101
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Xiao M, Chen YM, Biao MN, Zhang XD, Yang BC. Bio-functionalization of biomedical metals. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 70:1057-1070. [PMID: 27772705 DOI: 10.1016/j.msec.2016.06.067] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 04/18/2016] [Accepted: 06/22/2016] [Indexed: 12/27/2022]
Abstract
Bio-functionalization means to endow biomaterials with bio-functions so as to make the materials or devices more suitable for biomedical applications. Traditionally, because of the excellent mechanical properties, the biomedical metals have been widely used in clinic. However, the utilized functions are basically supporting or fixation especially for the implantable devices. Nowadays, some new functions, including bioactivity, anti-tumor, anti-microbial, and so on, are introduced to biomedical metals. To realize those bio-functions on the metallic biomedical materials, surface modification is the most commonly used method. Surface modification, including physical and chemical methods, is an effective way to alter the surface morphology and composition of biomaterials. It can endow the biomedical metals with new surface properties while still retain the good mechanical properties of the bulk material. Having analyzed the ways of realizing the bio-functionalization, this article briefly summarized the bio-functionalization concepts of six hot spots in this field. They are bioactivity, bony tissue inducing, anti-microbial, anti-tumor, anticoagulation, and drug loading functions.
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Affiliation(s)
- M Xiao
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu 610064, China; National Engineering Research Center for Biomaterials, Chengdu, 610064, China
| | - Y M Chen
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu 610064, China; National Engineering Research Center for Biomaterials, Chengdu, 610064, China
| | - M N Biao
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu 610064, China; National Engineering Research Center for Biomaterials, Chengdu, 610064, China
| | - X D Zhang
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu 610064, China; National Engineering Research Center for Biomaterials, Chengdu, 610064, China
| | - B C Yang
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu 610064, China; National Engineering Research Center for Biomaterials, Chengdu, 610064, China.
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102
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Hamai R, Shirosaki Y, Miyazaki T. Apatite formation on a hydrogel containing sulfinic acid group under physiological conditions. J Biomed Mater Res B Appl Biomater 2016; 105:1924-1929. [PMID: 27283204 DOI: 10.1002/jbm.b.33732] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 05/19/2016] [Accepted: 05/24/2016] [Indexed: 11/08/2022]
Abstract
Natural bone consists of apatite and collagen fiber. Bioactive materials capable to bonding to bone tissue are clinically used as bone-repairing materials. Apatite-organic polymer composites exhibit bone-bonding abilities and mechanical properties similar to those of natural bone, and these materials can be prepared using biomimetic processes in simulated body fluid (SBF). Specific functional groups such as sulfonic and carboxylic acid groups are known to induce the heterogeneous nucleation of apatite in SBF. However, it remains unclear whether structurally related sulfinic acid groups can contribute to apatite formation in the same way, despite sodium sulfonate being used in biomedical applications as a radical polymerization promoter in adhesive dental resin. Herein, we report the preparation of a new hydrogel containing sulfinic acid groups from sodium 4-vinylbenzenesulfinate and 2-hydroxyethyl methacrylate using a radical polymerization reaction and the subsequent incorporation of Ca2+ ions into this material. We also investigated the apatite-forming behavior of these hydrogels in SBF. Hydrogels containing sulfinic acid groups showed higher apatite-forming ability than those without sulfinic acid groups. In addition, the apatite layer formed on the former showed tight adhesion to the hydrogel. This phenomenon was attributed to the heterogeneous nucleation of apatite, induced by the sulfinic acid groups. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 1924-1929, 2017.
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Affiliation(s)
- Ryo Hamai
- Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Kitakyushu, Japan
| | - Yuki Shirosaki
- Frontier Research Academy for Young Researchers, Kyushu Institute of Technology, Kitakyushu, Japan
| | - Toshiki Miyazaki
- Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Kitakyushu, Japan
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103
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Türkan U, Güden M, Sudağıdan M. Staphylococcus epidermidis adhesion on surface-treated open-cell Ti6Al4V foams. ACTA ACUST UNITED AC 2016; 61:299-307. [PMID: 26057214 DOI: 10.1515/bmt-2015-0007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Accepted: 05/07/2015] [Indexed: 11/15/2022]
Abstract
The effect of alkali and nitric acid surface treatments on the adhesion of Staphylococcus epidermidis to the surface of 60% porous open-cell Ti6Al4V foam was investigated. The resultant surface roughness of foam particles was determined from the ground flat surfaces of thin foam specimens. Alkali treatment formed a porous, rough Na2Ti5O11 surface layer on Ti6Al4V particles, while nitric acid treatment increased the number of undulations on foam flat and particle surfaces, leading to the development of finer surface topographical features. Both surface treatments increased the nanometric-scale surface roughness of particles and the number of bacteria adhering to the surface, while the adhesion was found to be significantly higher in alkali-treated foam sample. The significant increase in the number of bacterial attachment on the alkali-treated sample was attributed to the formation of a highly porous and nanorough Na2Ti5O11 surface layer.
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104
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Abdelrahim RA, Badr NA, Baroudi K. Effect of anodization and alkali-heat treatment on the bioactivity of titanium implant material (an in vitro study). J Int Soc Prev Community Dent 2016; 6:189-95. [PMID: 27382532 PMCID: PMC4916790 DOI: 10.4103/2231-0762.183107] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 04/04/2016] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVE This study was aimed to assess the effect of anodized and alkali-heat surface treatment on the bioactivity of titanium alloy (Ti-6Al-4V) after immersion in Hank's solution for 7 days. MATERIALS AND METHODS Fifteen titanium alloy samples were used in this study. The samples were divided into three groups (five for each), five samples were anodized in 1M H3PO4 at constant voltage value of 20 v and another five samples were alkali-treated in 5 M NaOH solution for 25 min at temperature 60°C followed by heat treatment at 600°C for 1 h. All samples were then immersed in Hank's solution for 7 days to assess the effect of surface modifications on the bioactivity of titanium alloy. The different treated surfaces and control one were characterized by X-ray diffraction, atomic force microscopy, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and Fourier transformation infra-red spectroscopy. Statistical analysis was performed with PASW Statistics 18.0(®) (Predictive Analytics Software). RESULTS Anodization of Ti-alloy samples (Group B) led to the formation of bioactive titanium oxide anatase phase and PO4 (3-) group on the surface. The alkali-heat treatment of titanium alloy samples (Group C) leads to the formation of bioactive titania hydrogel and supplied sodium ions. The reaction between the Ti sample and NaOH alkaline solution resulted in the formation of a layer of amorphous sodium titania on the Ti surface, and this layer can induce apatite deposition. CONCLUSIONS The surface roughness and surface chemistry had an excellent ability to induce bioactivity of titanium alloy. The anodization in H3PO4 produced anatase titanium oxide on the surface with phosphate originated from electrolytes changed the surface topography and allowed formation of calcium-phosphate.
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Affiliation(s)
- Ramy A. Abdelrahim
- Department of Dental Biomaterials, School of Dentistry, Al-Azhar University, Egypt, Kingdom of Saudi Arabia
- Department of Restorative Dental Sciences, Alfarabi Colleges, Riyadh, Kingdom of Saudi Arabia
| | - Nadia A. Badr
- Department of Dental Biomaterials, Faculty of Oral and Dental Medicine, Cairo University, Egypt
| | - Kusai Baroudi
- Department of Preventive Dental Sciences, Alfarabi Colleges, Riyadh, Kingdom of Saudi Arabia
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105
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Yang J, Lee IS, Cui F. Sirolimus-loaded CaP coating on Co-Cr alloy for drug-eluting stent. Regen Biomater 2016; 3:167-71. [PMID: 27252886 PMCID: PMC4881617 DOI: 10.1093/rb/rbw018] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 02/20/2016] [Accepted: 03/21/2016] [Indexed: 12/28/2022] Open
Abstract
To achieve polymer-free and controllable drug-eluting system, there have been many efforts to modify the surface composition and topography of metal stent. Recently, calcium phosphate is commonly applied to metallic implants as a coating material for fast fixation and firm-implant bone attachment on the account of its demonstrated bioactive and osteoconductive properties. In the present study, the release of sirolimus could be controllable because of immobilization of sirolimus during the process of biomimetic CaP coating forming. A completely new concept is the drug carrier of biomimetic CaP coating with sirolimus for an absorbable drug eluting system, which in turn can serve as a drug reservoir. We here describe the characteristic, mechanisms and drug release in vitro of new drug-eluting system in comparison to conventional system equivalent. Nano-structured calcium phosphate (CaP) coating was formed on the cobalt–chromium (Co-Cr) alloy substrate. By immersing coated sample in solution with sirolimus (rapamycin), the sirolimus could be immobilized in the newly formed CaP layer. The morphology, composition and formation process of the coating were studied with scanning electron microscopy, energy dispersive spectrometer, X-ray diffraction and X-ray photoelectron spectroscopy. The results showed that a uniform CaP coating incorporated with sirolimus was observed on Co-Cr alloy.
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Affiliation(s)
- Jingxin Yang
- Materials Science and Engineering, College of Mechanical and Electrical Engineering, Beijing Union University, Beijing 100020, China;; Beijing Engineering Research Center of Smart Mechanical Innovation Design Service, Beijing 100020, China
| | - In-Seop Lee
- Atomic-Scale Surface Science Research Center, Yonsei University, Seoul 120-749, Korea and
| | - Fuzhai Cui
- School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
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106
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Xiao M, Biao M, Chen Y, Xie M, Yang B. Regulating the osteogenic function of rhBMP 2 by different titanium surface properties. J Biomed Mater Res A 2016; 104:1882-93. [PMID: 26991341 DOI: 10.1002/jbm.a.35719] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 03/10/2016] [Accepted: 03/11/2016] [Indexed: 12/29/2022]
Abstract
Bone morphogenetic protein 2 (BMP-2) is important for regulating the osteogenic differentiation of mesenchymal stem cells and the response of bone tissue. It adsorbs on the surface of biomedical implants immediately and plays a role of mediator between the materials surfaces and the host cells. Studies usually connect the material surface properties and the new bone formation directly. However, interaction between the adsorbed BMP-2 on the implant surface and the cells in the tissue is the key to explaining the osteogenic properties of the material. So, in this article, we investigated the conformational and functional changes induced by the surface modified titanium metals. We found that the α-helix and β-sheet structure of rhBMP-2 can be well maintained on the anodic oxidation treated titanium surface. The osteogenic function of rhBMP-2 can sustain for a relatively long time even though there is less amount adhere to the surface compared with that on the acid alkali treated titanium. Surface properties, especially the morphology enable a larger amount of rhBMP-2 to adsorb to the surface of the acid alkali treated titanium, but the conformation of the protein is severely influenced. The percentage of α-helix structure is also significantly decreased so that the efficacy of rhBMP-2 is only maintained in the early time. This study indicated that different surface modification of the surface could regulate the structure of rhBMP-2 and then further influence its osteogenic function. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 1882-1893, 2016.
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Affiliation(s)
- Ming Xiao
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu, 610064, China.,National Engineering Research Center for Biomaterials, Chengdu, 610064, China
| | - Meina Biao
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu, 610064, China.,National Engineering Research Center for Biomaterials, Chengdu, 610064, China
| | - Yangmei Chen
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu, 610064, China.,National Engineering Research Center for Biomaterials, Chengdu, 610064, China
| | - Meiju Xie
- Analytical and Testing Center, Sichuan University, Chengdu, 610064, China
| | - Bangcheng Yang
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu, 610064, China.,National Engineering Research Center for Biomaterials, Chengdu, 610064, China
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107
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Harada R, Takemoto S, Kinoshita H, Yoshinari M, Kawada E. Influence of sulfide concentration on the corrosion behavior of titanium in a simulated oral environment. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 62:268-73. [PMID: 26952423 DOI: 10.1016/j.msec.2016.01.065] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 12/30/2015] [Accepted: 01/24/2016] [Indexed: 11/18/2022]
Abstract
This study assessed the corrosion behavior of titanium in response to sulfide by determining the effects of sulfide concentration and pH over immersion period. Corrosion was evaluated through changes in color, glossiness, surface characterization, and titanium release. Sulfide solutions were prepared in 3 different concentrations with Na2S, each in pH unadjusted (sulfide-alkaline) and pH adjusted to 7.5 (sulfide-neutral). Titanium discoloration increased and glossiness decreased as sulfide concentration and immersion period increased in sulfide-alkaline solutions. Coral-like complexes were observed on the surface of these specimens, which became more pronounced as concentration increased. Small amounts of titanium release were detected in sulfide-alkaline solutions; however, this was not affected by immersion periods. Corrosion was indicated through considerable surface oxidation suggesting the formation of a thick oxide layer. No significant changes in color and glossiness, or titanium release were indicated for titanium specimens immersed in sulfide-neutral solutions indicating that pH had a significant effect on corrosion. Our findings suggest that a thick oxide layer on the titanium surface was formed in sulfide-alkaline solutions due to excessive oxidation.
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Affiliation(s)
- Rino Harada
- Department of Dental Materials Science, Tokyo Dental College, 2-9-18 Misaki-cho, Chiyoda-ku, 101-0061, Tokyo, Japan; Oral Science Center, Tokyo Dental College, 2-9-18 Misaki-cho, Chiyoda-ku, 101-0061, Tokyo, Japan
| | - Shinji Takemoto
- Department of Dental Materials Science, Tokyo Dental College, 2-9-18 Misaki-cho, Chiyoda-ku, 101-0061, Tokyo, Japan; Oral Science Center, Tokyo Dental College, 2-9-18 Misaki-cho, Chiyoda-ku, 101-0061, Tokyo, Japan.
| | - Hideaki Kinoshita
- Department of Dental Materials Science, Tokyo Dental College, 2-9-18 Misaki-cho, Chiyoda-ku, 101-0061, Tokyo, Japan
| | - Masao Yoshinari
- Oral Science Center, Tokyo Dental College, 2-9-18 Misaki-cho, Chiyoda-ku, 101-0061, Tokyo, Japan
| | - Eiji Kawada
- Department of Dental Materials Science, Tokyo Dental College, 2-9-18 Misaki-cho, Chiyoda-ku, 101-0061, Tokyo, Japan
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108
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Tang Y, Hong L, Wu Q, Li J, Hou G, Cao H, Wu L, Zheng G. TiO 2 (B) nanowire arrays on Ti foil substrate as three-dimensional anode for lithium-ion batteries. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.01.235] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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109
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Topological design and additive manufacturing of porous metals for bone scaffolds and orthopaedic implants: A review. Biomaterials 2016. [DOI: 10.1016/j.biomaterials.2016.01.012 pmid: 26773669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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110
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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 & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 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] [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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111
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Shah FA, Trobos M, Thomsen P, Palmquist A. Commercially pure titanium (cp-Ti) versus titanium alloy (Ti6Al4V) materials as bone anchored implants - Is one truly better than the other? MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 62:960-6. [PMID: 26952502 DOI: 10.1016/j.msec.2016.01.032] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Revised: 12/10/2015] [Accepted: 01/14/2016] [Indexed: 01/17/2023]
Abstract
Commercially pure titanium (cp-Ti) and titanium alloys (typically Ti6Al4V) display excellent corrosion resistance and biocompatibility. Although the chemical composition and topography are considered important, the mechanical properties of the material and the loading conditions in the host have, conventionally, influenced material selection for different clinical applications: predominantly Ti6Al4V in orthopaedics while cp-Ti in dentistry. This paper attempts to address three important questions: (i) To what extent do the surface properties differ when cp-Ti and Ti6Al4V materials are manufactured with the same processing technique?, (ii) Does bone tissue respond differently to the two materials, and (iii) Do bacteria responsible for causing biomaterial-associated infections respond differently to the two materials? It is concluded that: (i) Machined cp-Ti and Ti6Al4V exhibit similar surface morphology, topography, phase composition and chemistry, (ii) Under experimental conditions, cp-Ti and Ti6Al4V demonstrate similar osseointegration and biomechanical anchorage, and (iii) Experiments in vitro fail to disclose differences between cp-Ti and Ti6Al4V to harbour Staphylococcus epidermidis growth. No clinical comparative studies exist which could determine if long-term, clinical differences exist between the two types of bulk materials. It is debatable whether cp-Ti or Ti6Al4V exhibit superiority over the other, and further comparative studies, particularly in a clinical setting, are required.
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Affiliation(s)
- Furqan A Shah
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, Göteborg, Sweden; BIOMATCELL VINN Excellence Center of Biomaterials and Cell Therapy, Göteborg, Sweden.
| | - Margarita Trobos
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, Göteborg, Sweden; BIOMATCELL VINN Excellence Center of Biomaterials and Cell Therapy, Göteborg, Sweden
| | - Peter Thomsen
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, Göteborg, Sweden; BIOMATCELL VINN Excellence Center of Biomaterials and Cell Therapy, Göteborg, Sweden
| | - Anders Palmquist
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, Göteborg, Sweden; BIOMATCELL VINN Excellence Center of Biomaterials and Cell Therapy, Göteborg, Sweden
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112
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New Ti-Alloys and Surface Modifications to Improve the Mechanical Properties and the Biological Response to Orthopedic and Dental Implants: A Review. BIOMED RESEARCH INTERNATIONAL 2016; 2016:2908570. [PMID: 26885506 PMCID: PMC4738729 DOI: 10.1155/2016/2908570] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Accepted: 11/30/2015] [Indexed: 12/14/2022]
Abstract
Titanium implants are widely used in the orthopedic and dentistry fields for many decades, for joint arthroplasties, spinal and maxillofacial reconstructions, and dental prostheses. However, despite the quite satisfactory survival rates failures still exist. New Ti-alloys and surface treatments have been developed, in an attempt to overcome those failures. This review provides information about new Ti-alloys that provide better mechanical properties to the implants, such as superelasticity, mechanical strength, and corrosion resistance. Furthermore, in vitro and in vivo studies, which investigate the biocompatibility and cytotoxicity of these new biomaterials, are introduced. In addition, data regarding the bioactivity of new surface treatments and surface topographies on Ti-implants is provided. The aim of this paper is to discuss the current trends, advantages, and disadvantages of new titanium-based biomaterials, fabricated to enhance the quality of life of many patients around the world.
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113
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Wang X, Xu S, Zhou S, Xu W, Leary M, Choong P, Qian M, Brandt M, Xie YM. Topological design and additive manufacturing of porous metals for bone scaffolds and orthopaedic implants: A review. Biomaterials 2016; 83:127-41. [PMID: 26773669 DOI: 10.1016/j.biomaterials.2016.01.012] [Citation(s) in RCA: 634] [Impact Index Per Article: 79.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 12/31/2015] [Accepted: 01/01/2016] [Indexed: 02/06/2023]
Abstract
One of the critical issues in orthopaedic regenerative medicine is the design of bone scaffolds and implants that replicate the biomechanical properties of the host bones. Porous metals have found themselves to be suitable candidates for repairing or replacing the damaged bones since their stiffness and porosity can be adjusted on demands. Another advantage of porous metals lies in their open space for the in-growth of bone tissue, hence accelerating the osseointegration process. The fabrication of porous metals has been extensively explored over decades, however only limited controls over the internal architecture can be achieved by the conventional processes. Recent advances in additive manufacturing have provided unprecedented opportunities for producing complex structures to meet the increasing demands for implants with customized mechanical performance. At the same time, topology optimization techniques have been developed to enable the internal architecture of porous metals to be designed to achieve specified mechanical properties at will. Thus implants designed via the topology optimization approach and produced by additive manufacturing are of great interest. This paper reviews the state-of-the-art of topological design and manufacturing processes of various types of porous metals, in particular for titanium alloys, biodegradable metals and shape memory alloys. This review also identifies the limitations of current techniques and addresses the directions for future investigations.
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Affiliation(s)
- Xiaojian Wang
- Centre for Innovative Structures and Materials, School of Engineering, RMIT University, GPO Box 2476, Melbourne 3001, Victoria, Australia
| | - Shanqing Xu
- Centre for Innovative Structures and Materials, School of Engineering, RMIT University, GPO Box 2476, Melbourne 3001, Victoria, Australia
| | - Shiwei Zhou
- Centre for Innovative Structures and Materials, School of Engineering, RMIT University, GPO Box 2476, Melbourne 3001, Victoria, Australia
| | - Wei Xu
- Centre for Additive Manufacturing, School of Engineering, RMIT University, GPO Box 2476, Melbourne 3001, Victoria, Australia
| | - Martin Leary
- Centre for Additive Manufacturing, School of Engineering, RMIT University, GPO Box 2476, Melbourne 3001, Victoria, Australia
| | - Peter Choong
- Department of Surgery, University of Melbourne, St. Vincent's Hospital, Melbourne 3001, Victoria, Australia
| | - M Qian
- Centre for Additive Manufacturing, School of Engineering, RMIT University, GPO Box 2476, Melbourne 3001, Victoria, Australia
| | - Milan Brandt
- Centre for Additive Manufacturing, School of Engineering, RMIT University, GPO Box 2476, Melbourne 3001, Victoria, Australia
| | - Yi Min Xie
- Centre for Innovative Structures and Materials, School of Engineering, RMIT University, GPO Box 2476, Melbourne 3001, Victoria, Australia; Centre for Additive Manufacturing, School of Engineering, RMIT University, GPO Box 2476, Melbourne 3001, Victoria, Australia.
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114
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Meng F, Liu Y, Xue T, Su Q, Wang W, Qi T. Structures, formation mechanisms, and ion-exchange properties of α-, β-, and γ-Na2TiO3. RSC Adv 2016. [DOI: 10.1039/c6ra16984h] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The structure of β-Na2TiO3 was refined. The formation/transformation mechanisms and ion-exchange properties of α-, β-, and γ-Na2TiO3 were investigated.
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Affiliation(s)
- Fancheng Meng
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Yahui Liu
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Tianyan Xue
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Qian Su
- Key Laboratory of Green Process and Engineering
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Weijing Wang
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Tao Qi
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
- China
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115
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Roach M, Williamson R, Blakely I, Didier L. Tuning anatase and rutile phase ratios and nanoscale surface features by anodization processing onto titanium substrate surfaces. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 58:213-23. [DOI: 10.1016/j.msec.2015.08.028] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 07/16/2015] [Accepted: 08/21/2015] [Indexed: 11/15/2022]
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116
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Lakshmi RV, Bera P, Anandan C. Surface treatment and its effect on the electrochemical behavior of Ti–15Mo–3Nb–3Al alloy. RSC Adv 2016. [DOI: 10.1039/c6ra00934d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The effect of alkaline and acidic treatments on the surface morphology, chemical composition and electrochemical behavior of Ti β–21S alloy is studied. Also, the role of GPTMS–TIP sol–gel coating in obviating the effects is explored.
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Affiliation(s)
- R. V. Lakshmi
- CSIR-National Aerospace Laboratories
- Bangalore 560017
- India
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117
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Rafieerad AR, Bushroa AR, Nasiri-Tabrizi B, Vadivelu J, Baradaran S, Zalnezhad E, Amiri A. Optimized fabrication and characterization of TiO2–Nb2O5–Al2O3 mixed oxide nanotube arrays on Ti–6Al–7Nb. RSC Adv 2016. [DOI: 10.1039/c5ra20493c] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The TiO2–Nb2O5–Al2O3 mixed oxide nanotube arrays on Ti67 are the promising nanostructured materials for metallic orthopaedic implants.
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Affiliation(s)
- A. R. Rafieerad
- Department of Mechanical Engineering
- Faculty of Engineering
- University of Malaya
- 50603 Kuala Lumpur
- Malaysia
| | - A. R. Bushroa
- Department of Mechanical Engineering
- Faculty of Engineering
- University of Malaya
- 50603 Kuala Lumpur
- Malaysia
| | - B. Nasiri-Tabrizi
- Advanced Materials Research Center
- Materials Engineering Department
- Najafabad Branch
- Islamic Azad University
- Najafabad
| | - J. Vadivelu
- Department of Medical Microbiology
- Faculty of Medicine
- University of Malaya
- 50603 Kuala Lumpur
- Malaysia
| | - S. Baradaran
- Department of Mechanical Engineering
- Faculty of Engineering
- University of Malaya
- 50603 Kuala Lumpur
- Malaysia
| | - E. Zalnezhad
- Department of Mechanical Engineering
- Hanyang University
- Seoul
- Korea
| | - A. Amiri
- Department of Mechanical Engineering
- Faculty of Engineering
- University of Malaya
- 50603 Kuala Lumpur
- Malaysia
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118
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Anodisation and Sol–Gel Coatings as Surface Modification to Promote Osseointegration in Metallic Prosthesis. MODERN ASPECTS OF ELECTROCHEMISTRY 2016. [DOI: 10.1007/978-3-319-31849-3_3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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119
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He YH, Zhang YQ, Jiang YH, Zhou R. Microstructure evolution and enhanced bioactivity of Ti–Nb–Zr alloy by bioactive hydroxyapatite fabricated via spark plasma sintering. RSC Adv 2016. [DOI: 10.1039/c6ra22986g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The crystalline phases and bioactivity of materials play crucial factors in determining the biological interactions and osseointegration process of orthopaedic replacements or implants.
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Affiliation(s)
- Y. H. He
- School of Materials Science and Engineering
- Kunming University of Science and Technology
- Kunming 650093
- China
| | - Y. Q. Zhang
- School of Materials Science and Engineering
- Kunming University of Science and Technology
- Kunming 650093
- China
- Engineering Technology Research Center of Titanium Products and Application of Yunnan Province
| | - Y. H. Jiang
- School of Materials Science and Engineering
- Kunming University of Science and Technology
- Kunming 650093
- China
| | - R. Zhou
- School of Materials Science and Engineering
- Kunming University of Science and Technology
- Kunming 650093
- China
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120
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Tian Y, Fujibayashi S, Yamaguchi S, Matsushita T, Kokubo T, Matsuda S. In vivo study of the early bone-bonding ability of Ti meshes formed with calcium titanate via chemical treatments. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2015; 26:271. [PMID: 26515374 DOI: 10.1007/s10856-015-5612-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 10/24/2015] [Indexed: 06/05/2023]
Abstract
Alkali and heat (AH) treatment forming sodium titanate has been shown to connect bioinert Ti metal and bone tissue. Artificial joints treated with this method have achieved extensive clinical application. Recently a new chemical treatment of Alkali-Calcium-Heat-Water (ACaHW) treatment forming calcium titanate was proposed. Notably, the apatite-forming ability of this treatment is greater than that of AH treatment, as verified in vitro. However, the early bone-bonding abilities of the two treatments have not been compared in vivo. To simulate clinical application, we treated a commercially pure Ti (Cp-Ti) mesh implant with AH or ACaHW. Then, using mechanical and histological methods, we compared the bone-bonding abilities of the two treatments early during the implantation process (2-4 weeks); untreated Cp-Ti mesh was used as a control. Because the mesh structure might influence bone-bonding ability, we compared these bonding abilities with values obtained at 4 and 8 weeks using a Cp-Ti implant with a plate structure. In the mesh group, histological comparisons at 2 and 3 weeks indicated that ACaHW treatment resulted in a bone-bonding ability similar to that of AH treatment; ACaHW exhibited a greater bonding ability than AH at 4 weeks. However, in tests of the plate group at later time points, such differences were not apparent. The results obtained here indicate that during the early stage of embedment, ACaHW treatment of Cp-Ti mesh implants yields a higher bone-bonding ability than AH treatment, thus providing a positive reference for future clinical applications.
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Affiliation(s)
- Yi Tian
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shougoin, Sakyou-ku, Kyoto, 606-8507, Japan.
| | - Shunsuke Fujibayashi
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shougoin, Sakyou-ku, Kyoto, 606-8507, Japan
| | - Seiji Yamaguchi
- Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi, 487-8501, Japan
| | - Tomiharu Matsushita
- Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi, 487-8501, Japan
| | - Tadashi Kokubo
- Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi, 487-8501, Japan
| | - Shuichi Matsuda
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shougoin, Sakyou-ku, Kyoto, 606-8507, Japan
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121
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Shayganpour A, Rebaudi A, Cortella P, Diaspro A, Salerno M. Electrochemical coating of dental implants with anodic porous titania for enhanced osteointegration. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2015; 6:2183-2192. [PMID: 26665091 PMCID: PMC4660911 DOI: 10.3762/bjnano.6.224] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Accepted: 11/11/2015] [Indexed: 06/05/2023]
Abstract
Clinical long-term osteointegration of titanium-based biomedical devices is the main goal for both dental and orthopedical implants. Both the surface morphology and the possible functionalization of the implant surface are important points. In the last decade, following the success of nanostructured anodic porous alumina, anodic porous titania has also attracted the interest of academic researchers. This material, investigated mainly for its photocatalytic properties and for applications in solar cells, is usually obtained from the anodization of ultrapure titanium. We anodized dental implants made of commercial grade titanium under different experimental conditions and characterized the resulting surface morphology with scanning electron microscopy equipped with an energy dispersive spectrometer. The appearance of nanopores on these implants confirm that anodic porous titania can be obtained not only on ultrapure and flat titanium but also as a conformal coating on curved surfaces of real objects made of industrial titanium alloys. Raman spectroscopy showed that the titania phase obtained is anatase. Furthermore, it was demonstrated that by carrying out the anodization in the presence of electrolyte additives such as magnesium, these can be incorporated into the porous coating. The proposed method for the surface nanostructuring of biomedical implants should allow for integration of conventional microscale treatments such as sandblasting with additive nanoscale patterning. Additional advantages are provided by this material when considering the possible loading of bioactive drugs in the porous cavities.
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Affiliation(s)
- Amirreza Shayganpour
- Nanophysics Department, Istituto Italiano di Tecnologia, via Morego 30, 16149 Genova, Italy
| | - Alberto Rebaudi
- Rebaudi Dental Office, piazza della Vittoria 8, 16121 Genova, Italy
| | | | - Alberto Diaspro
- Nanophysics Department, Istituto Italiano di Tecnologia, via Morego 30, 16149 Genova, Italy
| | - Marco Salerno
- Nanophysics Department, Istituto Italiano di Tecnologia, via Morego 30, 16149 Genova, Italy
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122
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Enhancement effect of cell adhesion on titanium surface using phosphonated low-molecular-weight chitosan derivative. Macromol Res 2015. [DOI: 10.1007/s13233-015-3135-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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123
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Kokubo T, Yamaguchi S. Growth of Novel Ceramic Layers on Metals via Chemical and Heat Treatments for Inducing Various Biological Functions. Front Bioeng Biotechnol 2015; 3:176. [PMID: 26579517 PMCID: PMC4621495 DOI: 10.3389/fbioe.2015.00176] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Accepted: 10/13/2015] [Indexed: 12/23/2022] Open
Abstract
The present authors' systematic studies on growth of novel ceramic layers on Ti metal and its alloys by chemical and heat treatments for inducing bone-bonding bioactivity and some other biological functions are reviewed. Ti metal formed an apatite on its surface in a simulated body fluid, when heat-treated after exposure to strong acid solutions to form rutile surface layer, or to strong alkali solutions to form sodium titanate surface layer. Both types of Ti metal tightly bonded to the living bone. The alkali and heat treatment was applied to the surface Ti metal of an artificial hip joint and successfully used in the clinic since 2007. The acid and heat treatments was applied to porous Ti metal to induce osteoconductivity as well as osteoinductivity. The resulting product was successfully used in clinical trials for spinal fusion devices. For the Ti-based alloys, the alkali and heat treatment was little modified to form calcium titanate surface layer. Bone-growth promoting Mg, Sr, and Zn ions as well as the antibacterial Ag ion were successfully incorporated into the calcium titanate layer.
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Affiliation(s)
- Tadashi Kokubo
- Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University , Kasugai , Japan
| | - Seiji Yamaguchi
- Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University , Kasugai , Japan
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124
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Nanostructured Ti6Al4V alloy fabricated using modified alkali-heat treatment: Characterization and cell adhesion. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 59:617-623. [PMID: 26652415 DOI: 10.1016/j.msec.2015.10.077] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 10/02/2015] [Accepted: 10/23/2015] [Indexed: 12/22/2022]
Abstract
In order to optimize the creation of a nanostructured surface on Ti6Al4V titanium alloy, an alkali treatment was performed using a 10-M NaOH solution at various temperatures (30, 40, 50, and 60°C) so as to determine the optimal temperature. This was combined with subsequent heat treatments (200, 400, 600, and 800°C) in air. The effects of different temperatures for the latter treatments on the nanostructure surface and the initial cell adhesion were evaluated, and the optimal temperature of the alkali solution was found to be 30°C. Further, the nanotopography, surface chemistry, and surface roughness of the nanoporous structure were retained after heat treatments performed at 200, 400, and 600°C, and only the phase structure was altered. The amorphous sodium titanate phase, the content of which increased with increased heat-treatment temperature, may have played a role in promoting cell adhesion on the nanoporous surface. However, heat treatment at 800°C did not enhance the cell-surface attachment. Rather, the nanostructure degraded significantly with the reappearance of Al and V.
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125
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Shen J, Qi Y, Jin B, Wang X, Hu Y, Jiang Q. Control of hydroxyapatite coating by self-assembled monolayers on titanium and improvement of osteoblast adhesion. J Biomed Mater Res B Appl Biomater 2015; 105:124-135. [PMID: 26426988 DOI: 10.1002/jbm.b.33539] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Revised: 08/24/2015] [Accepted: 09/12/2015] [Indexed: 11/11/2022]
Abstract
Self-assembly technique was applied to introduce functional groups and form hydroxyl-, amine-, and carboxyl-terminal self-assembled monolayers (SAMs). The SAMs were grafted onto titanium substrates to obtain a molecularly smooth functional surface. Subsequent hydrothermal crystal growth formed homogeneous and crack-free crystalline hydroxyapatite (HA) coatings on these substrates. AFM and XPS were used to characterize the SAM surfaces, and XRD, SEM, and TEM were used to characterize the HA coatings. Results show that highly crystalline, dense, and oriented HA coatings can be formed on the OH-, NH2 -, and COOH-SAM surfaces. The SAM surface with -COOH exhibited stronger nucleating ability than that with -OH and -NH2 . The nucleation and growth processes of HA coatings were effectively controlled by varying reaction time, pH, and temperature. By using this method, highly crystalline, dense, and adherent HA coatings were obtained. In addition, in vitro cell evaluation demonstrated that HA coatings improved cell adhesion as compared with pristine titanium substrate. The proposed method is considerably effective in introducing the HA coatings on titanium surfaces for various biomedical applications and further usage in other industries. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 124-135, 2017.
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Affiliation(s)
- Juan Shen
- Department of Chemistry, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China.,Department of Chemistry, State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Yongcheng Qi
- Department of Chemistry, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Bo Jin
- Department of Chemistry, State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Xiaoyan Wang
- Department of Chemistry, Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu, 610064, China
| | - Yamin Hu
- Department of Chemistry, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Qiying Jiang
- Department of Chemistry, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China
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126
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Mahapatro A. Bio-functional nano-coatings on metallic biomaterials. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 55:227-51. [DOI: 10.1016/j.msec.2015.05.018] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Revised: 03/20/2015] [Accepted: 05/07/2015] [Indexed: 11/28/2022]
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127
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Meenashisundaram GK, Nai MH, Gupta M. Effects of Primary Processing Techniques and Significance of Hall-Petch Strengthening on the Mechanical Response of Magnesium Matrix Composites Containing TiO₂ Nanoparticulates. NANOMATERIALS 2015; 5:1256-1283. [PMID: 28347063 PMCID: PMC5304626 DOI: 10.3390/nano5031256] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 07/20/2015] [Accepted: 07/20/2015] [Indexed: 11/16/2022]
Abstract
In the present study, Mg (1.98 and 2.5) vol % TiO₂ nanocomposites are primarily synthesized utilizing solid-phase blend-press-sinter powder metallurgy (PM) technique and liquid-phase disintegrated melt deposition technique (DMD) followed by hot extrusion. Microstructural characterization of the synthesized Mg-TiO₂ nanocomposites indicated significant grain refinement with DMD synthesized Mg nanocomposites exhibiting as high as ~47% for 2.5 vol % TiO₂ NPs addition. X-ray diffraction studies indicated that texture randomization of pure Mg depends not only on the critical amount of TiO₂ NPs added to the Mg matrix but also on the adopted synthesis methodology. Irrespective of the processing technique, theoretically predicted tensile yield strength of Mg-TiO₂ nanocomposites was found to be primarily governed by Hall-Petch mechanism. Among the synthesized Mg materials, solid-phase synthesized Mg 1.98 vol % TiO₂ nanocomposite exhibited a maximum tensile fracture strain of ~14.5%. Further, the liquid-phase synthesized Mg-TiO₂ nanocomposites exhibited higher tensile and compression properties than those primarily processed by solid-phase synthesis. The tensile-compression asymmetry values of the synthesized Mg-TiO₂ nanocomposite was found to be lower than that of pure Mg with solid-phase synthesized Mg 1.98 vol % TiO₂ nanocomposite exhibiting as low as 1.06.
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Affiliation(s)
- Ganesh Kumar Meenashisundaram
- Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Singapore.
| | - Mui Hoon Nai
- Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Singapore.
| | - Manoj Gupta
- Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Singapore.
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128
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Kim C, Kendall MR, Miller MA, Long CL, Larson PR, Humphrey MB, Madden AS, Tas AC. Comparison of titanium soaked in 5 M NaOH or 5 M KOH solutions. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 33:327-39. [PMID: 23565038 DOI: 10.1016/j.msec.2012.08.047] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Commercially pure titanium plates/coupons and pure titanium powders were soaked for 24 h in 5 M NaOH and 5 M KOH solutions, under identical conditions, over the temperature range of 37° to 90 °C. Wettability of the surfaces of alkali-treated cpTi coupons was studied by using contact angle goniometry. cpTi coupons soaked in 5 M NaOH or 5 M KOH solutions were found to have hydrophilic surfaces. Hydrous alkali titanate nanofibers and nanotubes were identified with SEM/EDXS and grazing incidence XRD. Surface areas of Ti powders increased > 50–220 times, depending on the treatment, when soaked in the above solutions. A solution was developed to coat amorphous calcium phosphate, instead of hydroxyapatite, on Ti coupon surfaces. In vitro cell culture tests were performed with osteoblast-like cells on the alkali-treated samples.
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Affiliation(s)
- Christina Kim
- Oklahoma School of Science and Mathematics, Oklahoma City, OK 73104, USA
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129
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Prado RFD, de Oliveira FS, Nascimento RD, de Vasconcellos LMR, Carvalho YR, Cairo CAA. Osteoblast response to porous titanium and biomimetic surface: In vitro analysis. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 52:194-203. [DOI: 10.1016/j.msec.2015.03.028] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Revised: 01/21/2015] [Accepted: 03/22/2015] [Indexed: 01/08/2023]
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130
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Mumjitha M, Raj V. Fabrication of TiO2–SiO2 bioceramic coatings on Ti alloy and its synergetic effect on biocompatibility and corrosion resistance. J Mech Behav Biomed Mater 2015; 46:205-21. [DOI: 10.1016/j.jmbbm.2015.02.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 02/06/2015] [Accepted: 02/09/2015] [Indexed: 01/10/2023]
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131
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Khanna R, Kokubo T, Matsushita T, Nomura Y, Nose N, Oomori Y, Yoshida T, Wakita K, Takadama H. Novel artificial hip joint: A layer of alumina on Ti-6Al-4V alloy formed by micro-arc oxidation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 55:393-400. [PMID: 26117770 DOI: 10.1016/j.msec.2015.05.021] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Revised: 03/23/2015] [Accepted: 05/07/2015] [Indexed: 01/27/2023]
Abstract
In many hip replacement surgeries, monolithic alumina is used as a femoral head due to its high wear resistance. However, it is liable to fracture under load bearing operations in artificial joints. We propose a promising way to overcome this limitation by forming a dense alumina layer onto a relatively tough substrate such as Ti-6Al-4V alloy to obtain high wear resistance on a material that can sustain relatively high toughness. For this purpose, Al metal powders were deposited onto Ti-6Al-4V alloy by cold spraying in N2 atmosphere. Interfacial adhesion between Al and the Ti alloy was improved by the formation of a reaction layer of Al3Ti between them by heating at 640 °C for 1h in air. Subsequently, micro-arc oxidation treatment was performed to oxidize Al. The oxidized layer was composed of an outer porous layer of γ-alumina and inner-most dense layer of α-alumina. The α-alumina layer was almost fully densified and exhibited high Vickers hardness almost equal to that of alumina ceramics used as the femoral head. Thus, the newly developed dense alumina/Ti alloy can be potentially used to produce the reliable bearing surfaces of artificial hip joint.
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Affiliation(s)
- Rohit Khanna
- Department of Biomedical Sciences, College of Life & Health Sciences, Chubu University, 1200 Matsumoto cho, Kasugai, Aichi 487-8501, Japan.
| | - Tadashi Kokubo
- Department of Biomedical Sciences, College of Life & Health Sciences, Chubu University, 1200 Matsumoto cho, Kasugai, Aichi 487-8501, Japan
| | - Tomiharu Matsushita
- Department of Biomedical Sciences, College of Life & Health Sciences, Chubu University, 1200 Matsumoto cho, Kasugai, Aichi 487-8501, Japan
| | - Yuuji Nomura
- Taiyo Nippon Sanso, Inc., 1-3-26, Koyama, Shinagawa 142-8558, Tokyo, Japan
| | - Norihiro Nose
- Taiyo Nippon Sanso, Inc., 1-3-26, Koyama, Shinagawa 142-8558, Tokyo, Japan
| | - Yoshiyuki Oomori
- Taiyo Nippon Sanso, Inc., 1-3-26, Koyama, Shinagawa 142-8558, Tokyo, Japan
| | - Takuya Yoshida
- Graduate School of Electrical and Electronics Engineering, Chubu University, Kasugai, Aichi 487-8501, Japan
| | - Koichi Wakita
- Graduate School of Electrical and Electronics Engineering, Chubu University, Kasugai, Aichi 487-8501, Japan
| | - Hiroaki Takadama
- Department of Biomedical Sciences, College of Life & Health Sciences, Chubu University, 1200 Matsumoto cho, Kasugai, Aichi 487-8501, Japan
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132
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Siddiqui N, Pramanik K, Jabbari E. Osteogenic differentiation of human mesenchymal stem cells in freeze-gelled chitosan/nano β-tricalcium phosphate porous scaffolds crosslinked with genipin. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 54:76-83. [PMID: 26046270 DOI: 10.1016/j.msec.2015.05.005] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Revised: 02/28/2015] [Accepted: 05/02/2015] [Indexed: 11/16/2022]
Abstract
The objective of this work was to investigate material properties and osteogenic differentiation of human mesenchymal stem cells (hMSCs) in genipin (GN) crosslinked chitosan/nano β-tricalcium phosphate (CS/nano β-TCP) scaffolds, and compare the results with tripolyphosphate (TPP) crosslinked scaffolds. Porous crosslinked CS/nano β-TCP scaffolds were produced by freeze-gelation using GN (CBG scaffold) and TPP (CBT scaffold) as crosslinkers. The prepared CBT and CBG scaffolds were characterized with respect to porosity, pore size, water content, wettability, compressive strength, mass loss, and osteogenic differentiation of hMSCs. All scaffolds displayed interconnected honeycomb-like microstructures. There was a significant difference between the average pore size, porosity, contact angle, and percent swelling of CBT and CBG scaffolds. The average pore size of CBG scaffolds was higher than CBT, the porosity of CBG was lower than CBT, the water contact angle of CBG was higher than CBT, and the percent swelling of CBG was lower than CBT. At a given crosslinker concentration, there was not a significant difference in compressive modulus and mass loss of CBG and CBT scaffolds. Metabolic activity of hMSCs seeded in CBG scaffolds was slightly higher than CBT. Furthermore, CBG scaffolds displayed slightly higher extent of mineralization after 21 days of incubation in osteogenic medium compared to CBT.
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Affiliation(s)
- Nadeem Siddiqui
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela 769008, India
| | - Krishna Pramanik
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela 769008, India
| | - Esmaiel Jabbari
- Biomimetic Materials and Tissue Engineering Laboratory, Department of Chemical Engineering, University of South Carolina, Columbia, SC, USA.
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133
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Periodontal-like gingival connective tissue attachment on titanium surface with nano-ordered spikes and pores created by alkali-heat treatment. Dent Mater 2015; 31:e116-30. [DOI: 10.1016/j.dental.2015.01.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Revised: 11/11/2014] [Accepted: 01/27/2015] [Indexed: 12/22/2022]
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134
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Zhou R, Wei D, Cao J, Feng W, Cheng S, Du Q, Li B, Wang Y, Jia D, Zhou Y. Synergistic effects of surface chemistry and topologic structure from modified microarc oxidation coatings on Ti implants for improving osseointegration. ACS APPLIED MATERIALS & INTERFACES 2015; 7:8932-41. [PMID: 25860058 DOI: 10.1021/acsami.5b02226] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Microarc oxidation (MAO) coating containing Ca, P, Si, and Na elements on a titanium (Ti) implant has been steam-hydrothermally treated and further mediated by post-heat treatment to overcome the compromised bone-implant integration. The bone regeneration, bone-implant contact, and biomechanical push-out force of the modified Ti implants are discussed thoroughly in this work. The best in vivo performances for the steam-hydrothermally treated one is attributed to the synergistic effects of surface chemistry and topologic structure. Through post-heat treatment, we can decouple the effects of surface chemistry and the nanoscale topologic structure easily. Attributed to the excellent in vivo performance of the surface-modified Ti implant, the steam-hydrothermal treatment could be a promising strategy to improve the osseointegration of the MAO coating covered Ti implant.
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Affiliation(s)
- Rui Zhou
- †Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150080, P. R. China
| | - Daqing Wei
- †Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150080, P. R. China
| | - Jianyun Cao
- †Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150080, P. R. China
| | - Wei Feng
- †Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150080, P. R. China
| | - Su Cheng
- ‡Department of Mechanical Engineering, Harbin University of Science and Technology, Harbin, 150001, P. R. China
| | - Qing Du
- †Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150080, P. R. China
| | - Baoqiang Li
- †Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150080, P. R. China
| | - Yaming Wang
- †Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150080, P. R. China
| | - Dechang Jia
- †Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150080, P. R. China
| | - Yu Zhou
- †Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150080, P. R. China
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135
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Fraioli R, Rechenmacher F, Neubauer S, Manero JM, Gil J, Kessler H, Mas-Moruno C. Mimicking bone extracellular matrix: Integrin-binding peptidomimetics enhance osteoblast-like cells adhesion, proliferation, and differentiation on titanium. Colloids Surf B Biointerfaces 2015; 128:191-200. [DOI: 10.1016/j.colsurfb.2014.12.057] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 11/27/2014] [Accepted: 12/24/2014] [Indexed: 02/01/2023]
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136
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Zhou R, Wei D, Cao J, Feng W, Cheng S, Du Q, Li B, Wang Y, Jia D, Zhou Y. The effect of NaOH concentration on the steam-hydrothermally treated bioactive microarc oxidation coatings containing Ca, P, Si and Na on pure Ti surface. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 49:669-680. [DOI: 10.1016/j.msec.2015.01.062] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 12/12/2014] [Accepted: 01/16/2015] [Indexed: 10/24/2022]
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137
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Shin E, Kim IY, Cho SB, Ohtsuki C. Hydroxyapatite formation on titania-based materials in a solution mimicking body fluid: Effects of manganese and iron addition in anatase. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 48:279-86. [DOI: 10.1016/j.msec.2014.12.041] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Revised: 11/12/2014] [Accepted: 12/07/2014] [Indexed: 10/24/2022]
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138
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Kokubo T, Yamaguchi S. Bioactive titanate layers formed on titanium and its alloys by simple chemical and heat treatments. Open Biomed Eng J 2015; 9:29-41. [PMID: 25893014 PMCID: PMC4391211 DOI: 10.2174/1874120701509010029] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 08/26/2014] [Accepted: 08/27/2014] [Indexed: 12/26/2022] Open
Abstract
To reveal general principles for obtaining bone-bonding bioactive metallic titanium, Ti metal was heat-treated after exposure to a solution with different pH. The material formed an apatite layer at its surface in simulated body fluid when heat-treated after exposure to a strong acid or alkali solution, because it formed a positively charged titanium oxide and negatively charged sodium titanate film on its surface, respectively. Such treated these Ti metals tightly bonded to living bone. Porous Ti metal heat-treated after exposure to an acidic solution exhibited not only osteoconductive, but also osteoinductive behavior. Porous Ti metal exposed to an alkaline solution also exhibits osteoconductivity as well as osteoinductivity, if it was subsequently subjected to acid and heat treatments. These acid and heat treatments were not effective for most Ti-based alloys. However, even those alloys exhibited apatite formation when they were subjected to acid and heat treatment after a NaOH treatment, since the alloying elements were removed from the surface by the latter. The NaOH and heat treatments were also not effective for Ti-Zr-Nb-Ta alloys. These alloys displayed apatite formation when subjected to CaCl2 treatment after NaOH treatment, forming Ca-deficient calcium titanate at their surfaces after subsequent heat and hot water treatments. The bioactive Ti metal subjected to NaOH and heat treatments has been clinically used as an artificial hip joint material in Japan since 2007. A porous Ti metal subjected to NaOH, HCl and heat treatments has successfully undergone clinical trials as a spinal fusion device.
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Affiliation(s)
- Tadashi Kokubo
- Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University 1200 Matsumoto-chow, Kasugai, Aichi 487-8501 Japan
| | - Seiji Yamaguchi
- Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University 1200 Matsumoto-chow, Kasugai, Aichi 487-8501 Japan
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139
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Zykova A, Safonov V, Yanovska A, Sukhodub L, Rogovskaya R, Smolik J, Yakovin S. Formation of Solution-derived Hydroxyapatite Coatings on Titanium Alloy in the Presence of Magnetron-sputtered Alumina Bond Coats. Open Biomed Eng J 2015; 9:75-82. [PMID: 25893018 PMCID: PMC4391219 DOI: 10.2174/1874120701509010075] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 08/12/2014] [Accepted: 08/14/2014] [Indexed: 11/22/2022] Open
Abstract
Hydroxyapatite Ca10(PO4)6(OH)2 (HAp) and calcium phosphate ceramic materials and coatings are widely used in medicine and dentistry because of their ability to enhance the tissue response to implant surfaces and promote bone ingrowth and osseoconduction processes. The deposition conditions have a great influence on the structure and biofunctionality of calcium phosphate coatings. Corrosion processes and poor adhesion to substrate material reduce the lifetime of implants with calcium phosphate coatings. The research has focused on the development of advanced methods to deposit double-layered ceramic oxide/calcium phosphate coatings by a hybrid technique of magnetron sputtering and thermal methods. The thermal method can promote the crystallization and the formation of HAp coatings on titanium alloy Ti6Al4V substrates at low temperature, based on the principle that the solubility of HAp in aqueous solutions decreases with increasing substrate temperature. By this method, hydroxyapatite directly coated the substrate without precipitation in the initial solution. Using a thermal substrate method, calcium phosphate coatings were prepared at substrate temperatures of 100-105 oC. The coated metallic implant surfaces with ceramic bond coats and calcium phosphate layers combine the excellent mechanical properties of metals with the chemical stability of ceramic materials. The corrosion test results show that the ceramic oxide (alumina) coatings and the double-layered alumina-calcium phosphate coatings improve the corrosion resistance compared with uncoated Ti6Al4V and single-layered Ti6Al4V/calcium phosphate substrates. In addition, the double-layered alumina/hydroxyapatite coatings demonstrate the best biocompatibility during in vitro tests.
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Affiliation(s)
- Anna Zykova
- National Science Centre, Kharkov Institute of Physics and Technology, Kharkov, Ukraine
| | - Vladimir Safonov
- National Science Centre, Kharkov Institute of Physics and Technology, Kharkov, Ukraine
| | - Anna Yanovska
- Institute of Applied Physics National Academy of Sciences of Ukraine, Sumy, Ukraine ; Sumy State University, Medical Institute, Ministry of Education and Science, Sumy, Ukraine
| | - Leonid Sukhodub
- Sumy State University, Medical Institute, Ministry of Education and Science, Sumy, Ukraine
| | - Renata Rogovskaya
- Institute for Sustainable Technologies, National Research Institute, Radom, Poland
| | - Jerzy Smolik
- Institute for Sustainable Technologies, National Research Institute, Radom, Poland
| | - Stas Yakovin
- Department of Physical Technologies, Kharkov National University, Kharkov, Ukraine
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140
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Lin X, de Groot K, Wang D, Hu Q, Wismeijer D, Liu Y. A review paper on biomimetic calcium phosphate coatings. Open Biomed Eng J 2015; 9:56-64. [PMID: 25893016 PMCID: PMC4391212 DOI: 10.2174/1874120701509010056] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 05/31/2014] [Accepted: 08/30/2014] [Indexed: 12/14/2022] Open
Abstract
Biomimetic calcium phosphate coatings have been developed for bone regeneration and repair because of their biocompatibility, osteoconductivity, and easy preparation. They can be rendered osteoinductive by incorporating an osteogenic agent, such as bone morphogenetic protein 2 (BMP-2), into the crystalline lattice work in physiological situations. The biomimetic calcium phosphate coating enables a controlled, slow and local release of BMP-2 when it undergoes cell mediated coating degradation induced by multinuclear cells, such as osteoclasts and foreign body giant cells, which mimics a physiologically similar release mode, to achieve sustained ectopic or orthotopic bone formation. Therefore, biomimetic calcium phosphate coatings are considered to be a promising delivery vehicle for osteogenic agents. In this review, we present an overview of biomimetic calcium phosphate coatings including their preparation techniques, physico-chemical properties, potential as drug carrier, and their pre-clinical application both in ectopic and orthotopic animal models. We briefly review some features of hydroxyapatite coatings and their clinical applications to gain insight into the clinical applications of biomimetic calcium phosphate coatings in the near future.
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Affiliation(s)
- X Lin
- Department of Oral Implantology, Academic Centre of Dentistry Amsterdam (ACTA), VU University and University of Amsterdam, Amsterdam, The Netherlands ; Department of Orthodontics, Affiliated Stomatological Hospital of Medical School, Nanjing University, Nanjing, China
| | - K de Groot
- Department of Oral Implantology, Academic Centre of Dentistry Amsterdam (ACTA), VU University and University of Amsterdam, Amsterdam, The Netherlands
| | - D Wang
- Department of Oral Implantology, Academic Centre of Dentistry Amsterdam (ACTA), VU University and University of Amsterdam, Amsterdam, The Netherlands
| | - Q Hu
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital of Medical School, Nanjing University, Nanjing, China
| | - D Wismeijer
- Department of Oral Implantology, Academic Centre of Dentistry Amsterdam (ACTA), VU University and University of Amsterdam, Amsterdam, The Netherlands
| | - Y Liu
- Department of Oral Implantology, Academic Centre of Dentistry Amsterdam (ACTA), VU University and University of Amsterdam, Amsterdam, The Netherlands
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141
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Amin Yavari S, Chai YC, Böttger AJ, Wauthle R, Schrooten J, Weinans H, Zadpoor AA. Effects of anodizing parameters and heat treatment on nanotopographical features, bioactivity, and cell culture response of additively manufactured porous titanium. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 51:132-8. [PMID: 25842117 DOI: 10.1016/j.msec.2015.02.050] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Revised: 01/14/2015] [Accepted: 02/24/2015] [Indexed: 01/09/2023]
Abstract
Anodizing could be used for bio-functionalization of the surfaces of titanium alloys. In this study, we use anodizing for creating nanotubes on the surface of porous titanium alloy bone substitutes manufactured using selective laser melting. Different sets of anodizing parameters (voltage: 10 or 20V anodizing time: 30min to 3h) are used for anodizing porous titanium structures that were later heat treated at 500°C. The nanotopographical features are examined using electron microscopy while the bioactivity of anodized surfaces is measured using immersion tests in the simulated body fluid (SBF). Moreover, the effects of anodizing and heat treatment on the performance of one representative anodized porous titanium structures are evaluated using in vitro cell culture assays using human periosteum-derived cells (hPDCs). It has been shown that while anodizing with different anodizing parameters results in very different nanotopographical features, i.e. nanotubes in the range of 20 to 55nm, anodized surfaces have limited apatite-forming ability regardless of the applied anodizing parameters. The results of in vitro cell culture show that both anodizing, and thus generation of regular nanotopographical feature, and heat treatment improve the cell culture response of porous titanium. In particular, cell proliferation measured using metabolic activity and DNA content was improved for anodized and heat treated as well as for anodized but not heat-treated specimens. Heat treatment additionally improved the cell attachment of porous titanium surfaces and upregulated expression of osteogenic markers. Anodized but not heat-treated specimens showed some limited signs of upregulated expression of osteogenic markers. In conclusion, while varying the anodizing parameters creates different nanotube structure, it does not improve apatite-forming ability of porous titanium. However, both anodizing and heat treatment at 500°C improve the cell culture response of porous titanium.
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Affiliation(s)
- S Amin Yavari
- Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology (TU Delft), Mekelweg 2, 2628 CD Delft, The Netherlands.
| | - Y C Chai
- Prometheus, Division of Skeletal Tissue Engineering, Bus 813, O&N1, Herestraat 49, KU Leuven, 3000 Leuven, Belgium; Tissue Engineering Laboratory, Skeletal Biology and Engineering Research Center, Bus 813, O&N1, Herestraat 49, KU Leuven, 3000 Leuven, Belgium; Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - A J Böttger
- Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology (TU Delft), Mekelweg 2, 2628 CD Delft, The Netherlands
| | - R Wauthle
- KU Leuven, Department of Mechanical Engineering, Section Production Engineering, Machine Design and Automation (PMA), Celestijnenlaan 300B, 3001 Leuven, Belgium; 3D Systems - LayerWise NV, Grauwmeer 14, 3001 Leuven, Belgium
| | - J Schrooten
- Department of Metallurgy and Materials Engineering, KU Leuven, Kasteelpark Arenberg 44 - PB2450, B-3001 Heverlee, Belgium
| | - H Weinans
- Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology (TU Delft), Mekelweg 2, 2628 CD Delft, The Netherlands; Department of Orthopedics and Dept. Rheumatology, UMC Utrecht, Heidelberglaan100, 3584CX Utrecht, The Netherlands
| | - A A Zadpoor
- Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology (TU Delft), Mekelweg 2, 2628 CD Delft, The Netherlands
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142
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Zhao QM, Yang HL, Liu ZT, Gu XF, Li C, Feng DH. Fabrication of hydroxyapatite on pure titanium by micro-arc oxidation coupled with microwave-hydrothermal treatment. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2015; 26:88. [PMID: 25649513 DOI: 10.1007/s10856-015-5429-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Accepted: 12/08/2014] [Indexed: 06/04/2023]
Abstract
Porous hydroxyapatite (HA)-containing composite films were prepared by a novel method consisting of micro-arc oxidation (MAO) combined with microwave-hydrothermal (M-H) treatment. The morphology, composition and phase composition of the bioactive films were investigated with scanning electron microscopy with energy dispersive X-ray spectroscopy and X-ray diffraction. MTT assay was carried out to investigate the in vitro effects of the different surfaces on bone integration properties. The prepared MAO films consisted mainly of anatase, rutile and tricalcium phosphate along with amorphous calcium (Ca) and phosphorus (P) phases. The M-H-treated composite films were composed primarily of anatase, rutile and HA. As the time and temperature of the M-H treatment increased, the number of HA crystals gradually increased. Using the M-H method, HA was obtained at a lower temperature and in a shorter period of time compared to the conventional hydrothermal method. The results suggest that the M-H method significantly decreases the hydrothermal reaction temperature and also greatly shortens the reaction time. Due to the nanocrystallinity and porosity of the prepared composite films, the method presented here shows promise for the formation of bioactive materials for medical applications.
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Affiliation(s)
- Quan-ming Zhao
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China
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143
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Zhou R, Wei D, Ke H, Cao J, Li B, Cheng S, Feng W, Wang Y, Jia D, Zhou Y. H2Ti5O11·H2O nanorod arrays formed on a Ti surface via a hybrid technique of microarc oxidation and chemical treatment. CrystEngComm 2015. [DOI: 10.1039/c4ce02475c] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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144
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LIU C, MATSUNAMI C, SHIROSAKI Y, MIYAZAKI T. Bioactive Co-Cr alloy for biomedical applications prepared by surface modification using self-assembled monolayers and poly-γ-glutamic acid. Dent Mater J 2015; 34:707-12. [DOI: 10.4012/dmj.2015-064] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Chao LIU
- Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology
| | - Chisato MATSUNAMI
- Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology
| | - Yuki SHIROSAKI
- Frontier Research Academy for Young Researchers, Kyushu Institute of Technology
| | - Toshiki MIYAZAKI
- Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology
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145
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Hirota M, Shimpo H, Ohkubo C, Umegaki T, Toyama T, Hayakawa T. Bone Adaptation of Fibronectin-Immobilized Titanium Implants Using a Tresyl Chloride-Activated Method. J HARD TISSUE BIOL 2015. [DOI: 10.2485/jhtb.24.341] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Masatsugu Hirota
- Department of Dental Engineering, Tsurumi University School of Dental Medicine
| | - Hidemasa Shimpo
- Department of Removable Prosthodontics, Tsurumi University School of Dental Medicine
| | - Chikahiro Ohkubo
- Department of Removable Prosthodontics, Tsurumi University School of Dental Medicine
| | - Tetsushi Umegaki
- Department of Materials and Applied Chemistry, College of Science and Technology, Nihon University
| | - Takeshi Toyama
- Department of Materials and Applied Chemistry, College of Science and Technology, Nihon University
| | - Tohru Hayakawa
- Department of Dental Engineering, Tsurumi University School of Dental Medicine
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146
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Komasa S, Yingmin S, Taguchi Y, Yamawaki I, Tsutsumi Y, Kusumoto T, Nishizaki H, Miyake T, Umeda M, Tanaka M, Okazaki J. Bioactivity of Titanium Surface Nanostructures Following Chemical Processing and Heat Treatment. J HARD TISSUE BIOL 2015. [DOI: 10.2485/jhtb.24.257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Satoshi Komasa
- Department of Removable Prosthodontics and Occlusion, Osaka Dental University
| | - Su Yingmin
- Department of Removable Prosthodontics and Occlusion, Osaka Dental University
| | | | - Isao Yamawaki
- Department of Periodontology, Osaka Dental University
| | - Yoshifumi Tsutsumi
- Department of Fixed Prosthodontics and Occlusion, Osaka Dental University
| | - Tetsuji Kusumoto
- Department of Fixed Prosthodontics and Occlusion, Osaka Dental University
| | - Hiroshi Nishizaki
- Department of Removable Prosthodontics and Occlusion, Osaka Dental University
| | - Tatsuro Miyake
- Department of Preventive and Community Dentistry, Osaka Dental University
| | - Makoto Umeda
- Department of Periodontology, Osaka Dental University
| | - Masahiro Tanaka
- Department of Fixed Prosthodontics and Occlusion, Osaka Dental University
| | - Joji Okazaki
- Department of Removable Prosthodontics and Occlusion, Osaka Dental University
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147
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Prabu V, Karthick P, Rajendran A, Natarajan D, Kiran MS, Pattanayak DK. Bioactive Ti alloy with hydrophilicity, antibacterial activity and cytocompatibility. RSC Adv 2015. [DOI: 10.1039/c5ra04077a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Schematic representation of Ti64 alloy with antibacterial activity, bioactivity and cell compatibility.
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Affiliation(s)
- Vinod Prabu
- CSIR-Central Electrochemical Research Institute
- Karaikudi
- India
| | - P. Karthick
- CSIR-Central Electrochemical Research Institute
- Karaikudi
- India
| | | | | | - M. S. Kiran
- CSIR-Central Leather Research Institute
- Chennai
- India
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148
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Gopi D, Shinyjoy E, Karthika A, Nithiya S, Kavitha L, Rajeswari D, Tang T. Single walled carbon nanotubes reinforced mineralized hydroxyapatite composite coatings on titanium for improved biocompatible implant applications. RSC Adv 2015. [DOI: 10.1039/c5ra04382d] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Carbon nanotubes reinforced mineralized hydroxyapatite (CNT/M-HAP) composite coating on titanium by pulsed electrodeposition is a promising approach to produce bioimplants with better osseointegration capacity and improved mechanical property.
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Affiliation(s)
- D. Gopi
- Department of Chemistry
- Periyar University
- Salem 636011
- India
- Centre for Nanoscience and Nanotechnology
| | - E. Shinyjoy
- Department of Chemistry
- Periyar University
- Salem 636011
- India
| | - A. Karthika
- Department of Chemistry
- Periyar University
- Salem 636011
- India
| | - S. Nithiya
- Department of Chemistry
- Periyar University
- Salem 636011
- India
| | - L. Kavitha
- Department of Physics
- School of Basic and Applied Sciences
- Central University of Tamilnadu
- Thiruvarur 610 101
- India
| | - D. Rajeswari
- Department of Chemistry
- Periyar University
- Salem 636011
- India
| | - Tingting Tang
- Shanghai Key Laboratory of Orthopaedic Implants
- Department of Orthopedic Surgery
- Shanghai Ninth People's Hospital
- Shanghai Jiaotong University School of Medicine
- Shanghai 20011
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149
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Rau JV, Cacciotti I, Laureti S, Fosca M, Varvaro G, Latini A. Bioactive, nanostructured Si-substituted hydroxyapatite coatings on titanium prepared by pulsed laser deposition. J Biomed Mater Res B Appl Biomater 2014; 103:1621-31. [PMID: 25557461 DOI: 10.1002/jbm.b.33344] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Revised: 10/27/2014] [Accepted: 12/02/2014] [Indexed: 11/11/2022]
Abstract
AIMS The aim of this work was to deposit silicon-substituted hydroxyapatite (Si-HAp) coatings on titanium for biomedical applications, since it is known that Si-HAp is able to promote osteoblastic cells activity, resulting in the enhanced bone ingrowth. MATERIALS AND METHODS Pulsed laser deposition (PLD) method was used for coatings preparation. For depositions, Si-HAp targets (1.4 wt % of Si), made up from nanopowders synthesized by wet method, were used. RESULTS Microstructural and mechanical properties of the produced coatings, as a function of substrate temperature, were investigated by scanning electron and atomic force microscopies, X-ray diffraction, Fourier transform infrared spectroscopy, and Vickers microhardness. In the temperature range of 400-600°C, 1.4-1.5 µm thick Si-HAp films, presenting composition similar to that of the used target, were deposited. The prepared coatings were dense, crystalline, and nanostructured, characterized by nanotopography of surface and enhanced hardness. Whereas the substrate temperature of 750°C was too high and led to the HAp decomposition. Moreover, the bioactivity of coatings was evaluated by in vitro tests in an osteoblastic/osteoclastic culture medium (α-Modified Eagle's Medium). CONCLUSIONS The prepared bioactive Si-HAp coatings could be considered for applications in orthopedics and dentistry to improve the osteointegration of bone implants.
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Affiliation(s)
- Julietta V Rau
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche, Via del Fosso del Cavaliere, 100-00133, Rome, Italy
| | - Ilaria Cacciotti
- Università di Roma "Niccolò Cusano", Via Don Carlo Gnocchi, 3-00166, Rome, Italy.,Dipartimento di Ingegneria dell'Impresa, Università di Roma "Tor Vergata", UdR INSTM-"Roma Tor Vergata", Via del Politecnico, 1-00133, Rome, Italy
| | - Sara Laureti
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche, 00016, Monterotondo Scalo (RM), Italy
| | - Marco Fosca
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche, Via del Fosso del Cavaliere, 100-00133, Rome, Italy
| | - Gaspare Varvaro
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche, 00016, Monterotondo Scalo (RM), Italy
| | - Alessandro Latini
- Dipartimento di Chimica, Università di Roma "La Sapienza", Piazzale Aldo Moro, 5-00185, Rome, Italy
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150
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Choi M, Yong K. A facile strategy to fabricate high-quality single crystalline brookite TiO₂ nanoarrays and their photoelectrochemical properties. NANOSCALE 2014; 6:13900-13909. [PMID: 25308281 DOI: 10.1039/c4nr04735d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Vertically aligned high-quality single crystalline brookite TiO2 nanoarrays were synthesized for the first time using an environmentally benign one-step hydrothermal reaction. They have a unique bullet-shaped structure which has a length of 700-1000 nm and a width of 150-250 nm with a sharpened tip structure. By adjusting the concentration of NaOH in hydrothermal reaction, we could also synthesize other types of TiO2 nanostructures including anatase TiO2 nanotubes/nanowires. The morphologies and crystal structures of the products were confirmed by scanning electron microscopy, transmission electron microscopy and X-ray diffraction analysis. Their vertically aligned structures facilitate their application as photoanodes in photoelectrochemical cells, and the photoelectrochemical properties such as photocurrent density and open circuit voltage were measured in a three-electrode electrochemical cell with TiO2 nanoarrays, Ag/AgCl and a Pt flag as the working, reference and counter electrodes, respectively, incorporating a 0.1 M NaOH electrolyte solution. The fabricated brookite TiO2 nanoarrays exhibited a highly enhanced photocurrent density and a longer electron lifetime compared with anatase TiO2 nanoarrays with similar lengths.
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Affiliation(s)
- Mingi Choi
- Surface Chemistry Laboratory of Electronic Materials (SCHEMA) and Department of Chemical Engineering and Pohang University of Science and Technology (POSTECH), Pohang, 790-784, Korea.
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