Formation of structure and composition of Sr-Si-containing calcium phosphate coatings via micro-arc oxidation

Rare earth/calcium phosphate composite coatings were fabricated on the surface of Ti-6Al-4V by micro-arc oxidation (MAO) technique. The wear properties and corrosion resistant of rare earth/ calcium phosphate composite coatings in the simulated body fluid (SBF) have been investigated and the bioactivity of the composite coatings were evaluated. The results show that the friction coefficient of the composite coatings in the SBF is only 0.15~0.18 and the anode polarization potential of the coating has been obviously enhanced about 0.18V compared with that of coatings of calcium phosphate coatings. So the composite coatings have excellent wear and corrosion resistant properties. XRD analysis indicates that the composite coatings can induce hydroxyapatite to form on its surface after soaked in SBF for 9d, which shows that the composite coatings own good bioactivity.

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Effect of ultrasound during micro-arc oxidation on the porous structure and adhesion strength of the calcium phosphate coatings

10.1063/1.5132022 ◽

2019 ◽

Cited By ~ 2

Author(s):

E. A. Kazantseva ◽

E. G. Komarova ◽

Yu. P. Sharkeev

Keyword(s):

Calcium Phosphate ◽

Porous Structure ◽

Adhesion Strength ◽

Phosphate Coatings ◽

Micro Arc Oxidation ◽

Calcium Phosphate Coatings

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Antibacterial properties of Ag (or Pt)-containing calcium phosphate coatings formed by micro-arc oxidation

Journal of Biomedical Materials Research Part A ◽

10.1002/jbm.a.31877 ◽

2009 ◽

Vol 88A (1) ◽

pp. 246-254 ◽

Cited By ~ 102

Author(s):

Won-Hoon Song ◽

Hyun Sam Ryu ◽

Seong-Hyeon Hong

Keyword(s):

Calcium Phosphate ◽

Antibacterial Properties ◽

Phosphate Coatings ◽

Micro Arc Oxidation ◽

Calcium Phosphate Coatings

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Influence of ultrasonic field during micro-arc oxidation on the structure and properties of calcium phosphate coatings

Journal of Physics Conference Series ◽

10.1088/1742-6596/1393/1/012098 ◽

2019 ◽

Vol 1393 ◽

pp. 012098

Author(s):

E G Komarova ◽

E A Kazantseva ◽

M B Sedelnikova ◽

Yu P Sharkeev

Keyword(s):

Calcium Phosphate ◽

Ultrasonic Field ◽

Structure And Properties ◽

Phosphate Coatings ◽

Micro Arc Oxidation ◽

Calcium Phosphate Coatings

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Effect of the Porosity, Roughness, Wettability, and Charge of Micro-Arc Coatings on the Efficiency of Doxorubicin Delivery and Suppression of Cancer Cells

Coatings ◽

10.3390/coatings10070664 ◽

2020 ◽

Vol 10 (7) ◽

pp. 664

Author(s):

Mariya Borisovna Sedelnikova ◽

Ekaterina G. Komarova ◽

Yurii P. Sharkeev ◽

Valentina V. Chebodaeva ◽

Tatiana V. Tolkacheva ◽

...

Keyword(s):

Calcium Phosphate ◽

X Ray Diffraction ◽

Oxidation Method ◽

X Ray ◽

Phosphate Coatings ◽

Micro Arc Oxidation ◽

Calcium Phosphate Coatings ◽

Adsorption Desorption ◽

Kinetics Of ◽

Scanning Electron

Porous calcium phosphate coatings were formed by the micro-arc oxidation method on the surface of titanium for the loading and controlled release of the anticancer drug doxorubicin. The coatings’ morphology and microstructure were examined by scanning electron microscopy. The phase composition was determined with the help of X-ray diffraction analysis. Studies of the hydrophilic properties of the coatings and their zeta potential were carried out. Data on the kinetics of doxorubicin adsorption-desorption were obtained. In addition, the effect of calcium phosphate coatings impregnated with doxorubicin on the viability of the Neuro-2a cell line was revealed. The coating formed at low voltages of 200–250 V contained a greater number of branched communicating pores, and therefore they were able to adsorb a greater amount of doxorubicin. The surface charge also contributes to the process of the adsorption-desorption of doxorubicin, but this effect is not fully understood and further studies are required to identify it.

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