Oxide ceramic femoral heads contribute to the oxidation of polyethylene liners in artificial hip joints

Pezzotti, Giuseppe; Zhu, Wenliang; Sugano, Nobuhiko; Marin, Elia; Yamamoto, Kenjiro; Nishiike, Naomichi; Hori, Tsubasa; Rondinella, Alfredo; McEntire, Bryan J.; Bock, Ryan M.; Bal, B. Sonny

doi:10.1016/j.jmbbm.2018.03.021

Cited by 9 publications

(4 citation statements)

References 36 publications

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“…Obviously, 1.75AB has a larger proportion of hydroxyl oxygen, indicating that Al 2 O 3 promotes the adsorption of water molecules, which is attributed to the increased active sites aroused by defective Al 2 O 3 . The Al 2p energy spectrum of pure Al 2 O 3 (Figure g) shows that the defective Al 2 O 3 has characteristic peaks at 73.6, 74.2, and 74.8 eV, corresponding to the signals of AlO x , O–Al–O, and O–Al–O v , respectively. Moreover, the O 1s spectrum of Al 2 O 3 (Figure h) reveals that the characteristic peaks at 531.6 and 530.5 eV correspond to oxygen vacancies and lattice oxygen, which further confirms the successful preparation of defective Al 2 O 3 .…”

Section: Resultsmentioning

confidence: 99%

Construction of Dual-Defective Al₂O₃/Bi1₂O₁₇Cl₂ Heterojunctions for Enhanced Photocatalytic Molecular Oxygen Activation via Defect Coupling and Charge Separation

Yue

et al. 2021

Ind. Eng. Chem. Res.

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Adjusting the surface/interface of photocatalysts to promote molecular oxygen activation is a valid way to ameliorate photocatalytic performance. In this work, dual-defective Al2O3/Bi12O17Cl2 heterostructured photocatalysts are in situ constructed using the ionic liquid self-combustion method. The electron paramagnetic resonance (EPR) test confirms the existence of oxygen vacancies in both Al2O3 and Bi12O17Cl2, and there is defect coupling enhancement effect after their combination. X-ray photoelectron spectroscopy (XPS) further reveals defect signals of AlO x and oxygen vacancies. The O2-temperature-programmed desorption (TPD) experiment shows that defective Al2O3 greatly enhances the adsorption of molecular oxygen. Moreover, diffuse reflectance spectrum (DRS), electrochemical tests, and Kelvin probes are implemented to confirm that the introduction of Al2O3 into Bi12O17Cl2 not only significantly enhances the separation efficiency as an active support but also promotes the defect amounts and molecular oxygen adsorption. Moreover, 1.75 Al2O3/Bi12O17Cl2 (molar ratio of A12O3 to Bi12O17Cl2 is 1.75) exhibits the highest photocatalytic oxidation capability, and its degradation performance for tetracycline hydrochloride is 1.49 times that of Bi12O17Cl2. This work reports the one-step synthesis of Al2O3 and Bi12O17Cl2 with oxygen vacancies, discovers the synergetic enhancement of defects, and reveals the dual-functional roles of defective Al2O3 in strengthening molecular oxygen adsorption and charge separation.

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Section: Resultsmentioning

confidence: 99%

Construction of Dual-Defective Al₂O₃/Bi1₂O₁₇Cl₂ Heterojunctions for Enhanced Photocatalytic Molecular Oxygen Activation via Defect Coupling and Charge Separation

Yue

et al. 2021

Ind. Eng. Chem. Res.

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“…Furthermore, G. Pezzotti et al . revealed that the oxidation rate of polyethylene liners was greater when coupled with oxide as opposed to non-oxide ceramic heads [ 18 – 20 ]. And, in addition, J. Webster et al .…”

Section: Discussionmentioning

confidence: 99%

In vitro & in vivo investigation of the silicon nitride ceramic hip implant’s safety and effectiveness evaluation

Kong

Hu²,

Chai

2022

J Orthop Surg Res

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Background With regard to the ceramic hip joint implant, given the concerns in ceramic about the alumina brittleness and zirconia instability, is there any alternative material solution for the orthopedic implant? Beyond the metastable oxide ceramics, along the echelon of advanced technical ceramics, looking at the non-oxide ceramic, the silicon nitride could be an excellent candidate for the joint implant’s application. The purpose of this study is to investigate the safety, effectiveness and to demonstrate the potential of this silicon nitride hip implant. Methods According to the related ISO (International Organization for Standardization) standards, a series of in vitro (nine) & in vivo (five) tests, which had been accomplished for the aforementioned aim. Especially, the total hip replacement in pigs had been achieved, as per the authors’ knowledge, this is the first time to apply the THA (Total Hip Arthroplasty) in the big animal. Results Refer to the ISO 6474-2, in comparison with the current monopolized German product, this silicon nitride ceramic hip implant has high strength, high hardness, excellent fracture toughness, lower density, better wear resistance, good biocompatibility, inherent stability, corrosion resistance and bioactivity, bone integration capability. Conclusions This silicon nitride ceramic will be an admirable alternative solution with superior comprehensive property that can withstand the toughest conditions in the most demanding applications like in orthopedic and beyond.

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“…In this respect, beyond the metastable oxide ceramics, along the echelon of advanced technical ceramics, looking at, the non-oxide, real stable ceramic, the silicon nitride, its potential and advantages will be highlighted contrastively. Furthermore, G. Pezzotti et al revealed that the oxidation rate of polyethylene liners was greater when coupled with oxide as opposed to nonoxide ceramic heads[ 18, 19,20] . And in addition, J. Webster et al discovered the rst time that without the use of antibiotics, the bacteria colonization was reduced and bone formation was increased on the silicon nitride surface compared with titanium and PEEK[ 21,22,23] .…”

Section: Discussionmentioning

confidence: 99%

In-vitro & In-vivo Investigation of the Silicon Nitride Ceramic Hip Implant’s Safety and Effectiveness Evaluation

Kong

Chai

2021

Preprint

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Background: With regard to the ceramic hip joint implant, given the concerns in ceramic about the alumina brittleness and zirconia instability, is there any alternative material solution for the orthopaedic implant? Beyond the metastable oxide ceramics, along the echelon of advanced technical ceramics, looking at the non-oxide ceramic, the silicon nitride could be an excellent candidate for the joint implant’s application. The purpose of this study is to investigate the safety, effectiveness and to demonstrate the potential of this silicon nitride hip implant. Methods: According to the related ISO (International Organization for Standardization) standards, a series of in-vitro (nine) & in-vivo (five) tests, which had been accomplished for the aforementioned aim. Especially, the total hip replacement in pigs had been achieved, as per the authors’ knowledge, this is the first time to apply the THA (Total Hip Arthroplasty) in the big animal. Results: Refer to the ISO 6474-2, in comparison with the current monopolized German product, this silicon nitride ceramic hip implant has high strength, high hardness, excellent fracture toughness, lower density, better wear resistance, good biocompatibility, inherent stability, corrosion resistance and bioactivity, bone integration capability. Conclusions: This silicon nitride ceramic will be an admirable alternative solution with superior comprehensive property that can withstand the toughest conditions in the most demanding applications like in orthopedic and beyond.

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Oxide ceramic femoral heads contribute to the oxidation of polyethylene liners in artificial hip joints

Cited by 9 publications

References 36 publications

Construction of Dual-Defective Al₂O₃/Bi1₂O₁₇Cl₂ Heterojunctions for Enhanced Photocatalytic Molecular Oxygen Activation via Defect Coupling and Charge Separation

Construction of Dual-Defective Al₂O₃/Bi1₂O₁₇Cl₂ Heterojunctions for Enhanced Photocatalytic Molecular Oxygen Activation via Defect Coupling and Charge Separation

In vitro & in vivo investigation of the silicon nitride ceramic hip implant’s safety and effectiveness evaluation

In-vitro & In-vivo Investigation of the Silicon Nitride Ceramic Hip Implant’s Safety and Effectiveness Evaluation

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Oxide ceramic femoral heads contribute to the oxidation of polyethylene liners in artificial hip joints

Cited by 9 publications

References 36 publications

Construction of Dual-Defective Al2O3/Bi12O17Cl2 Heterojunctions for Enhanced Photocatalytic Molecular Oxygen Activation via Defect Coupling and Charge Separation

Construction of Dual-Defective Al2O3/Bi12O17Cl2 Heterojunctions for Enhanced Photocatalytic Molecular Oxygen Activation via Defect Coupling and Charge Separation

In vitro & in vivo investigation of the silicon nitride ceramic hip implant’s safety and effectiveness evaluation

In-vitro &amp; In-vivo Investigation of the Silicon Nitride Ceramic Hip Implant’s Safety and Effectiveness Evaluation

Contact Info

Product

Resources

About

Construction of Dual-Defective Al₂O₃/Bi1₂O₁₇Cl₂ Heterojunctions for Enhanced Photocatalytic Molecular Oxygen Activation via Defect Coupling and Charge Separation

Construction of Dual-Defective Al₂O₃/Bi1₂O₁₇Cl₂ Heterojunctions for Enhanced Photocatalytic Molecular Oxygen Activation via Defect Coupling and Charge Separation

In-vitro & In-vivo Investigation of the Silicon Nitride Ceramic Hip Implant’s Safety and Effectiveness Evaluation