and manufacturing processes. Traditional metallic materials, such as stainless steel and titanium alloys, are widely used in clinics. Biodegradable metallic materials, such as iron, magnesium, and zinc alloys, are promising candidates for bone repair because of their ability to degrade over time. Emerging metallic materials, such as porous tantalum and bismuth alloys, have gained attention as bone implants owing to their bone affinity and multifunctionality. However, these metallic materials encounter many practical difficulties that require urgent improvement. In this article, we systematically reviewed and analyzed the metallic materials used for bone repair, providing a comprehensive overview of their morphology, mechanical properties, biocompatibility, and in vivo implantation. Furthermore, we summarized the strategies and efforts made to address the short‐comings of metallic materials. Finally, we identified and discussed perspectives for the development of metallic materials to guide future research and advancements in clinical practice.This article is protected by copyright. All rights reserved

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Porous tantalum scaffolds: Fabrication, structure, properties, and orthopedic applications

Cited by 56 publications

References 199 publications

A Decade of Progress on MAO-Treated Tantalum Surfaces: Advances and Contributions for Biomedical Applications

A Decade of Progress on MAO-Treated Tantalum Surfaces: Advances and Contributions for Biomedical Applications

Optimal microstructure and mechanical properties of open-cell porous titanium structures produced by selective laser melting

Metallic Materials for Bone Repair

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