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Wu Y, Wang F, Huang Y, Zheng F, Zeng Y, Lu Z, Wang S, Sun B, Sun Y. A tantalum-containing zirconium-based metallic glass with superior endosseous implant relevant properties. Bioact Mater 2024; 39:25-40. [PMID: 38800719 PMCID: PMC11126771 DOI: 10.1016/j.bioactmat.2024.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 03/28/2024] [Accepted: 04/14/2024] [Indexed: 05/29/2024] Open
Abstract
Zirconium-based metallic glasses (Zr-MGs) are demonstrated to exhibit high mechanical strength, low elastic modulus and excellent biocompatibility, making them promising materials for endosseous implants. Meanwhile, tantalum (Ta) is also well known for its ideal corrosion resistance and biological effects. However, the metal has an elastic modulus as high as 186 GPa which is not comparable to the natural bone (10-30 GPa), and it also has a relative high cost. Here, to fully exploit the advantages of Ta as endosseous implants, a small amount of Ta (as low as 3 at. %) was successfully added into a Zr-MG to generate an advanced functional endosseous implant, Zr58Cu25Al14Ta3 MG, with superior comprehensive properties. Upon carefully dissecting the atomic structure and surface chemistry, the results show that amorphization of Ta enables the uniform distribution in material surface, leading to a significantly improved chemical stability and extensive material-cell contact regulation. Systematical analyses on the immunological, angiogenesis and osteogenesis capability of the material are carried out utilizing the next-generation sequencing, revealing that Zr58Cu25Al14Ta3 MG can regulate angiogenesis through VEGF signaling pathway and osteogenesis via BMP signaling pathway. Animal experiment further confirms a sound osseointegration of Zr58Cu25Al14Ta3 MG in achieving better bone-implant-contact and inducing faster peri-implant bone formation.
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Affiliation(s)
- Yunshu Wu
- Center of Digital Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, China
- National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, 100081, China
- Beijing Key Laboratory of Digital Stomatology, Beijing, 100081, China
- Beijing Laboratory of Oral Health, Capital Medical University, Beijing, 100069, China
| | - Feifei Wang
- Center of Digital Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, China
- National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, 100081, China
- Beijing Key Laboratory of Digital Stomatology, Beijing, 100081, China
| | - Yao Huang
- Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Fu Zheng
- National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, 100081, China
- Beijing Key Laboratory of Digital Stomatology, Beijing, 100081, China
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, 100081, China
| | - Yuhao Zeng
- Center of Digital Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, China
- National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, 100081, China
- Beijing Key Laboratory of Digital Stomatology, Beijing, 100081, China
| | - Zhen Lu
- Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Songlin Wang
- Beijing Laboratory of Oral Health, Capital Medical University, Beijing, 100069, China
- Laboratory of Homeostatic Medicine, School of Medicine, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Baoan Sun
- Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Yuchun Sun
- Center of Digital Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, China
- National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, 100081, China
- Beijing Key Laboratory of Digital Stomatology, Beijing, 100081, China
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Chopra D, Guo T, Gulati K, Ivanovski S. Load, unload and repeat: Understanding the mechanical characteristics of zirconia in dentistry. Dent Mater 2024; 40:e1-e17. [PMID: 37891132 DOI: 10.1016/j.dental.2023.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 09/11/2023] [Accepted: 10/05/2023] [Indexed: 10/29/2023]
Abstract
OBJECTIVES Zirconia-based dental restorations and implants are gaining attention due to their bioactivity, corrosion resistance and mechanical stability. Further, surface modification of zirconia implants has been performed at the macro-, micro- and nanoscale to augment bioactivity. While zirconia's physical and chemical characteristics have been documented, its relation to mechanical performance still needs to be explored. This extensive review aims to address this knowledge gap. METHODS This review critically compares and contrasts the findings from articles published in the domain of 'mechanical stability of zirconia\ in dentistry' based on a literature survey (Web of Science, Medline/PubMed and Scopus databases) and a review of the relevant publications in international peer-reviewed journals. Reviewing the published data, the mechanical properties of zirconia, such as fracture resistance, stress/tension, flexural strength, fatigue, and wear are detailed and discussed to understand the biomechanical compatibility of zirconia with the mechanical performance of modified zirconia in dentistry also explored. RESULTS A comprehensive insight into dental zirconia's critical fundamental mechanical characteristics and performance is presented. Further, research challenges and future directions in this domain are recommended. SIGNIFICANCE This review extends existing knowledge of zirconia's biomechanical performance and it they can be modulated to design the next generation of zirconia dental restorations and implants to withstand long-term constant loading.
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Affiliation(s)
- Divya Chopra
- The University of Queensland, School of Dentistry, Herston, QLD 4006, Australia; Centre for Orofacial Regeneration, Reconstruction and Rehabilitation (COR3), Herston, QLD 4006, Australia
| | - Tianqi Guo
- The University of Queensland, School of Dentistry, Herston, QLD 4006, Australia; Centre for Orofacial Regeneration, Reconstruction and Rehabilitation (COR3), Herston, QLD 4006, Australia
| | - Karan Gulati
- The University of Queensland, School of Dentistry, Herston, QLD 4006, Australia; Centre for Orofacial Regeneration, Reconstruction and Rehabilitation (COR3), Herston, QLD 4006, Australia.
| | - Sašo Ivanovski
- The University of Queensland, School of Dentistry, Herston, QLD 4006, Australia; Centre for Orofacial Regeneration, Reconstruction and Rehabilitation (COR3), Herston, QLD 4006, Australia.
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Mechanical properties and biocompatibility of a novel miniscrew made of Zr 70Ni 16Cu 6Al 8 bulk metallic glass for orthodontic anchorage. Sci Rep 2023; 13:3038. [PMID: 36810765 PMCID: PMC9943840 DOI: 10.1038/s41598-023-30102-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 02/15/2023] [Indexed: 02/23/2023] Open
Abstract
The purpose of the present study was to fabricate a miniscrew possible for clinical application using Zr70Ni16Cu6Al8 bulk metallic glass (BMG), which has high mechanical strength, low elastic modulus, and high biocompatibility. First, the elastic moduli of Zr-based metallic glass rods made of Zr55Ni5Cu30Al10, Zr60Ni10Cu20Al10, Zr65Ni10Cu17.5Al7.5, Zr68Ni12Cu12Al8, and Zr70Ni16Cu6Al8 were measured. Zr70Ni16Cu6Al8 had the lowest elastic modulus among them. Then, we fabricated Zr70Ni16Cu6Al8 BMG miniscrews with diameters from 0.9 to 1.3 mm, conducted a torsion test, and implanted them into the alveolar bone of beagle dogs to compare insertion torque, removal torque, Periotest, new bone formation around the miniscrew, and failure rate compared with 1.3 mm diameter Ti-6Al-4 V miniscrew. The Zr70Ni16Cu6Al8 BMG miniscrew exhibited a high torsion torque even if the miniscrew had a small diameter. Zr70Ni16Cu6Al8 BMG miniscrews with a diameter of 1.1 mm or less had higher stability and lower failure rate than 1.3 mm diameter Ti-6Al-4 V miniscrews. Furthermore, the smaller diameter Zr70Ni16Cu6Al8 BMG miniscrew was shown, for the first time, to have a higher success rate and to form more new bone around the miniscrew. These findings suggested the usefulness of our novel small miniscrew made of Zr70Ni16Cu6Al8 BMG for orthodontic anchorage.
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Biały M, Hasiak M, Łaszcz A. Review on Biocompatibility and Prospect Biomedical Applications of Novel Functional Metallic Glasses. J Funct Biomater 2022; 13:jfb13040245. [PMID: 36412886 PMCID: PMC9680474 DOI: 10.3390/jfb13040245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/10/2022] [Accepted: 11/13/2022] [Indexed: 11/17/2022] Open
Abstract
The continuous development of novel materials for biomedical applications is resulting in an increasingly better prognosis for patients. The application of more advanced materials relates to fewer complications and a desirable higher percentage of successful treatments. New, innovative materials being considered for biomedical applications are metallic alloys with an amorphous internal structure called metallic glasses. They are currently in a dynamic phase of development both in terms of formulating new chemical compositions and testing their properties in terms of intended biocompatibility. This review article intends to synthesize the latest research results in the field of biocompatible metallic glasses to create a more coherent picture of these materials. It summarizes and discusses the most recent findings in the areas of mechanical properties, corrosion resistance, in vitro cellular studies, antibacterial properties, and in vivo animal studies. Results are collected mainly for the most popular metallic glasses manufactured as thin films, coatings, and in bulk form. Considered materials include alloys based on zirconium and titanium, as well as new promising ones based on magnesium, tantalum, and palladium. From the properties of the examined metallic glasses, possible areas of application and further research directions to fill existing gaps are proposed.
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Zhang X, Li Y, Luo X, Ding Y. Enhancing antibacterial property of porous titanium surfaces with silver nanoparticles coatings via electron-beam evaporation. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2022; 33:57. [PMID: 35737197 PMCID: PMC9226093 DOI: 10.1007/s10856-022-06679-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 06/07/2022] [Indexed: 06/15/2023]
Abstract
Antibacterial activity is one of the most vital characteristics for Titanium (Ti) dental implants. Coating antibacterial material onto Ti surfaces is an effective approach to enhance their intrinsic antibacterial ability. However, a cost-effective but efficient coating strategy for realizing this objective still remains challenging. In this study, we proposed a novel implant surface modification strategy for coating silver nanoparticles onto the porous Ti surface via a facile electron beam evaporation (EBE) approach. Porous Ti surfaces were firstly prepared by sand-blasting large grit acid-etching (SLA) process. Then, the silver nanoparticles coating thickness on the porous Ti surface was adjusted and optimized by altering the duration of EBE process. Consequently, composite porous Ti surfaces with different silver thicknesses were synthesized. Polished Ti (PT) surface without SLA or EBE process was also prepared as the controlled blank group. The surface characterizations were analyzed by SEM, AFM, and XPS. After that, the antibacterial properties of all groups were tested with bacteria counting method, bacterial viability test, live/dead bacterial staining, and SEM examination. Results show that silver nanoparticles were uniformly distributed on the porous Ti surfaces after the SLA and EBE processes. After being incorporated with silver nanoparticles, the composite surfaces successfully inhibited the growth of Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). The antibacterial ratio (AR) values of SLA-Ag groups increased with the increasing silver thickness and are significantly higher than those of PT and SLA groups. Therefore, by the SLA and EBE processes, the composite porous Ti surfaces modified with silver nanoparticles coatings demonstrate superior antibacterial property compared with pure Ti surfaces, which is highly promising for enhancing the antibacterial functions of dental implants. Graphical abstract.
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Affiliation(s)
- Xiaoyu Zhang
- School of Energy and Power Engineering, Huazhong University of Science and Technology, 430074, Wuhan, China
| | - Yaoxu Li
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430022, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, 430030, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, 430022, Wuhan, China
| | - Xiaobing Luo
- School of Energy and Power Engineering, Huazhong University of Science and Technology, 430074, Wuhan, China
| | - Yumei Ding
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430022, Wuhan, China.
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, 430030, Wuhan, China.
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, 430022, Wuhan, China.
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Sun K, Fu R, Liu X, Xu L, Wang G, Chen S, Zhai Q, Pauly S. Osteogenesis and angiogenesis of a bulk metallic glass for biomedical implants. Bioact Mater 2022; 8:253-266. [PMID: 34541400 PMCID: PMC8424448 DOI: 10.1016/j.bioactmat.2021.06.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 06/05/2021] [Accepted: 06/11/2021] [Indexed: 12/12/2022] Open
Abstract
Implantation is an essential issue in orthopedic surgery. Bulk metallic glasses (BMGs), as a kind of novel materials, attract lots of attentions in biological field owing to their comprehensive excellent properties. Here, we show that a Zr61Ti2Cu25Al12 (at. %) BMG (Zr-based BMG) displays the best cytocompatibility, pronounced positive effects on cellular migration, and tube formation from in-vitro tests as compared to those of commercial-pure titanium and poly-ether-ether-ketone. The in-vivo micro-CT and histological evaluation demonstrate the Zr-based BMG can significantly promote a bone formation. Immunofluorescence tests and digital reconstructed radiographs manifest a stimulated effect on early blood vessel formation from the Zr-based BMG. Accordingly, the intimate connection and coupling effect between angiogenesis and osteogenesis must be effective during bone regeneration after implanting Zr-based BMG. Dynamic gait analysis in rats after implanting Zr-based BMG demonstrates a tendency to decrease the pain level during recovery, simultaneously, without abnormal ionic accumulation and inflammatory reactions. Considering suitable mechanical properties, we provide a realistic candidate of the Zr61Ti2Cu25Al12 BMG for biomedical applications.
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Affiliation(s)
- K. Sun
- Institute of Materials, Shanghai University, Shanghai, 200444, China
| | - R. Fu
- Department of Neurology, Tongren Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200336, China
| | - X.W. Liu
- Sports Medicine Department of Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - L.M. Xu
- Institute of Materials, Shanghai University, Shanghai, 200444, China
| | - G. Wang
- Institute of Materials, Shanghai University, Shanghai, 200444, China
| | - S.Y. Chen
- Sports Medicine Department of Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Q.J. Zhai
- Institute of Materials, Shanghai University, Shanghai, 200444, China
| | - S. Pauly
- University of Applied Sciences Aschaffenburg, Würzburger Straße 45, D-63743, Aschaffenburg, Germany
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7
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Fairag R, Li L, Ramirez-GarciaLuna JL, Taylor MS, Gaerke B, Weber MH, Rosenzweig DH, Haglund L. A Composite Lactide-Mineral 3D-Printed Scaffold for Bone Repair and Regeneration. Front Cell Dev Biol 2021; 9:654518. [PMID: 34307346 PMCID: PMC8299729 DOI: 10.3389/fcell.2021.654518] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 06/21/2021] [Indexed: 01/08/2023] Open
Abstract
Orthopedic tumor resection, trauma, or degenerative disease surgeries can result in large bone defects and often require bone grafting. However, standard autologous bone grafting has been associated with donor site morbidity and/or limited quantity. As an alternate, allografts with or without metallic or polyether-etherketone have been used as grafting substitutes. However, these may have drawbacks as well, including stress shielding, pseudarthrosis, disease-transmission, and infection. There is therefore a need for alternative bone substitutes, such as the use of mechanically compliant three-dimensional (3D)-printed scaffolds. Several off-the-shelf materials are available for low-cost fused deposition 3D printing such as polylactic acid (PLA) and polycaprolactone (PCL). We have previously described the feasibility of 3D-printed PLA scaffolds to support cell activity and extracellular matrix deposition. In this study, we investigate two medical-grade filaments consistent with specifications found in American Society for Testing and Materials (ASTM) standard for semi-crystalline polylactide polymers for surgical implants, a pure polymer (100M) and a copolymeric material (7415) for their cytocompatibility and suitability in bone tissue engineering. Moreover, we assessed the impact on osteo-inductive properties with the addition of beta-tricalcium phosphate (β-TCP) minerals and assessed their mechanical properties. 100M and 7415 scaffolds with the additive β-TCP demonstrated superior mesenchymal stem cells (MSCs) differentiation detected via increased alkaline phosphatase activity (6-fold and 1.5-fold, respectively) and mineralized matrix deposition (14-fold and 5-fold, respectively) in vitro. Furthermore, we evaluated in vivo compatibility, biosafety and bone repair potential in a rat femur window defect model. 100M+β -TCP implants displayed a positive biosafety profile and showed significantly enhanced new bone formation compared to 100M implants evidenced by μCT (39 versus 25% bone volume/tissue volume ratio) and histological analysis 6 weeks post-implantation. These scaffolds are encouraging composite biomaterials for repairing bone applications with a great potential for clinical translation. Further analyses are required with appropriate evaluation in a larger critical-sized defect animal model with long-term follow-up.
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Affiliation(s)
- Rayan Fairag
- Department of Surgery, Division of Orthopaedic Surgery, McGill University, Montreal, QC, Canada
- Research Institute of McGill University Health Center, Montreal General Hospital, Montreal, QC, Canada
- Department of Orthopedic Surgery, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Li Li
- Department of Surgery, Division of Orthopaedic Surgery, McGill University, Montreal, QC, Canada
- Research Institute of McGill University Health Center, Montreal General Hospital, Montreal, QC, Canada
| | | | | | | | - Michael H. Weber
- Department of Surgery, Division of Orthopaedic Surgery, McGill University, Montreal, QC, Canada
- Research Institute of McGill University Health Center, Montreal General Hospital, Montreal, QC, Canada
| | - Derek H. Rosenzweig
- Department of Surgery, Division of Orthopaedic Surgery, McGill University, Montreal, QC, Canada
- Research Institute of McGill University Health Center, Montreal General Hospital, Montreal, QC, Canada
| | - Lisbet Haglund
- Department of Surgery, Division of Orthopaedic Surgery, McGill University, Montreal, QC, Canada
- Research Institute of McGill University Health Center, Montreal General Hospital, Montreal, QC, Canada
- Shriners Hospital for Children, Montreal, QC, Canada
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Loye AM, Kwon HK, Dellal D, Ojeda R, Lee S, Davis R, Nagle N, Doukas PG, Schroers J, Lee FY, Kyriakides TR. Biocompatibility of platinum-based bulk metallic glass in orthopedic applications. Biomed Mater 2021; 16. [PMID: 33873168 DOI: 10.1088/1748-605x/abf981] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 04/19/2021] [Indexed: 01/19/2023]
Abstract
Bulk metallic glasses (BMGs) are a class of amorphous metals that exhibit high strength, ductility paired with wear and corrosion resistance. These properties suggest that they could serve as an alternative to conventional metallic implants that suffer wear and failure. In the present study, we investigated Platinum (Pt)-BMG biocompatibility in bone applications. Specifically, we investigated osteoclast formation on flat and nanopatterned Pt57.5Cu14.7Ni5.3P22.5(atomic percent) as well as titanium (control). Specifically, receptor activator of NF-κB (RANK) ligand-induced murine bone marrow derived mononuclear cell fusion was measured on multiple nanopatterns and was found to be reduced on nanorods (80 and 200 nm in diameter) and was associated with reduced tartrate-resistant acid phosphatase (TRAP) and matrix metalloproteinase (MMP9) expression. Evaluation of mesenchymal stem cell (MSC) to osteoblast differentiation on nanopatterned Pt-BMG showed significant reduction in comparison to flat, suggesting that further exploration of nanopatterns is required to have simultaneous induction of osteoblasts and inhibition of osteoclasts.Invivo studies were also pursued to evaluate the biocompatibility of Pt-BMG in comparison to titanium. Rods of each material were implanted in the femurs of mice and evaluated by x-ray, mechanical testing, micro-computed tomography (micro-CT), and histological analysis. Overall, Pt-BMG showed similar biocompatibility with titanium suggesting that it has the potential to improve outcomes by further processing at the nanoscale.
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Affiliation(s)
- Ayomiposi M Loye
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520, United States of America
| | - Hyuk-Kwon Kwon
- Department of Orthopaedics and Rehabilitation, Yale University, New Haven, CT 06520, United States of America
| | - David Dellal
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520, United States of America
| | - Rodrigo Ojeda
- Department of Mechanical Engineering and Materials Science, Yale University, New Haven, CT 06520, United States of America
| | - Sangmin Lee
- Department of Pathology, Yale University, P.O. Box 208089, New Haven, CT 06520, United States of America
| | - Rose Davis
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, CT 06520, United States of America
| | - Natalie Nagle
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520, United States of America
| | - Panagiotis G Doukas
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520, United States of America
| | - Jan Schroers
- Department of Mechanical Engineering and Materials Science, Yale University, New Haven, CT 06520, United States of America
| | - Francis Y Lee
- Department of Orthopaedics and Rehabilitation, Yale University, New Haven, CT 06520, United States of America
| | - Themis R Kyriakides
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520, United States of America.,Department of Pathology, Yale University, P.O. Box 208089, New Haven, CT 06520, United States of America
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Wei C, Luo L, Wu Z, Zhang J, Su S, Zhan Y. New Zr-25Ti-xMo alloys for dental implant application: Properties characterization and surface analysis. J Mech Behav Biomed Mater 2020; 111:104017. [PMID: 32818772 DOI: 10.1016/j.jmbbm.2020.104017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/26/2020] [Accepted: 07/27/2020] [Indexed: 11/24/2022]
Abstract
A series of Zr-25Ti-xMo (x = 0, 2.5, 5, 7.5, 10 and 12.5 wt %) as-cast alloys were designed to advance a new-brand Zr-based alloy with low Young's elastic, moderate compression strength, superior corrosion resistance and good wear behavior for the application of dental implant materials. In the present study, the microstructures of the alloys were evaluated by X-ray diffraction, scanning electron microscopy and X-ray photoelectron spectroscopy. The microhardness and uniaxial compression measurement were performed to evaluate the mechanical properties of the alloys. The electrochemical behaviors of the alloys was investigated in artificial saliva solution. The friction and wear performances of the Zr-25Ti-xMo alloys were examined by pin-on-disk under the load of 15 N. The results shows that the crystalline structure transforms from hexagonal close-pack (α phase, x = 0 wt %) to body-centered cubic structure (β phase, 5 ≤ x ≤ 12.5 wt %) through a α + β dual-phase region (x = 2.5 wt %). They exhibits excellent mechanical properties with low elastic modulus (from 17.7 to 24.4 GPa) and moderate compression strength (from 1154.4 to 1310.8 MPa). The Zr-25Ti-xMo alloys possess good corrosion resistance due to the formation of a protective passive film consisting mainly of ZrO2, TiO2 and minor MoO3. Especially, the polarization curves demonstrates that the Zr-25Ti-7.5Mo alloy has a wider passive region than the other five alloys and it possesses the lower corrosion current density and corrosion rate. Furthermore, this alloy exhibits good abrasion resistance with the lowest coefficients of friction and volume wear loss. Thus, the Zr-25Ti-7.5Mo alloy has a combination of excellent mechanical properties such as low elastic modulus, moderate yield strength and the compression strength, good electrochemical stability and well wear resistance, it is considered a promising candidate for orthopedic materials as dental implant.
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Affiliation(s)
- Chengxia Wei
- School of Resources, Environment and Materials, Guangxi University, Nanning, Guangxi, 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metal and Featured Materials, Guangxi University, Nanning, Guangxi, 530004, China; Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518000, China
| | - Liying Luo
- School of Resources, Environment and Materials, Guangxi University, Nanning, Guangxi, 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metal and Featured Materials, Guangxi University, Nanning, Guangxi, 530004, China
| | - Zhangxi Wu
- School of Resources, Environment and Materials, Guangxi University, Nanning, Guangxi, 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metal and Featured Materials, Guangxi University, Nanning, Guangxi, 530004, China
| | - Jiakai Zhang
- School of Resources, Environment and Materials, Guangxi University, Nanning, Guangxi, 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metal and Featured Materials, Guangxi University, Nanning, Guangxi, 530004, China
| | - Shi Su
- School of Resources, Environment and Materials, Guangxi University, Nanning, Guangxi, 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metal and Featured Materials, Guangxi University, Nanning, Guangxi, 530004, China
| | - Yongzhong Zhan
- School of Resources, Environment and Materials, Guangxi University, Nanning, Guangxi, 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metal and Featured Materials, Guangxi University, Nanning, Guangxi, 530004, China.
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Ductile Zr-Based Bulk Metallic Glasses by Controlling Heterogeneous Microstructure from Phase Competition Strategy. NANOMATERIALS 2019; 9:nano9121728. [PMID: 31817045 PMCID: PMC6955685 DOI: 10.3390/nano9121728] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 11/30/2019] [Accepted: 12/02/2019] [Indexed: 11/17/2022]
Abstract
In this paper, we prepare the alloys of Zr41.2Ti13.8Cu12.5Ni10Be22.5, Zr44.4Ti14.8Cu14.3Ni11.5Be15, and Zr38Ti12.7Cu9.6Ni7.7Be32 to show the effects of alloy composition on the inhomogeneity structures and mechanical properties of Zr-based bulk metallic glasses (BMGs). Compared with the best glass former Zr41.2Ti13.8Cu12.5Ni10Be22.5, some nanoscale inhomogeneity structures can be induced by shifting the compositions towards a primary phase in the alloys of Zr44.4Ti14.8Cu14.3Ni11.5Be15 and Zr38Ti12.7Cu9.6Ni7.7Be32. The room temperature compression tests reveal that theBMGs contained nanoscale inhomogeneity structures exhibit superior mechanical properties with the high strength of 1780 MPa and especially a remarkable plastic strain of over 9%. These findings provide a new perspective to enhance the ductility of BMGs by introducing nanoscale inhomogeneity structures based on the phase competition strategy.
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Li D, Li Y, Shrestha A, Wang S, Wu Q, Li L, Guan C, Wang C, Fu T, Liu W, Huang Y, Ji P, Chen T. Effects of Programmed Local Delivery from a Micro/Nano-Hierarchical Surface on Titanium Implant on Infection Clearance and Osteogenic Induction in an Infected Bone Defect. Adv Healthc Mater 2019; 8:e1900002. [PMID: 30985090 DOI: 10.1002/adhm.201900002] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Revised: 03/24/2019] [Indexed: 02/05/2023]
Abstract
The two major causes for implant failure are postoperative infection and poor osteogenesis. Initial period of osteointegration is regulated by immunocytes and osteogenic-related cells resulting in inflammatory response and tissue healing. The healing phase can be influenced by various environmental factors and biological cascade effect. To synthetically orchestrate bone-promoting factors on biomaterial surface, built is a dual delivery system coated on a titanium surface (abbreviated as AH-Sr-AgNPs). The results show that this programmed delivery system can release Ag+ and Sr2+ in a temporal-spatial manner to clear pathogens and activate preosteoblast differentiation partially through manipulating the polarization of macrophages. Both in vitro and in vivo assays show that AH-Sr-AgNPs-modified surface renders a microenvironment adverse for bacterial survival and favorable for macrophage polarization (M2), which further promotes the differentiation of preosteoblasts. Infected New Zealand rabbit femoral metaphysis defect model is used to confirm the osteogenic property of AH-Sr-AgNPs implants through micro-CT, histological, and histomorphometric analyses. These findings demonstrate that the programmed surface with dual delivery of Sr2+ and Ag+ has the potential of achieving an enhanced osteogenic outcome through favorable immunoregulation.
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Affiliation(s)
- Dize Li
- Stomatological Hospital of Chongqing Medical UniversityChongqing Key Laboratory of Oral Diseases and Biomedical SciencesChongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education Chongqing 401147 P. R. China
| | - Yihan Li
- Stomatological Hospital of Chongqing Medical UniversityChongqing Key Laboratory of Oral Diseases and Biomedical SciencesChongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education Chongqing 401147 P. R. China
| | - Annie Shrestha
- Faculty of DentistryUniversity of Toronto Toronto ON M5G 1G6 Canada
| | - Si Wang
- Stomatological Hospital of Chongqing Medical UniversityChongqing Key Laboratory of Oral Diseases and Biomedical SciencesChongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education Chongqing 401147 P. R. China
| | - Qingqing Wu
- Stomatological Hospital of Chongqing Medical UniversityChongqing Key Laboratory of Oral Diseases and Biomedical SciencesChongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education Chongqing 401147 P. R. China
| | - Lingjie Li
- Stomatological Hospital of Chongqing Medical UniversityChongqing Key Laboratory of Oral Diseases and Biomedical SciencesChongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education Chongqing 401147 P. R. China
| | - Chao Guan
- Jiaxing Hospital of Traditional Chinese Medicine Jiaxing 314001 P. R. China
| | - Chao Wang
- Stomatological Hospital of Chongqing Medical UniversityChongqing Key Laboratory of Oral Diseases and Biomedical SciencesChongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education Chongqing 401147 P. R. China
| | - Tiwei Fu
- Stomatological Hospital of Chongqing Medical UniversityChongqing Key Laboratory of Oral Diseases and Biomedical SciencesChongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education Chongqing 401147 P. R. China
| | - Wenzhao Liu
- Stomatological Hospital of Chongqing Medical UniversityChongqing Key Laboratory of Oral Diseases and Biomedical SciencesChongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education Chongqing 401147 P. R. China
| | - Yuanding Huang
- Stomatological Hospital of Chongqing Medical UniversityChongqing Key Laboratory of Oral Diseases and Biomedical SciencesChongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education Chongqing 401147 P. R. China
| | - Ping Ji
- Stomatological Hospital of Chongqing Medical UniversityChongqing Key Laboratory of Oral Diseases and Biomedical SciencesChongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education Chongqing 401147 P. R. China
| | - Tao Chen
- Stomatological Hospital of Chongqing Medical UniversityChongqing Key Laboratory of Oral Diseases and Biomedical SciencesChongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education Chongqing 401147 P. R. China
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