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Template Electrochemical Synthesis of Hydroxyapatite on a Titania–Silver Composite Surface for Potential Use in Implantology. COATINGS 2022. [DOI: 10.3390/coatings12020266] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Modern materials science, both in terms of functional and structural materials, is actively developing towards the creation of structures with a given ordering. A wide range of methods involves ordering the structure according to a template shape. Template synthesis is one of the mots wide-spread approaches. Most often, the template synthesis method is implemented under conditions of limiting the growth of the phase due to the geometry of the template. In the present work, a template electrochemical method is considered for calcium hydroxyapatite (HAp) coating synthesis, based on the replication of the planar template texture during deposition. In this case, the template is an array of silver microparticles immobilized on an electrically conductive substrate, separated by an insulator layer. The developed approach is similar to the mask metallization widely used in planar technology. In this work, the possibility of the template pulsed electrodeposition of ceramics rather than metal is shown using HAp as an example. This approach is interesting for materials science, in particular, for obtaining micro-ordered hydroxyapatite structures—a crystallochemical analogue of the inorganic bone tissue component—on the surface of bone implants, which can be implemented to improve their biomedical characteristics. As a result of our study, we experimentally determined the conditions for obtaining the composite coating TiO2/Ag/Ca10(PO4)6(OH)2 with controlled phase structure, topology and localization of components on the surface, which was confirmed by Scanning Electron Microscopy, Energy Dispersive Spectroscopy, and X-ray Diffraction (SEM, EDS and XRD). The absence of cytotoxicity for the osteoblast-like cells of the developed coating was revealed by cytological tests.
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Arbenin AY, Zemtsova EG, Orekhov EV, Sokolova DN, Baburova PI, Petrov AA, Gaǐshun VE, Smirnov VM. Features of Fabrication of Titanium Dioxide Based Coatings for Non-Lithographic Template Electrochemical Synthesis of Micron Metal Particle Arrays. Gels 2021; 7:gels7040202. [PMID: 34842685 PMCID: PMC8628743 DOI: 10.3390/gels7040202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/02/2021] [Accepted: 11/04/2021] [Indexed: 12/05/2022] Open
Abstract
This work is devoted to the development of non-lithographic template methods of synthesis. These methods have a significant advantage in terms of structure formation: there is no need to design and produce masks, which greatly simplifies the process, and more of them can work with nonplanar substrates. The purpose of this study was to reveal the conditions for the synthesis of titanium dioxide xerogel films of different topologies as well as to develop a technique for non-lithographic template electrochemical synthesis of micron metal particles arrays and to study the structure of the resulting coatings. The films were deposited on the surface of substrates via dip coating. Specific topology of the films was achieved by template sol-gel synthesis. Their structures were analyzed by SEM and XRD. Template synthesis of metal micro particles were realized by pulsed electrochemical deposition of metals into the perforations of xerogel films. Obtained materials were analyzed by SEM and XRD; the element distribution on the surface was determined by the EDS detector of SEM. Based on the analysis results, we suggest the mechanisms of formation of the xerogel topology and proved the efficiency of pulsed electrodeposition for template synthesis of micron particles arrays.
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Affiliation(s)
- Andrey Yu Arbenin
- St. Petersburg State University, 7/9 Universitetskaya nab., 199034 Saint Petersburg, Russia; (E.G.Z.); (E.V.O.); (D.N.S.); (P.I.B.); (A.A.P.); (V.M.S.)
- Correspondence:
| | - Elena G. Zemtsova
- St. Petersburg State University, 7/9 Universitetskaya nab., 199034 Saint Petersburg, Russia; (E.G.Z.); (E.V.O.); (D.N.S.); (P.I.B.); (A.A.P.); (V.M.S.)
| | - Evgeniy V. Orekhov
- St. Petersburg State University, 7/9 Universitetskaya nab., 199034 Saint Petersburg, Russia; (E.G.Z.); (E.V.O.); (D.N.S.); (P.I.B.); (A.A.P.); (V.M.S.)
| | - Daria N. Sokolova
- St. Petersburg State University, 7/9 Universitetskaya nab., 199034 Saint Petersburg, Russia; (E.G.Z.); (E.V.O.); (D.N.S.); (P.I.B.); (A.A.P.); (V.M.S.)
| | - Polina I. Baburova
- St. Petersburg State University, 7/9 Universitetskaya nab., 199034 Saint Petersburg, Russia; (E.G.Z.); (E.V.O.); (D.N.S.); (P.I.B.); (A.A.P.); (V.M.S.)
| | - Alexey A. Petrov
- St. Petersburg State University, 7/9 Universitetskaya nab., 199034 Saint Petersburg, Russia; (E.G.Z.); (E.V.O.); (D.N.S.); (P.I.B.); (A.A.P.); (V.M.S.)
| | - Vladimir E. Gaǐshun
- Francisk Skarina Gomel State University, 104 Sovetskaya Str., 246019 Gomel, Belarus;
| | - Vladimir M. Smirnov
- St. Petersburg State University, 7/9 Universitetskaya nab., 199034 Saint Petersburg, Russia; (E.G.Z.); (E.V.O.); (D.N.S.); (P.I.B.); (A.A.P.); (V.M.S.)
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Shevtsov M, Gavrilov D, Yudintceva N, Zemtsova E, Arbenin A, Smirnov V, Voronkina I, Adamova P, Blinova M, Mikhailova N, Galibin O, Akkaoui M, Pitkin M. Protecting the skin-implant interface with transcutaneous silver-coated skin-and-bone-integrated pylon in pig and rabbit dorsum models. J Biomed Mater Res B Appl Biomater 2020; 109:584-595. [PMID: 32935912 DOI: 10.1002/jbm.b.34725] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 07/20/2020] [Accepted: 09/02/2020] [Indexed: 12/12/2022]
Abstract
Implant-associated soft tissue infections at the skin-implant interface represent the most frequent complications in reconstructive surgery and lead to implant failures and revisions. Titanium implants with deep porosity, called skin-and-bone-integrated-pylons (SBIP), allow for skin ingrowth in the morphologically natural direction, thus restoring a reliable dermal barrier and reducing the risk of infection. Silver coating of the SBIP implant surface using physical vapor deposition technique offers the possibility of preventing biofilm formation and exerting a direct antimicrobial effect during the wound healing phase. In vivo studies employing pig and rabbit dorsum models for assessment of skin ingrowth into the pores of the pylon demonstrated the safety of transcutaneous implantation of the SBIP system. No postoperative complications were reported at the end of the follow-up period of 6 months. Histological analysis proved skin ingrowth in the minipig model without signs of silver toxicity. Analysis of silver release (using energy dispersive X-ray spectroscopy) in the model of intramedullary-inserted silver-coated SBIP in New Zealand rabbits demonstrated trace amounts of silver after 3 months of in-bone implantation. In conclusion, selected temporary silver coating of the SBIP implant surface is powerful at preventing the periprosthetic infections without imparing skin ingrowth and can be considered for clinical application.
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Affiliation(s)
- Maxim Shevtsov
- Department of Radiation Immuno-Oncology, Center for Translational Cancer Research Technische Universität München (TranslaTUM), Klinikum Rechts der Isar, Munich, Germany.,Center of Cell Technologies, Institute of Cytology of the Russian Academy of Sciences (RAS), St. Petersburg, Russia.,Department of Biotechnology, First Pavlov State Medical University of St.Petersburg, St. Petersburg, Russia.,Department of Pediatric Neurosurgery, Almazov National Medical Research Centre, Russian Polenov Neurosurgical Institute, St. Petersburg, Russia.,Laboratory of Biomedical Cell Technologies, Far Eastern Federal University, Vladivostok, Russia
| | - Dmitriy Gavrilov
- Federal State Budgetary Institution "Federal Scientific Center of Rehabilitation of the Disabled named after G.A. Albrecht" of the Ministry of Labour and Social Protection of the Russian Federation, St. Petersburg, Russia
| | - Natalia Yudintceva
- Center of Cell Technologies, Institute of Cytology of the Russian Academy of Sciences (RAS), St. Petersburg, Russia
| | - Elena Zemtsova
- Department of Solid State Chemistry, Saint Petersburg State University, St. Petersburg, Russia
| | - Andrei Arbenin
- Department of Solid State Chemistry, Saint Petersburg State University, St. Petersburg, Russia
| | - Vladimir Smirnov
- Department of Solid State Chemistry, Saint Petersburg State University, St. Petersburg, Russia
| | | | - Polina Adamova
- Institute of Experimental Medicine, St. Petersburg, Russia
| | - Miralda Blinova
- Center of Cell Technologies, Institute of Cytology of the Russian Academy of Sciences (RAS), St. Petersburg, Russia
| | - Nataliya Mikhailova
- Center of Cell Technologies, Institute of Cytology of the Russian Academy of Sciences (RAS), St. Petersburg, Russia
| | - Oleg Galibin
- Department of Biotechnology, First Pavlov State Medical University of St.Petersburg, St. Petersburg, Russia
| | | | - Mark Pitkin
- Tufts University, Boston, Massachusetts, USA.,Poly-Orth International, Sharon, Massachusetts, USA
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Nazarov DV, Smirnov VM, Zemtsova EG, Yudintceva NM, Shevtsov MA, Valiev RZ. Enhanced Osseointegrative Properties of Ultra-Fine-Grained Titanium Implants Modified by Chemical Etching and Atomic Layer Deposition. ACS Biomater Sci Eng 2018; 4:3268-3281. [DOI: 10.1021/acsbiomaterials.8b00342] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Denis V. Nazarov
- Saint Petersburg State University, 7/9 Universitetskaya nab., Saint Petersburg 199034, Russia
- National Technology Initiative Center of Excellence in Advanced Manufacturing Technologies at Peter the Great St. Petersburg Polytechnic University, Politekhnicheskaya 29/1 str., Saint Petersburg 195251, Russia
| | - Vladimir M. Smirnov
- Saint Petersburg State University, 7/9 Universitetskaya nab., Saint Petersburg 199034, Russia
| | - Elena G. Zemtsova
- Saint Petersburg State University, 7/9 Universitetskaya nab., Saint Petersburg 199034, Russia
| | - Natalia M. Yudintceva
- Institute of Cytology of the Russian Academy of Sciences (RAS), Tikhoretsky ave. 4, Saint Petersburg 194064, Russia
| | - Maxim A. Shevtsov
- Institute of Cytology of the Russian Academy of Sciences (RAS), Tikhoretsky ave. 4, Saint Petersburg 194064, Russia
- First Pavlov State Medical University of St. Petersburg, Lva Tolstogo str. 6-8, Saint Petersburg 197022, Russia
- Department of Radiation Oncology, Klinikum rechts der Isar, Technische Universität München, Ismaniger Str. 22, 81675 Munich, Germany
| | - Ruslan Z. Valiev
- Saint Petersburg State University, 7/9 Universitetskaya nab., Saint Petersburg 199034, Russia
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