Antifouling Coatings Inspired by Biological Templates

Macromolecular Rapid Communications, Год журнала: 2025, Номер unknown

Опубликована: Март 3, 2025

Abstract Surface fouling is a major concern in health care, marine industry, and water purification plants. Polymeric coatings are traditionally utilized to reduce the attachment of foulants on surface, however low density thickness polymer brushes formed by surface initiated polymerization methods, exhaustion continuous exposure foulants, mechanical vulnerability harsh environments, limit antifouling performance these traditional coatings. Recent trends bioinspired polymeric combine properties super‐hydrophobic, highly hydrated lubricating polymers with micro‐ nano‐particles yield contact active, foulant releasable stimuli responsive materials superior performance. This review specifically highlights development next generation bioactive using nature as an inspiration discussion their benefits, over The obtained further evaluated for potential applications environment, delivery carriers, implants, biosensors, urinary catheters.

Язык: Английский

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Transparent, Flexible, Responsive Switching “Delayed” Amphiphilic Coatings Designed on the Basis of the Full-Cycle Antifouling Strategy

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(44), С. 61249 - 61261

Опубликована: Окт. 23, 2024

Marine fouling on the surface of ships and equipment not only creates problems enhanced resistance to navigation increased energy consumption but also leads unclear vision inaccurate data collection. Antifouling coatings resist are effective, it is difficult achieve long-lasting protection with a single interface state. Switching status by intelligent response reasonable way full-cycle efficient antifouling. In this study, hydrophobic active antifouling in initial state was achieved adopting fluorine-containing group natural extract (citronellol) as site. The switching relies silanes, which respond generation zwitterions seawater environment. Eventually, switched from amphiphilic delayed formation, continued Based concept, combination low ingredients sustainably surfaces midterm (free radicals generated during hydrolysis process), interfaces formed "delays" produced an effect stage subsequent stage. excellent activity (bacterial diatom attachment inhibition over 90% significantly reduced mussel adhesion force), optical transparency, flexibility these indicate potential for application prepared hyperbranched silicone-based resins; they can be used extraction sensors, underwater probes, marine photovoltaics, other areas where transparency required.

Язык: Английский

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Zwitterionic Cellulose Nanocrystals/Deacetylated Chitin Nanofiber Combined with SiO₂ Hybrid Coatings: An Innovative Approach to Marine Antifouling

Industrial & Engineering Chemistry Research, Год журнала: 2025, Номер unknown

Опубликована: Янв. 13, 2025

Marine biofouling poses many hazards to human activities. The introduction of zwitterionic agents as green and sustainable antibacterial into antifouling coatings exhibits excellent performance. In this work, cellulose nanocrystals (CNCs) deacetylated chitin nanofibers (DECHNs) were cross-linked through electrostatic interactions, hydrophobic SiO2 was used the coating curing agent prepare CNC/DECHN@SiO2 marine coatings. results showed that when proportion CNCs components 50%, exhibited a 93% rate an 88% antialgae rate. actual environment testing, comprehensive resistance reached within 60 days. Our research introduces two natural with opposite charges construct complexes, innovatively applying them directly in This work not only provides solution for replacing toxic but also offers new ideas using polymers agents.

Язык: Английский

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Research Advances in Low Surface Energy Antifouling Coatings for Ships With Structural Bionic Properties

Polymers for Advanced Technologies, Год журнала: 2025, Номер 36(3)

Опубликована: Март 1, 2025

ABSTRACT Ship surface fouling poses serious constraints on ship navigation and the marine environment. Now that traditionally harmful antifouling coatings have been banned worldwide, development of new for ships are environmentally friendly functionally stable is imminent. Low energy with structural biomimetic properties safest, most friendly, effective breakthrough in preventing deposits hull surfaces. This article first explains mechanism coatings, comprehensively describes morphology bionic microstructure, summarizes construction method structure. On this basis, low fluorine‐containing silicone‐containing materials, as well current application ships, analyzed. In addition, stimulus–response coatings. reviews research progress based structures recent years, presents challenges future directions field, provides unique insights to further optimize performance these

Язык: Английский

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Electron-Withdrawing Effects for Tailoring Oxidative-Stress-Mediated Coating in Marine Antifouling

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Март 23, 2025

Oxidative stress derived from excess reactive oxygen radicals (ROS) induces cellular damage, apoptosis, and necrosis, thus effective biofouling control by directly inhibiting primary membrane formation. However, the oxidative produced that does not rely on additional energy still is a challenge. Herein, an oxidative-stress-mediated marine antifouling polyurea coating prepared leveraging strong electron absorption effect of C═N. Given structure urethane bond, reversible reaction barrier dynamic bond can be reduced, thereby enabling to broken without need for energy. The alkyl radical (R·) originating oxime-urethane mediate induction in cells microbial death, preserving exceptional properties resisting most organism adhere substrates. Notably, indicates satisfactory antibacterial antialgae performance exhibits 8 months field performance. In addition, investigated theoretical calculation, interface behavior molecular dynamics simulation. This work presents pioneering example construction coating, which might judicious design strategy environmentally friendly coating.

Язык: Английский

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Research Progress of Self-Healing Coatings on Ships Against Biological Pollution: A Review

Coatings, Год журнала: 2025, Номер 15(4), С. 486 - 486

Опубликована: Апрель 19, 2025

Marine biofouling is a well-established and significant challenge for the maritime industry. Self-healing coatings applied to ships have demonstrated superior surface properties, including enhanced corrosion resistance ability mitigate biological contamination. Consequently, numerous studies been conducted assess different self-repairing coatings, which incorporate mechanisms such as microcapsules, dynamic covalent bonds, ion exchange. This review begins with an introduction process of formation. It then provides comprehensive outline self-healing that developed improve wear resistance, summarizing advancements in this area. Finally, building upon these three coating systems, paper offers summary fabrication protection technologies preparation micro/nano containers, warning mechanisms, intelligent responsive protection. Furthermore, explores future prospects offering valuable insights researchers field. The potential limitations their application scenarios are also addressed.

Язык: Английский

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Dynamic polymers based on oxime-urethane chemistry: design, performances, and applications

Science China Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Дек. 5, 2024

Язык: Английский

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