Antibacterial Properties and Long-Term Corrosion Resistance of Bioactive Coatings Obtained by Matrix-Assisted Pulsed Laser Evaporation on TiZrTaAg
The long-term corrosion and antibacterial evaluation of bioactive coating obtained by matrix-assisted pulsed laser evaporation (MAPLE) on TiZrTaAg is crucial for assessing its potential in biomedical applications. The MAPLE deposition technique involves the formation of a dense and adherent layer on...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-02-01
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| Series: | Metals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-4701/15/3/253 |
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| Summary: | The long-term corrosion and antibacterial evaluation of bioactive coating obtained by matrix-assisted pulsed laser evaporation (MAPLE) on TiZrTaAg is crucial for assessing its potential in biomedical applications. The MAPLE deposition technique involves the formation of a dense and adherent layer on the surface of the alloy which can include a multitude of components such as bioactive glass, ZnO and graphene oxide. Long-term corrosion studies in simulated body fluids evaluate the stability and integrity of the coating over extended periods, ensuring its durability in the physiological environment. The results showed that the coatings, especially the one incorporating graphene oxide (GO), significantly reduced the corrosion rate of TiZrTaAg compared to the uncoated alloy. Antibacterial evaluation assesses the coating’s ability to inhibit bacterial colonization and biofilm formation, which are major concerns in implant-associated infections. The coatings demonstrated high antibacterial activity, with the one with the GO-containing film exhibiting the highest bacterial inhibition, achieving 83% against <i>Staphylococcus aureus</i> and 71% against <i>Escherichia coli</i>. The study concluded that the MAPLE-modified TiZrTaAg alloy with bioactive coatings, particularly the one with GO, shows promising potential for biomedical applications due to enhanced corrosion resistance and strong antibacterial properties. |
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| ISSN: | 2075-4701 |