Determination of structural, mechanical and corrosion properties of Nb2O5 and (NbyCu1−y)Ox thin films deposited on Ti6Al4V alloy substrates for dental implant applications

Mazur, М.; Kalisz, M.; Wojcieszak, Damian; Grobelny, M.; Mazur, Piotr; Kaczmarek, Danuta; Domaradzki, J.

doi:10.1016/j.msec.2014.11.047

Cited by 46 publications

(37 citation statements)

References 52 publications

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“…In this study, tantalum (Ta) films were deposited on SLA titanium surfaces to obtain bifunctional bone‐implant interfaces. Unlike other coating techniques, the magnetron sputtering method would create high bonding strengths between the modified layer and substrate and concern over delamination could be minimized . Indeed, no obvious Ta release was observed, confirming the robustness of Ta‐modified surfaces perhaps arising from the stable Ta 2 O 5 .…”

Section: Discussionmentioning

confidence: 88%

Bacterial and mammalian cells adhesion to tantalum‐decorated micro‐/nano‐structured titanium

Zhu

Qiao

et al. 2016

J Biomedical Materials Res

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Microorganisms are frequently introduced to dental implants during surgery and start the race for the surface with host cells before osseointegration occurs. The aim of the study was to endow implant surfaces with biological functions that reliably select cells over microbes. Nano-structured tantalum (Ta) has exhibited excellent compatibility. Thus, nano-structured Ta films were deposited on the sand-blasted, large grit, and acid-etched (SLA) titanium by the magnetron sputtering method, thus forming hierarchical micro-/nano-structured surfaces. No obvious Ta release confirmed the robustness of the deposited layer probably arising from the stable Ta O . Moreover, Ta-modified surfaces not only improved the initial adhesion and spreading of rat bone mesenchymal stem cells (rBMSCs), but also exhibited good antibacterial activities towards Streptococcus mutans and Porphyromonas gingivalis. The satisfactory cell-surface interactions on Ta-modified surfaces depended largely on the up-regulation of adhesion-related genes and activation of focal adhesion kinase (FAK), as confirmed by real-time PCR and Western blot. Here, the coculture model was also forwarded to mimic the perioperative bacterial contamination. We found that the adherent cell number and the cell-surface coverage were hampered by bacteria presence on both surfaces. Yet, rBMSCs still attached and spread more readily on Ta-modified surfaces than on SLA titanium surfaces even in coculture with adhering oral pathogens. Our results revealed that Ta-modified micro-/nano-structured surfaces would selectively promote cell-surface rather than bacteria-surface interactions, boding well for the applications for dental implants in possibly infected environments. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 871-878, 2017.

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Section: Discussionmentioning

confidence: 88%

Bacterial and mammalian cells adhesion to tantalum‐decorated micro‐/nano‐structured titanium

Zhu

Qiao

et al. 2016

J Biomedical Materials Res

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“…The NTP treatment applied in the present study showed no phase transformation and was considered amorphous. The amorphous nature of the deposited thin film is a result of the low temperature of the deposition process [32], so that no thermal stress on the Ti material was created. Thus, the NTP treatment is assumed to not induce a corrosion process on the Ti material because thermal fluctuations also play a role in this process [33,34].…”

Section: Surface Characterizationmentioning

confidence: 99%

Effect of nonthermal plasma treatment on surface chemistry of commercially-pure titanium and shear bond strength to autopolymerizing acrylic resin

Filho

Marques

Santos

et al. 2016

Materials Science and Engineering: C

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The effect of nonthermal plasma on the surface characteristics of commercially pure titanium (cp-Ti), and on the shear bond strength between an autopolymerizing acrylic resin and cp-Ti was investigated. A total of 96 discs of cp-Ti were distributed into four groups (n=24): Po (no surface treatment), SB (sandblasting), Po+NTP and SB+NTP (methane plasma). Surface characterization was performed through surface energy, surface roughness, scanning microscopy, energy dispersive spectroscopy, and X-ray diffraction tests. Shear bond strength test was conducted immediately and after thermocycling. Surface treatment affected the surface energy and roughness of cp-Ti discs (P<.001). SEM-EDS showed the presence of the carbide thin film. XRD spectra revealed no crystalline phase changes. The SB+NTP group showed the highest bond strength values (6.76±0.70 MPa). Thermocycling reduced the bond strength of the acrylic resin/cp-Ti interface (P<.05), except for Po group. NTP is an effective treatment option for improving the shear bond strength between both materials.

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“…Niobium pentoxide (Nb 2 O 5 ) is considered biocompatible [10] . The titanium alloy coated with Nb 2 O 5 by using a sol–gel technique can significantly improve its biocompatibility, bioactivity and corrosion resistance [14] , [15] . It has been reported that particulate-reinforced titanium metal matrix composites using metal oxides as reinforcements, such as TiO 2 , SiO 2 , ZrO 2 and SrO, show promising mechanical properties and excellent biocompatibility for orthopedic implant materials [16] , [17] , [18] .…”

Section: Introductionmentioning

confidence: 99%

Titanium-niobium pentoxide composites for biomedical applications

Munir

Lin

et al. 2016

Bioactive Materials

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The strength of titanium scaffolds with the introduction of high porosity decreases dramatically and may become inadequate for load bearing in biomedical applications. To simultaneously meet the requirements of biocompatibility, low elastic modulus and appropriate strength for orthopedic implant materials, it is highly desirable to develop new biocompatible titanium based materials with enhanced strength. In this study, we developed a niobium pentoxide (Nb2O5) reinforced titanium composite via powder metallurgy for biomedical applications. The strength of the Nb2O5 reinforced titanium composites (Ti-Nb2O5) is significantly higher than that of pure titanium. Cell culture results revealed that the Ti-Nb2O5 composite exhibits excellent biocompatibility and cell adhesion. Human osteoblast-like cells grew and spread healthily on the surface of the Ti-Nb2O5 composite. Our study demonstrated that Nb2O5 reinforced titanium composite is a promising implant material by virtue of its high mechanical strength and excellent biocompatibility.

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Determination of structural, mechanical and corrosion properties of Nb2O5 and (NbyCu1−y)Ox thin films deposited on Ti6Al4V alloy substrates for dental implant applications

Cited by 46 publications

References 52 publications

Bacterial and mammalian cells adhesion to tantalum‐decorated micro‐/nano‐structured titanium

Bacterial and mammalian cells adhesion to tantalum‐decorated micro‐/nano‐structured titanium

Effect of nonthermal plasma treatment on surface chemistry of commercially-pure titanium and shear bond strength to autopolymerizing acrylic resin

Titanium-niobium pentoxide composites for biomedical applications

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