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Sharipova A, Zlotver I, Sosnik A, Rabkin E. Solid-State Dewetting of Thin Au Films for Surface Functionalization of Biomedical Implants. Materials (Basel) 2023; 16:7524. [PMID: 38138670 PMCID: PMC10744913 DOI: 10.3390/ma16247524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/28/2023] [Accepted: 12/02/2023] [Indexed: 12/24/2023]
Abstract
Biomaterial-centered infections of orthopedic implants remain a significant burden in the healthcare system due to sedentary lifestyles and an aging population. One approach to combat infections and improve implant osteointegration is functionalizing the implant surface with anti-infective and osteoinductive agents. In this framework, Au nanoparticles are produced on the surface of Ti-6Al-4V medical alloy by solid-state dewetting of 5 nm Au film and used as the substrate for the conjugation of a model antibiotic vancomycin via a mono-thiolated poly(ethylene glycol) linker. Produced Au nanoparticles on Ti-6Al-4V surface are equiaxed with a mean diameter 19.8 ± 7.2 nm, which is shown by high-resolution scanning electron microscopy and atomic force microscopy. The conjugation of the antibiotic vancomycin, 18.8 ± 1.3 nm-thick film, is confirmed by high resolution-scanning transmission electron microscopy and X-ray photoelectron spectroscopy. Overall, showing a link between the solid-state dewetting process and surface functionalization, we demonstrate a novel, simple, and versatile method for functionalization of implant surfaces.
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Affiliation(s)
- Aliya Sharipova
- Department of Materials Science and Engineering, Technion–Israel Institute of Technology, Haifa 3200003, Israel; (A.S.); (I.Z.); (A.S.)
- Department of Bio- and Nanotechnology, Fraunhofer Institute for Ceramic Technologies and Systems IKTS, 01277 Dresden, Germany
| | - Ivan Zlotver
- Department of Materials Science and Engineering, Technion–Israel Institute of Technology, Haifa 3200003, Israel; (A.S.); (I.Z.); (A.S.)
| | - Alejandro Sosnik
- Department of Materials Science and Engineering, Technion–Israel Institute of Technology, Haifa 3200003, Israel; (A.S.); (I.Z.); (A.S.)
| | - Eugen Rabkin
- Department of Materials Science and Engineering, Technion–Israel Institute of Technology, Haifa 3200003, Israel; (A.S.); (I.Z.); (A.S.)
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Shang J, Zhou C, Jiang C, Huang X, Liu Z, Zhang H, Zhao J, Liang W, Zeng B. Recent developments in nanomaterials for upgrading treatment of orthopedics diseases. Front Bioeng Biotechnol 2023; 11:1221365. [PMID: 37621999 PMCID: PMC10446844 DOI: 10.3389/fbioe.2023.1221365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 07/11/2023] [Indexed: 08/26/2023] Open
Abstract
Nanotechnology has changed science in the last three decades. Recent applications of nanotechnology in the disciplines of medicine and biology have enhanced medical diagnostics, manufacturing, and drug delivery. The latest studies have demonstrated this modern technology's potential for developing novel methods of disease detection and treatment, particularly in orthopedics. According to recent developments in bone tissue engineering, implantable substances, diagnostics and treatment, and surface adhesives, nanomedicine has revolutionized orthopedics. Numerous nanomaterials with distinctive chemical, physical, and biological properties have been engineered to generate innovative medication delivery methods for the local, sustained, and targeted delivery of drugs with enhanced therapeutic efficacy and minimal or no toxicity, indicating a very promising strategy for effectively controlling illnesses. Extensive study has been carried out on the applications of nanotechnology, particularly in orthopedics. Nanotechnology can revolutionize orthopedics cure, diagnosis, and research. Drug delivery precision employing nanotechnology using gold and liposome nanoparticles has shown especially encouraging results. Moreover, the delivery of drugs and biologics for osteosarcoma is actively investigated. Different kind of biosensors and nanoparticles has been used in the diagnosis of bone disorders, for example, renal osteodystrophy, Paget's disease, and osteoporosis. The major hurdles to the commercialization of nanotechnology-based composite are eventually examined, thus helping in eliminating the limits in connection to some pre-existing biomaterials for orthopedics, important variables like implant life, quality, cure cost, and pain and relief from pain. The potential for nanotechnology in orthopedics is tremendous, and most of it looks to remain unexplored, but not without challenges. This review aims to highlight the up tp date developments in nanotechnology for boosting the treatment modalities for orthopedic ailments. Moreover, we also highlighted unmet requirements and present barriers to the practical adoption of biomimetic nanotechnology-based orthopedic treatments.
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Affiliation(s)
- Jinxiang Shang
- Department of Orthopedics, Affiliated Hospital of Shaoxing University, Shaoxing, China
| | - Chao Zhou
- Department of Orthopedics, Zhoushan Guanghua Hospital, Zhoushan, China
| | - Chanyi Jiang
- Department of Pharmacy, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Xiaogang Huang
- Department of Orthopedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Zunyong Liu
- Department of Orthopedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Hengjian Zhang
- Department of Orthopedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Jiayi Zhao
- Department of Orthopedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Wenqing Liang
- Department of Orthopedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Bin Zeng
- Department of Orthopedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
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Chen MQ. Recent Advances and Perspective of Nanotechnology-Based Implants for Orthopedic Applications. Front Bioeng Biotechnol 2022; 10:878257. [PMID: 35547165 PMCID: PMC9082310 DOI: 10.3389/fbioe.2022.878257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 04/01/2022] [Indexed: 11/13/2022] Open
Abstract
Bioimplant engineering strives to provide biological replacements for regenerating, retaining, or modifying injured tissues and/or organ function. Modern advanced material technology breakthroughs have aided in diversifying ingredients used in orthopaedic implant applications. As such, nanoparticles may mimic the surface features of real tissues, particularly in terms of wettability, topography, chemistry, and energy. Additionally, the new features of nanoparticles support their usage in enhancing the development of various tissues. The current study establishes the groundwork for nanotechnology-driven biomaterials by elucidating key design issues that affect the success or failure of an orthopaedic implant, its antibacterial/antimicrobial activity, response to cell attachment propagation, and differentiation. The possible use of nanoparticles (in the form of nanosized surface or a usable nanocoating applied to the implant’s surface) can solve a number of problems (i.e., bacterial adhesion and corrosion resilience) associated with conventional metallic or non-metallic implants, particularly when implant techniques are optimised. Orthopaedic biomaterials’ prospects (i.e., pores architectures, 3D implants, and smart biomaterials) are intriguing in achieving desired implant characteristics and structure exhibiting stimuli-responsive attitude. The primary barriers to commercialization of nanotechnology-based composites are ultimately discussed, therefore assisting in overcoming the constraints in relation to certain pre-existing orthopaedic biomaterials, critical factors such as quality, implant life, treatment cost, and pain alleviation.
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Affiliation(s)
- Ming-Qi Chen
- Traumatic Orthopedics Yantai Mountain Hospital, Yantai, China
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Zhu Y, Zhou D, Zan X, Ye Q, Sheng S. Engineering the surfaces of orthopedic implants with osteogenesis and antioxidants to enhance bone formation in vitro and in vivo. Colloids Surf B Biointerfaces 2022; 212:112319. [PMID: 35051792 DOI: 10.1016/j.colsurfb.2022.112319] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 12/23/2021] [Accepted: 01/05/2022] [Indexed: 11/21/2022]
Abstract
Limited osteointegration of orthopedic implants with surrounding tissues has been the leading issue until the failure of orthopedic implants in the long term, which could be induced by multiple factors, including infection, limited abilities for bone formation and remodeling, and an overstressed reactive oxygen species (ROS) environment around implants. To address this challenge, a multifunctional coating composed of tannic acid (TA), nanohydroxyapatite (nHA) and gelatin (Gel) was fabricated by a layer-by-layer (LBL) technique, into which TA, nHA, and Gel were integrated, and their respective functions were utilized to synergistically promote osteogenesis. The fabrication process of (TA@nHA/Gel)n coatings and related bio-multifunctionalities were thoroughly investigated by various techniques. We found that the (TA@nHA/Gel)n coatings showed strong antioxidant activity and accelerated cellular attachment in the early stage and proliferation in the long term, largely enhancing osteogenesis in vitro and promoting bone formation in vivo. We believe our findings will guide the design of orthopedic implants in the future, and the strategy developed here could pave the way for multifunctional orthopedic implant coating and protein-related coatings with various potential applications, including biosensors, catalysis, tissue engineering, and life science.
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Hou C, An J, Zhao D, Ma X, Zhang W, Zhao W, Wu M, Zhang Z, Yuan F. Surface Modification Techniques to Produce Micro/Nano-scale Topographies on Ti-Based Implant Surfaces for Improved Osseointegration. Front Bioeng Biotechnol 2022; 10:835008. [PMID: 35402405 PMCID: PMC8990803 DOI: 10.3389/fbioe.2022.835008] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 03/08/2022] [Indexed: 12/24/2022] Open
Abstract
Titanium and titanium alloys are used as artificial bone substitutes due to the good mechanical properties and biocompatibility, and are widely applied in the treatment of bone defects in clinic. However, Pure titanium has stress shielding effect on bone, and the effect of titanium-based materials on promoting bone healing is not significant. To solve this problem, several studies have proposed that the surface of titanium-based implants can be modified to generate micro or nano structures and improve mechanical properties, which will have positive effects on bone healing. This article reviews the application and characteristics of several titanium processing methods, and explores the effects of different technologies on the surface characteristics, mechanical properties, cell behavior and osseointegration. The future research prospects in this field and the characteristics of ideal titanium-based implants are proposed.
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Affiliation(s)
- Chuang Hou
- Department of Orthopedics, The Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Jing An
- Nursing Teaching and Research Department, The Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Duoyi Zhao
- Department of Orthopedics, The Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Xiao Ma
- Department of Orthopedics, The Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Weilin Zhang
- Department of Orthopedics, The Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Wei Zhao
- Department of Orthopedics, The Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Meng Wu
- Department of Orthopedics, The Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Zhiyu Zhang
- Department of Orthopedics, The Fourth Affiliated Hospital of China Medical University, Shenyang, China
- *Correspondence: Zhiyu Zhang, ; Fusheng Yuan,
| | - Fusheng Yuan
- Department of Orthopedics, The Fourth Affiliated Hospital of China Medical University, Shenyang, China
- *Correspondence: Zhiyu Zhang, ; Fusheng Yuan,
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Tong X, Sun Q, Zhang D, Wang K, Dai Y, Shi Z, Li Y, Dargusch M, Huang S, Ma J, Wen C, Lin J. Impact of scandium on mechanical properties, corrosion behavior, friction and wear performance, and cytotoxicity of a β-type Ti-24Nb-38Zr-2Mo alloy for orthopedic applications. Acta Biomater 2021; 134:791-803. [PMID: 34332105 DOI: 10.1016/j.actbio.2021.07.061] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 07/21/2021] [Accepted: 07/23/2021] [Indexed: 02/06/2023]
Abstract
β-type titanium (Ti) alloys have been extensively investigated as orthopedic implant materials due to their unique combination of low elastic modulus, high specific strength, corrosion resistance, and biocompatibility. In this study the mechanical properties, corrosion behavior, friction and wear performance, and cytotoxicity of β-type Ti-24Nb-38Zr-2Mo (TNZM) and Ti-24Nb-38Zr-2Mo-0.1Sc (TNZMS) have been comparatively investigated for orthopedic applications. Cold-rolling (CR) and cold-rolling plus solution-treatment (CR+ST) were performed on the as-cast (AC) alloys and their microstructures and material properties were characterized. The impact of Sc addition on the mechanical and corrosion properties, friction and wear behavior, and in vitro cytocompatibility of the TNZMS alloy was assessed. The CR+ST TNZMS alloy exhibited the best combination of properties among all the alloy samples, with a yield strength of 780 MPa, ultimate strength of 809 MPa, elongation of 19%, Young's modulus of 65.4 GPa, and hardness of 265 HV. Electrochemical testing in Hanks' Solution indicated that the CR+ST TNZMS sample also showed the highest corrosion resistance with a corrosion potential of -0.234 V, corrosion current density of 0.07 µA/cm2, and corrosion rate of 1.2 µm/y. Friction and wear testing revealed that the TNZMS alloy showed higher wear resistance compared to the TNZM alloy and the wear resistance of the different samples was ranked CR > CR+ST > AC. Finally, both the CR+ST TNZM and TNZMS showed no-cytotoxicity towards MG-63 cells and the TNZMS exhibited slightly higher cytocompatibility than the TNZM alloy. STATEMENT OF SIGNIFICANCE: This work reports the β-type Ti-24Nb-38Zr-2Mo (TNZM) and Ti-24Nb-38Zr-2Mo-0.1Sc (TNZMS) alloys fabricated by as-cast (AC), cold-rolling (CR), and cold-rolling plus solution-treatment (CR+ST) for potential orthopedic applications. The experimental results showed that the TNZMS alloy exhibited significantly enhanced mechanical, wear, and corrosion properties than those of TNZM alloy; and the CR+ST TNZMS possess a unique combination of the best mechanical and corrosion properties including a yield strength of 780 MPa, ultimate strength of 809 MPa, elongation of 19%, Young's modulus of 65.4 GPa, and corrosion rate of 1.2 µm/y in Hanks' Solution. Both the CR+ST TNZM and TNZMS alloys exhibited non-cytotoxicity towards MG-63 cells and TNZMS showed a higher cytocompatibility than that of TNZM.
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Affiliation(s)
- Xian Tong
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China; Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou 325027, China
| | - Quanxiang Sun
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China
| | - Dechuang Zhang
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China.
| | - Kun Wang
- Department of Material Engineering, Zhejiang Industry & Trade Vocational College, Wenzhou 325003, China
| | - Yilong Dai
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China
| | - Zimu Shi
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China.
| | - Yuncang Li
- School of Engineering, RMIT University, Melbourne, Victoria 3001, Australia
| | - Matthew Dargusch
- Centre for Advanced Materials Processing and Manufacturing (AMPAM), The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Shengbin Huang
- Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou 325027, China
| | - Jianfeng Ma
- Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou 325027, China
| | - Cuie Wen
- School of Engineering, RMIT University, Melbourne, Victoria 3001, Australia.
| | - Jixing Lin
- Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou 325027, China.
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Aydemir D, Dogru S, Alaca BE, Ulusu NN. Impact of the surface modifications and cell culture techniques on the biomechanical properties of PDMS in relation to cell growth behavior. INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2021.1919670] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Duygu Aydemir
- Biochemistry Department, Koç University School of Medicine, Sariyer, Turkey
- Koç University Research Center for Translational Medicine (KUTTAM), Sariyer, Turkey
| | - Sedat Dogru
- Department of Mechanical Engineering, Koç University, Sariyer, Turkey
| | - B. Erdem Alaca
- Department of Mechanical Engineering, Koç University, Sariyer, Turkey
- Surface Science and Technology Center, KUYTAM, Koç University, Sariyer, Turkey
| | - Nuriye Nuray Ulusu
- Biochemistry Department, Koç University School of Medicine, Sariyer, Turkey
- Koç University Research Center for Translational Medicine (KUTTAM), Sariyer, Turkey
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Nazarov D, Zemtsova E, Smirnov V, Mitrofanov I, Maximov M, Yudintceva N, Shevtsov M. The Effects of Chemical Etching and Ultra-Fine Grain Structure of Titanium on MG-63 Cells Response. Metals 2021; 11:510. [DOI: 10.3390/met11030510] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In this work, we study the influence of the surface properties of ultrafine grained (UFG) and coarse grained (CG) titanium on the morphology, viability, proliferation and differentiation of osteoblast-like MG-63 cells. Wet chemical etching in H2SO4/H2O2 and NH4OH/H2O2 solutions was used for producing surfaces with varying morphology, topography, composition and wettability. The topography and morphology have been studied by scanning electron microscopy (SEM) and atomic force microscopy (AFM). The composition was determined by time of flight mass-spectrometry (TOF-SIMS) and X-ray photoelectron spectroscopy (XPS). The results showed that it is possible to obtain samples with different compositions, hydrophilicity, topography and nanoscale or/and microscale structures by changing the etching time and the type of etching solution. It was found that developed topography and morphology can improve spreading and proliferation rate of MG-63 cells. A significant advantage of the samples of the UFG series in comparison with CG in adhesion, proliferation at later stages of cultivation (7 days), higher alkaline phosphatase (ALP) activity and faster achievement of its maximum values was found. However, there is no clear benefit of the UFG series on osteopontin (OPN) expression. All studied samples showed no cytotoxicity towards MG-63 cells and promoted their osteogenic differentiation.
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Sochacka P, Jurczyk MU, Kowalski K, Wirstlein PK, Jurczyk M. Ultrafine-Grained Ti-31Mo-Type Composites with HA and Ag, Ta 2O 5 or CeO 2 Addition for Implant Applications. Materials (Basel) 2021; 14:ma14030644. [PMID: 33573314 PMCID: PMC7866795 DOI: 10.3390/ma14030644] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 01/18/2021] [Accepted: 01/28/2021] [Indexed: 02/07/2023]
Abstract
Ultrafine-grained Ti31Mo alloy and Ti31Mo5HA, Ti31Mo5HA-Ag (or Ta2O5, CeO2) composites with a grain size of approximately 2 μm were produced by the application of mechanical alloying and powder metallurgy. Additionally, the surface of the Ti31Mo alloy was modified. In the first stage, the specimens were immersed in 5M NaOH for 24 h at 60 °C. In the second stage, hydroxyapatite (HA) was deposited on the sample surface. The cathodic deposition at −5 V vs. open circuit potential (OCP) in the electrolyte containing 0.25M CaNa2-EDTA (di-calcium ethylenediaminetetraacetic acid), 0.25M K2HPO4 in 1M NaOH at 120 °C for 2 h was applied. The bulk Ti31Mo alloy is a single β-type phase. In the alkali-modified surface titanium oxide, Ti3O is formed. After hydrothermal treatment, the surface layer mostly consists of the Ca10(PO4)6(OH)2 (81.23%) with about 19% content of CaHPO4·2H2O. Using optical profiler, roughness 2D surface topography parameters were estimated. The in vitro cytocompatibility of synthesized materials was studied. The cell lines of normal human osteoblasts (NHost) and human periodontal ligament fibroblasts (HPdLF) was conducted in the presence of tested biomaterials. Ultrafine-grained Ti-based composites altered with HA and Ag, Ta2O5 or CeO2 have superior biocompatibility than the microcrystalline Ti metal. NHost and HPdLF cells in the contact with the synthesized biomaterial showed stable proliferation activity. Biocompatibility tests carried out indicate that the ultrafine-grained Ti31Mo5HA composites with Ag, Ta2O5, or CeO2 could be a good candidate for implant applications.
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Affiliation(s)
- Patrycja Sochacka
- Institute of Materials Science and Engineering, Poznan University of Technology, Jana Pawła II 24, 61-138 Poznan, Poland; (K.K.); (M.J.)
- Correspondence: ; Tel.: +48-61-665-3508
| | - Mieczyslawa U. Jurczyk
- Division of Mother’s and Child’s Health, Poznan University of Medical Sciences, Polna 33, 60-535 Poznan, Poland;
| | - Kamil Kowalski
- Institute of Materials Science and Engineering, Poznan University of Technology, Jana Pawła II 24, 61-138 Poznan, Poland; (K.K.); (M.J.)
| | - Przemyslaw K. Wirstlein
- Department of Gynaecology and Obstetrics, Division of Reproduction, Poznan University of Medical Sciences, Polna 33, 60-535 Poznan, Poland;
| | - Mieczyslaw Jurczyk
- Institute of Materials Science and Engineering, Poznan University of Technology, Jana Pawła II 24, 61-138 Poznan, Poland; (K.K.); (M.J.)
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Kumar S, Nehra M, Kedia D, Dilbaghi N, Tankeshwar K, Kim KH. Nanotechnology-based biomaterials for orthopaedic applications: Recent advances and future prospects. Materials Science and Engineering: C 2020; 106:110154. [DOI: 10.1016/j.msec.2019.110154] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 08/04/2019] [Accepted: 08/31/2019] [Indexed: 12/13/2022]
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Sochacka P, Miklaszewski A, Kowalski K, Jurczyk M. Influence of the Processing Method on the Properties of Ti-23 at.% Mo Alloy. Metals 2019; 9:931. [DOI: 10.3390/met9090931] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In this paper, binary β type Ti-23 at.% Mo alloys were obtained by arc melting as well as by mechanical alloying and powder metallurgical process with cold powder compaction and sintering or, interchangeably, hot pressing. The influence of the synthesis method on the microstructure and properties of bulk alloys were studied. The produced materials were characterized by an X-ray diffraction technique, scanning electron microscopy and chemical composition determination. Young’s modulus was evaluated with nanoindentation testing method based on the Oliver and Pharr approach. The mechanically alloyed Ti-23 at.% Mo powders, after inductively hot-pressed at 800 °C for 5 min, allowed the formation of single Ti(β) phase alloy. In this case, Young’s modulus and Vickers hardness were 127 GPa and 454 HV0.3, respectively. Among the examined materials, the porous (55%) single-phase scaffold showed the lowest indentation modulus (69.5 GPa). Analytical approach performed in this work focuses also on the surface properties. The estimation includes the corrosion resistance analyzed in the potentiodynamic test, and also some wettability properties as a contact angle, and surface free energy values measured in glycerol and diiodomethane testing fluids. Additionally, surface modification of processed material by micro-arc oxidation and electrophoretic deposition on the chosen samples was investigated. Proposed procedures led to the formation of apatite and fluorapatite layers, which influence both the corrosion resistance and surface wetting properties in comparison to unmodified samples. The realized research shows that a single-phase ultrafine-grained Ti-23 at.% Mo alloy for medical implant applications can be synthesized at a temperature lower than the transition point by the application of hot pressing of mechanically alloyed powders. The material processing, that includes starting powder preparation, bulk alloy transformation, and additional surface treatment functionalization, affect final properties by the obtained phase composition and internal structure.
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Wu Y, Feng F, Xin H, Li K, Tang Z, Guo Y, Qin D, An B, Diao X, Dou C. Fracture Strength and Osseointegration of an Ultrafine-Grained Titanium Mini Dental Implant after Macromorphology Optimization. ACS Biomater Sci Eng 2019; 5:4122-4130. [DOI: 10.1021/acsbiomaterials.9b00406] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yulu Wu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi’an 710032, China
| | - Fan Feng
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi’an 710032, China
| | - Haitao Xin
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi’an 710032, China
| | - Kai Li
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi’an 710032, China
| | - Zhongbin Tang
- School of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, China
| | - Yazhou Guo
- School of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, China
| | - Dongyang Qin
- School of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, China
| | - Baili An
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi’an 710032, China
| | - Xiaoou Diao
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi’an 710032, China
| | - Chenyun Dou
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi’an 710032, China
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Mishchenko O, Filatova V, Vasylyev M, Deineka V, Pogorielov M. Chemical and Structural Characterization of Sandlasted Surface of Dental Implant using ZrO2 Particle with Different Shape. Coatings 2019; 9:223. [DOI: 10.3390/coatings9040223] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The clinical success of dental implantation is associated with the phenomenon of osteointegration. Geometry and topography of the implant surface are critical for the short- and long-term success of an implantation. Modification of the surface of endosseous part of the implant with sandblasting was of special interest for our study. Taking into account the advantages of currently used ceramic abrasives: aluminum oxide, titanium oxide, calcium phosphate, these materials are able to break down during collision with the treated surface, the possibility of incorporation of their residues into the implant surface, as well as the difficulty of removing these residues. This paper aimed to determine the preferred composition and the shape of the abrasive, as well as the treatment regime for ZrO2 sandblasting modification of the surface of the endosseous part of the dental implant. Tetragonal and cubic solid solutions are based on ZrO2, as an abrasive that is applied for zirconium-niobium alloy sandblasting under different pressures. Optical and scanning electron microscopy, the physical and chemical state of the surface of implants as well as contact angle measurement and cell viability were used to assess surface after sandblasting. The results demonstrate the potential of using granular powders that are based on zirconium dioxide as an abrasive to create a rough surface on endosseous part of dental implants made from zirconium-based alloys. It does not lead to a significant change in the chemical composition of the surface layer of the alloy and it does not require subsequent etching in order to remove the abrasive particles. Based on structural and chemical characterization, as well as on cell viability and contact angle measurement, sandblasting by tetragonal ZrO2 powder in 4 atm. and an exposure time of 5 s provided the best surface for dental implant application.
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14
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Pippenger BE, Rottmar M, Kopf BS, Stübinger S, Dalla Torre FH, Berner S, Maniura-Weber K. Surface modification of ultrafine-grained titanium: Influence on mechanical properties, cytocompatibility, and osseointegration potential. Clin Oral Implants Res 2019; 30:99-110. [PMID: 30521101 DOI: 10.1111/clr.13396] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 11/19/2018] [Accepted: 11/21/2018] [Indexed: 01/08/2023]
Abstract
OBJECTIVE The main objective of this study was to demonstrate that dental implants made from ultrafine-grain titanium (UFG-Ti) can be created that replicate state of the art surfaces of standard coarse-grain titanium (Ti), showing excellent cytocompatibility and osseointegration potential while also providing improved mechanical properties. MATERIAL AND METHODS UFG-Ti was prepared by continuous equal channel angular processing (ECAP), and surfaces were treated by sandblasting and acid etching. Mechanical properties (tensile and fatigue strength), wettability, and roughness parameters were evaluated. Human trabecular bone-derived osteoblast precursor cells (HBCs) were cultured on all samples to examine cytocompatibility and mineralization after 4 and 28 days, respectively. Biomechanical pull-out measurements were performed in a rabbit in vivo model 4 weeks after implantation. RESULTS Both yield and tensile strength as well as fatigue endurance were higher for UFG-Ti compared to Ti by 40%, 45%, and 34%, respectively. Fatigue endurance was slightly reduced following surface treatment. Existing surface treatment protocols could be applied to UFG-Ti and resulted in similar roughness and wettability as for standard Ti. Cell attachment and spreading were comparable on all samples, but mineralization was higher for the surfaces with hydrophilic treatment with no significant difference between UFG-Ti and Ti. Pull-out tests revealed that osseointegration of surface-treated UFG-Ti was found to be similar to that of surface-treated Ti. CONCLUSION It could be demonstrated that existing surface treatments for Ti can be translated to UFG-Ti and, furthermore, that dental implants made from surface-treated UFG-Ti exhibit superior mechanical properties while maintaining cytocompatibility and osseointegration potential.
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Affiliation(s)
| | - Markus Rottmar
- Laboratory for Biointerfaces, Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen, Switzerland
| | - Brigitte S Kopf
- Laboratory for Biointerfaces, Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen, Switzerland
| | - Stefan Stübinger
- High-tech Research Center of Cranio-Maxillofacial Surgery, University of Basel, Basel, Switzerland
| | | | | | - Katharina Maniura-Weber
- Laboratory for Biointerfaces, Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen, Switzerland
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15
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Günay-Bulutsuz A, Berrak Ö, Yeprem HA, Arisan ED, Yurci ME. Biological responses of ultrafine grained pure titanium and their sand blasted surfaces. Materials Science and Engineering: C 2018; 91:382-388. [DOI: 10.1016/j.msec.2018.05.056] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 04/10/2018] [Accepted: 05/16/2018] [Indexed: 01/08/2023]
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16
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Zhu C, Lv Y, Qian C, Ding Z, Jiao T, Gu X, Lu E, Wang L, Zhang F. Microstructures, mechanical, and biological properties of a novel Ti-6V-4V/zinc surface nanocomposite prepared by friction stir processing. Int J Nanomedicine 2018; 13:1881-1898. [PMID: 29636607 PMCID: PMC5880573 DOI: 10.2147/ijn.s154260] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background The interaction between the material and the organism affects the survival rate of the orthopedic or dental implant in vivo. Friction stir processing (FSP) is considered a new solid-state processing technology for surface modification. Purpose This study aims to strengthen the surface mechanical properties and promote the osteogenic capacity of the biomaterial by constructing a Ti-6Al-4V (TC4)/zinc (Zn) surface nanocomposites through FSP. Methods FSP was used to modify the surface of TC4. The microstructures and mechanical properties were analyzed by scanning electron microscopy, transmission electron microscopy, nanoindentation and Vickers hardness. The biological properties of the modified surface were evaluated by the in vitro and in vivo study. Results The results showed that nanocrystalline and numerous β regions, grain boundary α phase, coarser acicular α phase and finer acicular martensite α′ appeared because of the severe plastic deformation caused by FSP, resulting in a decreased elastic modulus and an increased surface hardness. With the addition of Zn particles and the enhancement of hydrophilicity, the biocompatibility was greatly improved in terms of cell adhesion and proliferation. The in vitro osteogenic differentiation of rat bone marrow stromal cells and rapid in vivo osseointegration were enhanced on the novel TC4/Zn metal matrix nanocomposite surface. Conclusion These findings suggest that this novel TC4/Zn surface nanocomposite achieved by FSP has significantly improved mechanical properties and biocompatibility, in addition to promoting osseointegration and thus has potential for dental and orthopedic applications.
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Affiliation(s)
- Chenyuan Zhu
- Department of Prosthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine.,Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology
| | - Yuting Lv
- State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai.,College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao, People's Republic of China
| | - Chao Qian
- Department of Prosthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine.,Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology
| | - Zihao Ding
- State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai.,Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Ting Jiao
- Department of Prosthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine.,Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology
| | - Xiaoyu Gu
- Department of Prosthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine.,Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology
| | - Eryi Lu
- Department of Stomatology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Liqiang Wang
- State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai
| | - Fuqiang Zhang
- Department of Prosthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine.,Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology
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17
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Elbourne A, Crawford RJ, Ivanova EP. Nano-structured antimicrobial surfaces: From nature to synthetic analogues. J Colloid Interface Sci 2017; 508:603-616. [DOI: 10.1016/j.jcis.2017.07.021] [Citation(s) in RCA: 170] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 07/04/2017] [Accepted: 07/05/2017] [Indexed: 01/10/2023]
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18
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Perumal G, Ayyagari A, Chakrabarti A, Kannan D, Pati S, Grewal HS, Mukherjee S, Singh S, Arora HS. Friction Stir Processing of Stainless Steel for Ascertaining Its Superlative Performance in Bioimplant Applications. ACS Appl Mater Interfaces 2017; 9:36615-36631. [PMID: 28972737 DOI: 10.1021/acsami.7b11064] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Substrate-cell interactions for a bioimplant are driven by substrate's surface characteristics. In addition, the performance of an implant and resistance to degradation are primarily governed by its surface properties. A bioimplant typically degrades by wear and corrosion in the physiological environment, resulting in metallosis. Surface engineering strategies for limiting degradation of implants and enhancing their performance may reduce or eliminate the need for implant removal surgeries and the associated cost. In the current study, we tailored the surface properties of stainless steel using submerged friction stir processing (FSP), a severe plastic deformation technique. FSP resulted in significant microstructural refinement from 22 μm grain size for the as-received alloy to 0.8 μm grain size for the processed sample with increase in hardness by nearly 1.5 times. The wear and corrosion behavior of the processed alloy was evaluated in simulated body fluid. The processed sample demonstrated remarkable improvement in both wear and corrosion resistance, which is explained by surface strengthening and formation of a highly stable passive layer. The methylthiazol tetrazolium assay demonstrated that the processed sample is better in supporting cell attachment, proliferation with minimal toxicity, and hemolysis. The athrombogenic characteristic of the as-received and processed samples was evaluated by fibrinogen adsorption and platelet adhesion via the enzyme-linked immunosorbent assay and lactate dehydrogenase assay, respectively. The processed sample showed less platelet and fibrinogen adhesion compared with the as-received alloy, signifying its high thromboresistance. The current study suggests friction stir processing to be a versatile toolbox for enhancing the performance and reliability of currently used bioimplant materials.
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Affiliation(s)
| | - A Ayyagari
- Department of Materials Science and Engineering, University of North Texas , Denton, Texas 76203, United States
| | | | | | | | | | - S Mukherjee
- Department of Materials Science and Engineering, University of North Texas , Denton, Texas 76203, United States
| | - S Singh
- Special Center for Molecular Medicine, Jawaharlal Nehru University , New Delhi 110067, India
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19
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Tsukanaka M, Fujibayashi S, Takemoto M, Matsushita T, Kokubo T, Nakamura T, Sasaki K, Matsuda S. Bioactive treatment promotes osteoblast differentiation on titanium materials fabricated by selective laser melting technology. Dent Mater J 2017; 35:118-25. [PMID: 26830832 DOI: 10.4012/dmj.2015-127] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Selective laser melting (SLM) technology is useful for the fabrication of porous titanium implants with complex shapes and structures. The materials fabricated by SLM characteristically have a very rough surface (average surface roughness, Ra=24.58 µm). In this study, we evaluated morphologically and biochemically the specific effects of this very rough surface and the additional effects of a bioactive treatment on osteoblast proliferation and differentiation. Flat-rolled titanium materials (Ra=1.02 µm) were used as the controls. On the treated materials fabricated by SLM, we observed enhanced osteoblast differentiation compared with the flat-rolled materials and the untreated materials fabricated by SLM. No significant differences were observed between the flat-rolled materials and the untreated materials fabricated by SLM in their effects on osteoblast differentiation. We concluded that the very rough surface fabricated by SLM had to undergo a bioactive treatment to obtain a positive effect on osteoblast differentiation.
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Affiliation(s)
- Masako Tsukanaka
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University
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20
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Dimić I, Cvijović‐Alagić I, Hohenwarter A, Pippan R, Kojić V, Bajat J, Rakin M. Electrochemical and biocompatibility examinations of high‐pressure torsion processed titanium and
T
i–13
N
b–13
Z
r alloy. J Biomed Mater Res B Appl Biomater 2017; 106:1097-1107. [DOI: 10.1002/jbm.b.33919] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 04/07/2017] [Accepted: 04/22/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Ivana Dimić
- University of Belgrade, Faculty of Technology and Metallurgy11120Belgrade Serbia
| | | | - Anton Hohenwarter
- Department of Materials PhysicsMontanuniversität Leoben8700Leoben Austria
| | - Reinhard Pippan
- Austrian Academy of Sciences, Erich Schmid Institute of Materials Science8700Leoben Austria
| | - Vesna Kojić
- Oncology Institute of Vojvodina21204Sremska Kamenica Serbia
| | - Jelena Bajat
- University of Belgrade, Faculty of Technology and Metallurgy11120Belgrade Serbia
| | - Marko Rakin
- University of Belgrade, Faculty of Technology and Metallurgy11120Belgrade Serbia
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21
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Baek SM, Shin MH, Moon J, Jung HS, Lee SA, Hwang W, Yeom JT, Hahn SK, Kim HS. Superior Pre-Osteoblast Cell Response of Etched Ultrafine-Grained Titanium with a Controlled Crystallographic Orientation. Sci Rep 2017; 7:44213. [PMID: 28266643 PMCID: PMC5339782 DOI: 10.1038/srep44213] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 02/03/2017] [Indexed: 11/24/2022] Open
Abstract
Ultrafine-grained (UFG) Ti for improved mechanical performance as well as its surface modification enhancing biofunctions has attracted much attention in medical industries. Most of the studies on the surface etching of metallic biomaterials have focused on surface topography and wettability but not crystallographic orientation, i.e., texture, which influences the chemical as well as the physical properties. In this paper, the influences of texture and grain size on roughness, wettability, and pre-osteoblast cell response were investigated in vitro after HF etching treatment. The surface characteristics and cell behaviors of ultrafine, fine, and coarse-grained Ti were examined after the HF etching. The surface roughness during the etching treatment was significantly increased as the orientation angle from the basal pole was increased. The cell adhesion tendency of the rough surface was promoted. The UFG Ti substrate exhibited a higher texture energy state, rougher surface, enhanced hydrophilic wettability, and better cell adhesion and proliferation behaviors after etching than those of the coarse- and fine-grained Ti substrates. These results provide a new route for enhancing both mechanical and biological performances using etching after grain refinement of Ti.
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Affiliation(s)
- Seung Mi Baek
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Myeong Hwan Shin
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Jongun Moon
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Ho Sang Jung
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea.,Korea Institute of Materials Science, Changwon, 51508, Republic of Korea
| | - See Am Lee
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - WoonBong Hwang
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Jong Taek Yeom
- Korea Institute of Materials Science, Changwon, 51508, Republic of Korea
| | - Sei Kwang Hahn
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Hyoung Seop Kim
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea.,Center for High Entropy Alloys, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
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22
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Medvedev A, Neumann A, Ng H, Lapovok R, Kasper C, Lowe T, Anumalasetty V, Estrin Y. Combined effect of grain refinement and surface modification of pure titanium on the attachment of mesenchymal stem cells and osteoblast-like SaOS-2 cells. Materials Science and Engineering: C 2017; 71:483-497. [DOI: 10.1016/j.msec.2016.10.035] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 09/17/2016] [Accepted: 10/18/2016] [Indexed: 01/17/2023]
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23
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Zhang Q, Lin S, Li Q, Zhao D, Cai X. Cellular Response to Surface Topography and Substrate Stiffness. Stem Cell Biology and Regenerative Medicine 2017. [DOI: 10.1007/978-3-319-51617-2_3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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24
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An B, Li Z, Diao X, Xin H, Zhang Q, Jia X, Wu Y, Li K, Guo Y. In vitro and in vivo studies of ultrafine-grain Ti as dental implant material processed by ECAP. Mater Sci Eng C Mater Biol Appl 2016; 67:34-41. [PMID: 27287096 DOI: 10.1016/j.msec.2016.04.105] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 04/06/2016] [Accepted: 04/30/2016] [Indexed: 11/18/2022]
Abstract
The aim of this study was to investigate the surface characterization of ultrafine-grain pure titanium (UFG-Ti) after sandblasting and acid-etching (SLA) and to evaluate its biocompatibility as dental implant material in vitro and in vivo. UFG-Ti was produced by equal channel angular pressing (ECAP) using commercially pure titanium (CP-Ti). Microstructure and yield strength were investigated. The morphology, wettability and roughness of the specimens were analyzed after they were modified by SLA. MC3T3-E1 osteoblasts were seeded onto the specimens to evaluate its biocompatibility in vitro. For the in vivo study, UFG-Ti implants after SLA were embedded into the femurs of New Zealand rabbits. Osseointegration was investigated though micro-CT analysis, histological assessment and pull-out test. The control group was CP-Ti. UFG-Ti with enhanced mechanical properties was produced by four passes of ECAP in BC route at room temperature. After SLA modification, the hierarchical porous structure on its surface exhibited excellent wettability. The adhesion, proliferation and viability of cells cultured on the UFG-Ti were superior to that of CP-Ti. In the in vivo study, favorable osseointegration occurred between the implant and bone in CP and UFG-Ti groups. The combination intensity of UF- Ti with bone was higher according to the pull-out test. This study supports the claim that UFG-Ti has grain refinement with outstanding mechanical properties and, with its excellent biocompatibility, has potential for use as dental implant material.
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Affiliation(s)
- Baili An
- State Key Laboratory of Military Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China; National Clinical Research Center for Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China; Shannxi Key Laboratory of Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China
| | - Zhirui Li
- State Key Laboratory of Military Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China; National Clinical Research Center for Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China; Shannxi Key Laboratory of Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China
| | - Xiaoou Diao
- State Key Laboratory of Military Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China; National Clinical Research Center for Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China; Shannxi Key Laboratory of Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China
| | - Haitao Xin
- State Key Laboratory of Military Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China; National Clinical Research Center for Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China; Shannxi Key Laboratory of Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China.
| | - Qiang Zhang
- State Key Laboratory of Military Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China; National Clinical Research Center for Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China; Shannxi Key Laboratory of Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China
| | - Xiaorui Jia
- State Key Laboratory of Military Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China; National Clinical Research Center for Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China; Shannxi Key Laboratory of Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China
| | - Yulu Wu
- State Key Laboratory of Military Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China; National Clinical Research Center for Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China; Shannxi Key Laboratory of Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China
| | - Kai Li
- State Key Laboratory of Military Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China; National Clinical Research Center for Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China; Shannxi Key Laboratory of Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China
| | - Yazhou Guo
- School of Aeronautics, Northwestern Polytechnical University, Xi'an 710032, China
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25
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Medvedev A, Ng H, Lapovok R, Estrin Y, Lowe T, Anumalasetty V. Effect of bulk microstructure of commercially pure titanium on surface characteristics and fatigue properties after surface modification by sand blasting and acid-etching. J Mech Behav Biomed Mater 2016; 57:55-68. [DOI: 10.1016/j.jmbbm.2015.11.035] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 11/30/2015] [Accepted: 11/30/2015] [Indexed: 10/22/2022]
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26
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Qi Y, Contreras KG, Jung HD, Kim HE, Lapovok R, Estrin Y. Ultrafine-grained porous titanium and porous titanium/magnesium composites fabricated by space holder-enabled severe plastic deformation. Materials Science and Engineering: C 2016; 59:754-765. [DOI: 10.1016/j.msec.2015.10.070] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 10/15/2015] [Accepted: 10/23/2015] [Indexed: 10/22/2022]
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27
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Yilmazer H, Şen M, Niinomi M, Nakai M, Huihong L, Cho K, Todaka Y, Shiku H, Matsue T. Developing biomedical nano-grained β-type titanium alloys using high pressure torsion for improved cell adherence. RSC Adv 2016. [DOI: 10.1039/c5ra23454a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Proper surface characteristics for a titanium implant are crucial for the formation of different cellular protrusions known as filopodia and lamellipodia, both of which have a significant impact on cell attachment, spreading, and proliferation.
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Affiliation(s)
- Hakan Yilmazer
- Department of Metallurgical and Materials Engineering
- Yildiz Technical University
- Istanbul 34210
- Turkey
- Institute for Materials Research
| | - Mustafa Şen
- Department of Biomedical Engineering
- Izmir Katip Celebi University
- Izmir 35620
- Turkey
| | - Mitsuo Niinomi
- Institute for Materials Research
- Tohoku University
- Sendai 980-8577
- Japan
| | - Masaaki Nakai
- Institute for Materials Research
- Tohoku University
- Sendai 980-8577
- Japan
| | - Liu Huihong
- Institute for Materials Research
- Tohoku University
- Sendai 980-8577
- Japan
| | - Ken Cho
- Division of Materials and Manufacturing Science
- Graduate School of Engineering
- Osaka University
- Osaka 565-0871
- Japan
| | - Yoshikazu Todaka
- Department of Mechanical Engineering
- Toyohashi University of Technology
- Toyohashi 441-8580
- Japan
| | - Hitoshi Shiku
- Graduate School of Environmental Studies
- Tohoku University
- Sendai 980-8579
- Japan
| | - Tomokazu Matsue
- Graduate School of Environmental Studies
- Tohoku University
- Sendai 980-8579
- Japan
- WPI-Advanced Institute for Materials Research
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28
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Jurczyk K, Miklaszewski A, Jurczyk MU, Jurczyk M. Development of β Type Ti23Mo-45S5 Bioglass Nanocomposites for Dental Applications. Materials (Basel) 2015; 8:8032-8046. [PMID: 28793695 PMCID: PMC5458847 DOI: 10.3390/ma8125441] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 11/13/2015] [Accepted: 11/16/2015] [Indexed: 01/28/2023]
Abstract
Titanium β-type alloys attract attention as biomaterials for dental applications. The aim of this work was the synthesis of nanostructured β type Ti23Mo-x wt % 45S5 Bioglass (x = 0, 3 and 10) composites by mechanical alloying and powder metallurgy methods and their characterization. The crystallization of the amorphous material upon annealing led to the formation of a nanostructured β type Ti23Mo alloy with a grain size of approximately 40 nm. With the increase of the 45S5 Bioglass contents in Ti23Mo, nanocomposite increase of the α-phase is noticeable. The electrochemical treatment in phosphoric acid electrolyte resulted in a porous surface, followed by bioactive ceramic Ca-P deposition. Corrosion resistance potentiodynamic testing in Ringer solution at 37 °C showed a positive effect of porosity and Ca-P deposition on nanostructured Ti23Mo 3 wt % 45S5 Bioglass nanocomposite. The contact angles of glycerol on the nanostructured Ti23Mo alloy were determined and show visible decrease for bulk Ti23Mo 3 wt % 45S5 Bioglass and etched Ti23Mo 3 wt % 45S5 Bioglass nanocomposites. In vitro tests culture of normal human osteoblast cells showed very good cell proliferation, colonization, and multilayering. The present study demonstrated that porous Ti23Mo 3 wt % 45S5 Bioglass nanocomposite is a promising biomaterial for bone tissue engineering.
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Affiliation(s)
- Karolina Jurczyk
- Department of Conservative Dentistry and Periodontology, Poznan University of Medical Sciences, Bukowska 70, Poznan 60-812, Poland.
| | - Andrzej Miklaszewski
- Institute of Materials Science and Engineering, Poznan University of Technology, Jana Pawla II 24, Poznan 61-138, Poland.
| | - Mieczyslawa U Jurczyk
- Division of Mother's and Child's Health, Poznan University of Medical Sciences, Polna 33, Poznan 60-535, Poland.
| | - Mieczyslaw Jurczyk
- Institute of Materials Science and Engineering, Poznan University of Technology, Jana Pawla II 24, Poznan 61-138, Poland.
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Jurczyk K, Adamek G, Kubicka MM, Jakubowicz J, Jurczyk M. Nanostructured Titanium-10 wt% 45S5 Bioglass-Ag Composite Foams for Medical Applications. Materials (Basel) 2015; 8:1398-1412. [PMID: 28788008 PMCID: PMC5507049 DOI: 10.3390/ma8041398] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 03/11/2015] [Accepted: 03/17/2015] [Indexed: 11/16/2022]
Abstract
The article presents an investigation on the effectiveness of nanostructured titanium-10 wt% 45S5 Bioglass-1 wt% Ag composite foams as a novel class of antibacterial materials for medical applications. The Ti-based composite foams were prepared by the combination of mechanical alloying and a "space-holder" sintering process. In the first step, the Ti-10 wt% 45S5 Bioglass-1 wt% Ag powder synthesized by mechanical alloying and annealing mixed with 1.0 mm diameter of saccharose crystals was finally compacted in the form of pellets. In the next step, the saccharose crystals were dissolved in water, leaving open spaces surrounded by metallic-bioceramic scaffold. The sintering of the scaffold leads to foam formation. It was found that 1:1 Ti-10 wt% 45S5 Bioglass-1 wt% Ag/sugar ratio leads to porosities of about 70% with pore diameter of about 0.3-1.1 mm. The microstructure, corrosion resistance in Ringer's solution of the produced foams were investigated. The value of the compression strength for the Ti-10 wt% 45S5 Bioglass-1 wt% Ag foam with 70% porosity was 1.5 MPa and the Young's modulus was 34 MPa. Silver modified Ti-10 wt% 45S5 Bioglass composites possess excellent antibacterial activities against Staphylococcus aureus. Porous Ti-10 wt% 45S5 Bioglass-1 wt% foam could be a possible candidate for medical implants applications.
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Affiliation(s)
- Karolina Jurczyk
- Department of Conservative Dentistry and Periodontology, Poznan University of Medical Sciences, Bukowska 70 St., 60-812 Poznan, Poland.
| | - Grzegorz Adamek
- Institute of Materials Science and Engineering, Poznan University of Technology, Jana Pawla II 24 St., 61-138 Poznan, Poland.
| | - Marcelina M Kubicka
- Department of Genetics and Pharmaceutical Microbiology, Faculty of Pharmacy, Poznan University of Medical Sciences, Swiecickiego 4 St., 60-781 Poznan, Poland.
| | - Jaroslaw Jakubowicz
- Institute of Materials Science and Engineering, Poznan University of Technology, Jana Pawla II 24 St., 61-138 Poznan, Poland.
| | - Mieczyslaw Jurczyk
- Institute of Materials Science and Engineering, Poznan University of Technology, Jana Pawla II 24 St., 61-138 Poznan, Poland.
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Goriainov V, Cook R, M. Latham J, G. Dunlop D, Oreffo RO. Bone and metal: an orthopaedic perspective on osseointegration of metals. Acta Biomater 2014; 10:4043-57. [PMID: 24932769 DOI: 10.1016/j.actbio.2014.06.004] [Citation(s) in RCA: 124] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Revised: 06/02/2014] [Accepted: 06/04/2014] [Indexed: 12/12/2022]
Abstract
The area of implant osseointegration is of major importance, given the predicted significant rise in the number of orthopaedic procedures and an increasingly ageing population. Osseointegration is a complex process involving a number of distinct mechanisms affected by the implant bulk properties and surface characteristics. Our understanding and ability to modify these mechanisms through alterations in implant design is continuously expanding. The following review considers the main aspects of material and surface alterations in metal implants, and the extent of their subsequent influence on osseointegration. Clinically, osseointegration results in asymptomatic stable durable fixation of orthopaedic implants. The complexity of achieving this outcome through incorporation and balance of contributory factors is highlighted through a clinical case report.
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Bagherifard S, Ghelichi R, Khademhosseini A, Guagliano M. Cell response to nanocrystallized metallic substrates obtained through severe plastic deformation. ACS Appl Mater Interfaces 2014; 6:7963-7985. [PMID: 24755013 DOI: 10.1021/am501119k] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Cell-substrate interface is known to control the cell response and subsequent cell functions. Among the various biophysical signals, grain structure, which indicates the repeating arrangement of atoms in the material, has also proved to play a role of significant importance in mediating the cell activities. Moreover, refining the grain size through severe plastic deformation is known to provide the processed material with novel mechanical properties. The potential application of such advanced materials as biomedical implants has recently been evaluated by investigating the effect of different substrate grain sizes on a wide variety of cell activities. In this review, recent advances in biomedical applications of severe plastic deformation techniques are highlighted with special attention to the effect of the obtained nano/ultra-fine-grain size on cell-substrate interactions. Various severe plastic deformation techniques used for this purpose are discussed presenting a brief description of the mechanism for each process. The results obtained for each treatment on cell morphology, adhesion, proliferation, and differentiation, as well as the in vivo studies, are discussed. Finally, the advantages and challenges regarding the application of these techniques to produce multifunctional bio-implant materials are addressed.
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Affiliation(s)
- Sara Bagherifard
- Department of Mechanical Engineering, Politecnico di Milano , Via G. La Masa, 1, 20156, Milan, Italy
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Lin Z, Wang L, Xue X, Lu W, Qin J, Zhang D. Microstructure evolution and mechanical properties of a Ti–35Nb–3Zr–2Ta biomedical alloy processed by equal channel angular pressing (ECAP). Materials Science and Engineering: C 2013; 33:4551-61. [DOI: 10.1016/j.msec.2013.07.010] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2013] [Revised: 06/16/2013] [Accepted: 07/10/2013] [Indexed: 11/25/2022]
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Hoseini M, Bocher P, Shahryari A, Azari F, Szpunar JA, Vali H. On the importance of crystallographic texture in the biocompatibility of titanium based substrate. J Biomed Mater Res A 2013; 102:3631-8. [DOI: 10.1002/jbm.a.35028] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Revised: 10/22/2013] [Accepted: 10/31/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Majid Hoseini
- École de Technologie Supérieure; Montréal Quebec Canada
| | | | | | - Fereshteh Azari
- Department of Anatomy and Cell Biology; McGill University; Montreal Quebec Canada
| | - Jerzy A. Szpunar
- Department of Mechanical Engineering; University of Saskatchewan; Saskatoon Saskatchewan Canada
| | - Hojatollah Vali
- Department of Anatomy and Cell Biology; McGill University; Montreal Quebec Canada
- Facility of Electron Microscopy Research; McGill University; Montreal Quebec Canada
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Estrin Y, Kim HE, Lapovok R, Ng HP, Jo JH. Mechanical strength and biocompatibility of ultrafine-grained commercial purity titanium. Biomed Res Int 2013; 2013:914764. [PMID: 23936857 DOI: 10.1155/2013/914764] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Accepted: 06/06/2013] [Indexed: 11/28/2022]
Abstract
The effect of grain refinement of commercial purity titanium by equal channel angular pressing (ECAP) on its mechanical performance and bone tissue regeneration is reported. In vivo studies conducted on New Zealand white rabbits did not show an enhancement of biocompatibility of ECAP-modified titanium found earlier by in vitro testing. However, the observed combination of outstanding mechanical properties achieved by ECAP without a loss of biocompatibility suggests that this is a very promising processing route to bioimplant manufacturing. The study thus supports the expectation that commercial purity titanium modified by ECAP can be seen as an excellent candidate material for bone implants suitable for replacing conventional titanium alloy implants.
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Dheda SS, Kim YK, Melnyk C, Liu W, Mohamed FA. Corrosion and in vitro biocompatibility properties of cryomilled-spark plasma sintered commercially pure titanium. J Mater Sci Mater Med 2013; 24:1239-1249. [PMID: 23423650 DOI: 10.1007/s10856-013-4889-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2012] [Accepted: 02/08/2013] [Indexed: 06/01/2023]
Abstract
Ti alloys, such as Ti6Al4V, are currently used in biomedical and dental implant applications. Ti alloys are used because they are stronger than commercially pure (CP) Ti due to the presence of alloying elements. However, toxicity of alloying elements during long-term use of implants is of concern. Another means of increasing the strength of materials is grain size refinement. In this study, ultrafine-grained (UFG, ~250 nm to 1 μm) CP Ti was produced by cryomilling followed by spark plasma sintering (SPS). Electrochemical impedance spectroscopy (EIS) and cell culture experiments were performed to compare the corrosion and biocompatibility properties of coarse grained (CG) Ti and UFG Ti. It was found that UFG Ti exhibited corrosion resistance comparable to CG Ti in Ringers solution. In addition, UFG Ti exhibited a reduced inflammatory response and enhanced cell adhesion compared to CG Ti. Investigation of surface roughness provided an explanation for enhanced cell adhesion.
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Affiliation(s)
- Shehreen S Dheda
- Department of Chemical Engineering and Materials Science, University of California, Irvine, CA 92697-2575, USA
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Webb HK, Boshkovikj V, Fluke CJ, Truong VK, Hasan J, Baulin VA, Lapovok R, Estrin Y, Crawford RJ, Ivanova EP. Bacterial attachment on sub-nanometrically smooth titanium substrata. Biofouling 2013; 29:163-170. [PMID: 23327438 DOI: 10.1080/08927014.2012.757697] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Despite the volume of work that has been conducted on the topic, the role of surface topography in mediating bacterial cell adhesion is not well understood. The primary reason for this lack of understanding is the relatively limited extent of topographical characterisation employed in many studies. In the present study, the topographies of three sub-nanometrically smooth titanium (Ti) surfaces were comprehensively characterised, using nine individual parameters that together describe the height, shape and distribution of their surface features. This topographical analysis was then correlated with the adhesion behaviour of the pathogenic bacteria Staphylococcus aureus and Pseudomonas aeruginosa, in an effort to understand the role played by each aspect of surface architecture in influencing bacterial attachment. While P. aeruginosa was largely unable to adhere to any of the three sub-nanometrically smooth Ti surfaces, the extent of S. aureus cell attachment was found to be greater on surfaces with higher average, RMS and maximum roughness and higher surface areas. The cells also attached in greater numbers to surfaces that had shorter autocorrelation lengths and skewness values that approached zero, indicating a preference for less ordered surfaces with peak heights and valley depths evenly distributed around the mean plane. Across the sub-nanometrically smooth range of surfaces tested, it was shown that S. aureus more easily attached to surfaces with larger features that were evenly distributed between peaks and valleys, with higher levels of randomness. This study demonstrated that the traditionally employed amplitudinal roughness parameters are not the only determinants of bacterial adhesion, and that spatial parameters can also be used to predict the extent of attachment.
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Affiliation(s)
- H K Webb
- Faculty of Life and Social Sciences, Swinburne University of Technology, Hawthorn, Australia
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Novin M, Faghihi S. Mouse bone marrow-derived mesenchymal stem cell response to nanostructured titanium substrates produced by high-pressure torsion. SURF INTERFACE ANAL 2012. [DOI: 10.1002/sia.5101] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Mana Novin
- Tissue Engineering and Biomaterials Division; National Institute of Genetic Engineering and Biotechnology (NIGEB); PO box 14155-6343; Tehran; Iran
| | - Shahab Faghihi
- Tissue Engineering and Biomaterials Division; National Institute of Genetic Engineering and Biotechnology (NIGEB); PO box 14155-6343; Tehran; Iran
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Bazaka K, Jacob MV, Crawford RJ, Ivanova EP. Efficient surface modification of biomaterial to prevent biofilm formation and the attachment of microorganisms. Appl Microbiol Biotechnol 2012; 95:299-311. [DOI: 10.1007/s00253-012-4144-7] [Citation(s) in RCA: 169] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2012] [Revised: 04/27/2012] [Accepted: 04/28/2012] [Indexed: 02/07/2023]
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Zhao C, Cao P, Ji W, Han P, Zhang J, Zhang F, Jiang Y, Zhang X. Hierarchical titanium surface textures affect osteoblastic functions. J Biomed Mater Res A 2011; 99:666-75. [DOI: 10.1002/jbm.a.33239] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2011] [Revised: 07/10/2011] [Accepted: 07/27/2011] [Indexed: 01/26/2023]
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Lindhorst D, Tavassol F, von See C, Schumann P, Laschke MW, Harder Y, Bormann KH, Essig H, Kokemüller H, Kampmann A, Voss A, Mülhaupt R, Menger MD, Gellrich NC, Rücker M. Effects of VEGF loading on scaffold-confined vascularization. J Biomed Mater Res A 2011; 95:783-92. [PMID: 20725981 DOI: 10.1002/jbm.a.32902] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Adequate vascularization of tissue-engineered constructs remains a major challenge in bone grafting. In view of this, we loaded ß-tricalcium-phosphate (ß-TCP) and porous poly(L-lactide-co-glycolide) (PLGA) scaffolds via collagen coating with vascular endothelial growth factor (VEGF) and studied whether the VEGF loading improves scaffold angiogenesis and vascularization. Dorsal skinfold chambers were implanted into 48 balb/c mice, which were assigned to 6 groups (n = 8 each). Uncoated (controls), collagen-coated, and additionally VEGF-loaded PLGA and ß-TCP scaffolds were inserted into the chambers. Angiogenesis, neovascularization, and leukocyte-endothelial cell interaction were analyzed repeatedly during a 14-day observation period using intravital fluorescence microscopy. Furthermore, VEGF release from PLGA und ß-TCP scaffolds was studied by ELISA. Micromorphology was studied from histological specimens. Unloaded ß-TCP scaffolds showed an accelerated and increased angiogenic response when compared with unloaded PLGA scaffolds. In vitro, PLGA released significantly higher amounts of VEGF compared with ß-TCP at the first two days resulting in a rapid drop of the released amount at the following days up to day 7 where the VEGF release was negligible. Nonetheless, in vivo VEGF loading increased neovascularization, especially in ß-TCP scaffolds. This increased vascularization was associated with a temporary leukocytic response with pronounced leukocyte-endothelial cell interaction at days 3 and 6. Histology revealed adequate host tissue response and engraftment of both ß-TCP and PLGA scaffolds. Our study demonstrates that ß-TCP scaffolds offer more suitable conditions for vascularization than PLGA scaffolds, in particular if they are loaded with VEGF.
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Affiliation(s)
- Daniel Lindhorst
- Department of Oral and Maxillofacial Surgery, Hannover Medical School, Hannover, Germany
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Abstract
Creating a small amount of ultrafine grained metals by severe plastic deformation, for example using equal channel angular pressing, is possible in many research laboratories. However, industrial production of these materials is lagging behind because of the lack of industrially viable severe plastic deformation processes. One attempt to change this situation is based on the concept of incremental equal channel angular pressing developed by the University of Strathclyde and Warsaw University of Technology. The paper describes the path the researchers took to develop the process starting from finite element simulation, through tool design and process implementation, to material characterisation. Examples of various process configurations, which enable obtaining UFG bars, plates and sheets are given and possible future developments discussed.
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Estrin Y, Ivanova EP, Michalska A, Truong VK, Lapovok R, Boyd R. Accelerated stem cell attachment to ultrafine grained titanium. Acta Biomater 2011; 7:900-6. [PMID: 20887818 DOI: 10.1016/j.actbio.2010.09.033] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2010] [Revised: 09/23/2010] [Accepted: 09/24/2010] [Indexed: 10/19/2022]
Abstract
Commercial purity titanium with an average grain size in the low sub-micron range was produced by equal channel angular pressing (ECAP). Attachment of human bone marrow-derived mesenchymal stem cells (hMSCs) to the surface of conventional coarse grained and ECAP-modified titanium was studied. It was demonstrated that the attachment and spreading of hMSCs in the initial stages (up to 24h) of culture was enhanced by grain refinement. Surface characterization by a range of techniques showed that the main factor responsible for the observed acceleration of hMSC attachment and spreading on titanium due to grain refinement in the bulk is the attendant changes in surface topography on the nanoscale. These results indicate that, in addition to its superior mechanical properties, ECAP-modified titanium possesses improved biocompatibility, which makes it to a potent candidate for applications in medical implants.
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Truong VK, Rundell S, Lapovok R, Estrin Y, Wang JY, Berndt CC, Barnes DG, Fluke CJ, Crawford RJ, Ivanova EP. Effect of ultrafine-grained titanium surfaces on adhesion of bacteria. Appl Microbiol Biotechnol 2009; 83:925-37. [DOI: 10.1007/s00253-009-1944-5] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2009] [Revised: 03/03/2009] [Accepted: 03/03/2009] [Indexed: 11/28/2022]
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