Effect of chitosan–tungsten composite coating obtained by electrophoretic deposition on the corrosion resistance of Ni–Ti alloy in physiological medium
Ni–Ti shape memory alloys (Nitinol) are suitable for biomedical applications such as orthodontic, orthopedic, and cardiovascular implants. However, to avoid local inflammatory processes, efforts are being made to functionalize the surface of the Ni–Ti alloy with bioactive materials. Chitosan-based...
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Universidade Federal de Viçosa (UFV)
2023-08-01
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Series: | The Journal of Engineering and Exact Sciences |
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Online Access: | https://periodicos.ufv.br/jcec/article/view/16237 |
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author | José Anderson Machado Oliveira Thales Gomes Araujo Josiane Dantas Costa Arthur Filgueira de Almeida Ana Regina Nascimento Campos Renato Alexandre Costa de Santana |
author_facet | José Anderson Machado Oliveira Thales Gomes Araujo Josiane Dantas Costa Arthur Filgueira de Almeida Ana Regina Nascimento Campos Renato Alexandre Costa de Santana |
author_sort | José Anderson Machado Oliveira |
collection | DOAJ |
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Ni–Ti shape memory alloys (Nitinol) are suitable for biomedical applications such as orthodontic, orthopedic, and cardiovascular implants. However, to avoid local inflammatory processes, efforts are being made to functionalize the surface of the Ni–Ti alloy with bioactive materials. Chitosan-based composite coatings can be applied to improve the properties of Ni–Ti alloys due to their excellent properties, such as low toxicity, biocompatibility, biodegradability, and good film-forming ability. In this work, the chitosan–tungsten composite (Chit–W) was evaluated as a protective coating for Ni–Ti alloy in a physiological medium (Ringer's solution). The results of surface morphology and chemical composition (SEM and EDX) confirmed the formation of the composite coating formed by a chitosan matrix impregnated with tungsten oxide nanoparticles. Corrosion resistance results proved the efficiency of the composite coating, acting as a protective barrier between the surface of the substrate (Ni–Ti) and the corrosive environment. Therefore, the results point to a possible system candidate (Ni–Ti alloy coated with Chit–W composite) suitable for applications in orthopedic implants.
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format | Article |
id | doaj-art-bd12ebbdc7a54f558af464e2f050e51a |
institution | Kabale University |
issn | 2527-1075 |
language | English |
publishDate | 2023-08-01 |
publisher | Universidade Federal de Viçosa (UFV) |
record_format | Article |
series | The Journal of Engineering and Exact Sciences |
spelling | doaj-art-bd12ebbdc7a54f558af464e2f050e51a2025-02-02T19:54:53ZengUniversidade Federal de Viçosa (UFV)The Journal of Engineering and Exact Sciences2527-10752023-08-019610.18540/jcecvl9iss6pp16237-01eEffect of chitosan–tungsten composite coating obtained by electrophoretic deposition on the corrosion resistance of Ni–Ti alloy in physiological mediumJosé Anderson Machado Oliveira0Thales Gomes Araujo1Josiane Dantas Costa2Arthur Filgueira de Almeida3Ana Regina Nascimento Campos4Renato Alexandre Costa de Santana5Department of Mechanical Engineering, Federal University of Campina Grande – UFCG, Campina Grande-PB, BrazilDepartment of Mechanical Engineering, Federal University of Campina Grande – UFCG, Campina Grande-PB, BrazilDepartment of Mechanical Engineering, Federal University of Campina Grande – UFCG, Campina Grande-PB, BrazilDepartment of Mechanical Engineering, Federal University of Campina Grande – UFCG, Campina Grande-PB, BrazilDepartment of Mechanical Engineering, Federal University of Campina Grande – UFCG, Campina Grande-PB, BrazilDepartment of Mechanical Engineering, Federal University of Campina Grande – UFCG, Campina Grande-PB, Brazil Ni–Ti shape memory alloys (Nitinol) are suitable for biomedical applications such as orthodontic, orthopedic, and cardiovascular implants. However, to avoid local inflammatory processes, efforts are being made to functionalize the surface of the Ni–Ti alloy with bioactive materials. Chitosan-based composite coatings can be applied to improve the properties of Ni–Ti alloys due to their excellent properties, such as low toxicity, biocompatibility, biodegradability, and good film-forming ability. In this work, the chitosan–tungsten composite (Chit–W) was evaluated as a protective coating for Ni–Ti alloy in a physiological medium (Ringer's solution). The results of surface morphology and chemical composition (SEM and EDX) confirmed the formation of the composite coating formed by a chitosan matrix impregnated with tungsten oxide nanoparticles. Corrosion resistance results proved the efficiency of the composite coating, acting as a protective barrier between the surface of the substrate (Ni–Ti) and the corrosive environment. Therefore, the results point to a possible system candidate (Ni–Ti alloy coated with Chit–W composite) suitable for applications in orthopedic implants. https://periodicos.ufv.br/jcec/article/view/16237NitinolBiomaterialComposite Coating |
spellingShingle | José Anderson Machado Oliveira Thales Gomes Araujo Josiane Dantas Costa Arthur Filgueira de Almeida Ana Regina Nascimento Campos Renato Alexandre Costa de Santana Effect of chitosan–tungsten composite coating obtained by electrophoretic deposition on the corrosion resistance of Ni–Ti alloy in physiological medium The Journal of Engineering and Exact Sciences Nitinol Biomaterial Composite Coating |
title | Effect of chitosan–tungsten composite coating obtained by electrophoretic deposition on the corrosion resistance of Ni–Ti alloy in physiological medium |
title_full | Effect of chitosan–tungsten composite coating obtained by electrophoretic deposition on the corrosion resistance of Ni–Ti alloy in physiological medium |
title_fullStr | Effect of chitosan–tungsten composite coating obtained by electrophoretic deposition on the corrosion resistance of Ni–Ti alloy in physiological medium |
title_full_unstemmed | Effect of chitosan–tungsten composite coating obtained by electrophoretic deposition on the corrosion resistance of Ni–Ti alloy in physiological medium |
title_short | Effect of chitosan–tungsten composite coating obtained by electrophoretic deposition on the corrosion resistance of Ni–Ti alloy in physiological medium |
title_sort | effect of chitosan tungsten composite coating obtained by electrophoretic deposition on the corrosion resistance of ni ti alloy in physiological medium |
topic | Nitinol Biomaterial Composite Coating |
url | https://periodicos.ufv.br/jcec/article/view/16237 |
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