Beyond the marine antifouling activity: the environmental fate of commercial biocides and other antifouling agents under development

Vilas-Boas, Cátia; Almeida, Joana R.; Tiritan, Maria Elizabeth; Correia-da-Silva, Marta

doi:10.1016/b978-0-323-91762-9.00001-0

Cited by 3 publications

(2 citation statements)

References 70 publications

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“…The study of degradation of antifouling compounds is also important for understanding the long-term persistence of an antifouling compound in the environment. These assays should be assessed under representative conditions of pH, temperature, light, and microbial community [45]. It should be noted that only isoflavone genistein (100) was evaluated for its degradation behavior in a marine environment.…”

Section: Discussionmentioning

confidence: 99%

“…The Kaempferol glucoside (kaempferol 3-O-(2",6"-di-O-(E)-p-coumaroyl-β-D-glucopyranoside, 62), isolated for the first time from the leaves of Quercus dentata, was the first The same research group showed that 2-methoxy-2 ,4 -dichlorochalcone (45), mixed with a marine paint and coated on polycarbonate (PC), polymethylmethacrylate (PMMA), and a glass-fiber-reinforced plastic (GFRP) surface, inhibited the marine bacterium V. natriegens biofilm [15]. This coated surface was also compared with surfaces coated with marine paint without any additive and the one mixed with copper (1%), and it was found that surfaces coated with the paint containing the 0.423 µM of 2-methoxy-2 ,4dichlorochalcone were the most effective amongst these three in reducing the amount of biofilm as well as its thickness.…”

Section: Flavonolsmentioning

confidence: 99%

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The Role of Natural and Synthetic Flavonoids in the Prevention of Marine Biofouling

Pereira,

Pinto,

Almeida

et al. 2024

Marine Drugs

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Marine biofouling is a major concern for the maritime industry, environment, and human health. Biocides which are currently used in marine coatings to prevent this phenomenon are toxic to the marine environment, and therefore a search for antifoulants with environmentally safe properties is needed. A large number of scientific papers have been published showing natural and synthetic compounds with potential to prevent the attachment of macro- and microfouling marine organisms on submerged surfaces. Flavonoids are a class of compounds which are highly present in nature, including in marine organisms, and have been found in a wide range of biological activities. Some natural and synthetic flavonoids have been evaluated over the last few years for their potential to prevent the settlement and/or the growth of marine organisms on submerged structures, thereby preventing marine biofouling. This review compiles, for the first-time, natural flavonoids as well as their synthetic analogues with attributed antifouling activity against macrofouling and microfouling marine organisms.

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Section: Discussionmentioning

confidence: 99%

Section: Flavonolsmentioning

confidence: 99%

The Role of Natural and Synthetic Flavonoids in the Prevention of Marine Biofouling

Pereira,

Pinto,

Almeida

et al. 2024

Marine Drugs

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Creating New Antifoulants Using the Tools and Tactics of Medicinal Chemistry

Cahill,

Moodie,

Hertzer

et al. 2024

Acc. Chem. Res.

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Metrics & MoreArticle Recommendations CONSPECTUS:The unwanted accumulation of marine micro-and macroorganisms such as algae and barnacles on submerged man-made structures and vessel hulls is a major challenge for any marine operation. Known as biofouling, this problem leads to reduced hydrodynamic efficiency, significantly increased fuel usage, microbially induced corrosion, and, if not managed appropriately, eventual loss of both performance and structural integrity. Ship hull biofouling in the international maritime transport network conservatively accounts for 0.6% of global carbon emissions, highlighting the global scale and the importance of this problem. Improved antifouling strategies to limit surface colonization are paramount for essential activities such as shipping, aquaculture, desalination, and the marine renewable energy sector, representing both a multibillion dollar cost and a substantial practical challenge. From an ecological perspective, biofouling is a primary contributor to the global spread of invasive marine species, which has extensive implications for the marine environment.Historically, heavy metal-based toxic biocides have been used to control biofouling. However, their unwanted collateral ecological damage on nontarget species and bioaccumulation has led to recent global bans. With expanding human activities within aquaculture and offshore energy, it is both urgent and apparent that environmentally friendly surface protection remains key for maintaining the function of both moving and stationary marine structures. Biofouling communities are typically a highly complex network of both micro-and macroorganisms, representing a broad section of life from bacteria to macrophytes and animals. Given this diversity, it is unrealistic to expect that a single antifouling "silver bullet" will prevent colonization with the exception of generally toxic biocides.For that reason, modern and future antifouling solutions are anticipated to rely on novel coating technologies and "combination therapies" where mixtures of narrow-spectrum bioactive components are used to provide coverage across fouling species. In contrast to the existing cohort of outdated, toxic antifouling strategies, such as copper-and tributyltin-releasing paints, modern drug discovery techniques are increasingly being employed for the rational design of effective yet safe alternatives. The challenge for a medicinal chemistry approach is to effectively account for the large taxonomic diversity among fouling organisms combined with a lack of welldefined conserved molecular targets within most taxa. The current Account summarizes our work employing the tools of modern medicinal chemistry to discover, modify, and develop optimized and scalable antifouling solutions based on naturally occurring antifouling and repelling compounds from both marine and terrestrial sources. Inspiration for rational design comes from targeted studies on allelopathic natural products, natural repelling peptides, and secondary metabolites from sessile marine org...

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Sustainable hydrology through an Eco-friendly Xanthone-based approach in coating solutions

Mendioroz,

Ferrelli

2024

IJH

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Traditional antifouling (AF) biocides have raised environmental concerns, prompting a search for sustainable alternatives. This study addresses this pressing issue by reviewing xanthone derivatives as promising candidates for environmentally friendly AF coatings, showcasing a balance between enhanced AF activity and minimal environmental impact. Furthermore, an innovative, scalable, and highly versatile methodology based on a green nanopalladium-supported catalyst on biochar is presented as an interesting alternative to synthesize diverse xanthone derivatives. This approach aligns with sustainable practices in organic synthesis and expands the repertoire of potential antifouling solutions.

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Beyond the marine antifouling activity: the environmental fate of commercial biocides and other antifouling agents under development

Cited by 3 publications

References 70 publications

The Role of Natural and Synthetic Flavonoids in the Prevention of Marine Biofouling

The Role of Natural and Synthetic Flavonoids in the Prevention of Marine Biofouling

Creating New Antifoulants Using the Tools and Tactics of Medicinal Chemistry

Sustainable hydrology through an Eco-friendly Xanthone-based approach in coating solutions

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