In�vitro biodegradation, electrochemical corrosion evaluations and mechanical properties of an Mg/HA/TiO2nanocomposite for biomedical applications
In this study, a biodegradable Mg/HA/TiO2nanocomposite was prepared using a milling-pressing-sintering powder metallurgy technique. The combined effects of hydroxyapatite (HA) and titania (TiO2) on the corrosion behavior of pure Mg were investigated via in�vitro immersion and electrochemical tests...
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| Format: | Article |
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Elsevier Ltd
2017
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| author | Khalajabadi, S. Z. Ahmad, N. Izman, S. Haji Abu, A. B. Haider, W. Abdul Kadir, M. R. |
| author_facet | Khalajabadi, S. Z. Ahmad, N. Izman, S. Haji Abu, A. B. Haider, W. Abdul Kadir, M. R. |
| author_sort | Khalajabadi, S. Z. |
| collection | ePrints |
| description | In this study, a biodegradable Mg/HA/TiO2nanocomposite was prepared using a milling-pressing-sintering powder metallurgy technique. The combined effects of hydroxyapatite (HA) and titania (TiO2) on the corrosion behavior of pure Mg were investigated via in�vitro immersion and electrochemical tests in a simulated body fluid (SBF), and changes in the mechanical properties were analyzed using a compression test. Furthermore, X-ray diffraction, Fourier-transform infrared spectroscopy, atomic-force microscopy, field-emission scanning electron microscopy and transmission electron microscopy were used to investigate the composition and microstructure of the Mg/HA/TiO2bionanocomposite as well as the morphology of the corrosion products. The corrosion rate of the Mg/HA nanocomposite decreased both in terms of mass loss and hydrogen evolution with a decrease in HA from 27.5 to 5�wt% and an addition of 15�wt% TiO2. By sintering the Mg/HA/TiO2nanocomposites, MgTiO3nanoflakes were formed with a hierarchical microstructure on the surface of the samples. The compression and electrochemical tests indicated that the ternary Mg/12.5HA/10TiO2nanocomposite had a good combination of mechanical properties and corrosion resistance of 12.17�k�cm2in the SBF solution. The cell culture results indicated that the Mg/HA/TiO2nanocomposite was biocompatible with osteoblasts. |
| first_indexed | 2024-03-05T20:12:35Z |
| format | Article |
| id | utm.eprints-76415 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T20:12:35Z |
| publishDate | 2017 |
| publisher | Elsevier Ltd |
| record_format | dspace |
| spelling | utm.eprints-764152018-04-30T13:21:05Z http://eprints.utm.my/76415/ In�vitro biodegradation, electrochemical corrosion evaluations and mechanical properties of an Mg/HA/TiO2nanocomposite for biomedical applications Khalajabadi, S. Z. Ahmad, N. Izman, S. Haji Abu, A. B. Haider, W. Abdul Kadir, M. R. TJ Mechanical engineering and machinery In this study, a biodegradable Mg/HA/TiO2nanocomposite was prepared using a milling-pressing-sintering powder metallurgy technique. The combined effects of hydroxyapatite (HA) and titania (TiO2) on the corrosion behavior of pure Mg were investigated via in�vitro immersion and electrochemical tests in a simulated body fluid (SBF), and changes in the mechanical properties were analyzed using a compression test. Furthermore, X-ray diffraction, Fourier-transform infrared spectroscopy, atomic-force microscopy, field-emission scanning electron microscopy and transmission electron microscopy were used to investigate the composition and microstructure of the Mg/HA/TiO2bionanocomposite as well as the morphology of the corrosion products. The corrosion rate of the Mg/HA nanocomposite decreased both in terms of mass loss and hydrogen evolution with a decrease in HA from 27.5 to 5�wt% and an addition of 15�wt% TiO2. By sintering the Mg/HA/TiO2nanocomposites, MgTiO3nanoflakes were formed with a hierarchical microstructure on the surface of the samples. The compression and electrochemical tests indicated that the ternary Mg/12.5HA/10TiO2nanocomposite had a good combination of mechanical properties and corrosion resistance of 12.17�k�cm2in the SBF solution. The cell culture results indicated that the Mg/HA/TiO2nanocomposite was biocompatible with osteoblasts. Elsevier Ltd 2017 Article PeerReviewed Khalajabadi, S. Z. and Ahmad, N. and Izman, S. and Haji Abu, A. B. and Haider, W. and Abdul Kadir, M. R. (2017) In�vitro biodegradation, electrochemical corrosion evaluations and mechanical properties of an Mg/HA/TiO2nanocomposite for biomedical applications. Journal of Alloys and Compounds, 696 . pp. 768-781. ISSN 0925-8388 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84999873068&doi=10.1016%2fj.jallcom.2016.11.106&partnerID=40&md5=5ad8fe9b246c8ec32020ce34b77cc476 DOI:10.1016/j.jallcom.2016.11.106 |
| spellingShingle | TJ Mechanical engineering and machinery Khalajabadi, S. Z. Ahmad, N. Izman, S. Haji Abu, A. B. Haider, W. Abdul Kadir, M. R. In�vitro biodegradation, electrochemical corrosion evaluations and mechanical properties of an Mg/HA/TiO2nanocomposite for biomedical applications |
| title | In�vitro biodegradation, electrochemical corrosion evaluations and mechanical properties of an Mg/HA/TiO2nanocomposite for biomedical applications |
| title_full | In�vitro biodegradation, electrochemical corrosion evaluations and mechanical properties of an Mg/HA/TiO2nanocomposite for biomedical applications |
| title_fullStr | In�vitro biodegradation, electrochemical corrosion evaluations and mechanical properties of an Mg/HA/TiO2nanocomposite for biomedical applications |
| title_full_unstemmed | In�vitro biodegradation, electrochemical corrosion evaluations and mechanical properties of an Mg/HA/TiO2nanocomposite for biomedical applications |
| title_short | In�vitro biodegradation, electrochemical corrosion evaluations and mechanical properties of an Mg/HA/TiO2nanocomposite for biomedical applications |
| title_sort | ini 1 2vitro biodegradation electrochemical corrosion evaluations and mechanical properties of an mg ha tio2nanocomposite for biomedical applications |
| topic | TJ Mechanical engineering and machinery |
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