Enhancing corrosion resistance of biodegradable magnesium with dicalcium phosphate dihydrate and Chlorella sp. biomass

Magnesium shows promise as a material for temporary fixation, yet its rapid corrosion poses health risks due to metal ion release. To mitigate these concerns, a biofunctionalization approach involving dicalcium phosphate dihydrate (DCPD) compounds and Chlorella sp. biomass was employed via electrode...

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Bibliographic Details
Published iniScience Vol. 27; no. 9; p. 110761
Main Authors Pua, Lizeth del Carmen Gutierrez, Margareth Arrieta, Lily, Rincon Montenegro, Juan Carlos, Di Mare Pareja, Leonardo Antonio, Triana, Yaneth Pineda, Reyes, Ana Fonseca, Paredes Mendez, Virginia Nathaly
Format Journal Article
LanguageEnglish
Published United States Elsevier Inc 20.09.2024
Elsevier
Subjects
Biotechnology
Industrial biotechnology
Materials in biotechnology
Biotechnology
Materials in biotechnology
Industrial biotechnology
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Summary:Magnesium shows promise as a material for temporary fixation, yet its rapid corrosion poses health risks due to metal ion release. To mitigate these concerns, a biofunctionalization approach involving dicalcium phosphate dihydrate (DCPD) compounds and Chlorella sp. biomass was employed via electrodeposition, silanization, and dip-coating. Surface characterization using XRD, FTIR, and SEM confirmed successful deposition and immobilization. Corrosion behavior was assessed through electrochemical, immersion, and atomic absorption tests, revealing improved resistance and reduced Mg2+ ion release. The coatings demonstrated significant enhancement in corrosion resistance, guarding against pitting and cracks. The findings suggest the potential of Mg/DCPD and Mg/DCPD/microalgae coatings in addressing corrosion-related risks in temporary fixation applications, promising improved biocompatibility and longevity for medical implants. [Display omitted] •Mg biofunctionalization with DCPD and Chlorella sp. optimized for corrosion resistance•Chlorella sp. immobilized in DCPD, depositing lipids, polysaccharides, and proteins•DCPD/microalgae coatings cut Mg current density and corrosion, up to 61% efficiency•Mg/DCPD and Mg/DCPD/microalgae coatings stopped corrosion-induced pitting and cracks Biotechnology; Industrial biotechnology; Materials in biotechnology
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ISSN:2589-0042
2589-0042
DOI:10.1016/j.isci.2024.110761