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He M, Chen X, Cheng K, Dong L, Weng W, Wang H. Enhanced cellular osteogenic differentiation on Zn-containing bioglass incorporated TiO 2 nanorod films. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2018; 29:136. [PMID: 30120587 DOI: 10.1007/s10856-018-6141-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Accepted: 07/30/2018] [Indexed: 06/08/2023]
Abstract
Surface nanotopography and bioactive ions have been considered to play critical roles on the interactions of biomaterials with cells. In this study, a TiO2 nanorod film incorporated with Zn-containing bioactive glass (TiO2/Zn-BG) was prepared on tantalum substrate, trying to evaluate the synergistic effects of nanotopograpgy and bioactive ions to promote cellular osteogenic differentiation activity. The expression of osteogenic-related genes, ALP as well as the ECM mineralization on TiO2/Zn-BG film were significantly upregulated compared to that of the film without TiO2 nanorod nanostructure (Zn-BG) or without Zn (TiO2/BG). Moreover, a much low Zn2+ release level on TiO2/Zn-BG film was beneficial to promote the osteogenesis, which could be ascribed to that a semi-closed space established by TiO2 nanorods with adhered cells provided an appropriate micro-environment that facilitated Zn2+ adsorption.
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Affiliation(s)
- Meng He
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou, 310027, China
| | - Xiaoyi Chen
- The Affiliated Stomatology Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Kui Cheng
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou, 310027, China
| | - Lingqing Dong
- The Affiliated Stomatology Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Wenjian Weng
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou, 310027, China.
| | - Huiming Wang
- The Affiliated Stomatology Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China.
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Sörensen JH, Dürselen L, Welch K, Sörensen TC, Procter P, Engqvist H, Strømme M, Ignatius A, Steckel H. Biomimetic Hydroxyapatite Coated Titanium Screws Demonstrate Rapid Implant Stabilization and Safe Removal <i>In-Vivo</i>. ACTA ACUST UNITED AC 2015. [DOI: 10.4236/jbnb.2015.61003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Frank MJ, Walter MS, Rubert M, Thiede B, Monjo M, Reseland JE, Haugen HJ, Lyngstadaas SP. Cathodic Polarization Coats Titanium Based Implant Materials with Enamel Matrix Derivate (EMD). MATERIALS 2014; 7:2210-2228. [PMID: 28788564 PMCID: PMC5453263 DOI: 10.3390/ma7032210] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 03/05/2014] [Accepted: 03/10/2014] [Indexed: 01/09/2023]
Abstract
The idea of a bioactive surface coating that enhances bone healing and bone growth is a strong focus of on-going research for bone implant materials. Enamel matrix derivate (EMD) is well documented to support bone regeneration and activates growth of mesenchymal tissues. Thus, it is a prime candidate for coating of existing implant surfaces. The aim of this study was to show that cathodic polarization can be used for coating commercially available implant surfaces with an immobilized but functional and bio-available surface layer of EMD. After coating, XPS revealed EMD-related bindings on the surface while SIMS showed incorporation of EMD into the surface. The hydride layer of the original surface could be activated for coating in an integrated one-step process that did not require any pre-treatment of the surface. SEM images showed nano-spheres and nano-rods on coated surfaces that were EMD-related. Moreover, the surface roughness remained unchanged after coating, as it was shown by optical profilometry. The mass peaks observed in the matrix-assisted laser desorption/ionization time-of-flight mass spectroscopy (MALDI-TOF MS) analysis confirmed the integrity of EMD after coating. Assessment of the bioavailability suggested that the modified surfaces were active for osteoblast like MC3M3-E1 cells in showing enhanced Coll-1 gene expression and ALP activity.
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Affiliation(s)
- Matthias J Frank
- Department of Biomaterials, Institute for Clinical Dentistry, University of Oslo, P.O. Box 1109 Blindern, Oslo NO-0317, Norway.
- Institute of Medical and Polymer Engineering, Technische Universität München, Boltzmannstrasse 15, Garching 85748, Germany.
| | - Martin S Walter
- Department of Biomaterials, Institute for Clinical Dentistry, University of Oslo, P.O. Box 1109 Blindern, Oslo NO-0317, Norway.
- Institute of Medical and Polymer Engineering, Technische Universität München, Boltzmannstrasse 15, Garching 85748, Germany.
| | - Marina Rubert
- Department of Fundamental Biology and Health Sciences, Research Institute on Health Sciences (IUNICS), University of Balearic Islands, Palma de Mallorca ES-07122, Spain.
| | - Bernd Thiede
- The Biotechnology Centre of Oslo, University of Oslo, P.O. Box 1125 Blindern, Oslo NO-0317, Norway.
| | - Marta Monjo
- Department of Biomaterials, Institute for Clinical Dentistry, University of Oslo, P.O. Box 1109 Blindern, Oslo NO-0317, Norway.
- Department of Fundamental Biology and Health Sciences, Research Institute on Health Sciences (IUNICS), University of Balearic Islands, Palma de Mallorca ES-07122, Spain.
| | - Janne E Reseland
- Department of Biomaterials, Institute for Clinical Dentistry, University of Oslo, P.O. Box 1109 Blindern, Oslo NO-0317, Norway.
| | - Håvard J Haugen
- Department of Biomaterials, Institute for Clinical Dentistry, University of Oslo, P.O. Box 1109 Blindern, Oslo NO-0317, Norway.
| | - Ståle Petter Lyngstadaas
- Department of Biomaterials, Institute for Clinical Dentistry, University of Oslo, P.O. Box 1109 Blindern, Oslo NO-0317, Norway.
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Sörensen JH, Lilja M, Sörensen TC, Åstrand M, Procter P, Fuchs S, Strømme M, Steckel H. Biomechanical and antibacterial properties of Tobramycin loaded hydroxyapatite coated fixation pins. J Biomed Mater Res B Appl Biomater 2014; 102:1381-92. [PMID: 24677812 DOI: 10.1002/jbm.b.33117] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Revised: 01/06/2014] [Accepted: 01/11/2014] [Indexed: 11/09/2022]
Abstract
The present study investigates the use of nanoporous, biomimetic hydroxyapatite (HA) coatings deposited on TiO₂ coated fixation pins as functional implant surfaces for the local release of Tobramycin in order to prevent bacterial colonization. The impact of HA-coating thickness, coating morphology and biomechanical forces during insertion into synthetic bone on the drug loading and release properties are analyzed. The coatings are shown to exhibit bactericidal effects against Staphylococcus aureus in agar medium for a duration of 6 days after loading by adsorption with Tobramycin for only 5 min at elevated temperature and pressure. Furthermore, high performance liquid chromatography analysis shows a drug release in phosphate buffered saline for 8 days with antibiotic concentration remaining above the minimal inhibitory concentration for S. aureus during the entire release period. Biomechanical insertion tests into synthetic bone and conventional scratch testing demonstrate adhesive strength at the HA/TiO₂ interface. Biocompatibility is verified by cell viability tests. Outgrowth endothelial cells, as well as primary osteoblasts, are viable and firmly attached to both HA and TiO₂ surfaces. The results presented are encouraging and support the concept of functional HA coatings as local drug delivery vehicles for biomedical applications to treat as well as to prevent post-surgical infections.
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Affiliation(s)
- Jan Henrik Sörensen
- Department of Pharmaceutics and Biopharmaceutics, Christian Albrecht University Kiel, 24118, Kiel, Germany
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Surmenev RA, Surmeneva MA, Ivanova AA. Significance of calcium phosphate coatings for the enhancement of new bone osteogenesis--a review. Acta Biomater 2014; 10:557-79. [PMID: 24211734 DOI: 10.1016/j.actbio.2013.10.036] [Citation(s) in RCA: 319] [Impact Index Per Article: 31.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 10/25/2013] [Accepted: 10/29/2013] [Indexed: 12/15/2022]
Abstract
A systematic analysis of results available from in vitro, in vivo and clinical trials on the effects of biocompatible calcium phosphate (CaP) coatings is presented. An overview of the most frequently used methods to prepare CaP-based coatings was conducted. Dense, homogeneous, highly adherent and biocompatible CaP or hybrid organic/inorganic CaP coatings with tailored properties can be deposited. It has been demonstrated that CaP coatings have a significant effect on the bone regeneration process. In vitro experiments using different cells (e.g. SaOS-2, human mesenchymal stem cells and osteoblast-like cells) have revealed that CaP coatings enhance cellular adhesion, proliferation and differentiation to promote bone regeneration. However, in vivo, the exact mechanism of osteogenesis in response to CaP coatings is unclear; indeed, there are conflicting reports of the effectiveness of CaP coatings, with results ranging from highly effective to no significant or even negative effects. This review therefore highlights progress in CaP coatings for orthopaedic implants and discusses the future research and use of these devices. Currently, an exciting area of research is in bioactive hybrid composite CaP-based coatings containing both inorganic (CaP coating) and organic (collagen, bone morphogenetic proteins, arginylglycylaspartic acid etc.) components with the aim of promoting tissue ingrowth and vascularization. Further investigations are necessary to reveal the relative influences of implant design, surgical procedure, and coating characteristics (thickness, structure, topography, porosity, wettability etc.) on the long-term clinical effects of hybrid CaP coatings. In addition to commercially available plasma spraying, other effective routes for the fabrication of hybrid CaP coatings for clinical use still need to be determined and current progress is discussed.
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Affiliation(s)
- Roman A Surmenev
- Department of Theoretical and Experimental Physics, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia; Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, 70569 Stuttgart, Germany.
| | - Maria A Surmeneva
- Department of Theoretical and Experimental Physics, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - Anna A Ivanova
- Department of Theoretical and Experimental Physics, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
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Cai Y, Strømme M, Zhang P, Engqvist H, Welch K. Photocatalysis induces bioactivity of an organic polymer based material. RSC Adv 2014. [DOI: 10.1039/c4ra08805k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Bioactivity of resin–TiO2 nanocomposite induced by TiO2 photocatalysis under UV irradiation.
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Affiliation(s)
- Yanling Cai
- Nanotechnology and Functional Materials
- The Ångström Laboratory
- Uppsala University
- Uppsala, Sweden
| | - Maria Strømme
- Nanotechnology and Functional Materials
- The Ångström Laboratory
- Uppsala University
- Uppsala, Sweden
| | - Peng Zhang
- Nanotechnology and Functional Materials
- The Ångström Laboratory
- Uppsala University
- Uppsala, Sweden
| | - Håkan Engqvist
- Applied Materials Science
- The Ångström Laboratory
- Uppsala University
- Uppsala, Sweden
| | - Ken Welch
- Nanotechnology and Functional Materials
- The Ångström Laboratory
- Uppsala University
- Uppsala, Sweden
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Abstract
Advanced precise and accurate nanomeasurement techniques play an important role to improve the function and quality of surface characterization. There are two basic approaches, the hard measuring techniques and the soft computing measuring techniques. The advanced soft measuring techniques include coordinate measuring machines, roundness testing facilities, surface roughness, interferometric methods, confocal optical microscopy, scanning probe microscopy, and computed tomography at the level of nanometer scale. On the other hand, a new technical committee in ISO is established to address characterization issues posed by the areal surface texture and measurement methods. This paper reviews the major advanced soft metrology techniques obtained by optical, tactile, and other means using instruments, classification schemes of them, and their applications in the engineering surfaces. Furthermore, future trends under development in this area are presented and discussed to display proposed solutions for the important issues that need to be addressed scientifically.
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Affiliation(s)
- Salah H. R. Ali
- Engineering and Surface Metrology Department, Length and Precision Engineering Division, National Institute for Standards (NIS), Giza 12211-136, Egypt
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Photocatalytic and antimicrobial properties of surgical implant coatings of titanium dioxide deposited though cathodic arc evaporation. Biotechnol Lett 2012; 34:2299-305. [PMID: 22941372 DOI: 10.1007/s10529-012-1040-2] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Accepted: 08/14/2012] [Indexed: 10/27/2022]
Abstract
UNLABELLED Nanostructured crystalline titanium dioxide coatings deposited by cathodic arc evaporated on titanium grade five medical implant substrates were demonstrated to exhibit UV-induced photocatalytic activity that can be utilized to provide bactericidal effects against Staphylococcus epidermidis. The photocatalytic activity of the coatings was confirmed via degradation of Rhodamine B under UV illumination. A 90 % reduction of viable bacteria was achieved in a clinically suitable time of only 2 min with a UV dose of 2.4 J delivered at 365 nm. These results are encouraging for the development of antimicrobial surfaces in orthopedics and dentistry in order to prevent or treat post-surgical infections. PURPOSE OF WORK To assess the possibility of employing photocatalysis for elimination of S. epidermidis, known to cause medical device related infections, under short enough times to be clinically useful on an implant surface produced with a technique that is suitable for mass production.
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Lilja M, Welch K, Åstrand M, Engqvist H, Strømme M. Effect of deposition parameters on the photocatalytic activity and bioactivity of TiO2 thin films deposited by vacuum arc on Ti-6Al-4V substrates. J Biomed Mater Res B Appl Biomater 2012; 100:1078-85. [DOI: 10.1002/jbm.b.32674] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2011] [Revised: 12/01/2011] [Accepted: 12/03/2011] [Indexed: 11/09/2022]
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