The influence of nanoporous anodic titanium oxide substrates on the growth of the crystalline hydroxyapatite coatings

Suchanek, Katarzyna; Hajdyła, Mariusz; Maximenko, Alexey; Zarzycki, A.; Marszałek, M.; Jany, Benedykt R.

doi:10.1016/j.matchemphys.2016.10.042

Cited by 23 publications

(14 citation statements)

References 53 publications

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“…Oxide film also is characterized by high adsorption properties. The film structure contributes to the adhesion of HA to the substrate with subsequent transformation of amorphous HA into the crystalline state [Suchanek 2017]. As mentioned above, HA coating was deposited on anodized titanium substrate.…”

Section: Resultsmentioning

confidence: 99%

Hydroxyapatite and Zinc Oxide Based Two-Layer Coating, Deposited on Ti6al4v Substrate

Sukhodub¹,

Panda²,

Suchodub³

et al. 2019

MM SJ

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At first two-layer HA-ZnO/Alg coating was obtained on the preanodized Ti6Al4V substrates by the thermal substrate deposition method (TSD). In frame of this work TSD method was at first applied for obtaining ZnO coating from aqueous alginate-containing solutions on a pre-deposited OH layer. XRD, SEM analyzes show that the biopolymer has a significant influence on the coatings formation, their morphology, texture, structure of ZnO nanoparticles. The average rate of HA deposition and ZnO deposition from alginate containing solution are 4 μm/min and 30 μm/min, respectively. In the presence of alginate boll-shaped ZnO microparticles are formed on the HA layer, consisting of needle-shaped crystals. Obtained coating is promising for medical implants, based on titanium and its alloys, because they potentially have both bioactivity and antibacterial activity.

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Section: Resultsmentioning

confidence: 99%

Hydroxyapatite and Zinc Oxide Based Two-Layer Coating, Deposited on Ti6al4v Substrate

Sukhodub¹,

Panda²,

Suchodub³

et al. 2019

MM SJ

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“…8 The curved surfaces of the nanotubes provide a large number of active sites that are available for nucleation, which consequently results in a faster growth of the HA crystals -which then translates into a high surface coverage. 20 Characterization of as-deposited coatings Figure 3A compares the XRD patterns of Ti after the HA/TNT deposition and the FAgHA/anodized double-layer fabrication. Both the coatings were annealed to 450°C since the as-deposited coatings are amorphous.…”

Section: Resultsmentioning

confidence: 99%

“…The purpose of the heat treatment was to enhance the crystallinity of the HA coating and to make the TNT transform from amorphous to anatase phase. 20 All of the reagents were of analytical grade and purchased from Aladdin (Shanghai Aladdin Biochemical Technology Co., Ltd., Shanghai, China).…”

Section: Synthesis Of Fagha/tnt Coatingsmentioning

confidence: 99%

“…19 The use of TiO 2 in the coating structure can improve the adhesion and corrosion behavior of the contacting layer. [20][21][22] In some cases, an intermediate layer of TiO 2 is formed by anodization between the HA deposit and the substrate. The porosity of the layer can enhance the HA adhesion and create suitable cell anchorage circumstances.…”

Section: Introductionmentioning

confidence: 99%

“…The porosity of the layer can enhance the HA adhesion and create suitable cell anchorage circumstances. 20,21 We have already reported that AgHA/TiO 2 nanocomposite coatings can promisingly deactivate bacteria to lose their replication ability, which leads to cell death and significant bactericidal activity against gram-negative bacteria. [23][24][25][26] In addition, we previously employed ED to synthesize fluorhydroxyapatite (FHA)/ZrO 2 nanocoatings on Ti; 27 this ED-fabricated nanocomposite coating exhibited superior mechanical and chemical stability and stronger corrosion resistance than the pure HA film in physiological environments.…”

Section: Introductionmentioning

confidence: 99%

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Nanostructured Ag<sup>+</sup>-substituted fluorhydroxyapatite-TiO<sub>2</sub> coatings for enhanced bactericidal effects and osteoinductivity of Ti for biomedical applications

Huang

Song

Chang

et al. 2018

IJN

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BackgroundPoor mechanical properties, undesirable fast dissolution rate, and lack of antibacterial activity limit the application of hydroxyapatite (HA) as an implant coating material. To overcome these limitations, a hybrid coating of Ag+-substituted fluorhydroxyapatite and titania nanotube (TNT) was prepared.MethodsThe incorporation of silver into the HA-TiO2 hybrid coating improves its antimicrobial properties. The addition of F as a second binary element increases the structural stability of the coating. The TNT/F-and-Ag-substituted HA (FAgHA) bilayer coating on the Ti substrate was confirmed by X-ray diffraction, scanning electron microscope, energy-dispersive X-ray spectroscopy (EDS), and X-ray photoelectron spectroscopy (XPS).ResultsThe results indicate that the FAgHA/TNT nanocomposite coating has a dense and uniform morphology with a nano-rod-like structure. The solubility measurement result shows that the substitution of F− ions into the AgHA structure has a positive effect on the dissolution resistance of HA. The adhesion strength of FAgHA/TNT has significantly increased because of the interlocking of the roughened surface with nano-rod-like particles that entered into the voids of the TiO2 nanotubes. Compared with that of the bare Ti, the corrosion current density of FAgHA/TNT-coated Ti substrate decreased from 3.71 to 0.18 μA, and its corrosion resistance increased by almost two orders of magnitude. Moreover, despite pure HA, the FAgHA killed all viable Staphylococcus aureus after 24 hours of incubation. Although the fabricated FAgHA/TNT coating is hydrophobic, it induced deposition of the typical spherical apatite when immersed in a simulated body fluid (SBF); the osteoblasts spread very well on the surface of the coating. In addition, in vitro cell culture tests demonstrated cell viability and alkaline phosphatase (ALP) similar to pure HA, which indicated good cytocompatibility. Interestingly, compared with bare Ti, FAgHA/TNT-coated Ti surface was innocent for cell vitality and even more beneficial for cell osteogenesis in vitro.ConclusionEnhancing the osseointegration and preventing infection in implants, the FAgHA/TNT-coated Ti makes implants more successful.

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Apatite-forming ability of hydrothermally deposited rutile nano-structural arrays with exposed {101} facets on Ti foil

et al. 2017

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The influence of nanoporous anodic titanium oxide substrates on the growth of the crystalline hydroxyapatite coatings

Cited by 23 publications

References 53 publications

Hydroxyapatite and Zinc Oxide Based Two-Layer Coating, Deposited on Ti6al4v Substrate

Hydroxyapatite and Zinc Oxide Based Two-Layer Coating, Deposited on Ti6al4v Substrate

Nanostructured Ag<sup>+</sup>-substituted fluorhydroxyapatite-TiO<sub>2</sub> coatings for enhanced bactericidal effects and osteoinductivity of Ti for biomedical applications

Apatite-forming ability of hydrothermally deposited rutile nano-structural arrays with exposed {101} facets on Ti foil

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