Comparative study of the structure, properties, and corrosion behavior of Sr-containing biocoatings on Mg0.8Ca; Materials; Vol. 13 iss. 8

Détails bibliographiques
Parent link:Materials
Vol. 13 iss. 8.— 2020.— [1942, 21 p.]
Collectivité auteur: Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Autres auteurs: Sedelnikova M. B. Mariya Borisovna, Sharkeev Yu. P. Yury Petrovich, Tolkacheva T. V. Tatjyana Viktorovna, Khimich M. A. Margarita Andreevna, Bakina O. V. Olga Vladimirovna, Fomenko A. N. Alla Nikolaevna, Kazakbaeva A. A. Aygerim Azamatovna, Fadeeva I. V. Inna Vilorovna, Egorkin V. S. Vladimir Sergeevich, Gnedenkov S. V. Sergey Vasiljevich, Schmidt Ju. M. Jurgen, Loza K. Katerina, Primak O. Oleg, Epple M. Matthias
Résumé:Title screen
A comparative analysis of the structure, properties and the corrosion behavior of the micro-arc coatings based on Sr-substituted hydroxyapatite (Sr-HA) and Sr-substituted tricalcium phosphate (Sr-TCP) deposited on Mg0.8Ca alloy substrates was performed. The current density during the formation of the Sr-HA coatings was higher than that for the Sr-TCP coatings. As a result, the Sr-HA coatings were thicker and had a greater surface roughness Ra than the Sr-TCP coatings. In addition, pore sizes of the Sr-HA were almost two times larger. The ratio (Ca+Sr+Mg)/P were equal 1.64 and 1.47 for Sr-HA and Sr-TCP coatings, respectively. Thus, it can be assumed that the composition of Sr-HA and Sr-TCP coatings was predominantly presented by (Sr,Mg)-substituted hydroxyapatite and (Sr,Mg)-substituted tricalcium phosphate. However, the average content of Sr was approximately the same for both types of the coatings and was equal to 1.8 at.%. The Sr-HA coatings were less soluble and had higher corrosion resistance than the Sr-TCP coatings. Cytotoxic tests in vitro demonstrated a higher cell viability after cultivation with extracts of the Sr-HA coatings.
Langue:anglais
Publié: 2020
Sujets:
Accès en ligne:https://doi.org/10.3390/ma13081942
Format: Électronique Chapitre de livre
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=665134

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