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Cited by 39Magnesium Alloys: Properties and ApplicationsCorrosion Behavior and InhibitionTitanium Alloys Microstructure and Properties

In-vitro corrosion of AZ31 magnesium alloys by using a polydopamine coating

Open access
Carangelo, Anna, Acquesta, Annalisa, Monetta, Tullio·2019·Bioactive Materials
DOI 10.1016/j.bioactmat.2018.12.005PMC PMC6310743
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Abstract

Magnesium alloys are candidates to be used as biodegradable biomaterials for producing medical device. Their use is restricted due to the high degradation rate in physiological media. To contribute to solving this problem, a polydopamine (PDOPA) layer could be used to increase adhesion between the metallic substrate and external organic coating. In this paper, the corrosion behaviour of samples was investigated to determine their performance during the long-term exposure in simulated body fluid. Electrochemical methods including Open Circuit Potential (OCP) and Electrochemical Impedance Spectroscopy (EIS) were used to investigate the corrosion resistance of samples. The results demonstrated a decreasing of the substrate degradation rate when PDOPA was used as interlayer supposing a synergistic effect when it was used together with the organic coating.

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  • The progressive increase in impedance magnitude (|Z|) and semicircle diameter in the order of PM < PDA < PSC < PDASC demonstrates that the combination of alginate/chitosan multilayer coating with the PDA underlayer provides superior corrosion resistance compared to the polyelectrolyte single coating alone.

    “The progressive increase in impedance magnitude (|Z|) and semicircle diameter in the order of PM < PDA < PSC < PDASC demonstrates that the combination of alginate/chitosan multilayer coating with the PDA underlayer provides superior corrosion resistance compared to the polyelectrolyte single coating alone [39,42].”

    From Functional Surface Modification of Magnesium Implant by Drug-Loaded Biodegradable Polymer Coating (2026) · cites this paper as [42]

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Research works printed but not linked: 14

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Authors
Carangelo, A., Acquesta, A., & Monetta, T.
Affiliations
University of Naples Federico II (IT)
Corresponding author
Carangelo, Anna
ORCID
Venue
Bioactive Materials
Publisher
Elsevier BV
Published
2019-12
Volume
4
Issue
1
Pages
71-78
ISSN
  • 2097-1192 (ISSN-L)
  • 2452-199X
DOI
10.1016/j.bioactmat.2018.12.005
PMC
PMC6310743
OpenAlex
W2906892194
Cited by
39
References
0
Citations by year
2025: 2 · 2024: 6 · 2023: 8 · 2022: 5 · 2021: 6 · 2020: 9 · 2019: 3
FWCI
1.46
Type
journal article
Language
en
Open access
Licence
Locations
  • Bioactive Materials (publishedVersion, cc-by-nc-nd)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Topics
  • Physical Sciences › Materials Science › Biomaterials › Magnesium Alloys: Properties and Applications
  • Physical Sciences › Materials Science › Materials Chemistry › Corrosion Behavior and Inhibition
  • Physical Sciences › Materials Science › Materials Chemistry › Titanium Alloys Microstructure and Properties
Keywords
AZ31 magnesium alloy, polydopamine coating, corrosion resistance, biodegradable biomaterials, simulated body fluid, degradation rate, interlayer coating, medical devices

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