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Tang J, Li H, Guo M, Zhao Z, Liu H, Ren Y, Wang J, Cui X, Shen Y, Jin H, Zhao Y, Xiong T. Enhanced spreading, migration and osteodifferentiation of HBMSCs on macroporous CS-Ta - A biocompatible macroporous coating for hard tissue repair. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 129:112411. [PMID: 34579920 DOI: 10.1016/j.msec.2021.112411] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 08/17/2021] [Accepted: 08/30/2021] [Indexed: 02/06/2023]
Abstract
Macroporous tantalum (Ta) coating was produced on titanium alloy implant for bone repair by cold spray (CS) technology, which is a promising technology for oxygen sensitive materials. The surface characteristics as well as in vitro cytocompatibility were systematically evaluated. The results showed that a rough and macroporous CS-Ta coating was formed on the Ti6Al4V (TC4) alloy surfaces. The surface roughness showed a significant enhancement from 17.06 μm (CS-Ta-S), 27.48 μm (CS-Ta-M) to 39.21 μm (CS-Ta-L) with the increase of the average pore diameter of CS-Ta coatings from 138.25 μm, 198.25 μm to 355.56 μm. In vitro results showed that macroporous CS-Ta structure with tantalum pentoxide (Ta2O5) was more favorable to induce human bone marrow derived mesenchymal stem cells (HBMSCs) spreading, migration and osteodifferentiation than TC4. Compared with the micro-scaled structure outside the macropores, the surface micro-nano structure inside the macropores was more favorable to promote osteodifferentiation with enhanced alkaline phosphatase (ALP) activity and extracellular matrix (ECM) mineralization. In particular, CS-Ta-L with the largest pore size showed significantly enhanced integrin-α5 expression, cell migration, ALP activity, ECM mineralization as well as osteogenic-related genes including ALP, osteopontin (OPN) and osteocalcin (OCN) expression. Our results indicated that macroporous Ta coatings by CS, especially CS-Ta-L, may be promising for hard tissue repairs.
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Affiliation(s)
- Junrong Tang
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, PR China; School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, PR China
| | - Hongyu Li
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China
| | - Mingxiao Guo
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, PR China; School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, PR China
| | - Zhipo Zhao
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, PR China
| | - Hanhui Liu
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, PR China; School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, PR China
| | - Yupeng Ren
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, PR China; School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, PR China
| | - Jiqiang Wang
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, PR China
| | - Xinyu Cui
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, PR China
| | - Yanfang Shen
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, PR China
| | - Huazi Jin
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, PR China
| | - Ying Zhao
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China.
| | - Tianying Xiong
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, PR China.
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Alipal J, Lee T, Koshy P, Abdullah H, Idris M. Evolution of anodised titanium for implant applications. Heliyon 2021; 7:e07408. [PMID: 34296002 PMCID: PMC8281482 DOI: 10.1016/j.heliyon.2021.e07408] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 04/15/2021] [Accepted: 06/23/2021] [Indexed: 12/26/2022] Open
Abstract
Anodised titanium has a long history as a coating structure for implants due to its bioactive and ossified surface, which promotes rapid bone integration. In response to the growing literature on anodised titanium, this article is the first to revisit the evolution of anodised titanium as an implant coating. The review reports the process and mechanisms for the engineering of distinctive anodised titanium structures, the significant factors influencing the mechanisms of its formation, bioactivity, as well as recent pre- and post-surface treatments proposed to improve the performance of anodised titanium. The review then broadens the discussion to include future functional trends of anodised titanium, ranging from the provision of higher surface energy interactions in the design of biocomposite coatings (template stencil interface for mechanical interlock) to techniques for measuring the bone-to-implant contact (BIC), each with their own challenges. Overall, this paper provides up-to-date information on the impacts of the structure and function of anodised titanium as an implant coating in vitro and in/ex vivo tests, as well as the four key future challenges that are important for its clinical translations, namely (i) techniques to enhance the mechanical stability and (ii) testing techniques to measure the mechanical stability of anodised titanium, (iii) real-time/in-situ detection methods for surface reactions, and (iv) cost-effectiveness for anodised titanium and its safety as a bone implant coating.
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Affiliation(s)
- J. Alipal
- Department of Chemical Engineering Technology, Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia (UTHM), Pagoh Higher Education Hub, 84600 Muar, Johor, Malaysia
| | - T.C. Lee
- Department of Production and Operation Management, Faculty of Technology Management and Business, UTHM Parit Raja 86400, Batu Pahat, Johor, Malaysia
| | - P. Koshy
- School of Materials Science and Engineering, UNSW Sydney, Sydney, NSW 2052, Australia
| | - H.Z. Abdullah
- Department of Manufacturing Engineering, Faculty of Mechanical and Manufacturing Engineering, UTHM Parit Raja 86400, Batu Pahat, Johor, Malaysia
| | - M.I. Idris
- Department of Manufacturing Engineering, Faculty of Mechanical and Manufacturing Engineering, UTHM Parit Raja 86400, Batu Pahat, Johor, Malaysia
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Influence of Two-Stage Anodization on Properties of the Oxide Coatings on the Ti–13Nb–13Zr Alloy. COATINGS 2020. [DOI: 10.3390/coatings10080707] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The increasing demand for titanium and its alloys used for implants results in the need for innovative surface treatments that may both increase corrosion resistance and biocompatibility and demonstrate antibacterial protection at no cytotoxicity. The purpose of this research was to characterize the effect of two-stage anodization—performed for 30 min in phosphoric acid—in the presence of hydrofluoric acid in the second stage. Scanning electron microscopy, atomic force microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction, Raman spectroscopy, glow discharge optical emission spectroscopy, nanoindentation and nano-scratch tests, potentiodynamic corrosion studies, and water contact angle measurements were performed to characterize microstructure, mechanical, chemical and physical properties. The biologic examinations were carried out to determine the cytotoxicity and antibacterial effects of oxide coatings. The research results demonstrate that two-stage oxidation affects several features and, in particular, improves mechanical and chemical behavior. The processes influencing the formation and properties of the oxide coating are discussed.
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Properties of Nanohydroxyapatite Coatings Doped with Nanocopper, Obtained by Electrophoretic Deposition on Ti13Zr13Nb Alloy. MATERIALS 2019; 12:ma12223741. [PMID: 31766219 PMCID: PMC6888410 DOI: 10.3390/ma12223741] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 11/05/2019] [Accepted: 11/08/2019] [Indexed: 02/07/2023]
Abstract
Nowadays, hydroxyapatite coatings are the most common surface modification of long-term implants. These coatings are characterized by high thickness and poor adhesion to the metallic substrate. The present research is aimed at characterizing the properties of nanohydroxyapatite (nanoHAp) with the addition of copper nanoparticle (nanoCu) coatings deposited on the Ti13Zr13Nb alloy by an electrophoresis process. The deposition of coatings was carried out for various amounts of nanoCu powder and various average particle sizes. Microstructure, topography, phase, and chemical composition were examined with scanning electron microscopy, atomic force microscopy, and X-ray diffraction. Corrosion properties were determined by potentiodynamic polarization technique in simulated body fluid. Nanomechanical properties were determined based on nanoindentation and scratch tests. The wettability of coatings was defined by the contact angle. It was proven that nanoHAp coatings containing nanocopper, compared to nanoHAp coatings without nanometals, demonstrated smaller number of cracks, lower thickness, and higher nanomechanical properties. The influence of the content and the average size of nanoCu on the quality of the coatings was observed. All coatings exhibited hydrophilic properties. The deposition of nanohydroxyapatite coatings doped with nanocopper may be a promising way to improve the antibacterial properties and mechanical stability of coatings.
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Vilardell AM, Cinca N, Garcia-Giralt N, Dosta S, Cano IG, Nogués X, Guilemany JM. In-vitro comparison of hydroxyapatite coatings obtained by cold spray and conventional thermal spray technologies. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 107:110306. [PMID: 31761228 DOI: 10.1016/j.msec.2019.110306] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 12/05/2018] [Accepted: 10/11/2019] [Indexed: 01/05/2023]
Abstract
Hydroxyapatite (HA) coatings onto Ti6Al4V alloy substrates were obtained by several thermal spray technologies: atmospheric plasma spray (APS) and high velocity oxy fuel (HVOF), together with the cold spray (CS) technique. A characterization study has been performed by means of surface and microstructure analyses, as well as biological performance. In-vitro tests were performed with primary human osteoblasts at 1, 7 and 14 days of cell culture on substrates. Cell viability was tested by MTS and LIVE/DEAD assays, cell differentiation by alkaline phosphatase (ALP) quantification, and cell morphology was analyzed by scanning electron microscopy. The HA coatings showed an increase of HA crystallinity from 62,4% to 89%, but also an increase of hydrophilicity from ∼32° to 0°, with the decrease of the operating temperature of the thermal spray techniques (APS > HVOF > CS). Additionally, APS HA coatings showed more surface micro-features than HVOF and CS HA coatings; cells onto APS HA coatings showed faster attachment by acquiring osteoblastic morphology in comparison with the rounded cell morphology observed onto CS HA coatings at 1 day of cell culture. HVOF HA coatings also showed proper cell adherence but did not show extended filopodia as cells onto APS HA coatings. However, at 14 days of cell culture, higher cell proliferation and differentiation was detected on HA coatings with higher crystallinity (HVOF and CS techniques). Cell attachment is suggested to be favoured by surface micro-features but also moderate surface wettability whereas cell proliferation and differentiation is suggested to be highly influenced by HA crystallinity and crystal size.
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Affiliation(s)
- A M Vilardell
- Centre de Projecció Tèrmica (CPT). Dpt. Ciència dels Materials i Química Física, Universitat de Barcelona Martí i Franquès 1, 08028, Barcelona, Spain.
| | - N Cinca
- Centre de Projecció Tèrmica (CPT). Dpt. Ciència dels Materials i Química Física, Universitat de Barcelona Martí i Franquès 1, 08028, Barcelona, Spain
| | - N Garcia-Giralt
- IMIM (Institut Hospital del Mar d'Investigacions Mèdiques), CIBERFES, ISCIII, Doctor Aiguader 88, 08003, Barcelona, Spain
| | - S Dosta
- Centre de Projecció Tèrmica (CPT). Dpt. Ciència dels Materials i Química Física, Universitat de Barcelona Martí i Franquès 1, 08028, Barcelona, Spain
| | - I G Cano
- Centre de Projecció Tèrmica (CPT). Dpt. Ciència dels Materials i Química Física, Universitat de Barcelona Martí i Franquès 1, 08028, Barcelona, Spain
| | - X Nogués
- IMIM (Institut Hospital del Mar d'Investigacions Mèdiques), CIBERFES, ISCIII, Doctor Aiguader 88, 08003, Barcelona, Spain
| | - J M Guilemany
- Centre de Projecció Tèrmica (CPT). Dpt. Ciència dels Materials i Química Física, Universitat de Barcelona Martí i Franquès 1, 08028, Barcelona, Spain
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