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Barnacle cement protein as an efficient bioinspired corrosion inhibitor
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Abstract
To prevent corrosion damage in aggressive environments such as seawater, metallic surfaces are coated with corrosion inhibitors usually made of organic molecules. Unfortunately, these inhibitors often exhibit environmental toxicity and are hazardous to natural habitats. Thus, developing greener and effective corrosion inhibitors is desirable. Here, we present an alternative green inhibitor, the recombinant protein r MrCP20 derived from the adhesive cement of the barnacle Megabalanus rosa and show that it efficiently protects mild steel against corrosion under high salt conditions mimicking the marine environment. We reveal that these anti-corrosion properties are linked to the protein’s biophysical properties, namely its strong adsorption to surfaces combined with its interaction with Fe ions released by steel substrates, which forms a stable layer that increases the coating’s impedance and delays corrosion. Our findings highlight the synergistic action of r MrCP20 in preventing corrosion and provide molecular-level guidelines to develop alternative green corrosion inhibitor additives.
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Highly accurate protein structure prediction with AlphaFold
Jumper, J., Evans, R., Pritzel, A., Green, T., Figurnov, M., Ronneberger, O., Tunyasuvunakool, K., Bates, R., Žídek, A., Potapenko, A., et al. (2021) · Nature · doi:10.1038/s41586-021-03819-2 · Cited by 43,764
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Metadata
- Authors
- Bui, M. H., Hiew, S. H., Salim, T., Saw, W. G., Webster, R. D., Grüber, G., Mu, Y., & Miserez, A.
- Affiliations
- Nanyang Technological University (SG)
- Corresponding author
- Miserez, Ali
- ORCID
- Venue
- Communications Materials
- Published
- 2024-02-23
- Volume
- 5
- Issue
- 1
- ISSN
- 2662-4443 (ISSN-L)
- OpenAlex
- W4392103860
- Cited by
- 12
- References
- 1
- Citations by year
- 2026: 7 · 2025: 2 · 2024: 3
- FWCI
- 1.17
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- Communications Materials (publishedVersion, cc-by)
- Research Square (acceptedVersion, cc-by)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
- DR-NTU (Nanyang Technological University) (submittedVersion, cc-by)
- Funders
- Defense Science and Technology Agency (DSTA), Singapore. Project MIZU.
- Topics
- Physical Sciences › Materials Science › Materials Chemistry › Corrosion Behavior and Inhibition
- Physical Sciences › Engineering › Ocean Engineering › Marine Biology and Environmental Chemistry
- Physical Sciences › Materials Science › Surfaces, Coatings and Films › Polymer Surface Interaction Studies
- Keywords
- Megabalanus rosa, corrosion inhibition, green corrosion inhibitors, mild steel, seawater corrosion, protein adsorption, bioinspired coatings, recombinant protein
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