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Surface Properties of Ti6Al7Nb Alloy: Surface Free Energy and Bacteria Adhesion. J Funct Biomater 2022; 13:jfb13010026. [PMID: 35323226 PMCID: PMC8954169 DOI: 10.3390/jfb13010026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 02/28/2022] [Accepted: 03/04/2022] [Indexed: 11/30/2022] Open
Abstract
The laser micro-machining was carried out on a station equipped with a TruMicro 5325c laser emitting ultraviolet radiation (343 nm wavelength) in picosecond pulses. On the surface of the Ti6Al7Nb alloy, dimple texturing with a constant diameter of ~200 μm, different depths (from ~5 to ~78 μm) and density (from 10% to 50%) were produced. The value of surface free energy was determined with the Owens–Wendt method using two measuring liquids: distilled water and diodomethane. The Staphylococcus epidermidis strain was used to test the adhesion of bacteria. It was found that the surface free energy value is influenced by both of the texture parameters (density, depth). The density also affects the potential for biofilm formation. Based on the analysis, it was shown that with an increase in surface free energy, the number of adhering microorganisms increases exponentially. Moreover, the study shows that there is a correlation between the number of adhering microorganisms and surface free energy.
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2
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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] [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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3
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Lin N, Li D, Zou J, Xie R, Wang Z, Tang B. Surface Texture-Based Surface Treatments on Ti6Al4V Titanium Alloys for Tribological and Biological Applications: A Mini Review. MATERIALS 2018; 11:ma11040487. [PMID: 29587358 PMCID: PMC5951333 DOI: 10.3390/ma11040487] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 03/19/2018] [Accepted: 03/23/2018] [Indexed: 02/07/2023]
Abstract
Surface texture (ST) has been confirmed as an effective and economical surface treatment technique that can be applied to a great range of materials and presents growing interests in various engineering fields. Ti6Al4V which is the most frequently and successfully used titanium alloy has long been restricted in tribological-related operations due to the shortcomings of low surface hardness, high friction coefficient, and poor abrasive wear resistance. Ti6Al4V has benefited from surface texture-based surface treatments over the last decade. This review begins with a brief introduction, analysis approaches, and processing methods of surface texture. The specific applications of the surface texture-based surface treatments for improving surface performance of Ti6Al4V are thoroughly reviewed from the point of view of tribology and biology.
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Affiliation(s)
- Naiming Lin
- Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China.
- Shanxi Key Laboratory of Material Strength and Structure Impact, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China.
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada.
| | - Dali Li
- Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China.
| | - Jiaojuan Zou
- Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China.
| | - Ruizhen Xie
- Department of Civil Engineering, Taiyuan University of Technology, Taiyuan, 030024, Shanxi, China.
| | - Zhihua Wang
- Shanxi Key Laboratory of Material Strength and Structure Impact, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China.
| | - Bin Tang
- Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China.
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Sharan J, Koul V, Dinda AK, Kharbanda OP, Lale SV, Duggal R, Mishra M, Gupta G, Singh MP. Bio-functionalization of grade V titanium alloy with type I human collagen for enhancing and promoting human periodontal fibroblast cell adhesion - an in-vitro study. Colloids Surf B Biointerfaces 2017; 161:1-9. [PMID: 29035745 DOI: 10.1016/j.colsurfb.2017.10.024] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 10/05/2017] [Accepted: 10/06/2017] [Indexed: 11/26/2022]
Abstract
Surface modification of medical grade V titanium alloy (Ti-6Al-4V) with biomolecules is an important and vital step for tailoring it for various biomedical applications. Present study investigates theinfluence of type I human collagen (T1HC) bio-conjugation through a three stage process. Polished grade V titanium alloy discs were functionalizedwith free OH group by means of controlled heat and alkali treatment followed by coating of 3-aminopropyltriethoxy (APTES) silane couplingagent. T1HC were bio-conjugated through 1-ethyl-3-(3-dimethyl aminopropyl) carbodiimide hydrochloride N-hydroxysuccinimide (EDCNHS)coupling reaction. At each stage, grade V titanium alloy surfaces were characterized by atomic force microscopy (AFM), scanning electronmicroscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and Xrayphotoelectron spectroscopy (XPS). FTIR and XPS studies confirms thecovalent attachment of APTES with titanium alloy surface while terminalamine groups of APTES remained free for further attachment of T1HCthrough covalent bond. Aqueous stability of bio-conjugated titanium discsat various pH and time intervals (i.e. at pH of 5.5, 6.8 and 8.0 at timeinterval of 27 and 48h) confirmed the stability of T1HC bioconjugated collagen on titanium surface. Further human periodontalfibroblast cell line (HPdlF) culture revealed enhanced adhesion on theT1HC bio-conjugated surface compared to the polystyrene and polishedgrade V titanium alloy surfaces.
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Affiliation(s)
- Jitendra Sharan
- Divison of Orthodontics and Dentofacial Deformities, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Veena Koul
- Centre for Biomedical Engineering, Indian Institute of Technology, Hauz Khas, New Delhi 110016, India; Department of Biomedical Engineering, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Amit K Dinda
- Department of Pathology, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Om P Kharbanda
- Divison of Orthodontics and Dentofacial Deformities, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi 110029, India.
| | - Shantanu V Lale
- Department of Chemical Engineering, Texas Tech University, Lubbock, TX 79409, USA
| | - Ritu Duggal
- Divison of Orthodontics and Dentofacial Deformities, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Monu Mishra
- Physics of Energy Harvesting, CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg, New Delhi 110012, India
| | - Govind Gupta
- Physics of Energy Harvesting, CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg, New Delhi 110012, India
| | - Manoj P Singh
- Advanced Instrumentation Research Facility, Jawaharlal Nehru University, New Delhi 110067, India
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5
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Hartjen P, Nada O, Silva TG, Precht C, Henningsen A, Holthaus MGRO, Gulow N, Friedrich RE, Hanken H, Heiland M, Zwahr C, Smeets R, Jung O. Cytocompatibility of Direct Laser Interference-patterned Titanium Surfaces for Implants. ACTA ACUST UNITED AC 2017; 31:849-854. [PMID: 28882950 DOI: 10.21873/invivo.11138] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 08/02/2017] [Accepted: 08/04/2017] [Indexed: 12/18/2022]
Abstract
In an effort to generate titanium surfaces for implants with improved osseointegration, we used direct laser interference patterning (DLIP) to modify the surface of pure titanium grade 4 of four different structures. We assessed in vitro cytoxicity and cell attachment, as well as the viability and proliferation of cells cultured directly on the surfaces. Attachment of the cells to the modified surfaces was comparably good compared to that of cells on grit-blasted and acid-etched reference titanium surfaces. In concordance with this, viability and proliferation of the cells directly cultured on the specimens were similar on all the titanium surfaces, regardless of the laser modification, indicating good cytocompatibility.
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Affiliation(s)
- Philip Hartjen
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ola Nada
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Thiago Gundelwein Silva
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Clarissa Precht
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Anders Henningsen
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | | | | | - Reinhard E Friedrich
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Henning Hanken
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Max Heiland
- Department of Oral and Maxillofacial Surgery, Charité University Hospital, Berlin, Germany
| | - Christoph Zwahr
- Institute of Manufacturing Technology, TU Dresden, Dresden, Germany.,Fraunhofer Institute for Material and Beam Technology, Dresden, Germany
| | - Ralf Smeets
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ole Jung
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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6
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Microstructure and corrosion behavior of laser surface-treated AZ31B Mg bio-implant material. Lasers Med Sci 2017; 32:797-803. [DOI: 10.1007/s10103-017-2174-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 02/20/2017] [Indexed: 10/20/2022]
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7
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Effect of Hydrofluoric Acid Etching Time on Titanium Topography, Chemistry, Wettability, and Cell Adhesion. PLoS One 2016; 11:e0165296. [PMID: 27824875 PMCID: PMC5100918 DOI: 10.1371/journal.pone.0165296] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Accepted: 10/10/2016] [Indexed: 12/22/2022] Open
Abstract
Titanium implant surface etching has proven an effective method to enhance cell attachment. Despite the frequent use of hydrofluoric (HF) acid, many questions remain unresolved, including the optimal etching time and its effect on surface and biological properties. The objective of this study was to investigate the effect of HF acid etching time on Ti topography, surface chemistry, wettability, and cell adhesion. These data are useful to design improved acid treatment and obtain an improved cell response. The surface topography, chemistry, dynamic wetting, and cell adhesiveness of polished Ti surfaces were evaluated after treatment with HF acid solution for 0, 2; 3, 5, 7, or 10 min, revealing a time-dependent effect of HF acid on their topography, chemistry, and wetting. Roughness and wetting increased with longer etching time except at 10 min, when roughness increased but wetness decreased. Skewness became negative after etching and kurtosis tended to 3 with longer etching time. Highest cell adhesion was achieved after 5–7 min of etching time. Wetting and cell adhesion were reduced on the highly rough surfaces obtained after 10-min etching time.
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8
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Huang L, Goddard SC, Soundarapandian S, Cao Y, Dahotre NB, He W. MC3T3-E1 osteoblast adhesion to laser induced hydroxyapatite coating on Ti alloy. BIOMATERIALS AND BIOMECHANICS IN BIOENGINEERING 2014. [DOI: 10.12989/bme.2014.1.2.081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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9
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El hadad AA, Barranco V, Jiménez-Morales A, Hickman GJ, Galván JC, Perry CC. Triethylphosphite as a network forming agent enhances in vitro biocompatibility and corrosion protection of hybrid organic–inorganic sol–gel coatings for Ti6Al4V alloys. J Mater Chem B 2014; 2:7955-7963. [DOI: 10.1039/c4tb01175a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Introduction of phosphorous into hybrid silica sol–gel coatings on Ti6Al4V gives materials demonstrating higher levels of intermolecular condensation and fibrinogen uptake as well as improved in vitro biocompatibility and corrosion protection.
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Affiliation(s)
- A. A. El hadad
- Centro Nacional de Investigaciones Metalúrgicas (CSIC)
- Madrid, Spain
| | - V. Barranco
- Instituto de Ciencia de Materiales de Madrid (CSIC)
- Madrid, Spain
| | - A. Jiménez-Morales
- Universidad Carlos III de Madrid
- Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Química
- Leganés, Spain
| | - G. J. Hickman
- Interdisciplinary Biomedical Research Centre
- School of Science and Technology
- Nottingham Trent University
- Nottingham, UK
| | - J. C. Galván
- Centro Nacional de Investigaciones Metalúrgicas (CSIC)
- Madrid, Spain
| | - C. C. Perry
- Interdisciplinary Biomedical Research Centre
- School of Science and Technology
- Nottingham Trent University
- Nottingham, UK
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10
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Blanquer A, Pellicer E, Hynowska A, Barrios L, Ibáñez E, Baró MD, Sort J, Nogués C. In vitro biocompatibility assessment of Ti40Cu38Zr10Pd12 bulk metallic glass. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2014; 25:163-172. [PMID: 24022801 DOI: 10.1007/s10856-013-5041-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Accepted: 08/28/2013] [Indexed: 06/02/2023]
Abstract
The use of biocompatible materials has attained an increasing importance for tissue regeneration and transplantation. The excellent mechanical and corrosion properties of Ti40Cu38Zr10Pd12 bulk metallic glass (BMG) turn it into a potential candidate for its use in orthopaedic implants. Before being considered as a biomaterial, some biological parameters must be taken into account. In this study,mouse preosteoblasts were cultured in the presence or absence of the alloy at different times (24 h, 7 and 21 days) and no differences in cell viability were detected.Moreover, cells were able to adhere to the alloy surface by establishing focal contacts, and displayed a flattened polygonal morphology. After 14 days in culture, differentiation into osteoblasts was observed. Besides, the amount of Cu ions released and their potential toxic effects were analyzed, showing that the amount of Cu released did not increase cell death. Finally, the low levels of inflammatory cytokines secreted by THP-1 differentiated macrophages exposed to the alloy suggest the absence of an immunogenic response to the alloy. In conclusion, in vitro studies indicate that the Ti40Cu38Zr10Pd12 BMG could be considered as a biomaterial to be used in orthopaedic implants.
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Chen F, Zhang D, Yang Q, Yong J, Du G, Si J, Yun F, Hou X. Bioinspired wetting surface via laser microfabrication. ACS APPLIED MATERIALS & INTERFACES 2013; 5:6777-92. [PMID: 23865499 DOI: 10.1021/am401677z] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Bioinspired special wettibilities including superhydrophobicity and tunable adhesive force have drawn considerable attention because of their significant potential for fundamental research and practical applications. This review summarizes recent progress in the development of bioinspired wetting surfaces via laser microfabrication, with a focus on controllable, biomimetic, and switchable wetting surfaces, as well as their applications in biology, microfluidic, and paper-based devices, all of which demonstrate the ability of laser microfabrication in producing various multiscale structures and its adaptation in a great variety of materials. In particular, compared to other techniques, laser microfabrication can realize special modulation ranging from superhydrophilic to superhydrophobic without the assistance of fluorination, allowing much more freedom to achieve complex multiple-wettability integration. The current challenges and future research prospects of this rapidly developing field are also being discussed. These approaches open the intriguing possibility of the development of advanced interfaces equipped with the integration of more functionalities.
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Affiliation(s)
- Feng Chen
- State Key Laboratory for Manufacturing Systems Engineering & Key Laboratory of Photonics Technology for Information of Shaanxi Province, School of Electronics & Information Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
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12
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Controlled silanization–amination reactions on the Ti6Al4V surface for biomedical applications. Colloids Surf B Biointerfaces 2013; 106:248-57. [DOI: 10.1016/j.colsurfb.2013.01.034] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2012] [Revised: 01/04/2013] [Accepted: 01/10/2013] [Indexed: 11/20/2022]
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13
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Baltriukienė D, Sabaliauskas V, Balčiūnas E, Melninkaitis A, Liutkevičius E, Bukelskienė V, Rutkūnas V. The effect of laser-treated titanium surface on human gingival fibroblast behavior. J Biomed Mater Res A 2013; 102:713-20. [DOI: 10.1002/jbm.a.34739] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2013] [Revised: 03/06/2013] [Accepted: 03/20/2013] [Indexed: 11/09/2022]
Affiliation(s)
- D. Baltriukienė
- Institute of Biochemistry; Vilnius University; Vilnius Lithuania
| | - V. Sabaliauskas
- Institute of Odontology, Faculty of Medicine; Vilnius University; Vilnius Lithuania
| | - E. Balčiūnas
- Institute of Biochemistry; Vilnius University; Vilnius Lithuania
| | - A. Melninkaitis
- Department of Quantum Electronics; Vilnius University; Vilnius Lithuania
| | - E. Liutkevičius
- Faculty of Fundamental Sciences; Vilnius Gediminas Technical University; Vilnius Lithuania
| | - V. Bukelskienė
- Institute of Biochemistry; Vilnius University; Vilnius Lithuania
| | - V. Rutkūnas
- Institute of Odontology, Faculty of Medicine; Vilnius University; Vilnius Lithuania
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14
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Prodanov L, Lamers E, Wolke J, Huiberts R, Jansen JA, Walboomers XF. In vivo comparison between laser-treated and grit blasted/acid etched titanium. Clin Oral Implants Res 2013; 25:234-9. [PMID: 23346926 DOI: 10.1111/clr.12109] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/10/2012] [Indexed: 12/26/2022]
Abstract
OBJECTIVE Laser profiling of titanium has been of considerable interest in the field of oral implantology. However, very few pre-clinical and clinical studies have been performed with laser-treated implants, especially focusing on isotropic roughness topography. The aim of the study was to compare the cortical bone response of Ti-implants discs treated with pico-sec pulsed laser (LAS) and conventional grit-blasted/acid-etched (GAE) method. MATERIALS AND METHODS Prior to the in vivo experiment, in vitro cell viability testing of the LAS surface treatment was preformed. Then, 5 mm diameter Titanium (Ti) discs treated with LAS and GAE method were implanted in a pre-validated rabbit tibia cortical bone model and assessed with histology and histomorphometric measurements. In total, eight New Zealand White adult female rabbits were used. RESULTS The in vitro cell viability testing with osteoblast-like cells confirmed cytocompatibility of the LAS surface treatment. Further, the rabbit experiment demonstrated a bone-to-implant contact of 68% (±17) for the laser-treated discs and 49% (±21) for the GAE discs 8 weeks after the implantation, which was statistically not different. CONCLUSION Laser surface treatment gives the same results to the grit-blasting/acid-etched method and thus is a valid alternative to conventional roughening for dental implant materials.
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Affiliation(s)
- Ljupcho Prodanov
- Department of Biomaterials, Radboud University Nijmegen Medical Centre, Nijmegen, the Netherlands
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15
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Li S, Ni J, Liu X, Zhang X, Yin S, Rong M, Guo Z, Zhou L. Surface characteristics and biocompatibility of sandblasted and acid-etched titanium surface modified by ultraviolet irradiation: An in vitro study. J Biomed Mater Res B Appl Biomater 2012; 100:1587-98. [DOI: 10.1002/jbm.b.32727] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2011] [Revised: 03/15/2012] [Accepted: 04/04/2012] [Indexed: 01/26/2023]
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16
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Paital SR, Bunce N, Nandwana P, Honrao C, Nag S, He W, Banerjee R, Dahotre NB. Laser surface modification for synthesis of textured bioactive and biocompatible Ca-P coatings on Ti-6Al-4V. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2011; 22:1393-1406. [PMID: 21526409 DOI: 10.1007/s10856-011-4321-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2011] [Accepted: 04/07/2011] [Indexed: 05/30/2023]
Abstract
A textured calcium phosphate based bio-ceramic coating was synthesized by continuous wave Nd:YAG laser induced direct melting of hydroxyapatite precursor on Ti-6Al-4V substrate. Two different micro-textured patterns (100 μm and 200 μm line spacing) of Ca-P based phases were fabricated by this technique to understand the alignment and focal adhesion of the bone forming cells on these surfaces. X-ray diffraction studies of the coated samples indicated the presence of CaTiO₃, α-Ca₃(PO₄)₂, Ca(OH)₂, TiO₂ (anatase) and TiO₂ (rutile) phases as a result of the intermixing between the precursor and substrate material during laser processing. A two dimensional elemental mapping of the cross-section of the coated samples exhibited the presence of higher phosphorous concentration within the coating and a thin layer of calcium concentration only at the top of the coating. Improved in vitro bioactivity and in vitro biocompatibility was observed for the laser processed samples as compared to the control.
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Affiliation(s)
- Sameer R Paital
- Department of Materials Science and Engineering, University of North Texas, Denton, TX 76207, USA
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17
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Narayan RJ. The next generation of biomaterial development. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2010; 368:1831-1837. [PMID: 20308105 DOI: 10.1098/rsta.2010.0001] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Affiliation(s)
- Roger J Narayan
- Joint Department of Biomedical Engineering, University of North Carolina and North Carolina State University, Raleigh, North Carolina, USA.
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