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Wang S, Zhang M, Liu L, Xu R, Huang Z, Shi Z, Liu J, Li Z, Li X, Hao P, Hao Y. Femtosecond laser treatment promotes the surface bioactivity and bone ingrowth of Ti6Al4V bone scaffolds. Front Bioeng Biotechnol 2022; 10:962483. [PMID: 36213066 PMCID: PMC9537346 DOI: 10.3389/fbioe.2022.962483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 08/26/2022] [Indexed: 12/05/2022] Open
Abstract
In this study, a femtosecond laser with a wavelength of 800 nm was used to modify the surface of a titanium alloy bone scaffold created via selective laser melting (SLM). The outcomes demonstrated that the surface morphology of the bone scaffold after femtosecond laser treatment was micro-nano morphology. The hydrophobic structure of the scaffold was changed into a super-hydrophilic structure, improving the surface roughness, which was highly helpful for osteoblast adhesion and differentiation. The femtosecond laser surface treatment in vitro samples produced a thick layer of hydroxyapatite (HAP) with improved surface bioactivity. The effectiveness of osseointegration and interstitial growth of the specimens treated with the femtosecond laser surface were found to be better when bone scaffolds were implanted into the epiphysis of the tibia of rabbits. As a result, femtosecond laser therapy dramatically enhanced the surface activity of bone scaffolds and their capacity to integrate with the surrounding bone tissues, serving as a trustworthy benchmark for future biological scaffold research.
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Affiliation(s)
- Su Wang
- School of Mechanical Engineering, Sichuan University, Chengdu, China
| | - Miao Zhang
- School of Mechanical Engineering, Sichuan University, Chengdu, China
- *Correspondence: Miao Zhang, ; Zhong Li, ; Xiaohong Li,
| | - Linlin Liu
- School of Mechanical Engineering, Sichuan University, Chengdu, China
| | - Rongwei Xu
- School of Mechanical Engineering, Sichuan University, Chengdu, China
| | - Zhili Huang
- School of Mechanical Engineering, Sichuan University, Chengdu, China
| | - Zhang’ao Shi
- School of Mechanical Engineering, Sichuan University, Chengdu, China
| | - Juncai Liu
- Department of Orthopaedics, The Affiliated Hospital of Southwest Medical University, Sichuan Provincial Laboratory of Orthopedics Engineering, Luzhou, China
| | - Zhong Li
- Department of Orthopaedics, The Affiliated Hospital of Southwest Medical University, Sichuan Provincial Laboratory of Orthopedics Engineering, Luzhou, China
- *Correspondence: Miao Zhang, ; Zhong Li, ; Xiaohong Li,
| | - Xiaohong Li
- School of Science, Southwest University of Science and Technology, Mianyang, China
- *Correspondence: Miao Zhang, ; Zhong Li, ; Xiaohong Li,
| | - Peng Hao
- Sichuan Provincial People’s Hospital, Chengdu, China
| | - Yongqiang Hao
- Department of Orthopedics Surgery, Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
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Zhu M, Zhang R, Mao Z, Fang J, Ren F. Topographical biointerface regulating cellular functions for bone tissue engineering. BIOSURFACE AND BIOTRIBOLOGY 2022. [DOI: 10.1049/bsb2.12043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Mingyu Zhu
- Department of Materials Science and Engineering Southern University of Science and Technology Shenzhen Guangdong China
| | - Rui Zhang
- Department of Prosthodontics Stomatology Center Peking University Shenzhen Hospital Shenzhen Guangdong China
| | - Zhixiang Mao
- Department of Materials Science and Engineering Southern University of Science and Technology Shenzhen Guangdong China
| | - Ju Fang
- Department of Materials Science and Engineering Southern University of Science and Technology Shenzhen Guangdong China
| | - Fuzeng Ren
- Department of Materials Science and Engineering Southern University of Science and Technology Shenzhen Guangdong China
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3
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Dan A, Angelescu ML, Serban N, Cojocaru EM, Zarnescu-Ivan N, Cojocaru VD, Galbinasu BM. Evolution of Microstructural and Mechanical Properties during Cold-Rolling Deformation of a Biocompatible Ti-Nb-Zr-Ta Alloy. MATERIALS 2022; 15:ma15103580. [PMID: 35629608 PMCID: PMC9143921 DOI: 10.3390/ma15103580] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/14/2022] [Accepted: 05/16/2022] [Indexed: 11/26/2022]
Abstract
In this study, a Ti-32.9Nb-4.2Zr-7.5Ta (wt%) titanium alloy was produced by melting in a cold crucible induction in a levitation furnace, and then deforming by cold rolling, with progressive deformation degrees (thickness reduction), from 15% to 60%, in 15% increments. The microstructural characteristics of the specimens in as-received and cold-rolled conditions were determined by XRD and SEM microscopy, while the mechanical characteristics were obtained by tensile and microhardness testing. It was concluded that, in all cases, the Ti-32.9Nb-4.2Zr-7.5Ta (wt%) showed a bimodal microstructure consisting of Ti-β and Ti-α″ phases. Cold deformation induced significant changes in the microstructural and the mechanical properties, leading to grain-refinement, crystalline cell distortions and variations in the weight-fraction ratio of both Ti-β and Ti-α″ phases, as the applied degree of deformation increased from 15% to 60%. Changes in the mechanical properties were also observed: the strength properties (ultimate tensile strength, yield strength and microhardness) increased, while the ductility properties (fracture strain and elastic modulus) decreased, as a result of variations in the weight-fraction ratio, the crystallite size and the strain hardening induced by the progressive cold deformation in the Ti-β and Ti-α″ phases.
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Affiliation(s)
- Alexandru Dan
- Faculty of Materials Science and Engineering, University Politehnica of Bucharest, 060042 Bucharest, Romania; (A.D.); (M.L.A.); (N.S.); (E.M.C.); (N.Z.-I.)
| | - Mariana Lucia Angelescu
- Faculty of Materials Science and Engineering, University Politehnica of Bucharest, 060042 Bucharest, Romania; (A.D.); (M.L.A.); (N.S.); (E.M.C.); (N.Z.-I.)
| | - Nicolae Serban
- Faculty of Materials Science and Engineering, University Politehnica of Bucharest, 060042 Bucharest, Romania; (A.D.); (M.L.A.); (N.S.); (E.M.C.); (N.Z.-I.)
| | - Elisabeta Mirela Cojocaru
- Faculty of Materials Science and Engineering, University Politehnica of Bucharest, 060042 Bucharest, Romania; (A.D.); (M.L.A.); (N.S.); (E.M.C.); (N.Z.-I.)
| | - Nicoleta Zarnescu-Ivan
- Faculty of Materials Science and Engineering, University Politehnica of Bucharest, 060042 Bucharest, Romania; (A.D.); (M.L.A.); (N.S.); (E.M.C.); (N.Z.-I.)
| | - Vasile Danut Cojocaru
- Faculty of Materials Science and Engineering, University Politehnica of Bucharest, 060042 Bucharest, Romania; (A.D.); (M.L.A.); (N.S.); (E.M.C.); (N.Z.-I.)
- Correspondence: ; Tel.: +40-21-402-95-31
| | - Bogdan Mihai Galbinasu
- Dental Medicine Faculty, University of Medicine and Pharmacy “Carol Davila” Bucharest, 020021 Bucharest, Romania;
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Çaha I, Alves AC, Chirico C, Pinto AM, Tsipas S, Gordo E, Toptan F. Tribocorrosion-Resistant Ti40Nb-TiN Composites Having TiO 2-Based Nanotubular Surfaces. ACS Biomater Sci Eng 2022; 8:1816-1828. [PMID: 35452579 DOI: 10.1021/acsbiomaterials.1c01446] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel multifunctional material was developed by hard TiN particle reinforcement addition to a β-type Ti40Nb alloy, followed by surface functionalization, yielding the formation of a nanotubular layer. Corrosion and tribocorrosion behaviors were investigated in a phosphate-buffered saline solution at body temperature. The results revealed that the Ti40Nb-TiN composites presented similar ipass and E(i=0) values together with relatively similar Rox and Cox. However, its tribocorrosion resistance drastically improved (wear volume is almost 15 times lower than an unreinforced alloy) as a consequence of the load-carrying effect given by the reinforcement phases. The corrosion and tribocorrosion behaviors were further improved through surface functionalization as observed by significantly lower ipass and higher Rox values and almost undetectable wear volume loss from tribocorrosion tests due to the formation of a well-adhered anatase-rutile TiO2-based nanotubular layer.
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Affiliation(s)
- Ihsan Çaha
- CMEMS-UMinho─Center for MicroElectroMechanical Systems, Universidade do Minho, Azurém, Guimarães 4800-058, Portugal
- LABBELS─Associate Laboratory, Braga, Guimarães 4800-122, Portugal
- International Iberian Nanotechnology Laboratory, Av. Mestre José Veiga s/n, Braga 4715-330, Portugal
| | - Alexandra C Alves
- CMEMS-UMinho─Center for MicroElectroMechanical Systems, Universidade do Minho, Azurém, Guimarães 4800-058, Portugal
- LABBELS─Associate Laboratory, Braga, Guimarães 4800-122, Portugal
- IBTN/Euro─European Branch of the Institute of Biomaterials, Tribocorrosion and Nanomedicine, Dept. Eng. Mecânica, Universidade do Minho, Azurém, Guimarães 4800-058, Portugal
| | - Caterina Chirico
- Universidad Carlos III de Madrid, Avda. Universidad, 30, Leganés 28911, Spain
| | - Ana Maria Pinto
- CMEMS-UMinho─Center for MicroElectroMechanical Systems, Universidade do Minho, Azurém, Guimarães 4800-058, Portugal
- LABBELS─Associate Laboratory, Braga, Guimarães 4800-122, Portugal
- Departamento de Engenharia Mecânica, Universidade do Minho, Azurém, Guimarães 4800-058, Portugal
| | - Sophia Tsipas
- Universidad Carlos III de Madrid, Avda. Universidad, 30, Leganés 28911, Spain
- Instituto "Álvaro Alonso Barba", 30, Leganés 28911, Madrid, Spain
| | - Elena Gordo
- Universidad Carlos III de Madrid, Avda. Universidad, 30, Leganés 28911, Spain
- Instituto "Álvaro Alonso Barba", 30, Leganés 28911, Madrid, Spain
| | - Fatih Toptan
- CMEMS-UMinho─Center for MicroElectroMechanical Systems, Universidade do Minho, Azurém, Guimarães 4800-058, Portugal
- LABBELS─Associate Laboratory, Braga, Guimarães 4800-122, Portugal
- IBTN/Euro─European Branch of the Institute of Biomaterials, Tribocorrosion and Nanomedicine, Dept. Eng. Mecânica, Universidade do Minho, Azurém, Guimarães 4800-058, Portugal
- Department of Materials Science and Engineering, Izmir Institute of Technology, Urla, Izmir 35430, Turkey
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Effects of Cold Rolling Deformation and Solution Treatment on Microstructural, Mechanical, and Corrosion Properties of a Biocompatible Ti-Nb-Ta-Zr Alloy. METALS 2022. [DOI: 10.3390/met12020248] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
One of the most important requirements for a metallic biomaterial is the mechanical biocompatibility, which means excellent mechanical properties—high strength and fatigue strength, but low elastic modulus, to be mechanically harmonized with hard tissues. In order to improve the mechanical and biocompatible performance of the Ti-25.5Nb-4.5Ta-8.0Zr wt% alloy, the influence of cold plastic deformation and solution treatment on its properties were investigated. The Ti-25.5Nb-4.5Ta-8.0Zr wt% alloy was fabricated by melting in a cold crucible furnace (in levitation) and then subjected to several treatment schemes, which include cold rolling and different solution treatments. Microstructural and mechanical characteristics of specimens in as-cast and thermo-mechanically processed condition were determined by SEM microscopy and tensile testing, for different structural states: initial as-cast/as-received, cold rolled and solution treated at different temperatures (800, 900, and 1000 °C) and durations (5, 10, 15, and 20 min), with water quenching. It was concluded that both cold rolling and solution treatment have important positive effects on structural and mechanical properties of the biomaterial, increasing mechanical strength and decreasing the elastic modulus. Samples in different structural states were also corrosion tested and the results provided important information on determining the optimal processing scheme to obtain a high-performance biomaterial. The final processing route chosen consists of a cold rolling deformation with a total deformation degree of 60%, followed by a solution heat treatment at 900 °C with maintenance duration of 5 min and water quenching. By applying this thermo-mechanical processing scheme, the Ti-25.5Nb-4.5Ta-8.0Zr wt% alloy showed an elastic modulus of 56 GPa (5% higher than in the as-cast state), an ultimate tensile strength of 1004 MPa (41.8% higher than in the as-cast state), a yield strength of 718 MPa (40.6% higher than in the as-cast state), and increased corrosion resistance (the corrosion rate decreased by 50% compared to the as-cast state).
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6
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β-Ti Alloys for Orthopedic and Dental Applications: A Review of Progress on Improvement of Properties through Surface Modification. COATINGS 2021. [DOI: 10.3390/coatings11121446] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Ti and Ti alloys have charming comprehensive properties (high specific strength, strong corrosion resistance, and excellent biocompatibility) that make them the ideal choice in orthopedic and dental applications, especially in the particular fabrication of orthopedic and dental implants. However, these alloys present some shortcomings, specifically elastic modulus, wear, corrosion, and biological performance. Beta-titanium (β-Ti) alloys have been studied as low elastic modulus and low toxic or non-toxic elements. The present work summarizes the improvements of the properties systematically (elastic modulus, hardness, wear resistance, corrosion resistance, antibacterial property, and bone regeneration) for β-Ti alloys via surface modification to address these shortcomings. Additionally, the shortcomings and prospects of the present research are put forward. β-Ti alloys have potential regarding implants in biomedical fields.
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7
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Wang C, Xu D, Li S, Yi C, Zhang X, He Y, Yu D. Effect of Pore Size on the Physicochemical Properties and Osteogenesis of Ti6Al4V Porous Scaffolds with Bionic Structure. ACS OMEGA 2020; 5:28684-28692. [PMID: 33195921 PMCID: PMC7658928 DOI: 10.1021/acsomega.0c03824] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Accepted: 10/13/2020] [Indexed: 05/08/2023]
Abstract
Ti6Al4V is widely used in implants in the fields of orthopedics and dentistry due to its high compressive strength and good biocompatibility. Nevertheless, Ti6Al4V has a certain degree of biological inertness and the elastic modulus of Ti6Al4V is much higher than the cortex and trabecular bone. In this study, we designed and printed a new type of pore size Ti6Al4V with like-trabecular structure scaffold (the pore size is 800/900/1000 μm, named P8/P9/P10, respectively) with electron beam melting (EBM). Its elastic modulus, compressive strength, and other physical and chemical properties, as well as cell adhesion, proliferation, and differentiation ability and in vitro biological properties were studied. The physical and chemical performance test results showed that as the pore size increased, the surface wettability increased and the elastic modulus decreased. As the pore size increased, F-actin and alkaline phosphatase (ALP) increased significantly, and osteogenesis-related genes including BMP2, OCN, RUNX2, and ALP were upregulated significantly. The reason may be that the components on the Ti6Al4V pore size may have an influence on intracellular signal conversion and then change the mode of cell proliferation and diffusion. In summary, the like-trabecular porous structure can effectively reduce the elastic modulus of metal materials, thereby avoiding stress concentration and promoting the adhesion and proliferation of osteoblasts. Porous materials with larger pores are more conducive to the proliferation and differentiation of osteoblasts. The irregular porous Ti6Al4V scaffold prepared by the EBM technology has good mechanical properties and the potential to promote adhesion, proliferation, and differentiation of osteoblasts, and has the possibility of application in the field of implantation.
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Affiliation(s)
- Chao Wang
- Guanghua
School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, China
- Guangdong
Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510050, China
| | - Duoling Xu
- Guanghua
School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, China
- Guangdong
Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510050, China
| | - Shujun Li
- Institute
of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
| | - Chen Yi
- Guanghua
School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, China
- Guangdong
Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510050, China
| | - Xiliu Zhang
- Guanghua
School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, China
- Guangdong
Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510050, China
| | - Yi He
- Guanghua
School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, China
- Guangdong
Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510050, China
| | - Dongsheng Yu
- Guanghua
School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, China
- Guangdong
Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510050, China
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Comparison of the osteoblastic activity of low elastic modulus Ti-24Nb-4Zr-8Sn alloy and pure titanium modified by physical and chemical methods. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 113:111018. [PMID: 32487417 DOI: 10.1016/j.msec.2020.111018] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 04/13/2020] [Accepted: 04/24/2020] [Indexed: 02/07/2023]
Abstract
Ti-24Nb-4Zr-8Sn (Ti2448) alloy is a novel low elastic modulus β-titanium alloy without toxic elements. It also has the advantage of high strength, so it has potential application prospects for implantation. To develop its osteogenic effects, it can be modified by electrochemical, and physical processes. The main research aim of this study was to explore the bioactivity of Ti2448 alloy modified by sandblasted, large-grit, acid-etched (SLA), micro-arc oxidation (MAO) and anodic oxidation (AO), and to determine which of the three surface modifications is the best way for developing the osteogenesis of bone marrow mesenchymal stem cells (BMMSCs). In vitro studies, the cytoskeleton, focal adhesion and proliferation of BMMSCs showed that both pure titanium and Ti2448 alloy have good biocompatibility. The osteogenic differentiation of BMMSCs with the Ti2448 alloy were examined by detecting alkaline phosphatase (ALP), mineralization nodules and osteogenic proteins and were better than that with pure titanium. These results showed that the Ti2448 alloy treated by SLA has a better effect on osteogenesis than pure titanium, and AO is the best way of three surface treatments to improve osteogenesis in this study.
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Xu LN, Yu XY, Chen WQ, Zhang SM, Qiu J. Biocorrosion of pure and SLA titanium surfaces in the presence of Porphyromonas gingivalis and its effects on osteoblast behavior. RSC Adv 2020; 10:8198-8206. [PMID: 35497867 PMCID: PMC9049922 DOI: 10.1039/d0ra00154f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 02/20/2020] [Indexed: 01/25/2023] Open
Abstract
Objective: The study aims to investigate the biocorrosion behavior of Porphyromonas gingivalis on pure and SLA titanium surfaces and its effects on surface characteristics and osteoblast behavior. Methods: Pure and SLA titanium specimens were immersed in culture medium with P. gingivalis and incubated for 7 days. P. gingivalis colonization on the pure and SLA titanium surfaces was observed by scanning electron microscopy (SEM). The pure and SLA titanium surface characteristics were analyzed via X-ray photoelectron spectroscopy (XPS), surface roughness and surface wettability. The corrosion behaviors of pure and SLA titanium specimens were evaluated by electrochemical corrosion test. The osteoblast behavior of MC3T3-E1 cells on the pure and SLA titanium surfaces after P. gingivalis colonization was investigated by cell adhesion and western blot assays. Results: P. gingivalis colonized on the pure and SLA titanium surfaces was observed by SEM. The XPS analysis demonstrated reductions in the relative levels of titanium and oxygen and obvious reductions of dominant titanium dioxide (TiO2) on both titanium surfaces after immersing the metal in P. gingivalis culture. In addition, their roughness and wettability were changed. Correspondingly, the electrochemical corrosion test results revealed significant decreases in the corrosion resistance and increases in the corrosion rate of the pure and SLA titanium specimens after immersion in P. gingivalis culture. The results of the in vitro study showed that the pre-corroded pure and SLA titanium surfaces by P. gingivalis exhibited lower osteocompatibility and down-regulated the adhesion, spreading and osteogenic differentiation abilities of MC3T3-E1 cells. Conclusions: P. gingivalis was able to colonize on the pure and SLA titanium surfaces and weaken their surface properties, especially a decrease in the protective TiO2 film, which induced the biocorrosion and further negatively affected the osteoblast behavior. The study demonstrated that P. gingivalis could colonize on pure and SLA titanium surfaces and weaken their surface properties, especially the protective TiO2 film, which induced the biocorrosion and further negatively affected osteoblast behavior.![]()
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Affiliation(s)
- Li-na Xu
- Department of Oral Implantology
- Affiliated Hospital of Stomatology
- Nanjing Medical University
- Nanjing
- PR China
| | - Xiao-yu Yu
- Department of Oral Implantology
- Affiliated Hospital of Stomatology
- Nanjing Medical University
- Nanjing
- PR China
| | - Wan-qing Chen
- Department of Oral Implantology
- Affiliated Hospital of Stomatology
- Nanjing Medical University
- Nanjing
- PR China
| | - Song-mei Zhang
- Department of General Dentistry
- Eastman Institute for Oral Health
- University of Rochester
- Rochester
- USA
| | - Jing Qiu
- Department of Oral Implantology
- Affiliated Hospital of Stomatology
- Nanjing Medical University
- Nanjing
- PR China
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Li J, Jansen JA, Walboomers XF, van den Beucken JJ. Mechanical aspects of dental implants and osseointegration: A narrative review. J Mech Behav Biomed Mater 2019; 103:103574. [PMID: 32090904 DOI: 10.1016/j.jmbbm.2019.103574] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 09/23/2019] [Accepted: 11/29/2019] [Indexed: 12/28/2022]
Abstract
With the need of rapid healing and long-term stability of dental implants, the existing Ti-based implant materials do not meet completely the current expectation of patients. Low elastic modulus Ti-alloys have shown superior biocompatibility and can achieve comparable or even faster bone formation in vivo at the interface of bone and the implant. Porous structured Ti alloys have shown to allow rapid bone ingrowth through their open structure and to achieve anchorage with bone tissue by increasing the bone-implant interface area. In addition to the mechanical properties of implant materials, the design of the implant body can be used to optimize load transfer and affect the ultimate results of osseointegration. The aim of this narrative review is to define the mechanical properties of dental implants, summarize the relationship between implant stability and osseointegration, discuss the effect of metallic implant mechanical properties (e.g. stiffness and porosity) on the bone response based on existing in vitro and in vivo information, and analyze load transfer through mechanical properties of the implant body. This narrative review concluded that although several studies have presented the advantages of low elastic modulus or high porosity alloys and their effect on osseointegration, further in vivo studies, especially long-term observational studies are needed to justify these novel materials as a replacement for current Ti-based implant materials.
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Affiliation(s)
- Jinmeng Li
- Department of Biomaterials, Radboudumc, P.O. Box 9101, 6500, Nijmegen, HB, the Netherlands
| | - John A Jansen
- Department of Biomaterials, Radboudumc, P.O. Box 9101, 6500, Nijmegen, HB, the Netherlands
| | - X Frank Walboomers
- Department of Biomaterials, Radboudumc, P.O. Box 9101, 6500, Nijmegen, HB, the Netherlands
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11
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Li X, Yin HM, Luo E, Zhu S, Wang P, Zhang Z, Liao GQ, Xu JZ, Li ZM, Li JH. Accelerating Bone Healing by Decorating BMP-2 on Porous Composite Scaffolds. ACS APPLIED BIO MATERIALS 2019; 2:5717-5726. [PMID: 35021565 DOI: 10.1021/acsabm.9b00761] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Xiang Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Hua-Mo Yin
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - En Luo
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Songsong Zhu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Peng Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Zhen Zhang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Gui-Qing Liao
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Jia-Zhuang Xu
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Zhong-Ming Li
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Ji-Hua Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
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12
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Bouet G, Cabanettes F, Bidron G, Guignandon A, Peyroche S, Bertrand P, Vico L, Dumas V. Laser-Based Hybrid Manufacturing of Endosseous Implants: Optimized Titanium Surfaces for Enhancing Osteogenic Differentiation of Human Mesenchymal Stem Cells. ACS Biomater Sci Eng 2019; 5:4376-4385. [PMID: 33438403 DOI: 10.1021/acsbiomaterials.9b00769] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Additive manufacturing (AM) is becoming increasingly important in the orthopedic and dental sectors thanks to two major advantages: the possibility of custom manufacturing and the integration of complex structures. However, at smaller scales, surface conditions of AM products are not mastered. Numerous non-fused powder particles give rise to roughness values (Sa) greater than 10 μm, thus limiting biomedical applications since the surface roughness of, e.g., metal implants plays a major role in the quality and rate of osseointegration. In this study, an innovative hybrid machine combining AM and a femtosecond laser (FS) was used to obtain Ti6Al4V parts with biofunctional surfaces. During the manufacturing process, the FS laser beam "neatly" ablates the surface, leaving in its path nanostructures created by the laser/matter interaction. This step decreases the Sa from 11 to 4 μm and increases the surface wettability. The behavior of human mesenchymal stem cells was evaluated on these new AM+FS surfaces and compared with that on AM surfaces and also on polished surfaces. The number of cells attached 24 h after plating is equivalent on all surfaces, but cell spreading is higher on AM+FS surfaces compared with their AM counterparts. In the longer term (days 7 and 14), fibronectin and collagen synthesis increase on AM+FS surfaces as opposed to AM alone. Alkaline phosphatase activity, osteocalcin production, and mineralization, markers of osteogenic differentiation, are significantly lower on raw AM surfaces, whereas on the AM+FS specimens they display a level equivalent to that on the polished surface. Overall, these results indicate that using an FS laser beam during the fabrication of AM parts optimizes surface morphology to favor osteoblastic differentiation. This new hybrid machine could make it possible to produce AM implants with functional surfaces directly at the end of AM, thereby limiting their post-treatments.
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Affiliation(s)
- Guenaelle Bouet
- Ecole Nationale d'Ingénieurs de Saint-Etienne, Laboratoire de Tribologie et Dynamique des Systèmes, UMR 5513 CNRS, University of Lyon, 58, rue Jean Parot, 42023 Saint-Etienne, France
| | - Frédéric Cabanettes
- Ecole Nationale d'Ingénieurs de Saint-Etienne, Laboratoire de Tribologie et Dynamique des Systèmes, UMR 5513 CNRS, University of Lyon, 58, rue Jean Parot, 42023 Saint-Etienne, France
| | - Guillaume Bidron
- GIE Manutech-USD (Ultrafast Surface Design), 20 Rue Professeur Benoît Lauras, 42000 Saint-Etienne, France
| | - Alain Guignandon
- INSERM U1059-SAINBIOSE, University of Lyon, 42270 Saint-Priest-en-Jarez, France
| | - Sylvie Peyroche
- INSERM U1059-SAINBIOSE, University of Lyon, 42270 Saint-Priest-en-Jarez, France
| | - Philippe Bertrand
- Ecole Nationale d'Ingénieurs de Saint-Etienne, Laboratoire de Tribologie et Dynamique des Systèmes, UMR 5513 CNRS, University of Lyon, 58, rue Jean Parot, 42023 Saint-Etienne, France
| | - Laurence Vico
- INSERM U1059-SAINBIOSE, University of Lyon, 42270 Saint-Priest-en-Jarez, France
| | - Virginie Dumas
- Ecole Nationale d'Ingénieurs de Saint-Etienne, Laboratoire de Tribologie et Dynamique des Systèmes, UMR 5513 CNRS, University of Lyon, 58, rue Jean Parot, 42023 Saint-Etienne, France
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Research on in vitro and in vivo biocompatibility of the low-friction Ti+C/amorphous carbon gradient multilayer films for hard tissue engineering. Colloids Surf B Biointerfaces 2019; 180:344-352. [PMID: 31075688 DOI: 10.1016/j.colsurfb.2019.04.053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 04/22/2019] [Accepted: 04/24/2019] [Indexed: 01/02/2023]
Abstract
Ti+C/amorphous carbon (a-C) gradient multilayer (GM) films are prepared on the Ti-alloy substrates via physical vapor deposition. Transmission electron microscopy revealed that the Ti atoms combine with the a-C film to form a TiC phase in the inner layer and the sputtering current significantly influences the amount of the TiC phase. Further, the mechanical properties of the Ti+C/a-C GM films were obtained using nanoindentation, and the results denoted the significant improvement in the mechanical properties of the a-C film after adding the Ti+C transition layers. The hardness and elastic modulus of the a-C GM films became approximately 31 and 265 GPa, respectively, which were obviously greater than those of the a-C films. The biotribological properties of the a-C GM films in fetal bovine serum (FBS) were verified. The coefficient of friction (COF) and wear rate of the obtained Ti+C/a-C GM film were 0.057 and (1.06-1.24) × 10-6 mm3/(N m), respectively, which were lower than those of pure a-C and the bare Ti alloy. The excellent mechanical properties of the Ti+C gradient transition layer and the lubricating effect of the FBS medium caused the low COF of the a-C GM films, indicating the potential biotribology applications of the a-C films. The cell apoptosis tests suggested that the a-C GM films promoted cell proliferation and viability. Meanwhile, the a-C-GM-coated implants and muscle tissue combined, and hyperergic and inflammatory reactions were not observed six weeks after implantation. These data indicate that the Ti+C/a-C GM film exhibits good biocompatibility and is an ideal mounting material for bone tissue engineering.
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Masahashi N, Mori Y, Tanaka H, Kogure A, Inoue H, Ohmura K, Kodama Y, Nishijima M, Itoi E, Hanada S. Bioactive TiNbSn alloy prepared by anodization in sulfuric acid electrolytes. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 98:753-763. [PMID: 30813081 DOI: 10.1016/j.msec.2019.01.033] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Revised: 01/05/2019] [Accepted: 01/08/2019] [Indexed: 11/25/2022]
Abstract
The bioactivity of anodized near-β TiNbSn alloy with low Young's modulus prepared in sulfuric acid electrolytes was examined to explore the osseointegration mechanism with a focus on the role of anodic oxide. Hydroxyapatite (HA) precipitated on the surface of anodic oxide following immersion in Hank's solution, and precipitation accelerated with increase in the sulfuric acid concentration of the electrolyte. HA is formed on the surface of as-anodized oxide without subsequent annealing or hot water (HW) treatment. This outcome differs from that of a previous study using anodized TiNbSn alloy prepared in acetic acid electrolytes requiring for subsequent HW treatment. It was found that the oxide anodized in sulfuric acid electrolyte contains a large amount of internal pores and is highly crystallized thick TiO2, whereas the same prepared in the acetic acid electrolyte is low crystalline thin TiO2 containing a small amount of pores. The present anodized TiNbSn alloy is preferred for maintaining the low Young's modulus of the alloy and eliminating the subsequent treatment to increase the Young's modulus. A model to rationalize the bioactivity of the present anodic oxide is proposed based on the series of studies. It is concluded that the sulfuric acid electrolyte is favorable for both HA formation and low Young's modulus, and the bioactivity is attributed to the anodic TiO2 that facilitates incorporation of bone ingredients.
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Affiliation(s)
- N Masahashi
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba, Sendai, Miyagi 980-8577, Japan.
| | - Y Mori
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Tohoku University, 1-1Seiryo-machi, Aoba, Sendai, Miyagi 980-8574, Japan
| | - H Tanaka
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Tohoku University, 1-1Seiryo-machi, Aoba, Sendai, Miyagi 980-8574, Japan
| | - A Kogure
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Tohoku University, 1-1Seiryo-machi, Aoba, Sendai, Miyagi 980-8574, Japan
| | - H Inoue
- Department of Materials Science, Graduate School of Engineering, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - K Ohmura
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba, Sendai, Miyagi 980-8577, Japan
| | - Y Kodama
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba, Sendai, Miyagi 980-8577, Japan
| | - M Nishijima
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba, Sendai, Miyagi 980-8577, Japan
| | - E Itoi
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Tohoku University, 1-1Seiryo-machi, Aoba, Sendai, Miyagi 980-8574, Japan
| | - S Hanada
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba, Sendai, Miyagi 980-8577, Japan
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Chen J, Li J, Hu F, Zou Q, Mei Q, Li S, Hao Y, Hou W, Li J, Li Y, Zuo Y. Effect of Microarc Oxidation-Treated Ti6Al4V Scaffold Following Low-Intensity Pulsed Ultrasound Stimulation on Osteogenic Cells in Vitro. ACS Biomater Sci Eng 2019; 5:572-581. [DOI: 10.1021/acsbiomaterials.8b01000] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Jie Chen
- Research Center for Nano Biomaterials, and Analytical & Testing Center, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Jiongjiong Li
- Research Center for Nano Biomaterials, and Analytical & Testing Center, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Fu Hu
- Research Center for Nano Biomaterials, and Analytical & Testing Center, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Qin Zou
- Research Center for Nano Biomaterials, and Analytical & Testing Center, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Quanjing Mei
- Research Center for Nano Biomaterials, and Analytical & Testing Center, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Shujun Li
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, People’s Republic of China
| | - Yulin Hao
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, People’s Republic of China
| | - Wentao Hou
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, People’s Republic of China
| | - Jidong Li
- Research Center for Nano Biomaterials, and Analytical & Testing Center, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Yubao Li
- Research Center for Nano Biomaterials, and Analytical & Testing Center, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Yi Zuo
- Research Center for Nano Biomaterials, and Analytical & Testing Center, Sichuan University, Chengdu 610064, People’s Republic of China
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Ouyang L, Deng Y, Yang L, Shi X, Dong T, Tai Y, Yang W, Chen ZG. Graphene-Oxide-Decorated Microporous Polyetheretherketone with Superior Antibacterial Capability and In Vitro Osteogenesis for Orthopedic Implant. Macromol Biosci 2018; 18:e1800036. [DOI: 10.1002/mabi.201800036] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 03/08/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Ling Ouyang
- School of Materials Science and Engineering; Sichuan University; Chengdu 610065 China
| | - Yi Deng
- School of Chemical Engineering; Sichuan University; Chengdu 610065 China
- Department of Mechanical Engineering; The University of Hong Kong; 999077 Hong Kong China
| | - Lei Yang
- School of Materials Science and Engineering; Sichuan University; Chengdu 610065 China
| | - Xiuyuan Shi
- School of Materials Science and Engineering; Sichuan University; Chengdu 610065 China
| | - Taosheng Dong
- School of Materials Science and Engineering; Sichuan University; Chengdu 610065 China
| | - Youyi Tai
- School of Materials Science and Engineering; Sichuan University; Chengdu 610065 China
| | - Weizhong Yang
- School of Materials Science and Engineering; Sichuan University; Chengdu 610065 China
| | - Zhi-Gang Chen
- Centre for Future Materials; University of Southern Queensland; Springfield QLD 4300 Australia
- Materials Engineering; The University of Queensland; Brisbane QLD 4072 Australia
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17
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Nune KC, Misra RDK, Gai X, Li SJ, Hao YL. Surface nanotopography-induced favorable modulation of bioactivity and osteoconductive potential of anodized 3D printed Ti-6Al-4V alloy mesh structure. J Biomater Appl 2017; 32:1032-1048. [DOI: 10.1177/0885328217748860] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The objective of the study described here is to fundamentally elucidate the biological response of 3D printed Ti-6Al-4V alloy mesh structures that were surface modified to introduce titania nanotubes with an average pore size of ∼80 nm via an electrochemical anodization process from the perspective of enhancing bioactivity. The bioactivity of the mesh structures were analyzed through immersion test in simulated body fluid, which confirmed the nucleation and growth of fine globular nanoscale apatite on the nanoporous titania-modified (anodized) mesh structure surface, and agglomerated apatite with fine flakes of apatite crystals on as-fabricated mesh structure surface, that were rich in calcium and phosphorous. The cellular activity of bioactive anodized mesh structure was explored in terms of cell–material interactions involving adhesion, proliferation, synthesis of extracellular and intracellular proteins, differentiation, and mineralization. Cells adhered with a sheet-like morphology on as-fabricated mesh structure, whereas, on anodized mesh structure, numerous filopodia-like cellular extensions interacting with nanotube pores were observed. The formation of a bioactive nanoscale apatite, cell–nanotube interactions as imaged via electron microscopy, higher expression of proteins (actin, vinculin, fibronectin, and alkaline phosphatase (ALP)), and calcium content points toward the determining role of anodized mesh structure in modulating osteoblasts functions. The unique combination of nanoporous bioactive titania and interconnected porous architecture of anodized titanium alloy mesh structure provided a multimodal roughness surface ranging from nano to micro to macroscale, which helps in attaining strong primary and secondary fixation of the implant device along with the pathway for supply of nutrients and oxygen to cells and tissue.
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Affiliation(s)
- KC Nune
- Department of Metallurgical, Materials and Biomedical Engineering, University of Texas at El Paso, El Paso, TX, USA
| | - RDK Misra
- Department of Metallurgical, Materials and Biomedical Engineering, University of Texas at El Paso, El Paso, TX, USA
| | - X Gai
- Shenyang National Laboratory for Materials Science, Institute of Metals Research, Chinese Academy of Sciences, Shenyang, China
| | - SJ Li
- Shenyang National Laboratory for Materials Science, Institute of Metals Research, Chinese Academy of Sciences, Shenyang, China
| | - YL Hao
- Shenyang National Laboratory for Materials Science, Institute of Metals Research, Chinese Academy of Sciences, Shenyang, China
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18
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Antimicrobial and Osseointegration Properties of Nanostructured Titanium Orthopaedic Implants. MATERIALS 2017; 10:ma10111302. [PMID: 29137166 PMCID: PMC5706249 DOI: 10.3390/ma10111302] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 11/01/2017] [Accepted: 11/08/2017] [Indexed: 02/06/2023]
Abstract
The surface design of titanium implants influences not only the local biological reactions but also affects at least the clinical result in orthopaedic application. During the last decades, strong efforts have been made to improve osteointegration and prevent bacterial adhesion to these surfaces. Following the rule of “smaller, faster, cheaper”, nanotechnology has encountered clinical application. It is evident that the hierarchical implant surface micro- and nanotopography orchestrate the biological cascades of early peri-implant endosseous healing or implant loosening. This review of the literature gives a brief overview of nanostructured titanium-base biomaterials designed to improve osteointegration and prevent from bacterial infection.
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19
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Li J, Liu X, Crook JM, Wallace GG. Development of a porous 3D graphene-PDMS scaffold for improved osseointegration. Colloids Surf B Biointerfaces 2017; 159:386-393. [PMID: 28818783 DOI: 10.1016/j.colsurfb.2017.07.087] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 07/28/2017] [Accepted: 07/30/2017] [Indexed: 10/19/2022]
Abstract
Osseointegration in orthopedic surgery plays an important role for bone implantation success. Traditional treatment of implant surface aimed at improved osseointegration has limited capability for its poor performance in supporting cell growth and proliferation. Polydimethylsiloxane (PDMS) is a widely used silicon-based organic polymer material with properties that are useful in cosmetics, domestic applications and mechanical engineering. In addition, the biocompatibility of PDMS, in part due to the high solubility of oxygen, makes it an ideal material for cell-based implants. Notwithstanding its potential, a property that can inhibit PDMS bioactivity is the high hydrophobicity, limiting its use to date in tissue engineering. Here, we describe an efficient approach to produce porous, durable and cytocompatible PDMS-based 3D structures, coated with reduced graphene oxide (RGO). The RGO/PDMS scaffold has good mechanical strength and with pore sizes ranging from 10 to 600μm. Importantly, the scaffold is able to support growth and differentiation of human adipose stem cells (ADSCs) to an osteogenic cell lineage, indicative of its potential as a transition structure of an osseointegrated implant.
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Affiliation(s)
- Jianfeng Li
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM Facility, University of Wollongong, NSW 2500, Australia
| | - Xiao Liu
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM Facility, University of Wollongong, NSW 2500, Australia.
| | - Jeremy M Crook
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM Facility, University of Wollongong, NSW 2500, Australia; Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, New South Wales 2522, Australia; Department of Surgery, St Vincent's Hospital, The University of Melbourne, Fitzroy, Victoria 3065, Australia
| | - Gordon G Wallace
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM Facility, University of Wollongong, NSW 2500, Australia.
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Sethu SN, Namashivayam S, Devendran S, Nagarajan S, Tsai WB, Narashiman S, Ramachandran M, Ambigapathi M. Nanoceramics on osteoblast proliferation and differentiation in bone tissue engineering. Int J Biol Macromol 2017; 98:67-74. [DOI: 10.1016/j.ijbiomac.2017.01.089] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 01/11/2017] [Accepted: 01/18/2017] [Indexed: 01/24/2023]
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21
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Hu X, Sun A, Kang W, Zhou Q. Strategies and knowledge gaps for improving nanomaterial biocompatibility. ENVIRONMENT INTERNATIONAL 2017; 102:177-189. [PMID: 28318601 DOI: 10.1016/j.envint.2017.03.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 02/26/2017] [Accepted: 03/01/2017] [Indexed: 06/06/2023]
Abstract
With rapid development of nanotechnology and nanomaterials, nanosafety has attracted wide attention in all fields related to nanotechnology. As well known, a grand challenge in nanomaterial applications is their biocompatibility. It is urgent to explore effective strategies to control the unintentional effects. Although many novel methods for the synthesis of biocompatible and biodegradable nanomaterials are reported, the control strategy of nanotoxicity remains in its infancy. It is urgent to review the archived strategies for improving nanomaterial biocompatibility to clarify what we have done and where we should be. In this review, the achievements and challenges in nanomaterial structure/surface modifications and size/shape controls were analyzed. Moreover, the chemical and biological strategies to make nanomaterial more biocompatible and biodegradable were compared. Finally, the concerns that have not been studied well were prospected, involving unintended releases, life-cycle, occupational exposure and methodology.
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Affiliation(s)
- Xiangang Hu
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China.
| | - Anqi Sun
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
| | - Weilu Kang
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
| | - Qixing Zhou
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
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Juraski ADC, Rodas ACD, Elsayed H, Bernardo E, Soares VO, Daguano J. The In Vitro Bioactivity, Degradation, and Cytotoxicity of Polymer-Derived Wollastonite-Diopside Glass-Ceramics. MATERIALS 2017; 10:ma10040425. [PMID: 28772783 PMCID: PMC5506970 DOI: 10.3390/ma10040425] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 03/24/2017] [Accepted: 04/12/2017] [Indexed: 11/16/2022]
Abstract
Ca-Mg silicates are receiving a growing interest in the field of bioceramics. In a previous study, wollastonite-diopside (WD) glass-ceramics were successfully prepared by a new processing route, consisting of the heat treatment of a silicone resin embedding reactive oxide particles and a Ca/Mg-rich glass. The in vitro degradation, bioactivity, and cell response of these new WD glass-ceramics, fired at 900-1100 °C for 1 h, as a function of the Ca/Mg-rich glass content, are the aim of this investigation The results showed that WD glass-ceramics from formulations comprising different glass contents (70-100% at 900 °C, 30% at 1100 °C) exhibit the formation of an apatite-like layer on their surface after immersion in SBF for seven days, thus confirming their surface bioactivity. The XRD results showed that these samples crystallized, mainly forming wollastonite (CaSiO₃) and diopside (CaMgSi₂O₆), but combeite (Na₂Ca₂Si₃O₉) crystalline phase was also detected. Besides in vitro bioactivity, cytotoxicity and osteoblast adhesion and proliferation tests were applied after all characterizations, and the formulation comprising 70% glass was demonstrated to be promising for further in vivo studies.
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Affiliation(s)
- Amanda De Castro Juraski
- Centro de Engenharia, Modelagem e Ciências Sociais Aplicadas, Federal University of ABC, Santo André 09210-580, Brazil.
| | - Andrea Cecilia Dorion Rodas
- Centro de Engenharia, Modelagem e Ciências Sociais Aplicadas, Federal University of ABC, Santo André 09210-580, Brazil.
| | - Hamada Elsayed
- Dipartimento di Ingegneria Industriale, University of Padova, Padova 35131, Italy.
- Ceramics Department, National Research Centre, El-Bohous Street, 12622 Cairo, Egypt.
| | - Enrico Bernardo
- Dipartimento di Ingegneria Industriale, University of Padova, Padova 35131, Italy.
| | | | - Juliana Daguano
- Centro de Engenharia, Modelagem e Ciências Sociais Aplicadas, Federal University of ABC, Santo André 09210-580, Brazil.
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Is there scientific evidence favoring the substitution of commercially pure titanium with titanium alloys for the manufacture of dental implants? MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 71:1201-1215. [DOI: 10.1016/j.msec.2016.10.025] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Revised: 10/07/2016] [Accepted: 10/16/2016] [Indexed: 11/22/2022]
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