Development of hybrid hierarchical coatings on Mg3Zn0.4Ca alloy for orthopaedic implants
A hybrid hierarchical coating (HHC) biodegradable system, consisting of a ceramic (PEO) and a biodegradable microporous polymeric (PLA or PCL) layers, was developed on Mg3Zn0.4Ca alloy and evaluated under quasi-in vivo conditions. The polymer top-coat was produced using the Breath Figures approach b...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-05-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423008803 |
| _version_ | 1797798764627361792 |
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| author | Lara Moreno Marta Mohedano Raúl Arrabal Juan Rodríguez-Hernández Endzhe Matykina |
| author_facet | Lara Moreno Marta Mohedano Raúl Arrabal Juan Rodríguez-Hernández Endzhe Matykina |
| author_sort | Lara Moreno |
| collection | DOAJ |
| description | A hybrid hierarchical coating (HHC) biodegradable system, consisting of a ceramic (PEO) and a biodegradable microporous polymeric (PLA or PCL) layers, was developed on Mg3Zn0.4Ca alloy and evaluated under quasi-in vivo conditions. The polymer top-coat was produced using the Breath Figures approach by dip-coating the PEO treated ceramic surface onto a PLA/PCL polymer solution and withdraw under high relative humidity. According to our findings, when the polymer coating is applied directly onto the PEO layer using high humidity a negligible corrosion protection was observed. However, this issue was overcome by first applying a thin sealing polymer layer before the microporous polymer layer prepared by dip-coating in the absence of moisture. The HHC system improves the corrosion resistance by 10–12 times compared to the stand-alone PEO coating and, due to its inherent porosity, should be amenable for further functionalization with pharmaceutical agents. |
| first_indexed | 2024-03-13T04:09:45Z |
| format | Article |
| id | doaj.art-cedd58ea71b94bde8445a82d84ddcb5c |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-13T04:09:45Z |
| publishDate | 2023-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-cedd58ea71b94bde8445a82d84ddcb5c2023-06-21T06:57:04ZengElsevierJournal of Materials Research and Technology2238-78542023-05-012458235838Development of hybrid hierarchical coatings on Mg3Zn0.4Ca alloy for orthopaedic implantsLara Moreno0Marta Mohedano1Raúl Arrabal2Juan Rodríguez-Hernández3Endzhe Matykina4Departamento de Ingeniería Química y de Materiales, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Madrid, 28040, Spain; Corresponding author.Departamento de Ingeniería Química y de Materiales, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Madrid, 28040, SpainDepartamento de Ingeniería Química y de Materiales, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Madrid, 28040, SpainFuncionalización de polímeros (Fupol), Instituto de ciencia y Tecnología de Polímeros (CSIC), Spain; Unidad Asociada al ICTP, IQM (CSIC), Grupo de Síntesis Orgánica y Bioevaluación, Instituto Pluridisciplinar (UCM), Paseo de Juan XXIII, 1, Madrid, 28040, SpainDepartamento de Ingeniería Química y de Materiales, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Madrid, 28040, Spain; Unidad Asociada al ICTP, IQM (CSIC), Grupo de Síntesis Orgánica y Bioevaluación, Instituto Pluridisciplinar (UCM), Paseo de Juan XXIII, 1, Madrid, 28040, SpainA hybrid hierarchical coating (HHC) biodegradable system, consisting of a ceramic (PEO) and a biodegradable microporous polymeric (PLA or PCL) layers, was developed on Mg3Zn0.4Ca alloy and evaluated under quasi-in vivo conditions. The polymer top-coat was produced using the Breath Figures approach by dip-coating the PEO treated ceramic surface onto a PLA/PCL polymer solution and withdraw under high relative humidity. According to our findings, when the polymer coating is applied directly onto the PEO layer using high humidity a negligible corrosion protection was observed. However, this issue was overcome by first applying a thin sealing polymer layer before the microporous polymer layer prepared by dip-coating in the absence of moisture. The HHC system improves the corrosion resistance by 10–12 times compared to the stand-alone PEO coating and, due to its inherent porosity, should be amenable for further functionalization with pharmaceutical agents.http://www.sciencedirect.com/science/article/pii/S2238785423008803Hybrid coatingsMagnesiumPolymerBiodegradablePlasma electrolytic oxidationMicroporous surface |
| spellingShingle | Lara Moreno Marta Mohedano Raúl Arrabal Juan Rodríguez-Hernández Endzhe Matykina Development of hybrid hierarchical coatings on Mg3Zn0.4Ca alloy for orthopaedic implants Journal of Materials Research and Technology Hybrid coatings Magnesium Polymer Biodegradable Plasma electrolytic oxidation Microporous surface |
| title | Development of hybrid hierarchical coatings on Mg3Zn0.4Ca alloy for orthopaedic implants |
| title_full | Development of hybrid hierarchical coatings on Mg3Zn0.4Ca alloy for orthopaedic implants |
| title_fullStr | Development of hybrid hierarchical coatings on Mg3Zn0.4Ca alloy for orthopaedic implants |
| title_full_unstemmed | Development of hybrid hierarchical coatings on Mg3Zn0.4Ca alloy for orthopaedic implants |
| title_short | Development of hybrid hierarchical coatings on Mg3Zn0.4Ca alloy for orthopaedic implants |
| title_sort | development of hybrid hierarchical coatings on mg3zn0 4ca alloy for orthopaedic implants |
| topic | Hybrid coatings Magnesium Polymer Biodegradable Plasma electrolytic oxidation Microporous surface |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423008803 |
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