| Title: | Green inhibition of microbiologically influenced corrosion on 316L stainless steel by Artemisia annua extract |
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| Authors: | ID Zlatić Jelić, Gloria (Author)
ID Martinović, Ivana (Author)
ID Pilić, Zora (Author)
ID Kovač, Janez, Institut "Jožef Stefan" (Author)
ID Romić, Marcela (Author) |
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| Files: |  URL - Source URL, visit https://www.sciencedirect.com/science/article/pii/S2773207X26000412?via%3Dihub
 PDF - Presentation file, download (6,59 MB)
MD5: D6994F3727C68E9666EF9E722DB90B2E
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  IJS - Jožef Stefan Institute
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| Abstract: | 316L stainless steel is widely used in marine and biomedical applications. However, its protective Cr-rich passive film can be destabilized by microbiologically influenced corrosion (MIC). Here, a multidisciplinary approach combining electrochemical impedance spectroscopy (EIS), potentiodynamic polarization (PP), optical profilometry, ATR-FTIR, X-ray photoelectron spectroscopy (XPS), and ICP-OES was used to investigate corrosion behavior and passive film chemistry of 316L stainless steel (SS) exposed to Pseudomonas aeruginosa in artificial seawater, and to evaluate the inhibitory effect of an aqueous Artemisia annua extract (AAE). Exposure to P. aeruginosa, resulted in a marked decrease in film resistance, increased corrosion current density, enhanced Fe dissolution, and pronounced surface pitting. Although biotic exposure increased the apparent oxide thickness, XPS analysis revealed the formation of a chemically heterogeneous and less protective surface layer. In contrast, the addition of AAE significantly mitigated these effects by stabilizing a Cr-enriched passive film, increasing charge-transfer resistance, reducing jcor, and suppressing localized attack. ATR-FTIR confirmed adsorption of phenolic acids from AAE, while XPS depth profiling revealed stabilization and thickening of the passive layer. The inhibition efficiency of AAE, evaluated by PP, EIS, and ICP-OES, ranged from 65% to 83%, demonstrating consistent protective behavior across all methods. These results indicate that A. annua extract acts as a plant-derived corrosion inhibitor that preserves the functional stability of the Cr-rich passive film under MIC conditions, offering a promising strategy for corrosion mitigation in marine environments. |
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| Keywords: | biofilm formation, electrochemical impendance spectroscopy, seawater corrosion, ATR-FTIR spectroscopy, X‑ray photoelectron spectroscopy, passive film stability |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 31.12.2025 |
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| Article acceptance date: | 03.03.2026 |
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| Publication date: | 05.03.2026 |
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| Publisher: | Elsevier |
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| Year of publishing: | 2026 |
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| Number of pages: | str. 1-11 |
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| Numbering: | Vol. 13, [article no.] 100639 |
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| Source: | Nizozemska |
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| PID: | 20.500.12556/DiRROS-28473  |
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| UDC: | 620.1/.2 |
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| ISSN on article: | 2773-207X |
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| DOI: | 10.1016/j.hybadv.2026.100639 |
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| COBISS.SI-ID: | 272000259 |
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| Copyright: | © 2026 The Authors. |
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| Note: | Nasl. z nasl. zaslona;
Soavtorji: Ivana Martinović, Zora Pilić, Janez Kovač, Marcela Romić;
Opis vira z dne 17. 3. 2026;
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| Publication date in DiRROS: | 20.03.2026 |
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| Views: | 228 |
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| Downloads: | 148 |
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