Antibacterial Amorphous–Crystalline Coatings Based on Wollastonite and ZnO Particles; Crystals; Vol. 14, iss. 10

Antibacterial Amorphous–Crystalline Coatings Based on Wollastonite and ZnO Particles; Crystals; Vol. 14, iss. 10

Bibliografische gegevens
Parent link:	Crystals.— .— Basel: MDPI AG Vol. 14, iss. 10.— 2024.— Article number 886, 18 p.
Coauteur:	Томский политехнический университет (570)
Andere auteurs:	Sedelnikova M. B. Mariya Borisovna, Mayer V. V. Violetta Vladimirovna, Bakina O. V. Olga Vasiljevna, Kashin A. D. Aleksandr Daniilovich, Uvarkin P. V. Pavel Viktorovich, Khimich M. A. Margarita Andreevna, Luginin N. A. Nikita Andreevich, Glukhov I. A. Ivan Aleksandrovich, Tolkacheva T. V. Tatjyana Viktorovna, Ugodchikova A. V. Anna Vladimirovna, Sharkeev Yu. P. Yury Petrovich
Samenvatting:	This study considers the regularities in the formation of amorphous–crystalline coatings with zinc oxide and wollastonite particles via micro-arc oxidation (MAO) on metal substrates made from a Mg-0.8 wt.% Ca alloy. The combination of components with increased antibacterial and osteogenic properties made it possible to obtain a unique bioactive and corrosion-resistant coating that slowed down the bioresorption of a magnesium implant and stimulated the processes of osteointegration. The coating was examined using various methods, including scanning and transmission electron microscopy, X-ray crystallography, scratch testing, energy-dispersive X-ray spectroscopy, and potentiodynamic polarization testing. As a result of plasma-chemical interactions between electrolyte components and the magnesium substrate, a porous amorphous–crystalline coating comprising wollastonite (CaSiO3), zinc oxide (ZnO), forsterite (Mg2SiO4), and periclase (MgO) was formed at varying voltages (350–500 V) during the MAO process. The protective properties of the coating were exceptional, as evidenced by the mass loss values of the coated samples (1.4–2.3%) in 0.9% NaCl solution, which were significantly lower than the mass loss of the uncoated alloy (8.9%). The coating synthesized at a voltage of 500 V was characterized by a maximum zinc content of 8 at.%, which was responsible for the highest antibacterial activity against Staphylococcus aureus (99.1%) Текстовый файл
Taal:	Engels
Gepubliceerd in:	2024
Onderwerpen:	micro-arc oxidation magnesium alloy amorphous–crystalline layer ZnO particles wollastonite particles surface morphology corrosion resistance antibacterial properties труды учёных ТПУ электронный ресурс
Online toegang:	https://doi.org/10.3390/cryst14100886
Formaat:	Elektronisch Hoofdstuk
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=677059

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