Nanocomposite hydroxyapatite formation on a Ti–13Nb–13Zr alloy exposed in a MEM cell culture medium and the effect of H2O2 addition

Baker, M. A.; Assis, S. B.; Higa, Olga Zazuco; Costa, Isolda

doi:10.1016/j.actbio.2008.08.008

Cited by 66 publications

(33 citation statements)

References 41 publications

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“…This conclusion is also in accordance with measurements of the XPS O 1s spectra (Fig. 8), where the peak has a binding energy of approximately 530.9-531.1 eV for AMo2, BMo4, and CMo4 samples, similar to hydroxyapatite [35]. The DMo2 and EMo2 samples have the O 1s peak at 530.3-530.4 eV, which is typical for O 2− species (Fig.…”

Section: Chemical and Phase Analysis Of Selected Sample Surfacessupporting

confidence: 77%

Modification of a Ti–Mo alloy surface via plasma electrolytic oxidation in a solution containing calcium and phosphorus

Simka

Krząkała

Korotin

et al. 2013

Electrochimica Acta

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a b s t r a c tInvestigations into the surface modification of a Ti-15Mo alloy via plasma electrolytic oxidation are reported. The oxidation process was conducted in a solution containing Ca(H 2 PO 2 ) 2 , H 3 PO 4 , or (HCOO) 2 Ca. Anodisation was performed at voltages in the range of 100-400 V. The morphology of the sample surface did not change during alloy oxidation at lower voltages. Higher voltages led to the incorporation of calcium and phosphorus or of calcium only into the formed oxide layer and to significant modification of the surface morphology. Based on the SEM and EDX analysis results, a set of samples was selected for further investigations. To study the surface of the Ti-Mo alloy after anodic oxidation, we used scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), thin-layer X-ray diffraction (TL-XRD), and X-ray photoelectron spectroscopy (XPS). The electrochemical characteristics of the modified alloy in Ringer's solution were determined. Anodisation results in a considerable increase in the corrosion resistance of the Ti-15Mo alloy.

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Section: Chemical and Phase Analysis Of Selected Sample Surfacessupporting

confidence: 77%

Modification of a Ti–Mo alloy surface via plasma electrolytic oxidation in a solution containing calcium and phosphorus

Simka

Krząkała

Korotin

et al. 2013

Electrochimica Acta

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“…The chemical composition of the electropolished Ti13Nb-13Zr alloy surface (Ti/Zr/Nb=4.0:0.55:1) is similar to the composition of the alloy (Ti/Zr/Nb=5.6:1:1), but the surface is depleted in titanium and zirconium. The chemical composition of the surface oxide layer formed at 100 V (Ti/ Zr/Nb=12.6:1:1) is similar to air-formed native oxide layer on that alloy (Ti/Zr/Nb=12.7:1.2:1), which is composed mainly of TiO 2 , ZrO 2 , and Nb 2 O 5 , with a small amount of TiO and Ti 2 O 3 [30,41]. Note however that the oxidized surface is strongly depleted in both zirconium and niobium in comparison to the alloy.…”

Section: Resultsmentioning

confidence: 95%

Anodic oxidation of the Ti–13Nb–13Zr alloy

Mosiałek

Nawrat

Szyk-Warszyńska

et al. 2014

J Solid State Electrochem

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This work presents the results of the investigations on the electropolishing and anodic oxidation of the Ti-13Nb-13Zr titanium alloy. Electropolishing was conducted in the solution containing ammonium fluoride and sulfuric acid, whereas the solution of phosphoric acid was used for anodic oxidation of the alloy. The influence of electropolishing and anodization process parameters on the texture (scanning electron microscopy (SEM)) and chemical composition (X-ray photoelectron spectroscopy (XPS)) of the surface layer was established. Electrochemical impedance spectroscopy in 5 % NaCl solution was used for the determination of the corrosion resistance of the alloy.

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“…4 indicates the presence of two distinct bands. The first of these contributions is located at 530.60 eV (1) and is attributed to O-P bonding and the second, found at 531.62 eV (2), is associated with oxygen bonded to OH -groups [8][9][10]. The P2p spectral envelope could also be fit with two peaks, each of which comprises an unresolved doublet.…”

Section: Resultsmentioning

confidence: 99%

XPS Study of Apatite Formed from Simulated Body Fluid on a Titanium Substrate Surface Nitrided by an Atmospheric Pressure Nitrogen Microwave Plasma

Bai

Nagashima

Yajima

2015

J. Photopol. Sci. Technol.

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In this study, the surface of a titanium substrate was nitrided by successive exposure to carbon felt atmospheric pressure microwave plasma (CAMP) using a frequency of 2.45 GHz, an output power of 1000 W and an irradiation time of 120 s. The oxynitrided titanium substrate thus obtained was immersed in simulated body fluid at 36.5 °C for 120 hours to assess in vitro bioactivity, following which a crystal-like material was found to have covered the oxynitrided surface. X-ray photoelectron spectroscopy and X-ray diffraction revealed that the material was hydroxyapatite generated from the SBF, indicating that the surface of the oxynitrided titanium substrate was in vitro biocompatible.

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Nanocomposite hydroxyapatite formation on a Ti–13Nb–13Zr alloy exposed in a MEM cell culture medium and the effect of H2O2 addition

Cited by 66 publications

References 41 publications

Modification of a Ti–Mo alloy surface via plasma electrolytic oxidation in a solution containing calcium and phosphorus

Modification of a Ti–Mo alloy surface via plasma electrolytic oxidation in a solution containing calcium and phosphorus

Anodic oxidation of the Ti–13Nb–13Zr alloy

XPS Study of Apatite Formed from Simulated Body Fluid on a Titanium Substrate Surface Nitrided by an Atmospheric Pressure Nitrogen Microwave Plasma

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