Evidence map›Paper›PMID 42876747›Full record

ArticleFrontiers in chemistry2026

Development of alkyd-based copper sorbate coatings for anti-corrosion and anti-biofouling applications.

Manikandan Thiyagarajan, Subramania Angaiah, Chao Yan, Parthipan Punniyakotti

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Article in Frontiers in chemistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

4 authors.

Manikandan ThiyagarajanSchool of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, China.
Subramania AngaiahSchool of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, China.
Chao YanSchool of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, China.
Parthipan PunniyakottiDepartment of Biotechnology, Faculty of Science and Humanities, SRM Institute of Science and Technology, Chengalpattu, Tamil Nadu, India.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction: Biofouling is a serious problem in various industrial sectors such as shipping infrastructure, cooling water systems, and aquaculture. Biofilm formation by different types of microorganisms plays a very crucial role in this biofouling process. Biofouling on metallic surfaces accelerates aggressive corrosion processes. Therefore, it is essential to develop antifouling coatings with corrosion resistance for effective protection. Methods: In the present study, copper sorbate (CS) and copper oxide (CuO) were synthesized as antifouling pigments and characterized using a UV-vis spectrometer, Fourier transform infrared spectroscopy, X-ray diffraction, and field emission scanning electron microscopy. Both pigments in different ratios were used for the formulation of antifouling and anti-corrosion paints. Salt spray test and anti-corrosion test were performed in the presence of 3.5% NaCl solution for 30 days. Electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization were recorded for all the tested specimens. Results and Discussion: The results indicate that CS-rich coatings (15%20% of CS) display higher corrosion resistance than CuO-rich coatings. The antifouling potential of the coated mild steel was evaluated by immersing them in the marine estuarine water, and surface changes were monitored at regular intervals. All coatings exhibited considerable antifouling effects up to 60 days of immersion. Notably, the CS-II coating, containing only 5% CuO with 15% of CS, showed significant fouling resistance up to 90 days. At the end of 120 days, SEM analysis confirmed that a huge number of marine microorganisms (mostly diatoms) settled on CS-I, CS-III, CS-IV, and CS-V, but minimal microorganisms were only noticed on CS-II. This could be due to the antimicrobial activity and controlled leaching behavior of both pigments in marine conditions.

Indexed as

alkyd paintanti-corrosionbiofoulingcopper sorbateelectrochemical impedance spectroscopy

Identifiers

PMID42876747
PMCPMC13661454

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