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Kozadaeva M, Surmeneva M, Khrapov D, Rybakov V, Surmenev R, Koptyug A, Vladescu Dragomir A, Cotrut CM, Tyurin A, Grubova I. Assessment of Microstructural, Mechanical and Electrochemical Properties of Ti-42Nb Alloy Manufactured by Electron Beam Melting. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4821. [PMID: 37445133 DOI: 10.3390/ma16134821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/20/2023] [Accepted: 06/30/2023] [Indexed: 07/15/2023]
Abstract
The β-type Ti-42Nb alloy has been successfully manufactured from pre-alloyed powder using the E-PBF method for the first time. This study presents thorough microstructural investigations employing diverse methodologies such as EDS, XRD, TEM, and EBSD, while mechanical properties are assessed using UPT, nanoindentation, and compression tests. Microstructural analysis reveals that Ti-42Nb alloy primarily consisted of the β phase with the presence of a small amount of nano-sized α″-martensite formed upon fast cooling. The bimodal-grained microstructure of Ti-42Nb alloy comprising epitaxially grown fine equiaxed and elongated equiaxed β-grains with an average grain size of 40 ± 28 µm exhibited a weak texture. The study shows that the obtained microstructure leads to improved mechanical properties. Young's modulus of 78.69 GPa is significantly lower than that of cp-Ti and Ti-6Al-4V alloys. The yield strength (379 MPa) and hardness (3.2 ± 0.5 GPa) also meet the criteria and closely approximate the values typical of cortical bone. UPT offers a reliable opportunity to study the nature of the ductility of the Ti-42Nb alloy by calculating its elastic constants. XPS surface analysis and electrochemical experiments demonstrate that the better corrosion resistance of the alloy in SBF is maintained by the dominant presence of TiO2 and Nb2O5. The results provide valuable insights into the development of novel low-modulus Ti-Nb alloys, which are interesting materials for additive-manufactured implants with the desired properties required for their biomedical applications.
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Affiliation(s)
- Maria Kozadaeva
- Physical Materials Science and Composite Materials Centre, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 30 Lenina Avenue, 634050 Tomsk, Russia
| | - Maria Surmeneva
- Physical Materials Science and Composite Materials Centre, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 30 Lenina Avenue, 634050 Tomsk, Russia
| | - Dmitriy Khrapov
- Physical Materials Science and Composite Materials Centre, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 30 Lenina Avenue, 634050 Tomsk, Russia
| | - Vladimir Rybakov
- International Research and Development Center "Piezo- and Magnetoelectric Materials", Research School of Chemistry and Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 30 Lenina Avenue, 634050 Tomsk, Russia
| | - Roman Surmenev
- Physical Materials Science and Composite Materials Centre, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 30 Lenina Avenue, 634050 Tomsk, Russia
| | - Andrey Koptyug
- Sports Tech Research Centre, Mid Sweden University, Akademigatan 1, SE 83125 Östersund, Sweden
| | - Alina Vladescu Dragomir
- Physical Materials Science and Composite Materials Centre, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 30 Lenina Avenue, 634050 Tomsk, Russia
- National Institute of Research and Development for Optoelectronics INOE 2000, 409 Atomistilor St., 77125 Magurele, Romania
| | - Cosmin Mihai Cotrut
- Faculty of Materials and Science Engineering, University Politehnica of Bucharest, 313, Spl. Independentei, 060042 Bucharest, Romania
| | - Alexander Tyurin
- Institute "Nanotechnology and Nanomaterials", G.R. Derzhavin Tambov State University, 33 Internationalnaya St., 392000 Tambov, Russia
| | - Irina Grubova
- Physical Materials Science and Composite Materials Centre, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 30 Lenina Avenue, 634050 Tomsk, Russia
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Li D, Dai D, Xiong G, Lan S, Zhang C. Composite Nanocoatings of Biomedical Magnesium Alloy Implants: Advantages, Mechanisms, and Design Strategies. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2300658. [PMID: 37097626 PMCID: PMC10288271 DOI: 10.1002/advs.202300658] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/25/2023] [Indexed: 06/19/2023]
Abstract
The rapid degradation of magnesium (Mg) alloy implants erodes mechanical performance and interfacial bioactivity, thereby limiting their clinical utility. Surface modification is among the solutions to improve corrosion resistance and bioefficacy of Mg alloys. Novel composite coatings that incorporate nanostructures create new opportunities for their expanded use. Particle size dominance and impermeability may increase corrosion resistance and thereby prolong implant service time. Nanoparticles with specific biological effects may be released into the peri-implant microenvironment during the degradation of coatings to promote healing. Composite nanocoatings provide nanoscale surfaces to promote cell adhesion and proliferation. Nanoparticles may activate cellular signaling pathways, while those with porous or core-shell structures may carry antibacterial or immunomodulatory drugs. Composite nanocoatings may promote vascular reendothelialization and osteogenesis, attenuate inflammation, and inhibit bacterial growth, thus increasing their applicability in complex clinical microenvironments such as those of atherosclerosis and open fractures. This review combines the physicochemical properties and biological efficiency of Mg-based alloy biomedical implants to summarize the advantages of composite nanocoatings, analyzes their mechanisms of action, and proposes design and construction strategies, with the purpose of providing a reference for promoting the clinical application of Mg alloy implants and to further the design of nanocoatings.
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Affiliation(s)
- Dan Li
- Stomatological HospitalSchool of StomatologySouthern Medical UniversityGuangzhou510280China
| | - Danni Dai
- Stomatological HospitalSchool of StomatologySouthern Medical UniversityGuangzhou510280China
| | - Gege Xiong
- Stomatological HospitalSchool of StomatologySouthern Medical UniversityGuangzhou510280China
| | - Shuquan Lan
- Stomatological HospitalSchool of StomatologySouthern Medical UniversityGuangzhou510280China
| | - Chao Zhang
- Stomatological HospitalSchool of StomatologySouthern Medical UniversityGuangzhou510280China
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3
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Safavi MS, Walsh FC, Visai L, Khalil-Allafi J. Progress in Niobium Oxide-Containing Coatings for Biomedical Applications: A Critical Review. ACS OMEGA 2022; 7:9088-9107. [PMID: 35356687 PMCID: PMC8944537 DOI: 10.1021/acsomega.2c00440] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 03/01/2022] [Indexed: 05/11/2023]
Abstract
Typically, pure niobium oxide coatings are deposited on metallic substrates, such as commercially pure Ti, Ti6Al4 V alloys, stainless steels, niobium, TiNb alloy, and Mg alloys using techniques such as sputter deposition, sol-gel deposition, anodizing, and wet plasma electrolytic oxidation. The relative advantages and limitations of these coating techniques are considered, with particular emphasis on biomedical applications. The properties of a wide range of pure and modified niobium oxide coatings are illustrated, including their thickness, morphology, microstructure, elemental composition, phase composition, surface roughness and hardness. The corrosion resistance, tribological characteristics and cell viability/proliferation of the coatings are illustrated using data from electrochemical, wear resistance and biological cell culture measurements. Critical R&D needs for the development of improved future niobium oxide coatings, in the laboratory and in practice, are highlighted.
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Affiliation(s)
- Mir Saman Safavi
- Research
Center for Advanced Materials, Faculty of Materials Engineering, Sahand University of Technology, 513351996 Tabriz, Iran
- Molecular
Medicine Department (DMM), Center for Health Technologies (CHT), UdR
INSTM, University of Pavia, Via Taramelli 3/B, 27100 Pavia, Italy
| | - F. C. Walsh
- Electrochemical
Engineering Laboratory & National Centre for Advanced Tribology,
Faculty of Engineering and the Environment, University of Southampton, Southampton SO17 1BJ, U.K.
| | - Livia Visai
- Molecular
Medicine Department (DMM), Center for Health Technologies (CHT), UdR
INSTM, University of Pavia, Via Taramelli 3/B, 27100 Pavia, Italy
- Medicina
Clinica-Specialistica, UOR5 Laboratorio di Nanotecnologie, ICS Maugeri, IRCCS, 27100 Pavia, Italy
| | - Jafar Khalil-Allafi
- Research
Center for Advanced Materials, Faculty of Materials Engineering, Sahand University of Technology, 513351996 Tabriz, Iran
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β-Ti Alloys for Orthopedic and Dental Applications: A Review of Progress on Improvement of Properties through Surface Modification. COATINGS 2021. [DOI: 10.3390/coatings11121446] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Ti and Ti alloys have charming comprehensive properties (high specific strength, strong corrosion resistance, and excellent biocompatibility) that make them the ideal choice in orthopedic and dental applications, especially in the particular fabrication of orthopedic and dental implants. However, these alloys present some shortcomings, specifically elastic modulus, wear, corrosion, and biological performance. Beta-titanium (β-Ti) alloys have been studied as low elastic modulus and low toxic or non-toxic elements. The present work summarizes the improvements of the properties systematically (elastic modulus, hardness, wear resistance, corrosion resistance, antibacterial property, and bone regeneration) for β-Ti alloys via surface modification to address these shortcomings. Additionally, the shortcomings and prospects of the present research are put forward. β-Ti alloys have potential regarding implants in biomedical fields.
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Bresciani G, Gemmiti M, Ciancaleoni G, Pampaloni G, Marchetti F, Crucianelli M. Niobium(V) oxido tris-carbamate as easily available and robust catalytic precursor for the selective sulfide to sulfone oxidation. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Torres-Sanchez C, Alabort E, Wang J, Norrito M, Conway PP. In-silico design and experimental validation of TiNbTaZrMoSn to assess accuracy of mechanical and biocompatibility predictive models. J Mech Behav Biomed Mater 2021; 124:104858. [PMID: 34607297 DOI: 10.1016/j.jmbbm.2021.104858] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 09/14/2021] [Accepted: 09/21/2021] [Indexed: 10/20/2022]
Abstract
Numerical design of TiNbTaZrMoSn alloy preceded its manufacture and mechanical, physico-chemical and in vitro characterisation. The specifications of the alloy required a multi-objective optimisation including lower modulus of elasticity than c.p.Ti, high strength, stabilised β crystal structure with a low martensitic start temperature, a narrow solidification range and high biocompatibility. The results reveal that there was a good match between the bulk mechanical properties exhibited by the alloy experimentally and those predicted. Regarding surface properties, independent of roughness effects, the oxide thickness and surface zeta-potential, measured in biologically relevant electrolytes and at physiological pH, arose as important factors in osteoblastic activity (i.e., cell proliferation, measured via DNA, protein and metabolite content, and differentiation, via ALP levels), but not in cell adhesion and viability. The thinner oxide layer and lower absolute value of surface zeta-potential on the TiNbTaZrMoSn alloy explain its lesser osteogenic properties (i.e., inhibition of ALP activity) compared to the c.p. Ti. This study demonstrates that the numerical models to predict microstructure and bulk mechanical properties of β-Ti alloys are robust, but that the prediction of cellular bioactivity lags behind and still requires parameterisation to account for features such as oxide layer composition and thickness, electro-chemical properties and surface charge, and topography to optimise cell response in silico before committing to the costly manufacture and deployment of these alloys in regenerative medicine.
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Affiliation(s)
- C Torres-Sanchez
- Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, LE11 3PE, UK.
| | - E Alabort
- Alloyed Ltd, Unit 15, Oxford Industrial Park, Yarnton, OX5 1QU, UK
| | - J Wang
- Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, LE11 3PE, UK
| | - M Norrito
- Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, LE11 3PE, UK
| | - P P Conway
- Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, LE11 3PE, UK
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Khimich MA, Prosolov KA, Mishurova T, Evsevleev S, Monforte X, Teuschl AH, Slezak P, Ibragimov EA, Saprykin AA, Kovalevskaya ZG, Dmitriev AI, Bruno G, Sharkeev YP. Advances in Laser Additive Manufacturing of Ti-Nb Alloys: From Nanostructured Powders to Bulk Objects. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1159. [PMID: 33946726 PMCID: PMC8145374 DOI: 10.3390/nano11051159] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 04/22/2021] [Accepted: 04/27/2021] [Indexed: 11/24/2022]
Abstract
The additive manufacturing of low elastic modulus alloys that have a certain level of porosity for biomedical needs is a growing area of research. Here, we show the results of manufacturing of porous and dense samples by a laser powder bed fusion (LPBF) of Ti-Nb alloy, using two distinctive fusion strategies. The nanostructured Ti-Nb alloy powders were produced by mechanical alloying and have a nanostructured state with nanosized grains up to 90 nm. The manufactured porous samples have pronounced open porosity and advanced roughness, contrary to dense samples with a relatively smooth surface profile. The structure of both types of samples after LPBF is formed by uniaxial grains having micro- and nanosized features. The inner structure of the porous samples is comprised of an open interconnected system of pores. The volume fraction of isolated porosity is 2 vol. % and the total porosity is 20 vol. %. Cell viability was assessed in vitro for 3 and 7 days using the MG63 cell line. With longer culture periods, cells showed an increased cell density over the entire surface of a porous Ti-Nb sample. Both types of samples are not cytotoxic and could be used for further in vivo studies.
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Affiliation(s)
- Margarita A. Khimich
- Laboratory of Nanobioengineering, Laboratory of Nanostructured Biocomposites, Laboratory of Computer-Aided Design of Materials, Institute of Strength Physics and Materials Science of SB RAS, 2/4, Akademicheskii pr., 634055 Tomsk, Russia; (M.A.K.); (K.A.P.); (Y.P.S.)
- Physics Technical Faculty, Tomsk Material Science Common Use Center, National Research Tomsk State University, 36, Lenina pr., 634050 Tomsk, Russia
| | - Konstantin A. Prosolov
- Laboratory of Nanobioengineering, Laboratory of Nanostructured Biocomposites, Laboratory of Computer-Aided Design of Materials, Institute of Strength Physics and Materials Science of SB RAS, 2/4, Akademicheskii pr., 634055 Tomsk, Russia; (M.A.K.); (K.A.P.); (Y.P.S.)
| | - Tatiana Mishurova
- Department of Non-Destructive Testing, Division 8.5 Micro NDE, Bundesanstalt für Materialforschung und -Prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany; (T.M.); (S.E.); (G.B.)
| | - Sergei Evsevleev
- Department of Non-Destructive Testing, Division 8.5 Micro NDE, Bundesanstalt für Materialforschung und -Prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany; (T.M.); (S.E.); (G.B.)
| | - Xavier Monforte
- Department of Life Science Engineering, University of Applied Sciences Technikum Wien, Höchstädtpl. 6, 1200 Vienna, Austria; (X.M.); (A.H.T.)
| | - Andreas H. Teuschl
- Department of Life Science Engineering, University of Applied Sciences Technikum Wien, Höchstädtpl. 6, 1200 Vienna, Austria; (X.M.); (A.H.T.)
| | - Paul Slezak
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, AUVA Research Center, Donaueschingenstraße 13, 1200 Vienna, Austria;
| | - Egor A. Ibragimov
- Material Science Department, Research School of Physics of High Energy Processes, National Research Tomsk Polytechnic University, Yurga Technical University TPU Affiliate, 30, Lenina pr., 634050 Tomsk, Russia; (E.A.I.); (A.A.S.); (Z.G.K.)
| | - Alexander A. Saprykin
- Material Science Department, Research School of Physics of High Energy Processes, National Research Tomsk Polytechnic University, Yurga Technical University TPU Affiliate, 30, Lenina pr., 634050 Tomsk, Russia; (E.A.I.); (A.A.S.); (Z.G.K.)
| | - Zhanna G. Kovalevskaya
- Material Science Department, Research School of Physics of High Energy Processes, National Research Tomsk Polytechnic University, Yurga Technical University TPU Affiliate, 30, Lenina pr., 634050 Tomsk, Russia; (E.A.I.); (A.A.S.); (Z.G.K.)
| | - Andrey I. Dmitriev
- Laboratory of Nanobioengineering, Laboratory of Nanostructured Biocomposites, Laboratory of Computer-Aided Design of Materials, Institute of Strength Physics and Materials Science of SB RAS, 2/4, Akademicheskii pr., 634055 Tomsk, Russia; (M.A.K.); (K.A.P.); (Y.P.S.)
| | - Giovanni Bruno
- Department of Non-Destructive Testing, Division 8.5 Micro NDE, Bundesanstalt für Materialforschung und -Prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany; (T.M.); (S.E.); (G.B.)
- Institute of Physics and Astronomy, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam, Germany
| | - Yurii P. Sharkeev
- Laboratory of Nanobioengineering, Laboratory of Nanostructured Biocomposites, Laboratory of Computer-Aided Design of Materials, Institute of Strength Physics and Materials Science of SB RAS, 2/4, Akademicheskii pr., 634055 Tomsk, Russia; (M.A.K.); (K.A.P.); (Y.P.S.)
- Material Science Department, Research School of Physics of High Energy Processes, National Research Tomsk Polytechnic University, Yurga Technical University TPU Affiliate, 30, Lenina pr., 634050 Tomsk, Russia; (E.A.I.); (A.A.S.); (Z.G.K.)
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Ge J, Wang F, Xu Z, Shen X, Gao C, Wang D, Hu G, Gu J, Tang T, Wei J. Influences of niobium pentoxide on roughness, hydrophilicity, surface energy and protein absorption, and cellular responses to PEEK based composites for orthopedic applications. J Mater Chem B 2021; 8:2618-2626. [PMID: 32129420 DOI: 10.1039/c9tb02456e] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
To improve the bio-performances of polyetheretherketone (PEEK) for orthopedic applications, submicro-particles of niobium pentoxide (Nb2O5) were synthesized using a sol-gel method, and PEEK/Nb2O5 composites (PNC) with a Nb2O5 content of 25v% (PNC25) and 50v% (PNC50) were fabricated by utilizing a process of pressing-sintering. The results showed that the Nb2O5 particles were not only dispersed in the composites but also exposed on the surface of the composites, which formed submicro-structural surfaces. In addition, the hydrophilicity, surface energy, surface roughness and absorption of proteins of the composites were improved with increasing Nb2O5 content. Moreover, the release of Nb ions with the highest concentration of 5.01 × 10-6 mol L-1 from the composite into the medium displayed no adverse effects on cell proliferation and morphology, indicating no cytotoxicity. Furthermore, compared with PEEK, the composites, especially PNC50, obviously stimulated adhesion and proliferation as well as osteogenic differentiation of bone mesenchymal stem cells of rats. The results suggested that the incorporation of Nb2O5 submicro-particles into PEEK produced novel bioactive composites with improved surface properties, which played important roles in regulating cell behaviors. In conclusion, the composites, especially PNC50 with good cytocompatibility and promotion of cellular responses, exhibited great potential as implantable materials for bone repair.
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Affiliation(s)
- Junpeng Ge
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China.
| | - Fan Wang
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China.
| | - Zhiyan Xu
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China.
| | - Xuening Shen
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China.
| | - Chao Gao
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China.
| | - Dongliang Wang
- Department of Orthopedic Surgery, Xin-Hua Hospital, Shanghai Jiao-Tong University School of Medicine, 1665 Kongjiang Road, Shanghai 200092, China.
| | - Gangfeng Hu
- The First People's Hospital of Xiaoshan District, 199 Shixinnan Road, Hangzhou 311200, Zhejiang, China
| | - Jinlou Gu
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China.
| | - Tingting Tang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiaotong University, School of Medicine, Shanghai 200011, China
| | - Jie Wei
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China.
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Herzer R, Gebert A, Hempel U, Hebenstreit F, Oswald S, Damm C, Schmidt OG, Medina-Sánchez M. Rolled-Up Metal Oxide Microscaffolds to Study Early Bone Formation at Single Cell Resolution. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2005527. [PMID: 33599055 DOI: 10.1002/smll.202005527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 01/11/2021] [Indexed: 06/12/2023]
Abstract
Titanium and its alloys are frequently used to replace structural components of the human body due to their high mechanical strength, low stiffness, and biocompatibility. In particular, the use of porous materials has improved implant stabilization and the promotion of bone. However, it remains unclear which material properties and geometrical cues are optimal for a proper osteoinduction and osseointegration. To that end, transparent tubular microscaffolds are fabricated, mimicking the typical pores of structural implants, with the aim of studying early bone formation and cell-material interactions at the single cell level. Here, a β-stabilized alloy Ti-45Nb (wt%) is used for the microscaffold's fabrication due to its elastic modulus close to that of natural bone. Human mesenchymal stem cell migration, adhesion, and osteogenic differentiation is thus investigated, paying particular attention to the CaP formation and cell-body crystallization, both analyzed via optical and electron microscopy. It is demonstrated that the developed platform is suited for the long-term study of living single cells in an appropriate microenvironment, obtaining in the process deeper insights on early bone formation and providing cues to improve the stability and biocompatibility of current structural implants.
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Affiliation(s)
- Raffael Herzer
- Institute for Integrative Nanosciences, Leibniz IFW Dresden e.V., Helmholtzstraße 20, Dresden, 01069, Germany
| | - Annett Gebert
- Institute for Complex Materials, Leibniz IFW Dresden e.V., Helmholtzstraße 20, Dresden, 01069, Germany
| | - Ute Hempel
- Institut für Physiologische Chemie, MTZ, Medizinische Fakultät der TU Dresden, Fiedlerstraße 42, Dresden, 01307, Germany
| | - Franziska Hebenstreit
- Institute for Integrative Nanosciences, Leibniz IFW Dresden e.V., Helmholtzstraße 20, Dresden, 01069, Germany
| | - Steffen Oswald
- Institute for Complex Materials, Leibniz IFW Dresden e.V., Helmholtzstraße 20, Dresden, 01069, Germany
| | - Christine Damm
- Institute for Metallic Materials, Leibniz IFW Dresden e.V., Helmholtzstraße 20, Dresden, 01069, Germany
| | - Oliver G Schmidt
- Institute for Integrative Nanosciences, Leibniz IFW Dresden e.V., Helmholtzstraße 20, Dresden, 01069, Germany
- School of Science, TU Dresden, Dresden, 01062, Germany
- Research Center for Materials, Architectures and Integration of Nanomembranes (MAIN), TU Chemnitz, Rosenbergstraße 6, Chemnitz, 09126, Germany
| | - Mariana Medina-Sánchez
- Institute for Integrative Nanosciences, Leibniz IFW Dresden e.V., Helmholtzstraße 20, Dresden, 01069, Germany
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Preliminary In Vitro Evaluation of Chitosan-Graphene Oxide Scaffolds on Osteoblastic Adhesion, Proliferation, and Early Differentiation. Int J Mol Sci 2020; 21:ijms21155202. [PMID: 32708043 PMCID: PMC7432284 DOI: 10.3390/ijms21155202] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 04/04/2020] [Accepted: 04/09/2020] [Indexed: 02/06/2023] Open
Abstract
An ideal scaffold should be biocompatible, having appropriate microstructure, excellent mechanical strength yet degrades. Chitosan exhibits most of these exceptional properties, but it is always associated with sub-optimal cytocompatibility. This study aimed to incorporate graphene oxide at wt % of 0, 2, 4, and 6 into chitosan matrix via direct blending of chitosan solution and graphene oxide, freezing, and freeze drying. Cell fixation, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide, alkaline phosphatase colorimetric assays were conducted to assess cell adhesion, proliferation, and early differentiation of MG63 on chitosan–graphene oxide scaffolds respectively. The presence of alkaline phosphatase, an early osteoblast differentiation marker, was further detected in chitosan–graphene oxide scaffolds using western blot. These results strongly supported that chitosan scaffolds loaded with graphene oxide at 2 wt % mediated cell adhesion, proliferation, and early differentiation due to the presence of oxygen-containing functional groups of graphene oxide. Therefore, chitosan scaffolds loaded with graphene oxide at 2 wt % showed the potential to be developed into functional bone scaffolds.
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11
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Zhao D, Han C, Li J, Liu J, Wei Q. In situ fabrication of a titanium-niobium alloy with tailored microstructures, enhanced mechanical properties and biocompatibility by using selective laser melting. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 111:110784. [DOI: 10.1016/j.msec.2020.110784] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Revised: 02/13/2020] [Accepted: 02/25/2020] [Indexed: 01/18/2023]
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12
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Sintering and biocompatibility of blended elemental Ti-xNb alloys. J Mech Behav Biomed Mater 2020; 104:103691. [DOI: 10.1016/j.jmbbm.2020.103691] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 02/07/2020] [Accepted: 02/08/2020] [Indexed: 12/13/2022]
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13
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Mishchenko O, Ovchynnykov O, Kapustian O, Pogorielov M. New Zr-Ti-Nb Alloy for Medical Application: Development, Chemical and Mechanical Properties, and Biocompatibility. MATERIALS 2020; 13:ma13061306. [PMID: 32183125 PMCID: PMC7142640 DOI: 10.3390/ma13061306] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 02/25/2020] [Accepted: 02/27/2020] [Indexed: 02/06/2023]
Abstract
The concept of mechanical biocompatibilities is considered an important factor for orthopedics and dental implants. The high Young modulus of traditional Ti-based alloys can lead to stress-shielding syndrome and late postoperative complications. The development of new Al- and V-free Ti alloys with a low elastic modulus is a critical task for implantology. Despite the relatively low Young modulus and appropriate biological response of metastable beta-Ti alloys, their production requires complex metallurgical solutions and a high final cost that limit commercial application. The current research aimed to develop a Zr-Ti-Nb system with a low Young modulus suitable for biomedical application, including orthopedics and dental implantology. Two different charges were used for new alloy production with melting in a vacuum-arc furnace VDP-1 under atmospheric control (argon + helium) with a non-consumable tungsten electrode and a water-cooled copper crystallizer. Post-treatment included a forging-rolling process to produce a bar suitable for implant production. SEM with EDX and the mechanical parameters of the new alloy were evaluated, and a cell culture experiment provided a biocompatibility assessment. The chemical composition of the new alloy can be represented as 59.57-19.02-21.41 mass% of Zr-Ti-Nb. The mechanical properties are characterized by an extremely low Young modulus—27,27 GPa for the alloy and 34.85 GPa for the bar. The different master alloys used for Zr-Ti-Nb production did not affect the chemical compound and mechanical parameters so it was possible to use affordable raw materials to decrease the final price of the new product. The cell culture experiment demonstrated a full biocompatibility, indicating that this new alloy can be used for dental and orthopedics implant production.
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Affiliation(s)
- Oleg Mishchenko
- NanoPrime, 25 Metalowcow Str., Dedice 39-200, Poland;
- Department of Surgical and Propaedeutic Dentistry, Zaporizhzhia State Medical University, 26, Prosp.Mayakovskogo, Zaporizhzhia 69035, Ukraine
| | - Oleksandr Ovchynnykov
- Department of Physics and Engineering, Zaporizhzhia Polytechnic National University, 64 Zhukovsky Str, Zaporizhzhia 69063, Ukraine; (O.O.); (O.K.)
| | - Oleksii Kapustian
- Department of Physics and Engineering, Zaporizhzhia Polytechnic National University, 64 Zhukovsky Str, Zaporizhzhia 69063, Ukraine; (O.O.); (O.K.)
| | - Maksym Pogorielov
- NanoPrime, 25 Metalowcow Str., Dedice 39-200, Poland;
- Centre of Collective Use of Scientific Equipment, Sumy State University, 2 R-Korsakova Str, Sumy 40007, Ukraine
- Correspondence: or ; Tel.: +38-066-900-5448
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14
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Abstract
Ti alloys have been intensely used for human implants due to its excellent characteristics, like bio-inertness, low density, and corrosion resistance. However, some alloying elements were found to be toxic for the human body, which restricts the use of some alloys. Furthermore, there are two additional and essential aspects to be considered. The first relates to the young modulus that, despite being lower than other alloys commonly used for this purpose, it is still far over from the human bone modulus. Such high modulus can result in the stress shield phenomena and the consequent implant losing. The second aspect relates to the fact that bio-inertness does not guarantee a complete tissue integration to the implant and, consequently, the expected implant performance. In this context, new low modulus b-Ti alloys containing nontoxic elements have been developed in recent years, and several surface modification processes have been proposed to promote better implant/tissue integration.In the present work, the new b-type Ti-Mo-Zr-Fe alloy has been submitted to a plasma enhanced chemical vapor deposition (PECVD) process in order to form a superficial titanium nitride layer, aiming to produce a satisfactory substrate for the tissue cells growing. In a first step, microstructural characterization and corrosion performance of the modified alloy surface has been evaluated by Electrochemical Impedance Spectrometry and Potentiodynamic testing, and the results compared to the unmodified alloy. It was found that during the plasma nitriding process, that runs at 550°C for 1h, the metastable b microstructure is partially converted into a’ and possibly a” phases, which can impact the young modulus. The 500nm thick TiN layer formed over the alloy surface improved the corrosion behavior of the alloy. These results encourage the continuity of the research, with the future in vitro bio-activity testing of the nitrided surface.
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15
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Jirka I, Kopová I, Kubát P, Tabor E, Bačáková L, Bouša M, Sajdl P. The Photodynamic Properties and the Genotoxicity of Heat-Treated Silicalite-1 Films. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E567. [PMID: 30769806 PMCID: PMC6416588 DOI: 10.3390/ma12040567] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 01/31/2019] [Accepted: 02/10/2019] [Indexed: 11/17/2022]
Abstract
We investigated the use of a supported silicalite-1 film (SF) as a promising coating for metallic materials used in the fabrication of prostheses. The role of carbonaceous residua present on high-temperature calcined-SF in generating singlet oxygen for future use as a sterilization method has also been addressed, and the potential genotoxicity of these residua in osteoblast-like cells has been investigated. Calcination of as-synthesized SF induced the appearance of a rather complicated mixture of aliphatic and aromatic species on its outer surface. A series of variously volatile polycyclic aromatic hydrocarbons (PAH), including naphthalene, fluorene, phenanthrene, anthracene, fluoranthene, and pyrene, were identified in micromole concentrations. Irradiation of these PAHs on calcined-SF immersed in air-saturated chloroform led to the formation of very low concentrations of singlet oxygen. However, an increased level of DNA damage was observed on calcined-SF by immunofluorescence staining of phosphorylated histone H2AX analyzed by flow cytometry.
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Affiliation(s)
- Ivan Jirka
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, v.v.i, Dolejškova 3, 182 23 Prague 8, Czech Republic.
| | - Ivana Kopová
- Institute of Physiology of the Czech Academy of Sciences, v.v.i., Vídeňská 1083, 142 20 Prague 4, Czech Republic.
| | - Pavel Kubát
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, v.v.i, Dolejškova 3, 182 23 Prague 8, Czech Republic.
| | - Edyta Tabor
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, v.v.i, Dolejškova 3, 182 23 Prague 8, Czech Republic.
| | - Lucie Bačáková
- Institute of Physiology of the Czech Academy of Sciences, v.v.i., Vídeňská 1083, 142 20 Prague 4, Czech Republic.
| | - Milan Bouša
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, v.v.i, Dolejškova 3, 182 23 Prague 8, Czech Republic.
| | - Petr Sajdl
- Power Engineering Department, University of Chemistry and Technology, Technická 3, 166 28 Prague 6, Czech Republic.
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16
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Lauria I, Kutz TN, Böke F, Rütten S, Zander D, Fischer H. Influence of nanoporous titanium niobium alloy surfaces produced via hydrogen peroxide oxidative etching on the osteogenic differentiation of human mesenchymal stromal cells. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 98:635-648. [PMID: 30813067 DOI: 10.1016/j.msec.2019.01.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 12/20/2018] [Accepted: 01/07/2019] [Indexed: 12/21/2022]
Abstract
Titanium niobium alloys exhibit a lower stiffness compared to Ti6Al4V, the 'gold standard' for load-bearing bone implants. Thus, the critical mismatch in stiffness between the implant and adjacent bone tissue could be addressed with TiNb alloys and thereby reduce stress shielding, which can result in bone resorption and subsequent implant loosening; however, the cellular response on the specific material is crucial for sufficient osseointegration. We therefore hypothesize that the response of human mesenchymal stromal cells (hMSC) and osteoblast-like cells on Ti45Nb surfaces can be improved by a novel nanoporous surface structure. For this purpose, an etching technique using hydrogen peroxide electrolyte solution was applied to Ti45Nb. The treated surfaces were characterized using SEM, LSM, AFM, nanoindentation, and contact angle measurements. Cell culture experiments using hMCS and MG-63 were conducted. The H2O2 treatment resulted in surface nanopores, an increase in surface wettability and a reduction in surface hardness. The proliferation of MG-63 was enhanced on TiNb45 compared to Ti6Al4V. MG-63 focal adhesion complexes were detected on all Ti45Nb surfaces, whereas the nanostructures notably increased the cell area and decreased cell solidity, indicating stimulated cell spreading and pseudopodia formation. Alizarin red stainings indicated that the nanoporous surfaces stimulated the osteogenic differentiation of hMSC. It can be concluded that the proposed surface treatment could potentially help to stimulate the osseointegration behaviour of the advantageous low stiff Ti45Nb alloy.
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Affiliation(s)
- Ines Lauria
- Department of Dental Materials and Biomaterials Research, RWTH Aachen University Hospital, Pauwelsstrasse 30, 52074 Aachen, Germany.
| | - Tatiana Nicole Kutz
- Chair of Corrosion and Corrosion Protection, Foundry Institute, RWTH Aachen University, Intzestrasse 5, 52072 Aachen, Germany.
| | - Frederik Böke
- Department of Dental Materials and Biomaterials Research, RWTH Aachen University Hospital, Pauwelsstrasse 30, 52074 Aachen, Germany.
| | - Stephan Rütten
- Electron Microscopy Facility, Institute of Pathology, RWTH Aachen University Hospital, Pauwelsstrasse 30, 52074 Aachen, Germany.
| | - Daniela Zander
- Chair of Corrosion and Corrosion Protection, Foundry Institute, RWTH Aachen University, Intzestrasse 5, 52072 Aachen, Germany.
| | - Horst Fischer
- Department of Dental Materials and Biomaterials Research, RWTH Aachen University Hospital, Pauwelsstrasse 30, 52074 Aachen, Germany.
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Bartalucci N, Marchetti F, Zacchini S, Pampaloni G. Decarbonylation of phenylacetic acids by high valent transition metal halides. Dalton Trans 2019; 48:5725-5734. [DOI: 10.1039/c9dt00551j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The unusual decarbonylation of α-phenyl carboxylic acids with suitable substituents is a general reaction promoted at room temperature by homoleptic halides of high valent transition metals.
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Affiliation(s)
- Niccolò Bartalucci
- Dipartimento di Chimica e Chimica Industriale
- Università di Pisa
- I-56124 Pisa
- Italy
| | - Fabio Marchetti
- Dipartimento di Chimica e Chimica Industriale
- Università di Pisa
- I-56124 Pisa
- Italy
| | - Stefano Zacchini
- Dipartimento di Chimica Industriale “Toso Montanari”
- Università di Bologna
- I-40136 Bologna
- Italy
| | - Guido Pampaloni
- Dipartimento di Chimica e Chimica Industriale
- Università di Pisa
- I-56124 Pisa
- Italy
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18
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Synthesis of new coordination complexes of MF5 (M = Nb, Ta), and insights into the Ta(V) reduction. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.06.040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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19
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Bartalucci N, Biancalana L, Bortoluzzi M, Pampaloni G, Giordano L, Zacchini S, Marchetti F. Cascade Reactions of α-Phenylcinnamic Acid to Polycyclic Compounds Promoted by High Valent Transition Metal Halides. ChemistrySelect 2018. [DOI: 10.1002/slct.201801865] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Niccolò Bartalucci
- Università di Pisa; Dipartimento di Chimica e Chimica Industriale, Via Moruzzi 13; I-56124 Pisa
- CIRCC; via Celso Ulpiani 27; I-70126 Bari Italy
| | - Lorenzo Biancalana
- Università di Pisa; Dipartimento di Chimica e Chimica Industriale, Via Moruzzi 13; I-56124 Pisa
- CIRCC; via Celso Ulpiani 27; I-70126 Bari Italy
| | - Marco Bortoluzzi
- CIRCC; via Celso Ulpiani 27; I-70126 Bari Italy
- Università Ca' Foscari Venezia; Dipartimento di Scienze Molecolari e Nanosistemi, Via Torino 155; I-30170 Mestre (VE) Italy
| | - Guido Pampaloni
- Università di Pisa; Dipartimento di Chimica e Chimica Industriale, Via Moruzzi 13; I-56124 Pisa
- CIRCC; via Celso Ulpiani 27; I-70126 Bari Italy
| | - Luca Giordano
- Università di Pisa; Dipartimento di Chimica e Chimica Industriale, Via Moruzzi 13; I-56124 Pisa
| | - Stefano Zacchini
- CIRCC; via Celso Ulpiani 27; I-70126 Bari Italy
- Università di Bologna; Dipartimento di Chimica Industriale “Toso Montanari”, Viale Risorgimento 4; I-40136 Bologna Italy
| | - Fabio Marchetti
- Università di Pisa; Dipartimento di Chimica e Chimica Industriale, Via Moruzzi 13; I-56124 Pisa
- CIRCC; via Celso Ulpiani 27; I-70126 Bari Italy
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20
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Krčil J, Rafaj Z, Mára V, Krum S, Starý V, Nehasil V, Sobotová J. The analysis of thermal and anodic oxide layers on selected biocompatible titanium alloys. SURF INTERFACE ANAL 2018. [DOI: 10.1002/sia.6466] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jan Krčil
- Department of Materials Engineering, Faculty of Mechanical Engineering; Czech Technical University in Prague; Karlovo náměstí 13 Prague 2 121 35 Czech Republic
| | - Zdeněk Rafaj
- Department of Surface and Plasma Science, Faculty of Mathematics and Physics; Charles University; V Holešovičkách 747/2 Prague 8 180 00 Czech Republic
| | - Vladimír Mára
- Department of Materials Engineering, Faculty of Mechanical Engineering; Czech Technical University in Prague; Karlovo náměstí 13 Prague 2 121 35 Czech Republic
| | - Stanislav Krum
- Department of Materials Engineering, Faculty of Mechanical Engineering; Czech Technical University in Prague; Karlovo náměstí 13 Prague 2 121 35 Czech Republic
| | - Vladimír Starý
- Department of Materials Engineering, Faculty of Mechanical Engineering; Czech Technical University in Prague; Karlovo náměstí 13 Prague 2 121 35 Czech Republic
| | - Václav Nehasil
- Department of Surface and Plasma Science, Faculty of Mathematics and Physics; Charles University; V Holešovičkách 747/2 Prague 8 180 00 Czech Republic
| | - Jana Sobotová
- Department of Materials Engineering, Faculty of Mechanical Engineering; Czech Technical University in Prague; Karlovo náměstí 13 Prague 2 121 35 Czech Republic
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21
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Douglas TE, Dziadek M, Gorodzha S, Lišková J, Brackman G, Vanhoorne V, Vervaet C, Balcaen L, del Rosario Florez Garcia M, Boccaccini AR, Weinhardt V, Baumbach T, Vanhaecke F, Coenye T, Bačáková L, Surmeneva MA, Surmenev RA, Cholewa-Kowalska K, Skirtach AG. Novel injectable gellan gum hydrogel composites incorporating Zn- and Sr-enriched bioactive glass microparticles: High-resolution X-ray microcomputed tomography, antibacterial and in vitro testing. J Tissue Eng Regen Med 2018; 12:1313-1326. [DOI: 10.1002/term.2654] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 10/31/2017] [Accepted: 02/17/2018] [Indexed: 01/08/2023]
Affiliation(s)
- Timothy E.L. Douglas
- Department of Molecular Biotechology; Ghent University; Ghent Belgium
- Engineering Department; Lancaster University; Lancaster UK
- Materials Science Institute (MSI); Lancaster University; Lancaster UK
| | - Michal Dziadek
- Department of Glass Technology and Amorphous Coatings; AGH University of Science and Technology; Krakow Poland
| | - Svetlana Gorodzha
- Department of Theoretical and Experimental Physics; National Research Tomsk Polytechnic University; Tomsk Russia
| | - Jana Lišková
- Department of Biomaterials and Tissue Engineering; Institute of Physiology of the Czech Academy of Sciences; Prague Czech Republic
| | - Gilles Brackman
- Laboratory of Pharmaceutical Microbiology, Department of Pharmaceutical Analysis, Faculty of Pharmaceutical Sciences; Ghent University; Ghent Belgium
| | - Valérie Vanhoorne
- Laboratory of Pharmaceutical Technology, Department of Pharmaceutics, Faculty of Pharmaceutical Sciences; Ghent University; Ghent Belgium
| | - Chris Vervaet
- Laboratory of Pharmaceutical Technology, Department of Pharmaceutics, Faculty of Pharmaceutical Sciences; Ghent University; Ghent Belgium
| | - Lieve Balcaen
- Department of Analytical Chemistry; Ghent University; Ghent Belgium
| | | | - Aldo R. Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering; University of Erlangen-Nuremberg; Erlangen Germany
| | - Venera Weinhardt
- Centre for Organismal Studies; University of Heidelberg; Heidelberg Germany
- Laboratory for Applications of Synchrotron Radiation and Institute for Photon Science and Synchrotron Radiation; Karlsruhe Institute of Technology; Karlsruhe Germany
| | - Tilo Baumbach
- Laboratory for Applications of Synchrotron Radiation and Institute for Photon Science and Synchrotron Radiation; Karlsruhe Institute of Technology; Karlsruhe Germany
| | - Frank Vanhaecke
- Department of Analytical Chemistry; Ghent University; Ghent Belgium
| | - Tom Coenye
- Laboratory of Pharmaceutical Microbiology, Department of Pharmaceutical Analysis, Faculty of Pharmaceutical Sciences; Ghent University; Ghent Belgium
| | - Lucie Bačáková
- Department of Biomaterials and Tissue Engineering; Institute of Physiology of the Czech Academy of Sciences; Prague Czech Republic
| | - Maria A. Surmeneva
- Department of Theoretical and Experimental Physics; National Research Tomsk Polytechnic University; Tomsk Russia
| | - Roman A. Surmenev
- Department of Theoretical and Experimental Physics; National Research Tomsk Polytechnic University; Tomsk Russia
| | - Katarzyna Cholewa-Kowalska
- Department of Glass Technology and Amorphous Coatings; AGH University of Science and Technology; Krakow Poland
| | - Andre G. Skirtach
- Department of Molecular Biotechology; Ghent University; Ghent Belgium
- Centre for Nano- and Biophotonics; Ghent University; Ghent Belgium
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Jelínek M, Buixaderas E, Drahokoupil J, Kocourek T, Remsa J, Vaněk P, Vandrovcová M, Doubková M, Bačáková L. Laser-synthesized nanocrystalline, ferroelectric, bioactive BaTiO 3/Pt/FS for bone implants. J Biomater Appl 2018; 32:1464-1475. [PMID: 29621929 DOI: 10.1177/0885328218768646] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The goal of our study is to design BaTiO3 ferroelectric layers that will cover metal implants and provide improved osseointegration. We synthesized ferroelectric BaTiO3 layers on Pt/fused silica substrates, and we studied their physical and bio-properties. BaTiO3 and Pt layers were prepared using KrF excimer laser ablation at substrate temperature Ts in the range from 200°C to 750°C in vacuum or under oxygen pressure of 10 Pa, 15 Pa, and 20 Pa. The BaTiO3/Pt and Pt layers adhered well to the substrates. BaTiO3 films of crystallite size 60-140 nm were fabricated. Ferroelectric loops were measured and ferroelectricity was also confirmed using Raman scattering measurements. Results of atomic force microscopy topology and the X-ray diffraction structure of the BaTiO3/Pt/fused silica multilayers are presented. The adhesion, viability, growth, and osteogenic differentiation of human osteoblast-like Saos-2 cells were also studied. On days 1, 3, and 7 after seeding, the lowest cell numbers were found on non-ferroelectric BaTiO3, while the values on ferroelectric BaTiO3, on non-annealed and annealed Pt interlayers, and on the control tissue culture polystyrene dishes and microscopic glass slides were similar, and were usually significantly higher than on non-ferroelectric BaTiO3. A similar trend was observed for the intensity of the fluorescence of alkaline phosphatase, a medium-term marker of osteogenic differentiation, and of osteocalcin, a late marker of osteogenic differentiation. At the same time, the cell viability, tested on day 1 after seeding, was very high on all tested samples, reaching 93-99%. Ferroelectric BaTiO3 films deposited on metallic bone implants through a Pt interlayer can therefore markedly improve the osseointegration of these implants in comparison with non-ferroelectric BaTiO3 films.
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Affiliation(s)
- Miroslav Jelínek
- 1 Institute of Physics of the Czech Academy of Sciences, Prague 8, Czech Republic.,2 Czech Technical University in Prague, Faculty of Biomedical Engineering, Kladno, Czech Republic
| | - Elena Buixaderas
- 1 Institute of Physics of the Czech Academy of Sciences, Prague 8, Czech Republic
| | - Jan Drahokoupil
- 1 Institute of Physics of the Czech Academy of Sciences, Prague 8, Czech Republic
| | - Tomáš Kocourek
- 1 Institute of Physics of the Czech Academy of Sciences, Prague 8, Czech Republic.,2 Czech Technical University in Prague, Faculty of Biomedical Engineering, Kladno, Czech Republic
| | - Jan Remsa
- 1 Institute of Physics of the Czech Academy of Sciences, Prague 8, Czech Republic.,2 Czech Technical University in Prague, Faculty of Biomedical Engineering, Kladno, Czech Republic
| | - Přemysl Vaněk
- 1 Institute of Physics of the Czech Academy of Sciences, Prague 8, Czech Republic
| | - Marta Vandrovcová
- 3 Institute of Physiology of the Czech Academy of Sciences, Prague 4, Czech Republic
| | - Martina Doubková
- 3 Institute of Physiology of the Czech Academy of Sciences, Prague 4, Czech Republic
| | - Lucie Bačáková
- 3 Institute of Physiology of the Czech Academy of Sciences, Prague 4, Czech Republic
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23
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Tolde Z, Starý V, Cvrček L, Vandrovcová M, Remsa J, Daniš S, Krčil J, Bačáková L, Špatenka P. Growth of a TiNb adhesion interlayer for bioactive coatings. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 80:652-658. [PMID: 28866212 DOI: 10.1016/j.msec.2017.07.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 06/06/2017] [Accepted: 07/10/2017] [Indexed: 11/19/2022]
Abstract
Surface bioactivity has been under intensive study with reference to its use in medical implants. Our study is focused on coatings prepared from an electroactive material which can support bone cell adhesion. Until now, hydroxyapatite films have usually been utilized as a chemically-active surface agent. However, electrically-active films could set a new direction in hard tissue replacement. As a base for these films, it is necessary to prepare an intermediate film, which can serve as a suitable barrier against the possible diffusion of some allergens and toxic elements from the substrate. The intermediate film also improves the adaptation of the mechanical properties of the basic material to an electroactive film. The aim of our work was to select an implantable and biocompatible material for this intermediate film that is suitable for coating several widely-used materials, to check the possibility of preparing an electroactive film for use on a material of this type, and to characterize the structure and several mechanical properties of this intermediate film. TiNb was selected as the material for the intermediate film, because of its excellent chemical and mechanical properties. TiNb coatings were deposited by magnetron sputtering on various substrates, namely Ti, Ti6Al4V, stainless steel, and bulk TiNb (as standard), and important properties of the layers, e.g. surface morphology and surface roughness, crystalline structure, etc., were characterized by several methods (SEM, EBSD, X-ray diffraction, nanoindentation and roughness measurement). It was found that the structure and the mechanical properties of the TiNb layer depended significantly on the type of substrate. TiNb was then used as a substrate for depositing a ferroelectrically active material, e.g., BaTiO3, and the adhesion, viability and proliferation of human osteoblast-like Saos-2 cells on this system were studied. We found that the electroactive BaTiO3 film was not only non-cytotoxic (i.e. it did not affect the cell viability). It also enhanced the growth of Saos-2 cells in comparison with pure TiNb and with standard tissue culture polystyrene wells, and also in comparison with BaTiO3 films deposited on Ti, i.e. a material clinically used for implantation into the bone.
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Affiliation(s)
- Zdeněk Tolde
- Dept. of Materials Engineering, Faculty of Mechanical Engineering, Czech Technical University in Prague, Karlovo Sq. 13, 121 35 Prague 2, Czech Republic
| | - Vladimír Starý
- Dept. of Materials Engineering, Faculty of Mechanical Engineering, Czech Technical University in Prague, Karlovo Sq. 13, 121 35 Prague 2, Czech Republic.
| | - Ladislav Cvrček
- Dept. of Materials Engineering, Faculty of Mechanical Engineering, Czech Technical University in Prague, Karlovo Sq. 13, 121 35 Prague 2, Czech Republic
| | - Marta Vandrovcová
- Dept. of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, Prague 4-Krc, Czech Republic
| | - Jan Remsa
- Faculty of Biomedical Engineering, Czech Technical University in Prague, Sitna Sq. 3108, 21201 Kladno, Czech Republic
| | - Stanislav Daniš
- Dept. of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University in Prague, Ke Karlovu 5, 121 16 Prague 2, Czech Republic
| | - Jan Krčil
- Dept. of Materials Engineering, Faculty of Mechanical Engineering, Czech Technical University in Prague, Karlovo Sq. 13, 121 35 Prague 2, Czech Republic
| | - Lucie Bačáková
- Dept. of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, Prague 4-Krc, Czech Republic
| | - Petr Špatenka
- Dept. of Materials Engineering, Faculty of Mechanical Engineering, Czech Technical University in Prague, Karlovo Sq. 13, 121 35 Prague 2, Czech Republic
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24
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Pilz S, Gebert A, Voss A, Oswald S, Göttlicher M, Hempel U, Eckert J, Rohnke M, Janek J, Calin M. Metal release and cell biological compatibility of beta-type Ti-40Nb containing indium. J Biomed Mater Res B Appl Biomater 2017; 106:1686-1697. [PMID: 28842963 DOI: 10.1002/jbm.b.33976] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 07/07/2017] [Accepted: 07/29/2017] [Indexed: 12/19/2022]
Abstract
Small indium (In) additions up to 5 wt % to the beta-type Ti-40Nb alloy effectively improve its mechanical biofunctionality. The impact on its biocompatibility is addressed in this work. Comparative electrochemical polarization studies and inductively coupled plasma optical emission spectrometry analyses were conducted in Tris-buffered saline (on the basis of 150 mM NaCl) with pH 7.6 and 2.0 at 310 ± 1 K with Ti-6Al-4V as reference. The metal ion releases from beta-type alloys were generally very low, for example, those of In3+ ions from (Ti-40Nb)-4In specimens were below 6 × 10-7 mmol/cm2 . X-ray photoelectron spectroscopy revealed the passivation mainly by Ti- and Nb-oxides with traces of In-oxides as the dominating surface process. In vitro studies demonstrate a better human bone marrow stromal cells (hBMSC) activity on the beta-type alloys in comparison to CP-Ti (grade 2), which is mainly due to their high Nb content. At 24 h after seeding on (Ti-40Nb)-4In the metabolic activity of hBMSC was 1.5-fold higher and after 11 days, the tissue non-specific alkaline phosphatase activity was 1.8-fold higher relative to values for CP-Ti. Surface treatments, like chemical etching or plasma oxidation, change the surface topography and the thickness and composition of the oxide layers, but they are not effective in further improving the cell response. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 1686-1697, 2018.
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Affiliation(s)
- Stefan Pilz
- Institute for Complex Materials, IFW Dresden, 01069 Dresden, Germany.,Institute of Materials Science, TU Dresden, 01062 Dresden, Germany
| | - Annett Gebert
- Institute for Complex Materials, IFW Dresden, 01069 Dresden, Germany
| | - Andrea Voss
- Institute for Complex Materials, IFW Dresden, 01069 Dresden, Germany
| | - Steffen Oswald
- Institute for Complex Materials, IFW Dresden, 01069 Dresden, Germany
| | - Markus Göttlicher
- Institute of Physical Chemistry, Justus-Liebig-University of Giessen, 35392 Giessen, Germany
| | - Ute Hempel
- Carl Gustav Carus Faculty of Medicine, Institute of Physiological Chemistry, TU Dresden, 01307 Dresden, Germany
| | - Jürgen Eckert
- Institute for Complex Materials, IFW Dresden, 01069 Dresden, Germany
| | - Marcus Rohnke
- Institute of Physical Chemistry, Justus-Liebig-University of Giessen, 35392 Giessen, Germany
| | - Jürgen Janek
- Institute of Physical Chemistry, Justus-Liebig-University of Giessen, 35392 Giessen, Germany
| | - Mariana Calin
- Institute for Complex Materials, IFW Dresden, 01069 Dresden, Germany
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Blanquer A, Musilkova J, Barrios L, Ibáñez E, Vandrovcova M, Pellicer E, Sort J, Bacakova L, Nogués C. Cytocompatibility assessment of Ti-Zr-Pd-Si-(Nb) alloys with low Young's modulus, increased hardness, and enhanced osteoblast differentiation for biomedical applications. J Biomed Mater Res B Appl Biomater 2017; 106:834-842. [PMID: 28390183 DOI: 10.1002/jbm.b.33892] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 03/09/2017] [Accepted: 03/24/2017] [Indexed: 12/11/2022]
Abstract
Ti-based alloys have increased importance for biomedical applications due to their excellent properties. In particular, the two recently developed TiZrPdSi(Nb) alloys, with a predominant β-Ti phase microstructure, have good mechanical properties, such as a relatively low Young's modulus and high hardness. In the present work, the cytocompatibility of these alloys was assessed using human osteoblast-like Saos-2 cells. Cells grown on the alloys showed larger spreading areas (more than twice) and higher vinculin content (nearly 40% increment) when compared with cells grown on glass control surfaces, indicating a better cell adhesion. Moreover, cell proliferation was 18% higher for cells growing on both alloys than for cells growing on glass and polystyrene control surfaces. Osteogenic differentiation was evaluated by quantifying the expression of four osteogenic genes (osteonectin, osteocalcin, osteopontin, and bone sialoprotein), the presence of three osteogenic proteins (alkaline phosphatase, collagen I, and osteocalcin) and the activity of alkaline phosphatase at different time-points. The results demonstrated that TiZrPdSi and TiZrPdSiNb alloys enhance osteoblast differentiation, and that cells grown on TiZrPdSiNb alloy present higher levels of some late osteogenic markers during the first week in culture. These results suggest that the TiZrPdSi(Nb) alloys can be considered as excellent candidates for orthopaedical uses. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 834-842, 2018.
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Affiliation(s)
- Andreu Blanquer
- Departament de Biologia Cel·lular, Fisiologia i Immunologia, Universitat Autònoma de Barcelona, E-08193, Bellaterra, Spain
| | - Jana Musilkova
- Department of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, 14220 Prague 4, Czech Republic
| | - Leonardo Barrios
- Departament de Biologia Cel·lular, Fisiologia i Immunologia, Universitat Autònoma de Barcelona, E-08193, Bellaterra, Spain
| | - Elena Ibáñez
- Departament de Biologia Cel·lular, Fisiologia i Immunologia, Universitat Autònoma de Barcelona, E-08193, Bellaterra, Spain
| | - Marta Vandrovcova
- Department of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, 14220 Prague 4, Czech Republic
| | - Eva Pellicer
- Departament de Física, Universitat Autònoma de Barcelona, E-08193, Bellaterra, Spain
| | - Jordi Sort
- Institució Catalana de Recerca i Estudis Avançats (ICREA) and Departament de Física, Universitat Autònoma de Barcelona, E-08193, Bellaterra, Spain
| | - Lucie Bacakova
- Department of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, 14220 Prague 4, Czech Republic
| | - Carme Nogués
- Departament de Biologia Cel·lular, Fisiologia i Immunologia, Universitat Autònoma de Barcelona, E-08193, Bellaterra, Spain
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26
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Markhoff J, Weinmann M, Schulze C, Bader R. Influence of different grained powders and pellets made of Niobium and Ti-42Nb on human cell viability. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 73:756-766. [PMID: 28183670 DOI: 10.1016/j.msec.2016.12.098] [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: 08/16/2016] [Revised: 12/15/2016] [Accepted: 12/20/2016] [Indexed: 12/29/2022]
Abstract
Nowadays, biomaterials can be used to maintain or replace several functions of the human body if necessary. Titanium and its alloys, i.e. Ti6Al4V are the most common materials (70 to 80%) used for structural orthopedic implants due to their unique combination of good mechanical properties, corrosion resistance and biocompatibility. Addition of β-stabilizers, e.g. niobium, can improve the mechanical properties of such titanium alloys further, simultaneously offering excellent biocompatibility. In this in vitro study, human osteoblasts and fibroblasts were cultured on different niobium specimens (Nb Amperit, Nb Ampertec), Nb sheets and Ti-42Nb (sintered and 3D-printed by selective laser melting, SLM) and compared with forged Ti6Al4V specimens. Furthermore, human osteoblasts were incubated with particulates of the Nb and Ti-42Nb specimens in three concentrations over four and seven days to imitate influence of wear debris. Thereby, the specimens with the roughest surfaces, i.e. Ti-42Nb and Nb Ampertec, revealed excellent and similar results for both cell types concerning cell viability and collagen synthesis superior to forged Ti6Al4V. Examinations with particulate debris disclosed a dose-dependent influence of all powders with Nb Ampertec showing the highest decrease of cell viability and collagen synthesis. Furthermore, interleukin synthesis was only slightly increased for all powders. In summary, Nb Ampertec (sintered Nb) and Ti-42Nb materials seem to be promising alternatives for medical applications compared to common materials like forged or melted Ti6Al4V.
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Affiliation(s)
- Jana Markhoff
- University Medicine Rostock, Department of Orthopedics, Biomechanics and Implant Technology Laboratory, Doberaner Strasse 142, 18057 Rostock, Germany.
| | - Markus Weinmann
- H.C. Starck Tantalum and Niobium GmbH, Im Schleeke 78-91, 38642 Goslar, Germany
| | - Christian Schulze
- University Medicine Rostock, Department of Orthopedics, Biomechanics and Implant Technology Laboratory, Doberaner Strasse 142, 18057 Rostock, Germany
| | - Rainer Bader
- University Medicine Rostock, Department of Orthopedics, Biomechanics and Implant Technology Laboratory, Doberaner Strasse 142, 18057 Rostock, Germany
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Jelínek M, Vaněk P, Tolde Z, Buixaderas E, Kocourek T, Studnička V, Drahokoupil J, Petzelt J, Remsa J, Tyunina M. PLD prepared bioactive BaTiO 3 films on TiNb implants. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 70:334-339. [PMID: 27770900 DOI: 10.1016/j.msec.2016.08.072] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 07/27/2016] [Accepted: 08/27/2016] [Indexed: 11/18/2022]
Abstract
BaTiO3 (BTO) layers were deposited by pulsed laser deposition (PLD) on TiNb, Pt/TiNb, Si (100), and fused silica substrates using various deposition conditions. Polycrystalline BTO with sizes of crystallites in the range from 90nm to 160nm was obtained at elevated substrate temperatures of (600°C-700°C). With increasing deposition temperature above 700°C the formation of unwanted rutile phase prevented the growth of perovskite ferroelectric BTO. Concurrently, with decreasing substrate temperature below 500°C, amorphous films were formed. Post-deposition annealing of the amorphous deposits allowed obtaining perovskite BTO. Using a very thin Pt interlayer between the BTO films and TiNb substrate enabled high-temperature growth of preferentially oriented BTO. Raman spectroscopy and electrical characterization indicated polar ferroelectric behaviour of the BTO films.
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Affiliation(s)
- Miroslav Jelínek
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic; Czech Technical University in Prague, Faculty of Biomedical Engineering, nam. Sitna 3108, 212 01 Kladno, Czech Republic
| | - Přemysl Vaněk
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic
| | - Zdeněk Tolde
- Department of Materials Engineering, Faculty of Mechanical Engineering, Czech Technical University in Prague, Karlovo náměstí 13, 121 35 Prague 2, Czech Republic
| | - Elena Buixaderas
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic
| | - Tomáš Kocourek
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic; Czech Technical University in Prague, Faculty of Biomedical Engineering, nam. Sitna 3108, 212 01 Kladno, Czech Republic
| | - Václav Studnička
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic
| | - Jan Drahokoupil
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic
| | - Jan Petzelt
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic
| | - Jan Remsa
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic; Czech Technical University in Prague, Faculty of Biomedical Engineering, nam. Sitna 3108, 212 01 Kladno, Czech Republic
| | - Marina Tyunina
- Microelectronics Research Unit, Faculty of Information Technology and Electrical Engineering, University of Oulu, Finland; Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic
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28
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Slepicka P, Kasalkova NS, Siegel J, Kolska Z, Bacakova L, Svorcik V. Nano-structured and functionalized surfaces for cytocompatibility improvement and bactericidal action. Biotechnol Adv 2015; 33:1120-9. [DOI: 10.1016/j.biotechadv.2015.01.001] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 12/12/2014] [Accepted: 01/07/2015] [Indexed: 12/17/2022]
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29
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Bortoluzzi M, Hayatifar M, Marchetti F, Pampaloni G, Zacchini S. Synthesis of α-amino acidato derivatives of niobium and tantalum pentahalides and their conversion into iminium salts. Inorg Chem 2015; 54:4047-55. [PMID: 25844933 DOI: 10.1021/acs.inorgchem.5b00286] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Dinuclear complexes of formula Nb2Cl9[O2CCH(R)NR'R″2-κO,κO] (R = CH2CHMe2, R' = R″ = H, 1a; R = CH2Ph, R' = R″ = H, 1b; R = CH2CH2SCH3, R' = R″ = H, 1c; R = R' = H, R″ = Me, 1d; R = CH2Ph, R' = R″ = Me, 1e; Nb2Cl9[O2C⌈CH(CH2)3NH⌉], 1f) were prepared by allowing NbCl5 to react in dichloromethane with the appropriate α-amino acid in 1:2 amino acid/Nb molar ratio. The 1:1 reactions between MX5 (M = Nb, Ta; X = Cl, Br) and a series of α-amino acids resulted in the formation of the iminium salts [(R)CH═NR'R″2][MX6] (R = CH2Ph, R' = R″ = Me: M = Nb, X = Cl, 2a; M = Nb, X = Br, 2b; M = Ta, X = Cl, 2c; M = Ta, X = Br, 2d; R = CH2Ph, R' = R″ = H, M = Nb: X = Cl, 3a; X = Br, 3b; R = CH2CHMe2, R' = R″ = H, M = Nb, X = Cl, 4; R = R' = H, R″ = Me, M = Nb, X = Cl, 5). The formate/amino acidate derivative NbCl3(O2CH)[O2CCH(CH2Ph)NMe2], 6, was isolated and identified as coproduct of the 1:1 reaction between NbCl5 and N,N-dimethyl-l-phenylalanine, leading to 2a. All of the compounds were characterized by analytical and spectroscopic methods and by X-ray diffractometry in the cases of 2a, 2b, and 2d. Moreover, density functional theory studies were carried out to shed light on mechanistic and structural aspects.
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Affiliation(s)
- Marco Bortoluzzi
- †Dipartimento di Scienze Molecolari e Nanosistemi, Ca' Foscari Università di Venezia, Dorsoduro 2137, 30123 Venezia, Italy
| | - Mohammad Hayatifar
- §Dipartimento di Chimica Industriale "Toso Montanari", Università di Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy
| | - Fabio Marchetti
- ‡Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via G. Moruzzi 3, I-56124 Pisa, Italy
| | - Guido Pampaloni
- ‡Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via G. Moruzzi 3, I-56124 Pisa, Italy
| | - Stefano Zacchini
- §Dipartimento di Chimica Industriale "Toso Montanari", Università di Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy
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30
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Growth and potential damage of human bone-derived cells cultured on fresh and aged C60/Ti films. PLoS One 2015; 10:e0123680. [PMID: 25875338 PMCID: PMC4398559 DOI: 10.1371/journal.pone.0123680] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Accepted: 03/06/2015] [Indexed: 01/07/2023] Open
Abstract
Thin films of binary C60/Ti composites, with various concentrations of Ti ranging from ~ 25% to ~ 70%, were deposited on microscopic glass coverslips and were tested for their potential use in bone tissue engineering as substrates for the adhesion and growth of bone cells. The novelty of this approach lies in the combination of Ti atoms (i.e., widely used biocompatible material for the construction of stomatological and orthopedic implants) with atoms of fullerene C60, which can act as very efficient radical scavengers. However, fullerenes and their derivatives are able to generate harmful reactive oxygen species and to have cytotoxic effects. In order to stabilize C60 molecules and to prevent their possible cytotoxic effects, deposition in the compact form of Ti/C60 composites (with various Ti concentrations) was chosen. The reactivity of C60/Ti composites may change in time due to the physicochemical changes of molecules in an air atmosphere. In this study, we therefore tested the dependence between the age of C60/Ti films (from one week to one year) and the adhesion, morphology, proliferation, viability, metabolic activity and potential DNA damage to human osteosarcoma cells (lines MG-63 and U-2 OS). After 7 days of cultivation, we did not observe any negative influence of fresh or aged C60/Ti layers on cell behavior, including the DNA damage response. The presence of Ti atoms resulted in improved properties of the C60 layers, which became more suitable for cell cultivation.
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Neacsu P, Gordin DM, Mitran V, Gloriant T, Costache M, Cimpean A. In vitro performance assessment of new beta Ti-Mo-Nb alloy compositions. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 47:105-13. [PMID: 25492178 DOI: 10.1016/j.msec.2014.11.023] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Revised: 10/08/2014] [Accepted: 11/06/2014] [Indexed: 10/24/2022]
Abstract
New β-titanium based alloys with low Young's modulus are currently required for the next generation of metallic implant materials to ensure good mechanical compatibility with bone. Several of these are representatives of the ternary Ti-Mo-Nb system. The aim of this paper is to assess the in vitro biological performance of five new low modulus alloy compositions, namely Ti12Mo, Ti4Mo32Nb, Ti6Mo24Nb, Ti8Mo16Nb and Ti10Mo8Nb. Commercially pure titanium (cpTi) was used as a reference material. Comparative studies of cell activity exhibited by MC3T3-E1 pre-osteoblasts over short- and long-term culture periods demonstrated that these newly-developed metallic substrates exhibited an increased biocompatibility in terms of osteoblast proliferation, collagen production and extracellular matrix mineralization. Furthermore, all analyzed biomaterials elicited an almost identical cell response. Considering that macrophages play a pivotal role in bone remodeling, the behavior of a monocyte-macrophage cell line, RAW 264.7, was also investigated showing a slightly lower inflammatory response to Ti-Mo-Nb biomaterials as compared with cpTi. Thus, the biological performances together with the superior mechanical properties recommend these alloys for bone implant applications.
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Affiliation(s)
- Patricia Neacsu
- University of Bucharest, Department of Biochemistry and Molecular Biology, 91-95 Spl. Independentei, 050095 Bucharest, Romania
| | - Doina-Margareta Gordin
- INSA Rennes, UMR CNRS 6226 ISCR/Chimie-Métallurgie, 20 avenue des Buttes de Coësmes, F-35043 Rennes, Cedex, France
| | - Valentina Mitran
- University of Bucharest, Department of Biochemistry and Molecular Biology, 91-95 Spl. Independentei, 050095 Bucharest, Romania
| | - Thierry Gloriant
- INSA Rennes, UMR CNRS 6226 ISCR/Chimie-Métallurgie, 20 avenue des Buttes de Coësmes, F-35043 Rennes, Cedex, France
| | - Marieta Costache
- University of Bucharest, Department of Biochemistry and Molecular Biology, 91-95 Spl. Independentei, 050095 Bucharest, Romania
| | - Anisoara Cimpean
- University of Bucharest, Department of Biochemistry and Molecular Biology, 91-95 Spl. Independentei, 050095 Bucharest, Romania.
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Vandrovcova M, Jirka I, Novotna K, Lisa V, Frank O, Kolska Z, Stary V, Bacakova L. Interaction of human osteoblast-like Saos-2 and MG-63 cells with thermally oxidized surfaces of a titanium-niobium alloy. PLoS One 2014; 9:e100475. [PMID: 24977704 PMCID: PMC4076233 DOI: 10.1371/journal.pone.0100475] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Accepted: 05/26/2014] [Indexed: 11/19/2022] Open
Abstract
An investigation was made of the adhesion, growth and differentiation of osteoblast-like MG-63 and Saos-2 cells on titanium (Ti) and niobium (Nb) supports and on TiNb alloy with surfaces oxidized at 165°C under hydrothermal conditions and at 600°C in a stream of air. The oxidation mode and the chemical composition of the samples tuned the morphology, topography and distribution of the charge on their surfaces, which enabled us to evaluate the importance of these material characteristics in the interaction of the cells with the sample surface. Numbers of adhered MG-63 and Saos-2 cells correlated with the number of positively-charged (related with the Nb2O5 phase) and negatively-charged sites (related with the TiO2 phase) on the alloy surface. Proliferation of these cells is correlated with the presence of positively-charged (i.e. basic) sites of the Nb2O5 alloy phase, while cell differentiation is correlated with negatively-charged (acidic) sites of the TiO2 alloy phase. The number of charged sites and adhered cells was substantially higher on the alloy sample oxidized at 600°C than on the hydrothermally treated sample at 165°C. The expression values of osteoblast differentiation markers (collagen type I and osteocalcin) were higher for cells grown on the Ti samples than for those grown on the TiNb samples. This was more particularly apparent in the samples treated at 165°C. No considerable immune activation of murine macrophage-like RAW 264.7 cells on the tested samples was found. The secretion of TNF-α by these cells into the cell culture media was much lower than for either cells grown in the presence of bacterial lipopolysaccharide, or untreated control samples. Thus, oxidized Ti and TiNb are both promising materials for bone implantation; TiNb for applications where bone cell proliferation is desirable, and Ti for induction of osteogenic cell differentiation.
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Affiliation(s)
- Marta Vandrovcova
- Institute of Physiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Ivan Jirka
- J. Heyrovsky Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Katarina Novotna
- Institute of Physiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Vera Lisa
- Institute of Physiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Otakar Frank
- J. Heyrovsky Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Zdenka Kolska
- Faculty of Science, J.E. Purkinje University, Usti nad Labem, Czech Republic
| | - Vladimir Stary
- Faculty of Mechanical Engineering, Czech Technical University in Prague, Prague, Czech Republic
| | - Lucie Bacakova
- Institute of Physiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
- * E-mail:
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33
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Marchetti F, Pampaloni G, Pinzino C, Zacchini S. Stable [M2F11]-(M = Nb, Ta) Salts of Protonated 1,3-Dimethoxybenzene. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300961] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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34
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Zhao X, Wang G, Zheng H, Lu Z, Zhong X, Cheng X, Zreiqat H. Delicate refinement of surface nanotopography by adjusting TiO2 coating chemical composition for enhanced interfacial biocompatibility. ACS APPLIED MATERIALS & INTERFACES 2013; 5:8203-8209. [PMID: 23957368 DOI: 10.1021/am402319a] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Surface topography and chemistry have significant influences on the biological performance of biomedical implants. Our aim is to produce an implant surface with favorable biological properties by dual modification of surface chemistry and topography in one single simple process. In this study, because of its chemical stability, excellent corrosion resistance, and biocompatibility, titanium oxide (TiO2) was chosen to coat the biomedical Ti alloy implants. Biocompatible elements (niobium (Nb) and silicon (Si)) were introduced into TiO2 matrix to change the surface chemical composition and tailor the thermophysical properties, which in turn leads to the generation of topographical features under specific thermal history of plasma spraying. Results demonstrated that introduction of Nb2O5 resulted in the formation of Ti0.95Nb0.95O4 solid solution and led to the generation of nanoplate network structures on the composite coating surface. By contrast, the addition of SiO2 resulted in a hairy nanostructure and coexistence of rutile and quartz phases in the coating. Additionally, the introduction of Nb2O5 enhanced the corrosion resistance of TiO2 coating, whereas SiO2 did not exert much effect on the corrosion behaviors. Compared to the TiO2 coating, TiO2 coating doped with Nb2O5 enhanced primary human osteoblast adhesion and promoted cell proliferation, whereas TiO2 coatings with SiO2 were inferior in their bioactivity, compared to TiO2 coatings. Our results suggest that the incorporation of Nb2O5 can enhance the biological performance of TiO2 coatings by changing the surface chemical composition and nanotopgraphy, suggesting its potential use in modification of biomedical TiO2 coatings in orthopedic applications.
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Affiliation(s)
- Xiaobing Zhao
- School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China
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35
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Growth and potential damage of human bone-derived cells on fresh and aged fullerene c60 films. Int J Mol Sci 2013; 14:9182-204. [PMID: 23624607 PMCID: PMC3676779 DOI: 10.3390/ijms14059182] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Revised: 04/10/2013] [Accepted: 04/15/2013] [Indexed: 01/23/2023] Open
Abstract
Fullerenes are nanoparticles composed of carbon atoms arranged in a spherical hollow cage-like structure. Numerous studies have evaluated the therapeutic potential of fullerene derivates against oxidative stress-associated conditions, including the prevention or treatment of arthritis. On the other hand, fullerenes are not only able to quench, but also to generate harmful reactive oxygen species. The reactivity of fullerenes may change in time due to the oxidation and polymerization of fullerenes in an air atmosphere. In this study, we therefore tested the dependence between the age of fullerene films (from one week to one year) and the proliferation, viability and metabolic activity of human osteosarcoma cells (lines MG-63 and U-2 OS). We also monitored potential membrane and DNA damage and morphological changes of the cells. After seven days of cultivation, we did not observe any cytotoxic morphological changes, such as enlarged cells or cytosolic vacuole formation. Furthermore, there was no increased level of DNA damage. The increasing age of the fullerene films did not cause enhancement of cytotoxicity. On the contrary, it resulted in an improvement in the properties of these materials, which are more suitable for cell cultivation. Therefore, fullerene films could be considered as a promising material with potential use as a bioactive coating of cell carriers for bone tissue engineering.
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36
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Bortoluzzi M, Marchetti F, Pampaloni G, Pucino M, Zacchini S. Coordination complexes of NbX5 (X = F, Cl) with (N,O)- and (O,O)-donor ligands and the first X-ray characterization of a neutral NbF5 adduct. Dalton Trans 2013; 42:13054-64. [DOI: 10.1039/c3dt50930c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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