Formation of hydroxyapatite on low Young's modulus Ti–30Nb–1Fe–1Hf alloy via anodic oxidation and hydrothermal treatment

Ou, Shih-Fu; Lin, Chao-Sung; Pan, Yung-Ning

doi:10.1016/j.msec.2009.06.004

Cited by 17 publications

(6 citation statements)

References 32 publications

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“…Hydrothermal treatment can be introduced aer plasma electrolytic oxidation to crystallise apatite formed on a substrate surface. In a series of studies, samples on which anodic oxide layers had been formed were placed in an autoclave and heated to temperatures of 160-300 C at a pressure of 4 MPa for 1-15 h. 34,116,[136][137][138] To obtain crystalline layers aer PEO, samples can be subjected to heat treatment. In previous studies, samples featuring an amorphous oxide layer were placed in a furnace and heated to temperatures of 400-700 C for 1-4 h. 28,30,31,97,112,134,139,140 Such treatment led to the phase transformation of amorphous TiO 2 into anatase and/or rutile.…”

Section: Additional Treatment Of Peo Coatings On Titanium and Its Alloysmentioning

confidence: 99%

Application of plasma electrolytic oxidation to bioactive surface formation on titanium and its alloys

2013

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In this work, a review of the literature concerning the surface modification of implants composed of titanium and titanium alloys by plasma electrochemical oxidation (PEO), also known as micro-arc oxidation (MAO), is presented. The application of this process allows for the formation of oxide layers with different porosities on implants. Moreover, it is possible to enrich these oxide layers with species contained in solutions used for anodising, yielding suitable surface chemical properties. Anodising titanium implants in solutions containing compounds of calcium and phosphorous leads to the formation of bioactive layers and significantly reduces the time required for the osseointegration of implant to bone. Studies of the PEO process with respect to titanium implants have been conducted by a large number of research centres, and their results have been applied to the production of a new generation of titanium implants.

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Section: Additional Treatment Of Peo Coatings On Titanium and Its Alloysmentioning

confidence: 99%

Application of plasma electrolytic oxidation to bioactive surface formation on titanium and its alloys

2013

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“…Previous studies have indicated that the MAO-treated layer contains many pores with sizes ranging from hundreds to tens of nanometers [27,28]. This causes poor adhesion between the MAO-treated layer and Ti substrate, especially for the layers treated at voltages higher than 300 V, whose adhesion strength has been found to be lower than 15 MPa [29]. In this study, the adhesion strength of the EDC-treated layer was first measured by a tension test according to ASTM C633.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of a hydroxyapatite-containing coating on Ti–Ta alloy by electrical discharge coating and hydrothermal treatment

Wang

2016

Surface and Coatings Technology

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“…Selimin et al prepared a porous oxide film on titanium by means of AO in acetic acid electrolyte, and found that the surface roughness increased with increasing oxidation voltage and oxidation current density, and the porous and rough surface provided more sites for the formation of hydroxyapatite [22]. Ou et al prepared porous oxide films containing Ca and P on Ti-30Nb-1Fe-1Hf alloy by anodic oxidation and hydrothermal treatment, accelerating the cell adhesion rate on the surface [23]. Previous studies on the oxidation of Ti-Cu have proven than the formation of CuO/Cu can effectively kill bacteria that come into contact with the surface [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Enhancing the Antibacterial Properties and Biocompatibility of Ti-Cu Alloy by Roughening and Anodic Oxidation

Xie

Mao

et al. 2022

Metals

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Although Ti-Cu alloys have been shown to possess good antibacterial properties, they are still biologically inert. In this study, sandblasting and acid etching combined with anodic oxidation were applied to roughen the surface as well as to form a TiO2/CuO/Cu2O composite film, which would benefit both the antibacterial properties and the biocompatibility. The surface morphology, the phase composition, and the physicochemical properties were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). Electrochemical testing and inductively coupled plasma spectrometry (ICP) were used to determine the corrosion resistance and Cu ion release, the plate counting method was used to evaluate the antibacterial performance, and the CCK-8 method was used to evaluate the cytocompatibility. It was revealed that a rough surface with densely porous double layer composed of TiO2/CuO/Cu2O was produced on Ti-Cu alloy surface after the combined surface modification, which enhanced the corrosion resistance significantly. The plate counting results demonstrated that the modified sample had strong long-term antibacterial performance (antibacterial rate > 99%), which was attributed to the formation of TiO2/CuO/Cu2O composite film. The cell compatibility evaluation results indicated that the surface modification improved the cytocompatibility. It was demonstrated that the combined modification provided very strong antibacterial ability and good cytocompatiblity, potentially making it a good candidate surface modification technique for Ti-Cu alloy for biomedical applications.

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Formation of hydroxyapatite on low Young's modulus Ti–30Nb–1Fe–1Hf alloy via anodic oxidation and hydrothermal treatment

Cited by 17 publications

References 32 publications

Application of plasma electrolytic oxidation to bioactive surface formation on titanium and its alloys

Application of plasma electrolytic oxidation to bioactive surface formation on titanium and its alloys

Fabrication of a hydroxyapatite-containing coating on Ti–Ta alloy by electrical discharge coating and hydrothermal treatment

Enhancing the Antibacterial Properties and Biocompatibility of Ti-Cu Alloy by Roughening and Anodic Oxidation

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