Improving magnesium's corrosion resistance through tannic acid–polyethyleneimine coatings for bioresorbable implant applications
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A TA–PEI coating on magnesium successfully achieved a tolerable corrosion rate for biodegradable implant applications.
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MgF2 and polymeric coatings functioned as dual corrosion-inhibiting barriers: MgF2 physically isolated substrate, and PDA/PEI chemically sequestered Mg2+ via catechol-mediated metal chelation.
“Mechanistically, inorganic MgF2 layer and polymeric coatings might have functioned as dual corrosion-inhibiting barriers (Fig. 2i): the former physically isolated the substrate from corrosive media, while the latter chemically sequestered Mg2+ ions via catechol-mediated metal chelation in the PDA/PEI interlayer [25], preventing substrate dissolution.”
From Nanocatalytic magnesium osteoimplants with biodegradable self-adaptive interfaces for therapeutic repair of infected bone defects (2026) · cites this paper as [25]
Section 3.3.2 reports that TA–PEI coatings reduce corrosion by making it harder for corrosive fluid to reach the Mg substrate, supporting the general polymer-barrier mechanism. But Sections 2.1–2.2 identify the studied coating as tannic acid–PEI, not MgF2 and PDA/PEI; the Introduction describes catechol-mediated crosslinking with PEI, not chelation that sequesters Mg2+. The cited paper therefore does not support the claimed dual-layer composition or chemical mechanism. (LLM, conf=0.87)
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References 74 · Cited by 8
Research works printed but not linked: 4
- P. E. R. Richard, L. Drake, A. Wayne Vogl, A. W. M. Mitchell and R. M. Tibbitts, Gray's Atlas of Anatomy, International Edition, 2015, pp. 134-206. Available: www.elsevier.com% 0Awww.bookaid.org.
- H. Lee, S. M. Dellatore, W. M. Miller and P. B. Messersmith, Mussel-Inspired Surface Chemistry for Multifunctional Coatings, J. Chem. Inf. Model., 2019, 53(9), 1689-1699.
- M. Serhan, et al., A one-step tannic acid coating to improve cell adhesion and proliferation on polydimethylsiloxane, AIChE Annu. Meet., Conf. Proc., 2020, 44, 15140-15147.
- © 2023 The Author(s). Published by the Royal Society of Chemistry Mater. Adv., 2023, 4, 1590-1603 | 1603
- Authors
- Daniel, Leonardo, M., Nursatya, S. M., Barlian, A., Prajatelistia, E., & Judawisastra, H.
- Affiliations
- Materials Science and Engineering Study Program, Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132, Indonesia
- Bandung Institute of Technology (ID)
- Corresponding author
- Prajatelistia, Ekavianty
- Judawisastra, Hermawan
- ORCID
- Venue
- Materials Advances
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2023
- Volume
- 4
- Issue
- 6
- Pages
- 1590-1603
- ISSN
- 2633-5409 (ISSN-L)
- OpenAlex
- W4322749735
- Cited by
- 8
- References
- 74
- Citations by year
- 2026: 2 · 2025: 2 · 2024: 3 · 2023: 1
- FWCI
- 0.51
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Materials Advances (publishedVersion, cc-by)
- Topics
- Physical Sciences › Materials Science › Biomaterials › Magnesium Alloys: Properties and Applications
- Physical Sciences › Materials Science › Materials Chemistry › Titanium Alloys Microstructure and Properties
- Physical Sciences › Materials Science › Materials Chemistry › Corrosion Behavior and Inhibition
- Keywords
- magnesium corrosion, tannic acid, polyethyleneimine, biodegradable implants, corrosion resistance, surface coating, corrosion rate
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