Biomedical evaluation of vacuum plasma sprayed tantalum coatings processed by alkali treatment and alkali-heat treatment with different NaOH concentrations

Lin, Su‐Hsia; Chien, Chi-Sheng; Kuo, Tsung-Yuan; Hsieh, Yuan-Tai; Huang, Junwei; Chin, W.H.; Chang, Ching‐Ping; Lee, T.M.; Lee, H.T.

doi:10.1016/j.surfcoat.2020.126400

Cited by 12 publications

(4 citation statements)

References 34 publications

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“…The hydrophilic ability of the MAO surface is improved with increasing MAO treatment time. The contact angles of droplets on solid surfaces depend on some parameters such as the surface chemistry, topography and roughness 55 , 56 . Compared to bare Zr substrates, the water molecules on the MAO surfaces are easily adsorbed since the surface of MAO coatings is porous.…”

Section: Resultsmentioning

confidence: 99%

Characterization and investigation of biological properties of silver nanoparticle-doped hydroxyapatite-based surfaces on zirconium

Yildiz

Durdu

Özcan

et al. 2023

Sci Rep

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The infections leading to failed implants can be controlled mainly by metal and metal oxide-based nanoparticles. In this work, the randomly distributed AgNPs-doped onto hydroxyapatite-based surfaces were produced on zirconium by micro arc oxidation (MAO) and electrochemical deposition processes. The surfaces were characterized by XRD, SEM, EDX mapping and EDX area and contact angle goniometer. AgNPs-doped MAO surfaces, which is beneficial for bone tissue growth exhibited hydrophilic behaviors. The bioactivity of the AgNPs-doped MAO surfaces is improved compared to bare Zr substrate under SBF conditions. Importantly, the AgNPs-doped MAO surfaces exhibited antimicrobial activity for E. coli and S. aureus compared to control samples.

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Section: Resultsmentioning

confidence: 99%

Characterization and investigation of biological properties of silver nanoparticle-doped hydroxyapatite-based surfaces on zirconium

Yildiz

Durdu

Özcan

et al. 2023

Sci Rep

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“…Process of coating magnesium with NaOH solution using a magnesium AZ31 cathode and platinum anode with a length of 50 mm x width 20 mm x thickness 5 mm, Ti6Al4V plates with 50 × 50 × 3 mm size [6] then with 0.5 Molar and 1 Molar NaOH solution.…”

Section: Methodsmentioning

confidence: 99%

The Effect of Sodium Hydroxide Concentration on Physical and Mechanical Properties of Magnesium AZ31 Coating for Biodegradable Bone Implant Application

Sugiyanto,

Safii,

Wicaksono

et al. 2023

JESR

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Anodizing is a metal coating technique by converting a metal surface to form an oxide layer by electrolysis, one of which is to increase the hardness of a material. This research was carried out to know the effect of variations in electrolyte solution on the hardness of the coating resulting from the anodizing process. The electrolyte used is a solution of NaOH (Sodium Hydroxide) with a concentration of 1 M solution of 68% purity. The specimen used is magnesium AZ31, voltage 10 Volts, soaking time 10 minutes at room temperature. Based on the data analysis results, the magnesium layer's hardness value at 10 minutes at a voltage of 10 volts is 69 HV.In comparison, the coating thickness result at 10 minutes with a constant voltage of 10 volts is 6 ?m. While the concentration of the solution is 0.5 M, the purity is 68%. The specimen used is magnesium AZ31, voltage 10 Volts, soaking time 10 minutes at room temperature. Based on the results of data analysis, the hardness value of the magnesium layer at 10 minutes at a voltage of 10 volts is 67 HV. In comparison, the coating thickness at a time of 10 minutes with a constant voltage of 10 volts is 4 ?m. With variations in stress and time in different concentrations of the solution, there will be differences in the hardness value and thickness value of the AZ31 magnesium coating material.

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“…24 As for the implant surface modification, the hydrophilic property attached great importance during the cell-surface interactions when implanted. 25,26 Moreover, the hydrophilic property also increases the release of silver from Ag nanolayer. 27 The results of water contact angle measurement were displayed in Figure 2(a), indicating the AH-Ti samples possessed hydrophilic surface with the contact angle of 39.8 ± 2.8, while the contact angle increased to 134.6 ± 3.4 after the deposition of Ag nanolayer (AH-Ti/Ag0.25).…”

Section: Target Genesmentioning

confidence: 99%

Fabrication and evaluation of silver modified micro/nano structured titanium implant

Huang,

Wang,

Yao

et al. 2024

J Biomater Appl

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In order to enhance the antibacterial property of titanium implant without inducing obvious cytotoxicity, the combination of Ag nanolayer and micro/nano surface structure was conducted by magnetron sputtering and hot-alkali treatment in this study. A series of specimens (AH-Ti, AH-Ti/Ag0.25, AH-Ti/Ag1, AH-Ti/Ag2, and AH-Ti/Ag5) were prepared with different sputtering durations (0 min, 0.25 min, 1 min, 2 min, 5 min), respectively, all realizing long-term release of Ag+. In vitro experiments indicated that AH-Ti/Ag1 group possessed good cytocompatibility, nice osteogenic ability, and excellent antibacterial efficiency as well. In addition, AH-Ti/Ag0.25 showed good biocompatibility, while the reduction of S.aureus (78.5%) was not enough compared with AH-Ti/Ag1. Although the AH-Ti/Ag2 and AH-Ti/Ag5 group showed superior antibacterial activity, their obvious cytotoxicity caused low ALP and mineralization level. Therefore, the design of suitable Ag nanolayer coating combined with micro/nano surface structure (AH-Ti/Ag1) might be a promising strategy to enhance osteogenic property and maintain excellent antibacterial ability at the same time.

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Biomedical evaluation of vacuum plasma sprayed tantalum coatings processed by alkali treatment and alkali-heat treatment with different NaOH concentrations

Cited by 12 publications

References 34 publications

Characterization and investigation of biological properties of silver nanoparticle-doped hydroxyapatite-based surfaces on zirconium

Characterization and investigation of biological properties of silver nanoparticle-doped hydroxyapatite-based surfaces on zirconium

The Effect of Sodium Hydroxide Concentration on Physical and Mechanical Properties of Magnesium AZ31 Coating for Biodegradable Bone Implant Application

Fabrication and evaluation of silver modified micro/nano structured titanium implant

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