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Mirzayev MN, Slavov L, Donkov A, Neov D, Popov E, Demir E, Genov I, Abdurakhimov B, Vladescu A, Biira S, Karaman T, Sharipov Z, Doroshkevich A, Mirzayeva D, Mustafayev I, Mahmudov H, Belova M, Mamedov F, Thang T, Stef M, Mita C. Effects of neutron irradiation at different fluencies on nanosized anatase titanium dioxide. Radiat Phys Chem Oxf Engl 1993 2022. [DOI: 10.1016/j.radphyschem.2022.109988] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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2
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Neov D, Slavov L, Donkov A, Mirzayev M, Popov E, Demir E, Siemek K, Djourelov N, Turchenko V, Sharipov Z, Horodek P, Beskrovnyi A, Valizade A, Samedov O, Vladescu A, Krezhov K, Felicia I. Structural study of W2B obtained via mechanical alloying of W, B4C, TiC and graphite before and after He ions irradiation. Nuclear Materials and Energy 2022. [DOI: 10.1016/j.nme.2022.101201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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3
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Tamay DG, Gokyer S, Schmidt J, Vladescu A, Yilgor Huri P, Hasirci V, Hasirci N. Corrosion Resistance and Cytocompatibility of Magnesium-Calcium Alloys Modified with Zinc- or Gallium-Doped Calcium Phosphate Coatings. ACS Appl Mater Interfaces 2022; 14:104-122. [PMID: 34958199 DOI: 10.1021/acsami.1c16307] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
In orthopedic surgery, metals are preferred to support or treat damaged bones due to their high mechanical strength. However, the necessity for a second surgery for implant removal after healing creates problems. Therefore, biodegradable metals, especially magnesium (Mg), gained importance, although their extreme susceptibility to galvanic corrosion limits their applications. The focus of this study was to control the corrosion of Mg and enhance its biocompatibility. For this purpose, surfaces of magnesium-calcium (MgCa1) alloys were modified with calcium phosphate (CaP) or CaP doped with zinc (Zn) or gallium (Ga) via microarc oxidation. The effects of surface modifications on physical, chemical, and mechanical properties and corrosion resistance of the alloys were studied using surface profilometry, goniometry, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), nanoindentation, and electrochemical impedance spectroscopy (EIS). The coating thickness was about 5-8 μm, with grain sizes of 43.1 nm for CaP coating and 28.2 and 58.1 nm for Zn- and Ga-doped coatings, respectively. According to EIS measurements, the capacitive response (Yc) decreased from 11.29 to 8.72 and 0.15 Ω-1 cm-2 sn upon doping with Zn and Ga, respectively. The Ecorr value, which was -1933 mV for CaP-coated samples, was found significantly electropositive at -275 mV for Ga-doped ones. All samples were cytocompatible according to indirect tests. In vitro culture with Saos-2 cells led to changes in the surface compositions of the alloys. The numbers of cells attached to the Zn-doped (2.6 × 104 cells/cm2) and Ga-doped (6.3 × 104 cells/cm2) coatings were higher than that on the surface of the undoped coating (1.0 × 103 cells/cm2). Decreased corrosivity and enhanced cell affinity of the modified MgCa alloys (CaP coated and Zn and Ga doped, with Ga-doped ones having the greatest positive effect) make them novel and promising candidates as biodegradable metallic implant materials for the treatment of bone damages and other orthopedic applications.
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Affiliation(s)
- Dilara Goksu Tamay
- BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University (METU), Ankara 06800, Turkey
- Department of Biotechnology, Middle East Technical University (METU), Ankara 06800, Turkey
| | - Seyda Gokyer
- Department of Biomedical Engineering, Ankara University, Ankara 06830, Turkey
| | - Jürgen Schmidt
- Team Leader Electrochemistry, INNOVENT e.V. Technology Development, Prüssingstraße 27b, Jena 07745, Germany
| | - Alina Vladescu
- National Institute of Research and Development for Optoelectronics - INOE 2000, 409 Atomistilor St., Magurele 077125, Romania
- Physical Materials Science and Composite Materials Centre, Research School of Chemistry and Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Lenin Avenue 43, Tomsk 634050, Russia
| | - Pinar Yilgor Huri
- Department of Biomedical Engineering, Ankara University, Ankara 06830, Turkey
| | - Vasif Hasirci
- BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University (METU), Ankara 06800, Turkey
- Department of Medical Engineering, Acibadem Mehmet Ali Aydinlar University, Istanbul 34684, Turkey
- Biomaterials Center, Acibadem Mehmet Ali Aydinlar University, Istanbul 34684, Turkey
| | - Nesrin Hasirci
- BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University (METU), Ankara 06800, Turkey
- Department of Biotechnology, Middle East Technical University (METU), Ankara 06800, Turkey
- Department of Chemistry, Middle East Technical University, Ankara 06800, Turkey
- Tissue Engineering and Biomaterial Research Center, Near East University, 99138 Nicosia, TRNC, Mersin 10, Turkey
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4
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Secchi V, Franchi S, Dettin M, Zamuner A, Beranová K, Vladescu A, Battocchio C, Graziani V, Tortora L, Iucci G. Hydroxyapatite Surfaces Functionalized with a Self-Assembling Peptide: XPS, RAIRS and NEXAFS Study. Nanomaterials (Basel) 2020; 10:nano10061151. [PMID: 32545421 PMCID: PMC7353169 DOI: 10.3390/nano10061151] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 06/07/2020] [Accepted: 06/09/2020] [Indexed: 11/16/2022]
Abstract
Hydroxyapatite (HAP) coatings can improve the biocompatibility and bioactivity of titanium alloys, such as Ti6Al4V, commonly used as material for orthopedic prostheses. In this framework, we have studied the surface of HAP coatings enriched with Mg and either Si or Ti deposited by RF magnetron sputtering on Ti6Al4V. HAP coatings have been furtherly functionalized by adsorption of a self-assembling peptide (SAP) on the HAP surface, with the aim of increasing the material bioactivity. The selected SAP (peptide sequence AbuEAbuEAbuKAbuKAbuEAbuEAbuKAbuK) is a self-complementary oligopeptide able to generate extended ordered structures by self-assembling in watery solutions. Samples were prepared by incubation of the HAP coatings in SAP solutions and subsequently analyzed by X-Ray Photoelectron Spectroscopy (XPS), Fourier Transform Infrared (FTIR) and Near Edge X-Ray Absorption Fine Structure (NEXAFS) spectroscopies, in order to determine the amount of adsorbed peptide, the peptide stability and the structure of the peptide overlayer on the HAP coatings as a function of the HAP substrate and of the pH of the mother SAP solution. Experimental data yielded evidence of SAP adsorption on the HAP surface, and peptide overlayers showed ordered structure and molecular orientation. The thickness of the SAP overlayer depends on the composition of the HAP coating.
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Affiliation(s)
- Valeria Secchi
- Department of Science, Roma Tre University, Via della Vasca Navale 79, 00146 Rome, Italy; (V.S.); (C.B.); (L.T.)
- Department of Materials Science, University of Milano-Bicocca, Via Cozzi 55, 20125 Milan, Italy
| | - Stefano Franchi
- Department of Science, Roma Tre University, Via della Vasca Navale 79, 00146 Rome, Italy; (V.S.); (C.B.); (L.T.)
- Institute of Structure of Matter (ISM), National Research Council (CNR), Via Fosso del Cavaliere 100, 00133 Rome, Italy
- Correspondence: (S.F.); (G.I.)
| | - Monica Dettin
- Department of Industrial Engineering, University of Padua, Via Marzolo 9, 35131 Padua, Italy; (M.D.); (A.Z.)
| | - Annj Zamuner
- Department of Industrial Engineering, University of Padua, Via Marzolo 9, 35131 Padua, Italy; (M.D.); (A.Z.)
| | - Klára Beranová
- Materials Science Beamline, Elettra Sincrotrone Trieste SCpA, Strada Statale 14, km 163.5, 34149 Basovizza-Trieste, Italy;
| | - Alina Vladescu
- Department for Advanced Surface Processing and Analysis by Vacuum Technologies, National Institute of Research and Development for Optoelectronics, 409 Atomistilor St., 077125 Magurele, Romania;
- Physical Materials Science and Composite Materials Centre, National Research Tomsk Polytechnic University, Lenin Avenue 43, 634050 Tomsk, Russia
| | - Chiara Battocchio
- Department of Science, Roma Tre University, Via della Vasca Navale 79, 00146 Rome, Italy; (V.S.); (C.B.); (L.T.)
| | - Valerio Graziani
- Surface Analysis Laboratory, INFN University Roma Tre, via della Vasca Navale 84, 00146 Rome, Italy;
| | - Luca Tortora
- Department of Science, Roma Tre University, Via della Vasca Navale 79, 00146 Rome, Italy; (V.S.); (C.B.); (L.T.)
- Surface Analysis Laboratory, INFN University Roma Tre, via della Vasca Navale 84, 00146 Rome, Italy;
| | - Giovanna Iucci
- Department of Science, Roma Tre University, Via della Vasca Navale 79, 00146 Rome, Italy; (V.S.); (C.B.); (L.T.)
- Correspondence: (S.F.); (G.I.)
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5
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Dinu M, Braic L, Padmanabhan SC, Morris MA, Titorencu I, Pruna V, Parau A, Romanchikova N, Petrik LF, Vladescu A. Characterization of electron beam deposited Nb 2O 5 coatings for biomedical applications. J Mech Behav Biomed Mater 2019; 103:103582. [PMID: 32090911 DOI: 10.1016/j.jmbbm.2019.103582] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 11/30/2019] [Accepted: 12/03/2019] [Indexed: 12/13/2022]
Abstract
Niobium oxide coatings deposited on Ti6Al4V substrates by electron beam deposition and annealed in air at 600 °C and 800 °C were evaluated for their suitability towards dental, maxillofacial or orthopaedic implant applications. A detailed physico-chemical properties investigation was carried out in order to determine their elemental and phase composition, surface morphology and roughness, mechanical properties, wettability, and corrosion resistance in simulated body fluid solution (pH = 7.4) at room temperature. The biocompatibility of the bare Ti6Al4V substrate and coated surfaces was evaluated by testing the cellular adhesion and viability/proliferation of human osteosarcoma cells (MG-63) after 72 h of incubation. The coatings annealed at 800 °C exhibit more phase pure nanocrystalline Nb2O5 surfaces with enhanced wettability, reduced porosity and enhanced corrosion resistance properties making them good candidate for dental, maxillofacial or orthopaedic implant applications.
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Affiliation(s)
- Mihaela Dinu
- National Institute of Research and Development for Optoelectronics INOE 2000, 409 Atomistilor St., Magurele, Romania
| | - Laurentiu Braic
- National Institute of Research and Development for Optoelectronics INOE 2000, 409 Atomistilor St., Magurele, Romania.
| | - Sibu C Padmanabhan
- University College Cork, Department of Chemistry, College Road, Cork, Ireland; Advanced Materials and BioEngineering Research (AMBER), Trinity College Dublin, College Green, Dublin 2, Ireland
| | - Michael A Morris
- University College Cork, Department of Chemistry, College Road, Cork, Ireland; Advanced Materials and BioEngineering Research (AMBER), Trinity College Dublin, College Green, Dublin 2, Ireland
| | - Irina Titorencu
- Institute of Cellular Biology and Pathology "Nicolae Simionescu" of the Romanian Academy, 8 B.P. Hasdeu, 050568, Bucharest, Romania
| | - Vasile Pruna
- Institute of Cellular Biology and Pathology "Nicolae Simionescu" of the Romanian Academy, 8 B.P. Hasdeu, 050568, Bucharest, Romania
| | - Anca Parau
- National Institute of Research and Development for Optoelectronics INOE 2000, 409 Atomistilor St., Magurele, Romania
| | | | - Leslie F Petrik
- University of the Western Cape, Department of Chemistry, Robert Sobukwe Road, Bellville, Cape Town, South Africa
| | - Alina Vladescu
- National Institute of Research and Development for Optoelectronics INOE 2000, 409 Atomistilor St., Magurele, Romania; National Research Tomsk Polytechnic University, 43 Lenin Avenue, 634050, Tomsk, Russia
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6
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Saveleva M, Vladescu A, Cotrut C, Van der Meeren L, Surmeneva M, Surmenev R, Parakhonskiy B, Skirtach AG. The effect of hybrid coatings based on hydrogel, biopolymer and inorganic components on the corrosion behavior of titanium bone implants. J Mater Chem B 2019; 7:6778-6788. [PMID: 31595943 DOI: 10.1039/c9tb01287g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Modification of titanium (Ti) bone implant materials with hybrid organic-inorganic coatings is a novel promising approach to improve the osteoconductivity and osteointegration of implants and prevent their failure after implantation. However, in these coatings, which are mostly hydrophilic, chemically active moieties capable of releasing oxidizing ions can have a significant influence on the corrosion resistance of Ti, which is critical for the Ti implant osteointegration behavior. In this research, in order to study the dependence of the change of the corrosion behavior of Ti on the composition of the coating, Ti surfaces were modified with various coatings: organic (alginate hydrogel crosslinked with Ca2+ ions (Alg), and dextran sulfate (DS)), inorganic (porous calcium carbonate CaCO3), and composite organic-inorganic (Alg-CaCO3, DS-CaCO3). The morphology and composition of these materials before and after the corrosion experiment, performed in simulated body fluid (SBF), were followed by extensive characterization. Electrochemical impedance spectroscopy (EIS) was performed to study the corrosion behavior of the prepared materials in SBF. The characteristics obtained during the EIS measurements revealed the dependence of the variation of the corrosion resistance level on the composition of the coating. The bare Ti surface had the higher value of the total impedance compared with the modified surfaces, while the Ti surfaces modified with organic coatings demonstrated the best charge transfer resistance in comparison with the coatings containing the inorganic CaCO3 component and uncoated Ti.
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Affiliation(s)
- Mariia Saveleva
- Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium. and Educational and Research Institute of Nanostructures and Biosystem, Saratov State University, Astrakhanskaya 83, Saratov 410026, Russia.
| | - Alina Vladescu
- National Institute of Research and Development for Optoelectronics - INOE 2000, Department for Advanced Surface Processing and Analysis by Vacuum Technologies, 409 Atomistilor St., 077125 Magurele, Romania and Physical Materials Science and Composite Materials Centre, Tomsk Polytechnic University, Lenin's Avenue, 30, Tomsk, 634050, Russia
| | - Cosmin Cotrut
- Physical Materials Science and Composite Materials Centre, Tomsk Polytechnic University, Lenin's Avenue, 30, Tomsk, 634050, Russia and Faculty of Materials and Science Engineering, University Politehnica of Bucharest, Splaiul IndependenŢei 313, 060042, Bucharest, Romania
| | - Louis Van der Meeren
- Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium.
| | - Maria Surmeneva
- Physical Materials Science and Composite Materials Centre, Tomsk Polytechnic University, Lenin's Avenue, 30, Tomsk, 634050, Russia
| | - Roman Surmenev
- Physical Materials Science and Composite Materials Centre, Tomsk Polytechnic University, Lenin's Avenue, 30, Tomsk, 634050, Russia
| | - Bogdan Parakhonskiy
- Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium.
| | - Andre G Skirtach
- Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium.
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Sandu IG, Vasilache V, Sandu AV, Chirazi M, Honceriu C, Dabija RC, Vladescu A, Cotrut CM, Sandu I. The Role of Saline Aerosols in the Prevention and Therapy of Cardio-respiratory and Osteo-muscular Afflictions. Rev Chim 2018. [DOI: 10.37358/rc.18.10.6634] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The saline aerosols generated in gaseous media, as nanodispersions, behave, with respect to the concentration levels and the lifespan, as trimodal distributions (the three domains with Gaussian distributions: fine or Aitken under 50 �m, medium between 50 and 500 mm and, respectively, coarse or large between 500 and 1000 mm). The generation in latent state is dependent on the active surface of the source (number of generator centres, the size and position of the fluorescences, the porosity, size and shape of the source, etc.), the climatic parameters, but also on a series of other characteristics of the gaseous medium. Our team has demonstrated experimentally that saline aerosols, NaCl type, besides the ability to prevent and treat broncho-respiratory and cardiac conditions, through coassistance of saline aerosols of other cations than sodium, and of the iodine anion, have for certain levels of concentrations propitious effects over the immune, bone and muscular systems. Similarly proved has been the positive influence on the development of children, as well the determinant role in increasing athletic performance and of other human subjects performing intense activities.
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Vladescu A, Mihai Cotrut C, Ak Azem F, Bramowicz M, Pana I, Braic V, Birlik I, Kiss A, Braic M, Abdulgader R, Booysen R, Kulesza S, Monsees TK. Sputtered Si and Mg doped hydroxyapatite for biomedical applications. Biomed Mater 2018; 13:025011. [DOI: 10.1088/1748-605x/aa9718] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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9
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Vladescu A, Vranceanu DM, Kulesza S, Ivanov AN, Bramowicz M, Fedonnikov AS, Braic M, Norkin IA, Koptyug A, Kurtukova MO, Dinu M, Pana I, Surmeneva MA, Surmenev RA, Cotrut CM. Influence of the electrolyte's pH on the properties of electrochemically deposited hydroxyapatite coating on additively manufactured Ti64 alloy. Sci Rep 2017; 7:16819. [PMID: 29196637 PMCID: PMC5711918 DOI: 10.1038/s41598-017-16985-z] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 11/16/2017] [Indexed: 01/03/2023] Open
Abstract
Properties of the hydroxyapatite obtained by electrochemical assisted deposition (ED) are dependent on several factors including deposition temperature, electrolyte pH and concentrations, applied potential. All of these factors directly influence the morphology, stoichiometry, crystallinity, electrochemical behaviour, and particularly the coating thickness. Coating structure together with surface micro- and nano-scale topography significantly influence early stages of the implant bio-integration. The aim of this study is to analyse the effect of pH modification on the morphology, corrosion behaviour and in vitro bioactivity and in vivo biocompatibility of hydroxyapatite prepared by ED on the additively manufactured Ti64 samples. The coatings prepared in the electrolytes with pH = 6 have predominantly needle like morphology with the dimensions in the nanometric scale (~30 nm). Samples coated at pH = 6 demonstrated higher protection efficiency against the corrosive attack as compared to the ones coated at pH = 5 (~93% against 89%). The in vitro bioactivity results indicated that both coatings have a greater capacity of biomineralization, compared to the uncoated Ti64. Somehow, the coating deposited at pH = 6 exhibited good corrosion behaviour and high biomineralization ability. In vivo subcutaneous implantation of the coated samples into the white rats for up to 21 days with following histological studies showed no serious inflammatory process.
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Affiliation(s)
- Alina Vladescu
- National Institute for Optoelectronics, Department for Advanced Surface Processing and Analysis by Vacuum Technologies, 409 Atomistilor St., Magurele, RO77125, Romania.,National Research Tomsk Polytechnic University, Lenin Avenue 43, Tomsk, 634050, Russia
| | - Diana M Vranceanu
- University Politehnica of Bucharest, 313 Spl. Independentei, Bucharest, RO60042, Romania
| | - Slawek Kulesza
- Warmia and Mazury University in Olsztyn, Department of Mathematics and Computer Science, Słoneczna 54, Olsztyn, 10-719, Poland
| | - Alexey N Ivanov
- Scientific Research Institute of Traumatology, Orthopedics and Neurosurgery of Federal State Budgetary Educational Institution of Higher Education "V.I. Razumovsky Saratov State Medical University" of the Ministry of Healthcare of the Russian Federation, 148 Chernyshevskogo st., Saratov, 410012, Russia
| | - Mirosław Bramowicz
- Warmia and Mazury University in Olsztyn, Department of Mathematics and Computer Science, Słoneczna 54, Olsztyn, 10-719, Poland
| | - Alexander S Fedonnikov
- Scientific Research Institute of Traumatology, Orthopedics and Neurosurgery of Federal State Budgetary Educational Institution of Higher Education "V.I. Razumovsky Saratov State Medical University" of the Ministry of Healthcare of the Russian Federation, 148 Chernyshevskogo st., Saratov, 410012, Russia
| | - Mariana Braic
- National Institute for Optoelectronics, Department for Advanced Surface Processing and Analysis by Vacuum Technologies, 409 Atomistilor St., Magurele, RO77125, Romania
| | - Igor A Norkin
- Scientific Research Institute of Traumatology, Orthopedics and Neurosurgery of Federal State Budgetary Educational Institution of Higher Education "V.I. Razumovsky Saratov State Medical University" of the Ministry of Healthcare of the Russian Federation, 148 Chernyshevskogo st., Saratov, 410012, Russia
| | - Andrey Koptyug
- Additive Manufacturing Group, Sports Tech Research Centre, Mid Sweden University, Akademigatan 1, Östersund, 831 25, Sweden
| | - Maria O Kurtukova
- Department of Histology, Federal State Budgetary Educational Institution of Higher Education "V.I. Razumovsky Saratov State Medical University" of the Ministry of Healthcare of the Russian Federation, 112 Bolshaya Kazachia st., Saratov, 410012, Russia
| | - Mihaela Dinu
- National Institute for Optoelectronics, Department for Advanced Surface Processing and Analysis by Vacuum Technologies, 409 Atomistilor St., Magurele, RO77125, Romania
| | - Iulian Pana
- National Institute for Optoelectronics, Department for Advanced Surface Processing and Analysis by Vacuum Technologies, 409 Atomistilor St., Magurele, RO77125, Romania
| | - Maria A Surmeneva
- National Research Tomsk Polytechnic University, Lenin Avenue 43, Tomsk, 634050, Russia
| | - Roman A Surmenev
- National Research Tomsk Polytechnic University, Lenin Avenue 43, Tomsk, 634050, Russia
| | - Cosmin M Cotrut
- University Politehnica of Bucharest, 313 Spl. Independentei, Bucharest, RO60042, Romania. .,National Research Tomsk Polytechnic University, Lenin Avenue 43, Tomsk, 634050, Russia.
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Pruncu CI, Braic M, Dearn KD, Farcau C, Watson R, Constantin LR, Balaceanu M, Braic V, Vladescu A. Corrosion and tribological performance of quasi-stoichiometric titanium containing carbo-nitride coatings. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2016.09.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Mukhametkaliyev T, Surmeneva M, Vladescu A, Cotrut C, Braic M, Dinu M, Vranceanu M, Pana I, Mueller M, Surmenev R. A biodegradable AZ91 magnesium alloy coated with a thin nanostructured hydroxyapatite for improving the corrosion resistance. Materials Science and Engineering: C 2017; 75:95-103. [DOI: 10.1016/j.msec.2017.02.033] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2016] [Revised: 02/07/2017] [Accepted: 02/07/2017] [Indexed: 12/23/2022]
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12
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Vladescu A, Titorencu I, Dekhtyar Y, Jinga V, Pruna V, Balaceanu M, Dinu M, Pana I, Vendina V, Braic M. In Vitro Biocompatibility of Si Alloyed Multi-Principal Element Carbide Coatings. PLoS One 2016; 11:e0161151. [PMID: 27571361 PMCID: PMC5003397 DOI: 10.1371/journal.pone.0161151] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 08/01/2016] [Indexed: 11/23/2022] Open
Abstract
In the current study, we have examined the possibility to improve the biocompatibility of the (TiZrNbTaHf)C through replacement of either Ti or Ta by Si. The coatings were deposited on Si and 316L stainless steel substrates by magnetron sputtering in an Ar+CH4 mixed atmosphere and were examined for elemental composition, chemical bonds, surface topography, surface electrical charge and biocompatible characteristics. The net surface charge was evaluated at nano and macroscopic scale by measuring the electrical potential and work function, respectively. The biocompatible tests comprised determination of cell viability and cell attachment to the coated surface. The deposited coatings had C/(metal+Si) ratios close to unity, while a mixture of metallic carbide, free-carbon and oxidized species formed on the film surface. The coatings’ surfaces were smooth and no influence of surface roughness on electrical charge or biocompatibility was found. The biocompatible characteristics correlated well with the electrical potential/work function, suggesting a significant role of surface charge in improving biocompatibility, particularly cell attachment to coating's surface. Replacement of either Ti or Ta by Si in the (TiZrNbTaHf)C coating led to an enhanced surface electrical charge, as well as to superior biocompatible properties, with best results for the (TiZrNbSiHf)C coating.
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Affiliation(s)
- Alina Vladescu
- National Institute for Optoelectronics, Magurele-Bucharest, Romania
| | - Irina Titorencu
- Institute of Cellular Biology and Pathology "Nicolae Simionescu" of the Romanian Academy, Bucharest, Romania
| | | | - Victor Jinga
- Institute of Cellular Biology and Pathology "Nicolae Simionescu" of the Romanian Academy, Bucharest, Romania
| | - Vasile Pruna
- Institute of Cellular Biology and Pathology "Nicolae Simionescu" of the Romanian Academy, Bucharest, Romania
| | - Mihai Balaceanu
- National Institute for Optoelectronics, Magurele-Bucharest, Romania
| | - Mihaela Dinu
- National Institute for Optoelectronics, Magurele-Bucharest, Romania
| | - Iulian Pana
- National Institute for Optoelectronics, Magurele-Bucharest, Romania
- Faculty of Physics, Bucharest University, Magurele-Bucharest, Romania
| | | | - Mariana Braic
- National Institute for Optoelectronics, Magurele-Bucharest, Romania
- * E-mail:
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13
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Vladescu A, Padmanabhan SC, Ak Azem F, Braic M, Titorencu I, Birlik I, Morris MA, Braic V. Mechanical properties and biocompatibility of the sputtered Ti doped hydroxyapatite. J Mech Behav Biomed Mater 2016; 63:314-325. [PMID: 27450034 DOI: 10.1016/j.jmbbm.2016.06.025] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2016] [Revised: 06/21/2016] [Accepted: 06/26/2016] [Indexed: 11/27/2022]
Abstract
The hydroxyapatite enriched with Ti were prepared as possible candidates for biomedical applications especially for implantable devices that are in direct contact to the bone. The hydroxyapatites with different Ti content were prepared by RF magnetron sputtering on Ti-6Al-4V alloy using pure hydroxyapatite and TiO2 targets. The content of Ti was modified by changing the RF power fed on TiO2 target. The XPS and FTIR analyses revealed the presence of hydroxyapatite structure. The hardness and elastic modulus of the hydroxyapatite were increased by Ti addition. After 5 days of culture, the cell viability of the Ti-6Al-4V was enhanced by depositing with undoped or doped hydroxyapatite. The Ti additions led to an increase in cell viability of hydroxyapatite, after 5 days of culture. The electron microscopy showed the presence of more cells on the surface of Ti-enriched hydroxyapatite than those observed on the surface of the uncoated alloys or undoped hydroxyapatite.
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Affiliation(s)
- A Vladescu
- National Institute for Optoelectronics (INOE2000), 409 Atomistilor St., Magurele, Romania.
| | - S C Padmanabhan
- Department of Chemistry, University College Cork, College Road, Cork, Ireland; Advanced Materials and BioEngineering Research (AMBER) and School of Chemistry, Trinity College Dublin, College Green, Dublin 2, Ireland.
| | - F Ak Azem
- Dokuz Eylul University, Engineering Faculty, Metallurgical and Materials Engineering Department, Tinaztepe Campus, Izmir, Turkey
| | - M Braic
- National Institute for Optoelectronics (INOE2000), 409 Atomistilor St., Magurele, Romania
| | - I Titorencu
- Institute of Cellular Biology and Pathology Nicolae Simionescu of the Romanian Academy, 8 B.P. Hasdeu, Bucharest, Romania
| | - I Birlik
- Dokuz Eylul University, Engineering Faculty, Metallurgical and Materials Engineering Department, Tinaztepe Campus, Izmir, Turkey
| | - M A Morris
- Department of Chemistry, University College Cork, College Road, Cork, Ireland; Advanced Materials and BioEngineering Research (AMBER) and School of Chemistry, Trinity College Dublin, College Green, Dublin 2, Ireland
| | - V Braic
- National Institute for Optoelectronics (INOE2000), 409 Atomistilor St., Magurele, Romania
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Ciuca S, Badea M, Pozna E, Pana I, Kiss A, Floroian L, Semenescu A, Cotrut C, Moga M, Vladescu A. Evaluation of Ag containing hydroxyapatite coatings to the Candida albicans infection. J Microbiol Methods 2016; 125:12-8. [DOI: 10.1016/j.mimet.2016.03.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 03/18/2016] [Accepted: 03/21/2016] [Indexed: 10/22/2022]
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Surmeneva MA, Vladescu A, Surmenev RA, Pantilimon CM, Braic M, Cotrut CM. Correction: Study on a hydrophobic Ti-doped hydroxyapatite coating for corrosion protection of a titanium based alloy. RSC Adv 2016. [DOI: 10.1039/c6ra90096h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Correction for ‘Study on a hydrophobic Ti-doped hydroxyapatite coating for corrosion protection of a titanium based alloy‘ by M. A. Surmeneva et al., RSC Adv., 2016, 6, 87665–87674.
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Affiliation(s)
- M. A. Surmeneva
- Department of Experimental Physics
- Centre of Technology
- National Research Tomsk Polytechnic University
- 634050 Tomsk
- Russia
| | - A. Vladescu
- Department of Experimental Physics
- Centre of Technology
- National Research Tomsk Polytechnic University
- 634050 Tomsk
- Russia
| | - R. A. Surmenev
- Department of Experimental Physics
- Centre of Technology
- National Research Tomsk Polytechnic University
- 634050 Tomsk
- Russia
| | | | - M. Braic
- National Institute for Optoelectronics – INOE 2000
- Magurele
- Romania
| | - C. M. Cotrut
- Department of Experimental Physics
- Centre of Technology
- National Research Tomsk Polytechnic University
- 634050 Tomsk
- Russia
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Surmeneva MA, Vladescu A, Surmenev RA, Pantilimon CM, Braic M, Cotrut CM. Study on a hydrophobic Ti-doped hydroxyapatite coating for corrosion protection of a titanium based alloy. RSC Adv 2016. [DOI: 10.1039/c6ra03397k] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In the paper, hydroxyapatite coatings enriched with Ti were prepared as a possible candidate for biomedical applications, especially for implantable devices that are in direct contact with bone.
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Affiliation(s)
- M. A. Surmeneva
- Department of Experimental Physics
- Centre of Technology
- National Research Tomsk Polytechnic University
- 634050 Tomsk
- Russia
| | - A. Vladescu
- Department of Experimental Physics
- Centre of Technology
- National Research Tomsk Polytechnic University
- 634050 Tomsk
- Russia
| | - R. A. Surmenev
- Department of Experimental Physics
- Centre of Technology
- National Research Tomsk Polytechnic University
- 634050 Tomsk
- Russia
| | | | - M. Braic
- National Institute for Optoelectronics – INOE 2000
- Magurele
- Romania
| | - C. M. Cotrut
- Department of Experimental Physics
- Centre of Technology
- National Research Tomsk Polytechnic University
- 634050 Tomsk
- Russia
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Azem FA, Birlik I, Braic V, Toparli M, Celik E, Parau A, Kiss A, Titorencu I, Vladescu A. Effect of SiC interlayer between Ti6Al4V alloy and hydroxyapatite films. Proc Inst Mech Eng H 2015; 229:307-18. [DOI: 10.1177/0954411915578886] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Bioactive coatings are frequently used to improve the osseointegration of the metallic implants used in dentistry or orthopaedics. Among different types of bioactive coatings, hydroxyapatite (Ca10(PO4)6(OH)2) is one of the most extensively used due to its chemical similarities to the components of bones and teeth. In this article, production and characterization of hydroxyapatite films deposited on Ti6Al4V alloy prepared by magnetron sputtering were reported. Besides, SiC was deposited on substrate surface to study the interlayer effect. Obtained coatings were annealed at 600 °C for 30 and 120 min in a mixed atmosphere of N2 + H2O vapours with the heating rate of 12 °C min−1. The effects of SiC interlayer and heat treatment parameters on the structural, mechanical and corrosion properties were investigated. After heat treatment process, the crystalline hydroxyapatite was obtained. Additionally, cell viability tests were performed. The results show that the presence of the SiC interlayer contributes a decrease in surface roughness and improves the mechanical properties and corrosion performance of the hydroxyapatite coatings. Biological properties were not affected by the presence of the SiC interlayer.
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Affiliation(s)
- Funda Ak Azem
- Dokuz Eylul University, Faculty of Engineering, Department of Metallurgical and Materials Engineering, Izmir, Turkey
| | - Isil Birlik
- Dokuz Eylul University, Faculty of Engineering, Department of Metallurgical and Materials Engineering, Izmir, Turkey
| | - Viorel Braic
- National Institute for Optoelectronics, Magurele, Romania
| | - Mustafa Toparli
- Dokuz Eylul University, Faculty of Engineering, Department of Metallurgical and Materials Engineering, Izmir, Turkey
| | - Erdal Celik
- Dokuz Eylul University, Faculty of Engineering, Department of Metallurgical and Materials Engineering, Izmir, Turkey
| | - Anca Parau
- National Institute for Optoelectronics, Magurele, Romania
| | - Adrian Kiss
- National Institute for Optoelectronics, Magurele, Romania
| | - Irina Titorencu
- Institute of Cellular Biology and Pathology Nicolae Simionescu of the Romanian Academy, Bucharest, Romania
| | - Alina Vladescu
- National Institute for Optoelectronics, Magurele, Romania
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Braic V, Balaceanu M, Braic M, Vladescu A, Panseri S, Russo A. Characterization of multi-principal-element (TiZrNbHfTa)N and (TiZrNbHfTa)C coatings for biomedical applications. J Mech Behav Biomed Mater 2012; 10:197-205. [PMID: 22520431 DOI: 10.1016/j.jmbbm.2012.02.020] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2011] [Revised: 02/01/2012] [Accepted: 02/03/2012] [Indexed: 10/28/2022]
Abstract
Multi-principal-element (TiZrNbHfTa)N and (TiZrNbHfTa)C coatings were deposited on Ti6Al4V alloy by co-sputtering of Ti, Zr, Nb, Hf and Ta metallic targets in reactive atmosphere. The coatings were analyzed for elemental and phase compositions, crystalline structure, morphology, residual stress, hardness, friction performance, wear-corrosion resistance and cell viability. For all the films, only simple fcc solid solutions with (111) preferred orientations were found, with crystallite sizes in the range 7.2-13.5 nm. The coatings were subjected to compressive stress, with values ranging from 0.8 to 1.6 GPa. The carbide coating with the highest carbon content (carbon/metal ≈1.3) exhibited the highest hardness of about 31 GPa, the best friction behavior (μ = 0.12) and the highest wear resistance (wear rate K=0.2×10(-6)mm(3)N(-1)m(-1)), when testing in simulated body fluids (SBFs). Cell viability tests proved that the osteoblast cells were adherent to the coated substrates, and a very high percentage of live cells were observed on sample surfaces, after 72 h incubation time.
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Affiliation(s)
- V Braic
- National Institute for Optoelectronics, Magurele-Bucharest, RO 077125, Romania.
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Vladescu A, Kiss A, Braic M, Cotrut CM, Drob P, Balaceanu M, Vasilescu C, Braic V. Vacuum arc deposition of nanostructured multilayer coatings for biomedical applications. J Nanosci Nanotechnol 2008; 8:733-738. [PMID: 18464399 DOI: 10.1166/jnn.2008.d211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
In recent years, the smart materials have attracted much attention due to their unusual properties such as shape memory effect and pseudoelasticity, being widely used for biomedical implants. These materials contain certain amounts of nickel, titanium and others which are not adequate for surgical implants and prosthesis. In the work reported here, two types of nonostructured multilayer coatings (TiN/ZrN, ZrN/Zr) used to prevent the ions release from shape memory alloys were investigated. For comparison, the TiN and ZrN monolayers were also examined. The films were deposited onto nickel-titanium based alloy (Ti-Ni-Nb) and Ni substrates by vacuum arc deposition technique under various deposition conditions. The concentrations of dissolved ions in Ringer solution for uncoated and coated Ni samples were determined to examine the benefic barrier effect of these coatings for ions release from shape memory alloys. In order to have a more complete characterization of the investigated coatings, other properties such as elemental and phase composition, morphology, texture, microhardness, and adhesion were studied. For all coatings, the concentrations of dissolved ions were lower that those measured in the case of the uncoated specimens. The nanostructured multilayer films exhibited the best mechanical and anticorrosive properties.
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Affiliation(s)
- A Vladescu
- National Institute for Optoelectronics-Tehnoprof Research Centre, Bucharest, 077125, Romania
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Vladescu A, Kiss A, Popescu A, Braic M, Balaceanu M, Braic V, Tudor I, Logofatu C, Negrila CC, Rapeanu R. Influence of bilayer period on the characteristics of nanometre-scale ZrN/TiAIN multilayers. J Nanosci Nanotechnol 2008; 8:717-721. [PMID: 18464396 DOI: 10.1166/jnn.2008.d218] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
In the last decade, considerable research effort was directed to the deposition of multilayer films with layer thicknesses in the nanometer range (superlattice coatings), in order to increase the performance of various cutting tools and machine parts. The goal of the present work was to investigate the main microstructural, mechanical and wear resistance characteristics of a superlattice coating, consisting of alternate multilayer ZrN/TiAIN films, with various bilayer periods (5 / 20 nm). The coatings were deposited by the cathodic arc method on Si, plain carbon steel and high speed steel substrates to be used as wear resistance surfaces. The multilayer structures were prepared by using shutters placed in front of each cathode (Zr and Ti+Al). The characteristics of multilayer structures (elemental and phase composition, texture, Vickers microhardness, thickness, adhesion, and wear resistance) were determined by using various techniques (AES, XPS, XRD, microhardness measurements, scratch, and tribological tests). A comparison with the properties of ZrN and TiAIN single-layer coatings was carried out.
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Affiliation(s)
- A Vladescu
- National Institute for Optoelectronics-Tehnoprof Research Centre, Bucharest 077125, Romania
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