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Open AccessArticle
The Optimization of the Synthesis of Antibacterial Coatings on Ti6Al4V Coupons Obtained by Electron Beam Melting
by
Javier Molina
Javier Molina 1,2,*
,
Ana Valero-Gómez
Ana Valero-Gómez 1
,
Patricia Bernabé-Quispe
Patricia Bernabé-Quispe 3,
María Ángeles Tormo-Mas
María Ángeles Tormo-Mas 3
and
Francisco Bosch
Francisco Bosch 1
1
AIDIMME, Instituto Tecnológico Metalmecánico, Mueble, Madera, Embalaje y Afines, Parque Tecnológico, Avda. Leonardo Da Vinci, 38, 46980 Paterna, Spain
2
Departamento de Ingeniería Textil y Papelera, EPS de Alcoy, Universitat Politècnica de València, Plaza Ferrándiz y Carbonell s/n, 03801 Alcoy, Spain
3
Grupo Infección Grave, Instituto de Investigación Sanitaria La Fe, Hospital Universitari i Politècnic La Fe, Avd. Fernando Abril Martorell 106, 46026 Valencia, Spain
*
Author to whom correspondence should be addressed.
Metals 2024, 14(8), 855; https://doi.org/10.3390/met14080855 (registering DOI)
Submission received: 30 June 2024
/
Revised: 20 July 2024
/
Accepted: 23 July 2024
/
Published: 25 July 2024
Abstract
Prosthetic joint infection represents a problem that worsens the patient’s quality of life and produces an economic impact on health systems. We report the anodization of Ti6Al4V coupons obtained by electron beam melting to produce a nanostructured surface. Anodization at 10 V produced TiO2 nanopores with a diameter in the range of 15–20 nm. Thereafter, Ag nanoparticles (AgNPs) were deposited in three different ways to provide antibacterial functionality to the coatings: electrochemically, thermally, and chemically. The electrochemical method did not provide good coverage of AgNPs. At 0.1 V of synthesis potential, cubic, octahedral, and truncated octahedral Ag crystals were obtained. The thermal method provided a good distribution of AgNPs but it damaged the TiO2 nanostructure. The chemical method showed the best distribution of AgNPs over the anodized surface and preserved the anodized nanostructure. For this reason, the chemical method was selected to perform further studies. Ag+ release was monitored in simulated body fluid at 37 °C, reaching 1.86 mg Ag+/L after 42 days. The antibacterial coating showed excellent antibacterial activity and inhibited biofilm formation for Staphylococcus epidermidis RP62A and Staphylococcus aureus V329 strains (lethality > 99.9% for both bacteria and assays).
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MDPI and ACS Style
Molina, J.; Valero-Gómez, A.; Bernabé-Quispe, P.; Tormo-Mas, M.Á.; Bosch, F.
The Optimization of the Synthesis of Antibacterial Coatings on Ti6Al4V Coupons Obtained by Electron Beam Melting. Metals 2024, 14, 855.
https://doi.org/10.3390/met14080855
AMA Style
Molina J, Valero-Gómez A, Bernabé-Quispe P, Tormo-Mas MÁ, Bosch F.
The Optimization of the Synthesis of Antibacterial Coatings on Ti6Al4V Coupons Obtained by Electron Beam Melting. Metals. 2024; 14(8):855.
https://doi.org/10.3390/met14080855
Chicago/Turabian Style
Molina, Javier, Ana Valero-Gómez, Patricia Bernabé-Quispe, María Ángeles Tormo-Mas, and Francisco Bosch.
2024. "The Optimization of the Synthesis of Antibacterial Coatings on Ti6Al4V Coupons Obtained by Electron Beam Melting" Metals 14, no. 8: 855.
https://doi.org/10.3390/met14080855
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