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The Effect of Electrophoretic Deposition Parameters on the Microstructure and Adhesion of Zein Coatings to Titanium Substrates

Zein coatings were obtained by electrophoretic deposition (EPD) on commercially pure titanium substrates in an as-received state and after various chemical treatments. The properties of the zein solution, zeta potential and conductivity, at varying pH values were investigated. It was found that the...

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Autores principales: Maciąg, Filip, Moskalewicz, Tomasz, Kowalski, Kazimierz, Łukaszczyk, Alicja, Hadzhieva, Zoya, Boccaccini, Aldo Roberto
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7827670/
https://www.ncbi.nlm.nih.gov/pubmed/33435364
http://dx.doi.org/10.3390/ma14020312
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author Maciąg, Filip
Moskalewicz, Tomasz
Kowalski, Kazimierz
Łukaszczyk, Alicja
Hadzhieva, Zoya
Boccaccini, Aldo Roberto
author_facet Maciąg, Filip
Moskalewicz, Tomasz
Kowalski, Kazimierz
Łukaszczyk, Alicja
Hadzhieva, Zoya
Boccaccini, Aldo Roberto
author_sort Maciąg, Filip
collection PubMed
description Zein coatings were obtained by electrophoretic deposition (EPD) on commercially pure titanium substrates in an as-received state and after various chemical treatments. The properties of the zein solution, zeta potential and conductivity, at varying pH values were investigated. It was found that the zein content and the ratio of water to ethanol of the solution used for EPD, as well as the process voltage value and time, significantly influence the morphology of coatings. The deposits obtained from the solution containing 150 g/L and 200 g/L of zein and 10 vol % of water and 90 vol % of ethanol, about 4–5 μm thick, were dense and homogeneous. The effect of chemical treatment of the Ti substrate surface prior to EPD on coating adhesion to the substrate was determined. The coatings showed the highest adhesion to the as-received and anodized substrates due to the presence of a thick TiO(2) layer on their surfaces and the presence of specific surface features. Coated titanium substrates showed slightly lower electrochemical corrosion resistance than the uncoated one in Ringer’s solution. The coatings showed a well-developed surface topography compared to the as-received substrate, and they demonstrated hydrophilic nature. The present results provide new insights for the further development of zein-based composite coatings for biomedical engineering applications.
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spelling pubmed-78276702021-01-25 The Effect of Electrophoretic Deposition Parameters on the Microstructure and Adhesion of Zein Coatings to Titanium Substrates Maciąg, Filip Moskalewicz, Tomasz Kowalski, Kazimierz Łukaszczyk, Alicja Hadzhieva, Zoya Boccaccini, Aldo Roberto Materials (Basel) Article Zein coatings were obtained by electrophoretic deposition (EPD) on commercially pure titanium substrates in an as-received state and after various chemical treatments. The properties of the zein solution, zeta potential and conductivity, at varying pH values were investigated. It was found that the zein content and the ratio of water to ethanol of the solution used for EPD, as well as the process voltage value and time, significantly influence the morphology of coatings. The deposits obtained from the solution containing 150 g/L and 200 g/L of zein and 10 vol % of water and 90 vol % of ethanol, about 4–5 μm thick, were dense and homogeneous. The effect of chemical treatment of the Ti substrate surface prior to EPD on coating adhesion to the substrate was determined. The coatings showed the highest adhesion to the as-received and anodized substrates due to the presence of a thick TiO(2) layer on their surfaces and the presence of specific surface features. Coated titanium substrates showed slightly lower electrochemical corrosion resistance than the uncoated one in Ringer’s solution. The coatings showed a well-developed surface topography compared to the as-received substrate, and they demonstrated hydrophilic nature. The present results provide new insights for the further development of zein-based composite coatings for biomedical engineering applications. MDPI 2021-01-09 /pmc/articles/PMC7827670/ /pubmed/33435364 http://dx.doi.org/10.3390/ma14020312 Text en © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Maciąg, Filip
Moskalewicz, Tomasz
Kowalski, Kazimierz
Łukaszczyk, Alicja
Hadzhieva, Zoya
Boccaccini, Aldo Roberto
The Effect of Electrophoretic Deposition Parameters on the Microstructure and Adhesion of Zein Coatings to Titanium Substrates
title The Effect of Electrophoretic Deposition Parameters on the Microstructure and Adhesion of Zein Coatings to Titanium Substrates
title_full The Effect of Electrophoretic Deposition Parameters on the Microstructure and Adhesion of Zein Coatings to Titanium Substrates
title_fullStr The Effect of Electrophoretic Deposition Parameters on the Microstructure and Adhesion of Zein Coatings to Titanium Substrates
title_full_unstemmed The Effect of Electrophoretic Deposition Parameters on the Microstructure and Adhesion of Zein Coatings to Titanium Substrates
title_short The Effect of Electrophoretic Deposition Parameters on the Microstructure and Adhesion of Zein Coatings to Titanium Substrates
title_sort effect of electrophoretic deposition parameters on the microstructure and adhesion of zein coatings to titanium substrates
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7827670/
https://www.ncbi.nlm.nih.gov/pubmed/33435364
http://dx.doi.org/10.3390/ma14020312
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