Environmentally Friendly Marine Antifouling Coating Based on a Synergistic Strategy

Xie, Changhai; Guo, Hongshuang; Zhao, Weiqiang; Zhang, Lei

doi:10.1021/acs.langmuir.9b03764

Cited by 51 publications

(24 citation statements)

References 54 publications

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“…We provide evidence that, after short exposition times, the B. licheniformis MCE prevents B. neritina larvae settlement at low concentrations, with an EC50 of 37.90 mg/L, without inducing mortality, in contrast with the effect of commercial anti-fouling biocides such as copper pyrithione, which usually causes the death of larvae within 24 h. The lethality observed at the end of the 48 h bioassay probably reflects the experimental conditions with a small volume of water. In the field, we can hypothesize that upon coming in contact with a coating leaching the B. licheniformis inhibitory compound, the larvae would swim away and seek an alternative settlement surface, as reported for natural deterrents produced by invertebrates and other fouling repellents (Krug, 2006;Xie et al, 2020). Although other commercial compounds such as the QS-blockers triclosan and furanone can inhibit B. neritina larval settlement (Dobretsov et al, 2007), they also exhibit toxicity, and therefore, their use should be limited (Rasch et al, 2004;Dann and Hontela, 2011).…”

Section: Discussionmentioning

confidence: 98%

“…Different strategies are being explored, including the use of non-bionic anti-fouling technologies (Tian et al, 2021) and the application of bioinspired strategies, such as bioinspired polymeric anti-fouling coatings, and biomimetic surface microtopographies (Chen et al, 2021;Tian et al, 2021). The simultaneous use of multiple antifouling approaches that act synergistically has been proposed in order to reduce the toxicity and increase the effectiveness of the anti-fouling coatings (Xie et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of the Anti-fouling Efficacy of Bacillus licheniformis Extracts Under Environmental and Natural Conditions

et al. 2021

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There is an increasing interest in developing innovative coatings and testing natural products with anti-fouling activity to substitute current highly toxic biocides that have a harmful impact on marine organisms. Bacillus licheniformis species have shown different anti-biofilm and anti-fouling activities in vitro, but so far, its efficacy in field trials has not been tested. For this purpose, the capacity of different extracts of B. licheniformis NCTC 10341T to prevent micro and macro-fouling was first tested in vitro. The methanol cell extract (MCE) inhibited bacterial biofilm formation without significantly affecting planktonic growth and displayed a significant efficacy to prevent larval settlement of the macro-fouler Bugula neritina in vitro without inducing lethality. Additionally, the MCE presented low toxicity against the non-target species Artemia salina. The B. licheniformis MCE was then incorporated in a self-polishing paint at 2 and 5% w/w and tested in a static immersion experiment in the Gulf of Aqaba (northern Red Sea) for 180 days. Fouling coverage decreased by 30% in the 5% MCE-treated panels in comparison with the control panels. Differences in the anti-biofilm activity of the extracts depending on the culture medium highlight the importance of the strict control of culture conditions for the production of biomass with stable bioactive activity. The results indicate the potential of B. licheniformis NCTC 10341T crude extracts for environmentally friendly anti-fouling applications, although a deeper characterization of the bioactive compounds present in the B. licheniformis MCE and its mode of action is required to allow strict control of the activity of the extracts to achieve large-scale industrial production.

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Section: Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Evaluation of the Anti-fouling Efficacy of Bacillus licheniformis Extracts Under Environmental and Natural Conditions

et al. 2021

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“…Xie et al [ 80 ] designed a new type of antifouling costing with a longer period of validity based on a synergistic antifouling strategy. As shown in Figure 19 , the antifouling paint is made of polyacrylates, tert-butyldimethylsilyl methacrylate (TBSM), eugenol methacrylate (EM) and poly(vinylpyrrolidone) (PVP).…”

Section: Marine Antifouling Coatingmentioning

confidence: 99%

“… Preparation of synergistic antifouling coating [ 80 ]. ( a ) Schematic diagram of coating preparation.…”

Section: Figurementioning

confidence: 99%

Research Strategies to Develop Environmentally Friendly Marine Antifouling Coatings

Mou

et al. 2020

Marine Drugs

157

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There are a large number of fouling organisms in the ocean, which easily attach to the surface of ships, oil platforms and breeding facilities, corrode the surface of equipment, accelerate the aging of equipment, affect the stability and safety of marine facilities and cause serious economic losses. Antifouling coating is an effective method to prevent marine biological fouling. Traditional organic tin and copper oxide coatings are toxic and will contaminate seawater and destroy marine ecology and have been banned or restricted. Environmentally friendly antifouling coatings have become a research hotspot. Among them, the use of natural biological products with antifouling activity as antifouling agents is an important research direction. In addition, some fouling release coatings without antifoulants, biomimetic coatings, photocatalytic coatings and other novel antifouling coatings have also developed rapidly. On the basis of revealing the mechanism of marine biofouling, this paper reviews the latest research strategies to develop environmentally friendly marine antifouling coatings. The composition, antifouling characteristics, antifouling mechanism and effects of various coatings were analyzed emphatically. Finally, the development prospects and future development directions of marine antifouling coatings are forecasted.

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“…The design of environmentally friendly antimicrobial polymers is part of an important research field posing challenges, such as metal-free technologies that inhibit the growth of microorganisms (fungi/algae/parasites) on ship reefs or fishing nets (biofouling) [ 1 , 2 , 3 ]. Especially in the case of fish farming, biofouling is a critical economic and environmental problem, as it leads to reduced efficiency and increased cleaning costs and often harms the ecosystem due to the biostatic substances used so far.…”

Section: Introductionmentioning

confidence: 99%

Environmentally Friendly Cross-Linked Antifouling Coatings Based on Dual Antimicrobial Action

Lainioti

Tsapikouni

Druvari

et al. 2021

IJMS

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The synthesis of environmentally friendly antimicrobial polymeric coatings, especially in the case of aquaculture, that inhibit the growth of bio-deposits is a very important issue that will contribute to the cost reduction of nets’ cleaning process as well as the protection of the submarine wealth from the biostatic substances used so far. In the present work, the antimicrobial polymers P(SSAmC16-co-VBCHAMx) and the terpolymer P(SSAmC16w-co-VBCHAMx-co-GMAy) were synthesized, bearing quaternary ammonium compounds, electrostatically bound and covalently attached at the same polymer chain. The combination of the two types is of particular importance, as it can provide effective antimicrobial polymeric materials with self-polishing capabilities as a result of the released nature of the antimicrobial, in combination with the permanent local action of the immobilized species. The cross-linking reaction of the terpolymer P(SSAmC16w-co-VBCHAMx-co-GMAy) with the homopolymer polyacrylic acid (PAA) was tested at 120 °C in terms of the equivalent ratio between epoxy and carboxyl groups. The synthesized polymers were further used for the coating of aquaculture nets and tested in terms of antifouling efficiency in lab and scale-up conditions. Uncoated nets were also used in all applications for comparison reasons. The coated nets performed efficiently for 35 days in lab-scale and 66 days in scale-up conditions, showing a high antifouling activity in both fields compared to the uncoated nets.

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Environmentally Friendly Marine Antifouling Coating Based on a Synergistic Strategy

Cited by 51 publications

References 54 publications

Evaluation of the Anti-fouling Efficacy of Bacillus licheniformis Extracts Under Environmental and Natural Conditions

Evaluation of the Anti-fouling Efficacy of Bacillus licheniformis Extracts Under Environmental and Natural Conditions

Research Strategies to Develop Environmentally Friendly Marine Antifouling Coatings

Environmentally Friendly Cross-Linked Antifouling Coatings Based on Dual Antimicrobial Action

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