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Abstract
Implant-associated infections (IAIs) are among the most intractable and costly complications in implant surgery. They can lead to surgery failure, a high economic burden, and a decrease in patient quality of life. This manuscript is devoted to introducing current antimicrobial strategies for additively manufactured (AM) titanium (Ti) implants and fostering a better understanding in order to pave the way for potential modern high-throughput technologies. Most bactericidal strategies rely on implant structure design and surface modification. By means of rational structural design, the performance of AM Ti implants can be improved by maintaining a favorable balance between the mechanical, osteogenic, and antibacterial properties. This subject becomes even more important when working with complex geometries; therefore, it is necessary to select appropriate surface modification techniques, including both topological and chemical modification. Antibacterial active metal and antibiotic coatings are among the most commonly used chemical modifications in AM Ti implants. These surface modifications can successfully inhibit bacterial adhesion and biofilm formation, and bacterial apoptosis, leading to improved antibacterial properties. As a result of certain issues such as drug resistance and cytotoxicity, the development of novel and alternative antimicrobial strategies is urgently required. In this regard, the present review paper provides insights into the enhancement of bactericidal properties in AM Ti implants.
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Panseri S, Montesi M, Hautcoeur D, Dozio SM, Chamary S, De Barra E, Tampieri A, Leriche A. Bone-like ceramic scaffolds designed with bioinspired porosity induce a different stem cell response. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2021; 32:3. [PMID: 33471246 PMCID: PMC7817586 DOI: 10.1007/s10856-020-06486-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 12/18/2020] [Indexed: 05/12/2023]
Abstract
Biomaterial science increasingly seeks more biomimetic scaffolds that functionally augment the native bone tissue. In this paper, a new concept of a structural scaffold design is presented where the physiological multi-scale architecture is fully incorporated in a single-scaffold solution. Hydroxyapatite (HA) and β-tricalcium phosphate (β-TCP) bioceramic scaffolds with different bioinspired porosity, mimicking the spongy and cortical bone tissue, were studied. In vitro experiments, looking at the mesenchymal stem cells behaviour, were conducted in a perfusion bioreactor that mimics the physiological conditions in terms of interstitial fluid flow and associated induced shear stress. All the biomaterials enhanced cell adhesion and cell viability. Cortical bone scaffolds, with an aligned architecture, induced an overexpression of several late stage genes involved in the process of osteogenic differentiation compared to the spongy bone scaffolds. This study reveals the exciting prospect of bioinspired porous designed ceramic scaffolds that combines both cortical and cancellous bone in a single ceramic bone graft. It is prospected that dual core shell scaffold could significantly modulate osteogenic processes, once implanted in patients, rapidly forming mature bone tissue at the tissue interface, followed by subsequent bone maturation in the inner spongy structure.
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Affiliation(s)
- Silvia Panseri
- Institute of Science and Technology for Ceramics, National Research Council, Faenza, Italy.
| | - Monica Montesi
- Institute of Science and Technology for Ceramics, National Research Council, Faenza, Italy
| | - Dominique Hautcoeur
- Belgian Ceramic Research Centre, Avenue Gouverneur Cornez 4, B-7000, Mons, Belgium
| | - Samuele M Dozio
- Institute of Science and Technology for Ceramics, National Research Council, Faenza, Italy
| | - Shaan Chamary
- Université Polytechnique Hauts-de-France, Laboratoire des Matériaux Céramiques et Procédés Associés, 59313, Valenciennes, France
| | - Eamonn De Barra
- University of Limerick, Bernal Institute, Limerick, V94 T9PX, Ireland
| | - Anna Tampieri
- Institute of Science and Technology for Ceramics, National Research Council, Faenza, Italy
| | - Anne Leriche
- Université Polytechnique Hauts-de-France, Laboratoire des Matériaux Céramiques et Procédés Associés, 59313, Valenciennes, France
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Long J, Nand A, Ray S. Application of Spectroscopy in Additive Manufacturing. MATERIALS 2021; 14:ma14010203. [PMID: 33406712 PMCID: PMC7795079 DOI: 10.3390/ma14010203] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/28/2020] [Accepted: 12/29/2020] [Indexed: 02/05/2023]
Abstract
Additive manufacturing (AM) is a rapidly expanding material production technique that brings new opportunities in various fields as it enables fast and low-cost prototyping as well as easy customisation. However, it is still hindered by raw material selection, processing defects and final product assessment/adjustment in pre-, in- and post-processing stages. Spectroscopic techniques offer suitable inspection, diagnosis and product trouble-shooting at each stage of AM processing. This review outlines the limitations in AM processes and the prospective role of spectroscopy in addressing these challenges. An overview on the principles and applications of AM techniques is presented, followed by the principles of spectroscopic techniques involved in AM and their applications in assessing additively manufactured parts.
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Affiliation(s)
- Jingjunjiao Long
- Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu 610041, China
- Correspondence: (J.L.); (A.N.); (S.R.)
| | - Ashveen Nand
- School of Environmental and Animal Sciences and School of Healthcare and Social Practice, Unitec Institute of Technology, Auckland 1025, New Zealand
- Correspondence: (J.L.); (A.N.); (S.R.)
| | - Sudip Ray
- MBIE Product Accelerator Programme, School of Chemical Sciences, University of Auckland, Auckland 1010, New Zealand
- Correspondence: (J.L.); (A.N.); (S.R.)
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Jang TS, Kim D, Han G, Yoon CB, Jung HD. Powder based additive manufacturing for biomedical application of titanium and its alloys: a review. Biomed Eng Lett 2020; 10:505-516. [PMID: 33194244 PMCID: PMC7655882 DOI: 10.1007/s13534-020-00177-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 09/09/2020] [Accepted: 10/15/2020] [Indexed: 10/23/2022] Open
Abstract
Powder based additive manufacturing (AM) technology of Ti and its alloys has received great attention in biomedical applications owing to its advantages such as customized fabrication, potential to be cost-, time-, and resource-saving. The performance of additive manufactured implants or scaffolds strongly depends on various kinds of AM technique and the quality of Ti and its alloy powders. This paper has specifically covered the process of commonly used powder-based AM technique and the powder production of Ti and its alloy. The selected techniques include laser-based powder bed fusion of metals (PBF-LB/M), electron beam powder bed fusion of metals (PBF-EB/M), and directed energy deposition utilized in the production of the biomaterials are discussed as well as the powder fed system of binder jetting. Moreover, titanium based powder production methods such as gas atomization, plasma atomization, and plasma rotating electrode process are also discussed.
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Affiliation(s)
- Tae-Sik Jang
- Department of Materials Science and Engineering, Chosun University, Gwangju, 61452 Republic of Korea
| | - DongEung Kim
- Research Institute of Advanced Manufacturing Technology, Korea Institute of Industrial Technology, Incheon, 21999 Republic of Korea
| | - Ginam Han
- Department of Biomedical-Chemical Engineering, Catholic University of Korea, Bucheon-si, 14662 Republic of Korea
| | - Chang-Bun Yoon
- Department of Advanced Materials Engineering, Korea Polytechnic University, Siheung-si, 15073 Republic of Korea
| | - Hyun-Do Jung
- Department of Biomedical-Chemical Engineering, Catholic University of Korea, Bucheon-si, 14662 Republic of Korea
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Abstract
Research on corrosion resistance of cast aluminum alloys is reviewed in this article. The effect of the main microstructural features of cast aluminum alloys such as secondary dendrite arm spacing (SDAS), eutectic silicon morphology, grain size, macrosegregation, microsegregation, and intermetallic compounds is discussed. Moreover, the corrosion resistance of cast aluminum alloys obtained by modern manufacturing processes such as semi-solid and additive manufacturing are analyzed. Finally, the protective effects provided by different coatings on the aluminum cast alloys—such as anodized, plasma electrolytic oxidation (PEO), and laser—is reviewed. Some conclusions and future guidelines for future works are proposed.
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Eliaz N, Foucks N, Geva D, Oren S, Shriki N, Vaknin D, Fishman D, Levi O. Comparative Quality Control of Titanium Alloy Ti-6Al-4V, 17-4 PH Stainless Steel, and Aluminum Alloy 4047 Either Manufactured or Repaired by Laser Engineered Net Shaping (LENS). MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4171. [PMID: 32961785 PMCID: PMC7560294 DOI: 10.3390/ma13184171] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 09/12/2020] [Accepted: 09/15/2020] [Indexed: 11/18/2022]
Abstract
Additive manufacturing attracts much interest for manufacturing and repair of structural parts for the aerospace industry. This paper presents comparative characterization of aircraft items made of Al 4047 alloy, Ti-6Al-4V alloy, and 17-4 precipitation hardened (PH) (AISI 630) stainless steel, either manufactured or repaired by laser engineered net shaping (LENS). Chemical analysis, density, and surface roughness measurements, X-ray micro-computed tomography (μ-CT) analysis, metallography, and micro-hardness testing were conducted. In all three materials, microstructures typical of rapid solidification were observed, along with high density, chemical composition, and hardness comparable to those of the counterpart wrought alloys (even in hard condition). High standard deviation in hardness values, anisotropic geometrical distortion, and overbuild at top edges were observed. The detected defects included partially melted and unmelted powder particles, porosity, and interlayer lack of fusion, in particular at the interface between the substrate plate and the build. There was a fairly good match between the density values measured by μ-CT and those measured by the Archimedes method; there was also good correlation between the type of defects detected by both techniques. Surface roughness, density of partially melted powder particles, and the content of bulk defects were significantly higher in Al 4047 than in 17-4 PH stainless steel and Ti-6Al-4V alloy. Optical gaging can be used reliably for surface roughness measurements. The implications of these findings are discussed.
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Affiliation(s)
- Noam Eliaz
- Biomaterials and Corrosion Lab, Department of Materials Science and Engineering, Tel-Aviv University, Ramat Aviv, Tel Aviv 6997801, Israel;
| | - Nitzan Foucks
- Biomaterials and Corrosion Lab, Department of Materials Science and Engineering, Tel-Aviv University, Ramat Aviv, Tel Aviv 6997801, Israel;
- Materials Science and Engineering Division, Depot 22, Israel Air Force, P.O. Box 02538, Tel Aviv, Israel; (S.O.); (N.S.); (D.V.); (D.F.); (O.L.)
| | - Dolev Geva
- Israel Ministry of Defense, Hakirya, Tel Aviv 61909, Israel;
| | - Shai Oren
- Materials Science and Engineering Division, Depot 22, Israel Air Force, P.O. Box 02538, Tel Aviv, Israel; (S.O.); (N.S.); (D.V.); (D.F.); (O.L.)
| | - Noy Shriki
- Materials Science and Engineering Division, Depot 22, Israel Air Force, P.O. Box 02538, Tel Aviv, Israel; (S.O.); (N.S.); (D.V.); (D.F.); (O.L.)
| | - Danielle Vaknin
- Materials Science and Engineering Division, Depot 22, Israel Air Force, P.O. Box 02538, Tel Aviv, Israel; (S.O.); (N.S.); (D.V.); (D.F.); (O.L.)
| | - Dimitry Fishman
- Materials Science and Engineering Division, Depot 22, Israel Air Force, P.O. Box 02538, Tel Aviv, Israel; (S.O.); (N.S.); (D.V.); (D.F.); (O.L.)
| | - Ofer Levi
- Materials Science and Engineering Division, Depot 22, Israel Air Force, P.O. Box 02538, Tel Aviv, Israel; (S.O.); (N.S.); (D.V.); (D.F.); (O.L.)
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Semetse L, Obadele BA, Raganya L, Geringer J, Olubambi PA. Fretting corrosion behaviour of Ti-6Al-4V reinforced with zirconia in foetal bovine serum. J Mech Behav Biomed Mater 2019; 100:103392. [PMID: 31430704 DOI: 10.1016/j.jmbbm.2019.103392] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 07/08/2019] [Accepted: 08/06/2019] [Indexed: 01/09/2023]
Abstract
Fretting corrosion is a critical challenge in the design of hip prosthesis used in total hip arthroplasty (THA) surgeries. Currently, the design of hip implants includes a tapered junction which introduces additional interfaces that connect different parts of the hip implant such as the femoral neck and head or stem and neck interface. Micro motions that occur under the influence of load, together with chemical changes in the host environment, make these interfaces susceptible to tribocorrosion processes, particularly fretting corrosion. Commonly used metallic biomaterials are based on stainless steels, cobalt chrome-based alloys as well as titanium and titanium alloys. Each of these materials possess some degree of limitations, particularly where tribocorrosion events are concerned. Titanium alloy Ti-6Al-4V is widely used in biomedical applications for non-bearing components of total joint arthroplasty (TJA) surgeries. Its poor wear resistance continues to remain a challenge in load-bearing joints where parts articulate against one another as in the case of modular junctions. Some of the attempts made to improve the wear properties of Ti-6Al-4V is through the incorporation of second phase particles like ceramics in its matrix to produce metal matrix composites of Ti-6Al-4V. The aim of this work is to investigate the effect of zirconia reinforcement on spark plasma sintered Ti-6Al-4V composites (zirconium oxide particles incorporated into Ti-6Al-4V matrix) on the fretting corrosion properties of Ti-6Al-4V. Fretting corrosion tests were carried out on as-sintered Ti-6Al-4V and Ti-6Al-4V with 5 and 10 wt.% ZrO2. The tests were carried out in foetal bovine serum under applied normal loads of 85 and 115 N using the cylinder-on-flat contact configuration. The evolution of OCP, dissipated energy and friction coefficient were recorded throughout the test. Microstructural analysis of the samples before fretting corrosion tests showed the presence of globular agglomerates throughout the Ti-6Al-4V matrix due to zirconia additions; the volume of the agglomerates was higher in the composites having 10 wt.% ZrO2. Ti-6Al-4V composites having zirconia additions produced a nobler OCP during fretting in foetal bovine serum, compared to pure Ti-6Al-4V. Furthermore, the fretting corrosion results showed a significant improvement in the tribocorrosion resistance of Ti-6Al-4V with 10 wt.% ZrO2 at all loads. This composition also produced the least amount of degradation. and metal ion release. Mechanical data showed that increasing the applied normal load promoted a transition from gross slip to partial slip conditions for all compositions. Partial slip was found to be prevalent at a higher normal load (drastic decrease of the dissipated energy and consequently the friction coefficient). This mechanical condition prevents a large amount of degradation.
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Affiliation(s)
- Lerato Semetse
- Centre for Nanoengineering and Tribocorrosion, School of Mining, Metallurgy and Chemical Engineering, University of Johannesburg, Doornfontein Campus, Johannesburg, South Africa.
| | - Babatunde Abiodun Obadele
- Centre for Nanoengineering and Tribocorrosion, School of Mining, Metallurgy and Chemical Engineering, University of Johannesburg, Doornfontein Campus, Johannesburg, South Africa
| | - Lerato Raganya
- Centre for Nanoengineering and Tribocorrosion, School of Mining, Metallurgy and Chemical Engineering, University of Johannesburg, Doornfontein Campus, Johannesburg, South Africa; Light Metals, Materials Science & Manufacturing, Council for Scientific and Industrial Research, Meiring Naudé Road, Brummeria, Pretoria, 0185, South Africa
| | - Jean Geringer
- Univ Lyon, IMT Mines Saint-Etienne, Centre CIS, [STBio] Univ Jean Monnet, INSERM, SainBioSE, F-42023, Saint-Etienne, France
| | - Peter Apata Olubambi
- Centre for Nanoengineering and Tribocorrosion, School of Mining, Metallurgy and Chemical Engineering, University of Johannesburg, Doornfontein Campus, Johannesburg, South Africa
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