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Lavrador AS, Amaral FG, Moutinho J, Vieira PE, Costa FO, Duarte S. Comprehensive DNA metabarcoding-based detection of non-indigenous invertebrates in recreational marinas through a multi-substrate approach. MARINE ENVIRONMENTAL RESEARCH 2024; 200:106660. [PMID: 39088889 DOI: 10.1016/j.marenvres.2024.106660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 07/15/2024] [Accepted: 07/29/2024] [Indexed: 08/03/2024]
Abstract
eDNA metabarcoding has been increasingly employed in the monitoring of marine invertebrate non-indigenous species (NIS), in particular using filtered seawater. However, comprehensive detection of all NIS may require a diversity of sampling substrates. To assess the effectiveness of 5 sample types (hard and artificial substrates, water, zooplankton) on the recovery of invertebrates' diversity, two marinas were monitored over three time points, using COI and 18S rRNA genes as DNA metabarcoding markers. We detected a total of 628 species and 23 NIS, with only up to 9% species and 17% of NIS detected by all sample types. Hard and artificial substrates were similar to each other but displayed the most significant difference in invertebrate recovery when compared to water eDNA and zooplankton. Five NIS are potential first records for Portugal. No NIS were detected in all sample types and seasons, highlighting the need for varied sampling approaches, and consideration of temporal variation for comprehensive marine NIS surveillance.
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Affiliation(s)
- Ana S Lavrador
- Centre of Molecular and Environmental Biology (CBMA) and ARNET-Aquatic Research Network, Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal; Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal.
| | - Fábio G Amaral
- Centre of Molecular and Environmental Biology (CBMA) and ARNET-Aquatic Research Network, Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal; Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Jorge Moutinho
- Centre of Molecular and Environmental Biology (CBMA) and ARNET-Aquatic Research Network, Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal; Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Pedro E Vieira
- Centre of Molecular and Environmental Biology (CBMA) and ARNET-Aquatic Research Network, Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal; Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Filipe O Costa
- Centre of Molecular and Environmental Biology (CBMA) and ARNET-Aquatic Research Network, Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal; Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Sofia Duarte
- Centre of Molecular and Environmental Biology (CBMA) and ARNET-Aquatic Research Network, Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal; Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
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Marzullo P, Gruttadauria M, D’Anna F. Quaternary Ammonium Salts-Based Materials: A Review on Environmental Toxicity, Anti-Fouling Mechanisms and Applications in Marine and Water Treatment Industries. Biomolecules 2024; 14:957. [PMID: 39199346 PMCID: PMC11352365 DOI: 10.3390/biom14080957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2024] [Revised: 08/03/2024] [Accepted: 08/06/2024] [Indexed: 09/01/2024] Open
Abstract
The adherence of pathogenic microorganisms to surfaces and their association to form antibiotic-resistant biofilms threatens public health and affects several industrial sectors with significant economic losses. For this reason, the medical, pharmaceutical and materials science communities are exploring more effective anti-fouling approaches. This review focuses on the anti-fouling properties, structure-activity relationships and environmental toxicity of quaternary ammonium salts (QAS) and, as a subclass, ionic liquid compounds. Greener alternatives such as QAS-based antimicrobial polymers with biocide release, non-fouling (i.e., PEG, zwitterions), fouling release (i.e., poly(dimethylsiloxanes), fluorocarbon) and contact killing properties are highlighted. We also report on dual-functional polymers and stimuli-responsive materials. Given the economic and environmental impacts of biofilms in submerged surfaces, we emphasize the importance of less explored QAS-based anti-fouling approaches in the marine industry and in developing efficient membranes for water treatment systems.
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Affiliation(s)
- Paola Marzullo
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, 90128 Palermo, Italy; (M.G.); (F.D.)
- Sustainable Mobility Center (Centro Nazionale per la Mobilità Sostenibile—CNMS), Via Durando 39, 20158 Milano, Italy
| | - Michelangelo Gruttadauria
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, 90128 Palermo, Italy; (M.G.); (F.D.)
- Sustainable Mobility Center (Centro Nazionale per la Mobilità Sostenibile—CNMS), Via Durando 39, 20158 Milano, Italy
| | - Francesca D’Anna
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, 90128 Palermo, Italy; (M.G.); (F.D.)
- Sustainable Mobility Center (Centro Nazionale per la Mobilità Sostenibile—CNMS), Via Durando 39, 20158 Milano, Italy
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3
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Khan MAR, Wang BW, Lin HC, Yang YL, Liaw CC. Structure-Functional Activity of Pyrone Derivatives for Inhibition of Barnacle Settlement and Biofilm Formation. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2024:10.1007/s10126-024-10349-1. [PMID: 39066983 DOI: 10.1007/s10126-024-10349-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 07/18/2024] [Indexed: 07/30/2024]
Abstract
Naturally occurring 6-pentyl-2H-pyran-2-one and its synthetic analogues greatly inhibit the settlement of Amphibalanus amphitrite cyprids and the growth and biofilm formation of marine bacteria. To optimize the antifouling activities of pyrone derivatives, this study designed pyrone analogues by modifying functional groups, such as the benzyl group, cyclopentane, and halides, substituted on both sides of a pyrone. The antifouling effects of the synthesized pyrone derivatives were subsequently evaluated against five marine biofilm-forming bacteria, Loktanella hongkongensis, Staphylococcus cohnii, S. saprophyticus, Photobacterium angustum, and Alteromonas macleodii, along with barnacle cyprids of Amphibalanus amphitrite. Substituting nonpolar parts-such as the aliphatic, cyclopentyl, or phenyl moieties on C-5 or the furan moieties on C-3-not only increased antibacterial activity and inhibited biofilm formation but also inhibited barnacle cyprid settlement when compared to 6-pentyl-2H-pyran-2-one.
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Affiliation(s)
- Mo Aqib Raza Khan
- Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, Kaohsiung, 80424, Taiwan
| | - Bo-Wei Wang
- Doctoral Degree Program in Marine Biotechnology, National Sun Yat-Sen University, Kaohsiung, 80424, Taiwan
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei, 115, Taiwan
- Biotechnology Center in Southern Taiwan, Academia Sinica, Tainan, 711, Taiwan
| | - Hsiu-Chin Lin
- Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, Kaohsiung, 80424, Taiwan
- Doctoral Degree Program in Marine Biotechnology, National Sun Yat-Sen University, Kaohsiung, 80424, Taiwan
| | - Yu-Liang Yang
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei, 115, Taiwan
- Biotechnology Center in Southern Taiwan, Academia Sinica, Tainan, 711, Taiwan
| | - Chih-Chuang Liaw
- Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, Kaohsiung, 80424, Taiwan.
- Doctoral Degree Program in Marine Biotechnology, National Sun Yat-Sen University, Kaohsiung, 80424, Taiwan.
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
- Graduate Institute of Pharmacognosy, Taipei Medical University, Taipei, 110, Taiwan.
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Pereira D, Almeida JR, Cidade H, Correia-da-Silva M. Proof of Concept of Natural and Synthetic Antifouling Agents in Coatings. Mar Drugs 2024; 22:291. [PMID: 39057400 PMCID: PMC11278152 DOI: 10.3390/md22070291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Revised: 06/21/2024] [Accepted: 06/21/2024] [Indexed: 07/28/2024] Open
Abstract
Marine biofouling, caused by the deposition and accumulation of marine organisms on submerged surfaces, represents a huge concern for the maritime industries and also contributes to environmental pollution and health concerns. The most effective way to prevent this phenomenon is the use of biocide-based coatings which have proven to cause serious damage to marine ecosystems. Several research groups have focused on the search for new environmentally friendly antifoulants, including marine and terrestrial natural products and synthetic analogues. Some of these compounds have been incorporated into marine coatings and display interesting antifouling activities caused by the interference with the biofilm-forming species as well as by the inhibition of the settlement of macroorganisms. This review highlights the proof-of-concept studies of emerging natural or synthetic antifouling compounds in coatings, from lab-made to commercial ones, performed between 2019 and 2023 and their results in the field or in in vivo laboratorial tests.
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Affiliation(s)
- Daniela Pereira
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal;
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, 4450-208 Matosinhos, Portugal;
| | - Joana R. Almeida
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, 4450-208 Matosinhos, Portugal;
| | - Honorina Cidade
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal;
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, 4450-208 Matosinhos, Portugal;
- UNIPRO—Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (CESPU), 4585-116 Gandra, Portugal
| | - Marta Correia-da-Silva
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal;
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, 4450-208 Matosinhos, Portugal;
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5
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Vinagre PA, Fonseca G, Vieira M. Experimental insights on biofouling growth in marine renewable structures. OPEN RESEARCH EUROPE 2024; 2:108. [PMID: 39157204 PMCID: PMC11329864 DOI: 10.12688/openreseurope.14854.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 05/16/2024] [Indexed: 08/20/2024]
Abstract
Background Marine biofouling is a threat to industries working in the marine environment, representing significant costs associated with equipment impairment and loss of performance. In the Marine Renewable Energy (MRE) and other maritime sectors which operate at sea for long periods, an important aspect of biofouling is related to the type and frequency of inspections and biofouling removal procedures. Methods This study investigated important parameters of macrofouling ( e.g. composition, including the presence of non-indigenous species, thickness, and weight) from communities growing on samples that emulate tubular components of marine renewable devices. The trials were performed during short periods of submersion (one to eight weeks) in the seasons when the colonisation process should be most intensive (spring, summer, and autumn). Furthermore, the frictional resistance forces generated during the scraping of biofouling from those components were investigated. Results Overall, results provide insights on the growth rates and removal requirements of biofouling in marine components. The results show that, while biofouling growth in early colonization stages might not present great detrimental effects to wave energy components, the consequent marine corrosion (fostered by biofouling) and the settlement of non-indigenous species (NIS) should be factors of concern. Conclusions Performing biofouling-related maintenance activities after the peak of maximum growth and reproduction (during the warmer seasons in temperate to cold environments) is suggested to reduce the number and frequency of activities. NIS can be detected at very early stages in the colonization process, highlighting the importance of biofouling monitoring and the implementation of biosecurity risk assessment plans early in the operational stage of MRE projects.
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Affiliation(s)
| | - Gonçalo Fonseca
- Engineering and Operations, WavEC Offshore Renewables, Lisbon, Portugal
| | - Mário Vieira
- Engineering and Operations, WavEC Offshore Renewables, Lisbon, Portugal
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Putra NR, Ismail A, Sari DP, Nurcholis N, Murwatono TT, Rina R, Yuniati Y, Suwarni E, Sasmito A, Virliani P, Alif Rahadi SJ, Irianto I, Widati AA. A bibliometric analysis of cellulose anti-fouling in marine environments. Heliyon 2024; 10:e28513. [PMID: 38596028 PMCID: PMC11002589 DOI: 10.1016/j.heliyon.2024.e28513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 04/11/2024] Open
Abstract
Marine biofouling poses significant challenges to maritime industries worldwide, affecting vessel performance, fuel efficiency, and environmental sustainability. These challenges demand innovative and sustainable solutions. In this review, the evolving landscape of cellulose-based materials for anti-fouling applications in marine environments is explored. Through a comprehensive bibliometric analysis, the current state of research is examined, highlighting key trends, emerging technologies, and geographical distributions. Cellulose, derived from renewable resources, offers a promising avenue for sustainable anti-fouling strategies due to its biodegradability, low toxicity, and resistance to microbial attachment. Recent advancements in cellulose-based membranes, coatings, and composites are discussed, showcasing their efficacy in mitigating biofouling while minimizing environmental impact. Opportunities for interdisciplinary collaboration and innovation are identified to drive the development of next-generation anti-fouling solutions. By harnessing the power of cellulose, progress towards cleaner, more sustainable oceans can be facilitated, fostering marine ecosystems and supporting global maritime industries.
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Affiliation(s)
- Nicky Rahmana Putra
- Research Center for Hydrodynamic Technology, National Research and Innovation Agency, Surabaya, Indonesia
| | - Abdi Ismail
- Research Center for Hydrodynamic Technology, National Research and Innovation Agency, Surabaya, Indonesia
| | - Dian Purnama Sari
- Research Center for Hydrodynamic Technology, National Research and Innovation Agency, Surabaya, Indonesia
| | - Nurcholis Nurcholis
- Research Center for Hydrodynamic Technology, National Research and Innovation Agency, Surabaya, Indonesia
| | | | - Rina Rina
- Research Center for Hydrodynamic Technology, National Research and Innovation Agency, Surabaya, Indonesia
| | - Yuniati Yuniati
- Research Center for Hydrodynamic Technology, National Research and Innovation Agency, Surabaya, Indonesia
| | - Endah Suwarni
- Research Center for Hydrodynamic Technology, National Research and Innovation Agency, Surabaya, Indonesia
| | - Agus Sasmito
- Research Center for Hydrodynamic Technology, National Research and Innovation Agency, Surabaya, Indonesia
| | - Putri Virliani
- Research Center for Hydrodynamic Technology, National Research and Innovation Agency, Surabaya, Indonesia
| | - Shinta Johar Alif Rahadi
- Research Center for Hydrodynamic Technology, National Research and Innovation Agency, Surabaya, Indonesia
| | - Irianto Irianto
- Department General Education, Faculty of Resilience, Rabdan Academy, Abu Dhabi, United Arab Emirates
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7
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Hong H, Lv J, Deng A, Tang Y, Liu Z. A review of experimental Assessment Processes of material resistance to marine and freshwater biofouling. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 357:120766. [PMID: 38565032 DOI: 10.1016/j.jenvman.2024.120766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 03/15/2024] [Accepted: 03/24/2024] [Indexed: 04/04/2024]
Abstract
Biofouling presents hazards to a variety of freshwater and marine underwater infrastructures and is one of the direct causes of species invasion. These negative impacts provide a unified goal for both industry practitioners and researchers: the development of novel antifouling materials to prevent the adhesion of biofouling. The prohibition of tributyltin (TBT) by the International Maritime Organization (IMO) in 2001 propelled the research and development of new antifouling materials. However, the evaluation process and framework for these materials remain incomplete and unsystematic. This mini-review starts with the classification and principles of new antifouling materials, discussing and summarizing the methods for assessing their biofouling resistance. The paper also compiles the relevant regulations and environmental requirements from different countries necessary for developing new antifouling materials with commercial potential. It concludes by highlighting the current challenges in antifouling material development and future outlooks. Systematic evaluation of newly developed antifouling materials can lead to the emergence of more genuinely applicable solutions, transitioning from merely laboratory products to materials that can be effectively used in real-world applications.
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Affiliation(s)
- Heting Hong
- School of Mechanical Engineering and Automation, Northeastern University, Shenyang, 110819, China; Wuhan Regional Climate Center, Hubei Meteorological Bureau, Wuhan, 430074, China.
| | - Jiawen Lv
- School of Mechanical Engineering and Automation, Northeastern University, Shenyang, 110819, China
| | - Aijuan Deng
- Wuhan Regional Climate Center, Hubei Meteorological Bureau, Wuhan, 430074, China
| | - Yang Tang
- Wuhan Regional Climate Center, Hubei Meteorological Bureau, Wuhan, 430074, China
| | - Zhixiong Liu
- Wuhan Regional Climate Center, Hubei Meteorological Bureau, Wuhan, 430074, China
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Cahill PL, Moodie LWK, Hertzer C, Pinori E, Pavia H, Hellio C, Brimble MA, Svenson J. Creating New Antifoulants Using the Tools and Tactics of Medicinal Chemistry. Acc Chem Res 2024; 57:399-412. [PMID: 38277792 DOI: 10.1021/acs.accounts.3c00733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2024]
Abstract
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 well-defined 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 organisms with clean exteriors, which has yielded several efficient and promising antifouling leads.
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Affiliation(s)
- Patrick L Cahill
- Cawthron Institute, 98 Halifax Street East, Nelson 7010, New Zealand
| | - Lindon W K Moodie
- Drug Design and Discovery, Department of Medicinal Chemistry, Biomedical Centre, Uppsala University, 75123 Uppsala, Sweden
| | - Cora Hertzer
- Cawthron Institute, 98 Halifax Street East, Nelson 7010, New Zealand
| | - Emiliano Pinori
- RISE Research Institutes of Sweden, Division for Material and Production, 504 62 Borås, Sweden
| | - Henrik Pavia
- Department of Marine Sciences - Tjärnö, University of Gothenburg, SE-452 96 Strömstad, Sweden
| | - Claire Hellio
- Univ. Brest, Laboratoire des Sciences de l'Environnement MARin (LEMAR), CNRS, IRD, IFREMER, Brest 29285, France
| | - Margaret A Brimble
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand
| | - Johan Svenson
- Cawthron Institute, 98 Halifax Street East, Nelson 7010, New Zealand
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Dobson T, Yunnie A, Kaloudis D, Larossa N, Coules H. Biofouling and corrosion rate of welded Nickel Aluminium Bronze in natural and simulated seawater. BIOFOULING 2024; 40:193-208. [PMID: 38456659 DOI: 10.1080/08927014.2024.2326067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 02/24/2024] [Indexed: 03/09/2024]
Abstract
Updated understanding on the effect of biofouling on corrosion rate is needed to protect marine structures as climate change is altering seawater physiochemistry and biofouling organism distribution. Multi-disciplinary techniques can improve understanding of biofouling development and associated corrosion rates on metals immersed in natural seawater (NSW). In this study, the development of biofouling and corrosion on welded Nickel Aluminium Bronze (NAB) was investigated through long-term immersion tests in NSW, simulated seawater (SSW) and air. Biofouling was affected by geographic location within the marina and influenced corrosion extent. The corrosion rate of NAB was accelerated in the initial months of exposure in NSW (1.27 mm.yr-1) and then settled to 0.11 mm.yr-1 (annual average). This was significantly higher than the 0.06 mm.yr-1 corrosion rate measured in SSW, which matched published rates. The results suggest that corrosion rates for cast NAB should be revised to take account of biofouling and updated seawater physiochemistry.
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Affiliation(s)
- Tamsin Dobson
- Solid Mechanics Research Group, University of Bristol, Bristol, UK
| | - Anna Yunnie
- PML Applications Ltd., Plymouth Marine Laboratory, Plymouth, UK
| | | | - Nicolas Larossa
- Solid Mechanics Research Group, University of Bristol, Bristol, UK
| | - Harry Coules
- Solid Mechanics Research Group, University of Bristol, Bristol, UK
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10
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das Mercês Pereira Ferreira A, de Matos JM, Silva LK, Viana JLM, Dos Santos Diniz Freitas M, de Amarante Júnior OP, Franco TCRDS, Brito NM. Assessing the spatiotemporal occurrence and ecological risk of antifouling biocides in a Brazilian estuary. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:3572-3581. [PMID: 38085476 DOI: 10.1007/s11356-023-31286-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 11/24/2023] [Indexed: 01/19/2024]
Abstract
Diuron and Irgarol are common antifouling biocides used in paints to prevent the attachment and growth of fouling organisms on ship hulls and other submerged structures. Concerns about their toxicity to non-target aquatic organisms have led to various restrictions on their use in antifouling paints worldwide. Previous studies have shown the widespread presence of these substances in port areas along the Brazilian coast, with a concentration primarily in the southern part of the country. In this study, we conducted six sampling campaigns over the course of 1 year to assess the presence and associated risks of Diuron and Irgarol in water collected from areas under the influence of the Maranhão Port Complex in the Brazilian Northeast. Our results revealed the absence of Irgarol in the study area, irrespective of the sampling season and site. In contrast, the mean concentrations of Diuron varied between 2.0 ng L-1 and 34.1 ng L-1 and were detected at least once at each sampling site. We conducted a risk assessment of Diuron levels in this area using the risk quotient (RQ) method. Our findings indicated that Diuron levels at all sampling sites during at least one campaign yielded an RQ greater than 1, with a maximum of 22.7, classifying the risk as "high" based on the proposed risk classification. This study underscores the continued concern regarding the presence of antifouling biocides in significant ports and marinas in Brazilian ports, despite international bans.
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Affiliation(s)
- Adriana das Mercês Pereira Ferreira
- Department of Chemistry, Campus São Luís - Monte Castelo, Federal Institute of Education, Science and Technology of Maranhão (IFMA), São Luís, MA, 65030-005, Brazil
| | - Jhuliana Monteiro de Matos
- Department of Chemistry, Campus São Luís - Monte Castelo, Federal Institute of Education, Science and Technology of Maranhão (IFMA), São Luís, MA, 65030-005, Brazil.
| | - Lanna Karinny Silva
- Department of Chemistry, Campus São Luís - Monte Castelo, Federal Institute of Education, Science and Technology of Maranhão (IFMA), São Luís, MA, 65030-005, Brazil
| | - José Lucas Martins Viana
- Universidade Estadual de Campinas, Instituto de Química, P.O. Box 6154, Campinas, SP, 13083-970, Brazil
| | - Marta Dos Santos Diniz Freitas
- Postgraduate Program in Technological and Environmental Chemistry, Federal University of Rio Grande, Rio Grande, RS, 96203-900, Brazil
| | - Ozelito Possidônio de Amarante Júnior
- Department of Chemistry, Campus São Luís - Monte Castelo, Federal Institute of Education, Science and Technology of Maranhão (IFMA), São Luís, MA, 65030-005, Brazil
- Institute of Oceanography, Federal University of Rio Grande, Rio Grande, RS, 96203-900, Brazil
| | | | - Natilene Mesquita Brito
- Department of Chemistry, Campus São Luís - Monte Castelo, Federal Institute of Education, Science and Technology of Maranhão (IFMA), São Luís, MA, 65030-005, Brazil
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11
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Kirkiz I, Cavas L. First Barnacle ( Amphibalanus amphitrite) Adhesion Strength Data on the Self-Polishing Coatings Off the Aegean Sea. ACS OMEGA 2023; 8:33675-33683. [PMID: 37744795 PMCID: PMC10515341 DOI: 10.1021/acsomega.3c03948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 08/30/2023] [Indexed: 09/26/2023]
Abstract
The aim of this work is to study the adhesion strength of Amphibalanus amphitrite in the İzmir Bay and compare the results with the pseudobarnacle adhesion test. Normally, adhesion tests are performed to evaluate the performance of the antifouling coatings, but the test results can also be used to predict biofouling cleaning process efficacy. The biofouling process is highly dependent on environmental conditions. For this reason, laboratory tests are required to perform the performance tests on self-polishing coatings in cases where living organisms cannot be reached. For this purpose, different self-polishing antifouling coatings have been formulated. Field tests for the coatings were carried out in the Aegean Sea for 10 weeks. After 10 weeks, barnacle and pseudobarnacle adhesion tests were conducted on coatings. When the results were compared, similarity was observed between the adhesion strength of barnacles and pseudobarnacles with 10 mm diameter on coating with the rosin/xylene/BaSO4 (40:40:20 w/w %). The adhesion strength of barnacles and pseudobarnacles on the coating 12 was found to be 0.46 and 0.45 MPa, respectively. In conclusion, the present study exhibits the first data related to the adhesion strength of A. amphitrite on rosin-based self-polishing coatings in the Aegean Sea. Moreover, based on field tests, a pseudobarnacle adhesion test methodology was developed to mimic barnacles and the correlation between barnacle and pseudobarnacle tests was examined.
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Affiliation(s)
- Ibrahim Kirkiz
- Graduate
School of Natural and Applied Sciences, Department of Biotechnology, Dokuz Eylül University, Kaynaklar Campus, İzmir 35390, Türkiye
| | - Levent Cavas
- Graduate
School of Natural and Applied Sciences, Department of Biotechnology, Dokuz Eylül University, Kaynaklar Campus, İzmir 35390, Türkiye
- Faculty
of Science, Department of Chemistry (Biochemistry Division), Dokuz Eylül University, Kaynaklar Campus, İzmir 35390, Türkiye
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12
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Davis RA, Cervin G, Beattie KD, Rali T, Fauchon M, Hellio C, Bodin Åkerlund L, Pavia H, Svenson J. Evaluation of natural resveratrol multimers as marine antifoulants. BIOFOULING 2023; 39:775-784. [PMID: 37822262 DOI: 10.1080/08927014.2023.2263374] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 09/18/2023] [Indexed: 10/13/2023]
Abstract
In the current study we investigate the antifouling potential of three polyphenolic resveratrol multimers (-)-hopeaphenol, vaticanol B and vatalbinoside A, isolated from two species of Anisoptera found in the Papua New Guinean rainforest. The compounds were evaluated against the growth and settlement of eight marine microfoulers and against the settlement and metamorphosis of Amphibalanus improvisus barnacle cyprids. The two isomeric compounds (-)-hopeaphenol and vaticanol B displayed a high inhibitory potential against the cyprid larvae metamorphosis at 2.8 and 1.1 μM. (-)-Hopeaphenol was also shown to be a strong inhibitor of both microalgal and bacterial adhesion at submicromolar concentrations with low toxicity. Resveratrol displayed a lower antifouling activity compared to the multimers and had higher off target toxicity against MCR-5 fibroblasts. This study illustrates the potential of natural products as a valuable source for the discovery of novel antifouling leads with low toxicity.
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Affiliation(s)
- Rohan A Davis
- Griffith Institute for Drug Discovery, School of Environment and Science, Griffith University, Brisbane, QLD, Australia
| | - Gunnar Cervin
- Department of Marine Sciences - Tjärnö, University of Gothenburg, Strömstad, Sweden
| | - Karren D Beattie
- Griffith Institute for Drug Discovery, School of Environment and Science, Griffith University, Brisbane, QLD, Australia
| | - Topul Rali
- School of Natural and Physical Sciences, The University of Papua New Guinea, Port Moresby, Papua New Guinea
| | - Marilyne Fauchon
- Laboratoire des Sciences de l'Environnement MARin (LEMAR), CNRS, IRD, IFREMER, University of Brest, Brest, France
| | - Claire Hellio
- Laboratoire des Sciences de l'Environnement MARin (LEMAR), CNRS, IRD, IFREMER, University of Brest, Brest, France
| | - Lovisa Bodin Åkerlund
- Department of Biological Function, RISE Research Institutes of Sweden, Borås, Sweden
| | - Henrik Pavia
- Department of Marine Sciences - Tjärnö, University of Gothenburg, Strömstad, Sweden
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13
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Ma J, Chen F, Chen CC, Zhang Z, Zhong Z, Jiang H, Pu J, Li Y, Pan K. Comparison between discarded facemask and common plastic waste on microbial colonization and physiochemical properties during aging in seawater. JOURNAL OF HAZARDOUS MATERIALS 2023; 455:131583. [PMID: 37201275 DOI: 10.1016/j.jhazmat.2023.131583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 04/12/2023] [Accepted: 05/04/2023] [Indexed: 05/20/2023]
Abstract
Facemasks are indispensable for preventing the spread of COVID-19. However, improper disposal of discarded facemasks has led to their contamination in the marine environment. To understand the environmental risk of this emerging plastic pollution, it's important to clarify the features that distinguish discarded facemasks from common plastic waste during aging. This study compared the microbial colonization, degradation-related enzymes, and physicochemical properties among surgical masks, polystyrene cups, polycarbonate bottles, and polyethylene terephthalate bottles in their aging processes in natural seawater. Compared to the other plastic wastes, surgical masks were colonized by the most diverse microorganisms, reaching 1521 unique prokaryotic OTUs after 21-day exposure in seawater. Moreover, the activity of eukaryotic enzymes associated with plastic degradation was 80-fold higher than that in seawater, indicating that the colonized eukaryotes would be the major microorganisms degrading the surgical masks. Meanwhile, the nano-sized defects (depth between 8 and 61 nm) would evolve into cracks of bigger sizes and result in the breakage of the microfibers and releasing microplastics into the ocean. Overall, our study demonstrated a distinctive plastisphere occurred in surgical masks from both microbial and physiochemical aspects. This work provides new insights for assessing the potential risk of plastic pollution caused by the COVID-19 pandemic.
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Affiliation(s)
- Jie Ma
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen 518060, Guangdong, China
| | - Fengyuan Chen
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen 518060, Guangdong, China
| | - Ciara Chun Chen
- College of Chemistry and Chemical Engineering, Shantou University, Shantou 515063, Guangdong, China
| | - Zhen Zhang
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen 518060, Guangdong, China; Department of Ocean Science, The Hong Kong University of Science and Technology, Hong Kong Special Administrative Region of China
| | - Zihan Zhong
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen 518060, Guangdong, China
| | - Hao Jiang
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, Hubei, China
| | - Junbao Pu
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, Hubei, China
| | - Yanping Li
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen 518060, Guangdong, China
| | - Ke Pan
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen 518060, Guangdong, China.
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14
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Wassick A, Hunsucker KZ, Swain G. Measuring the recruitment and growth of biofouling communities using clear recruitment panels. BIOFOULING 2023; 39:643-660. [PMID: 37537897 DOI: 10.1080/08927014.2023.2243236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 07/11/2023] [Accepted: 07/26/2023] [Indexed: 08/05/2023]
Abstract
Ecological monitoring has been recognized as a key tool for guiding biofouling management practices. A two-year study was designed to collect comprehensive data on the biofouling community progression at Port Canaveral, Florida, using clear recruitment panels and a scanner to directly observe organisms attached to the surface. This method allowed for minimal disruption to the natural community development and aided the collection of a suite of metrics to explore environmental relationships. Seasonal changes in community composition and biofouling pressure, especially at earlier stages, were related to abiotic conditions. Interannual variation within seasonal communities was also observed. The type of dominant organism present impacted the rate at which surfaces were covered (e.g. fastest cover with tunicates) and the overall biomass accumulation (e.g. highest rate with tubeworms). Results highlight that understanding the influence of the time of year and the dominant organism identity is ecologically vital for improving biofouling management.
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Affiliation(s)
- Ann Wassick
- Center for Corrosion and Biofouling Control, FL Institute of Technology, Melbourne, FL, USA
| | - Kelli Z Hunsucker
- Center for Corrosion and Biofouling Control, FL Institute of Technology, Melbourne, FL, USA
| | - Geoffrey Swain
- Center for Corrosion and Biofouling Control, FL Institute of Technology, Melbourne, FL, USA
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15
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Weber F, Esmaeili N. Marine biofouling and the role of biocidal coatings in balancing environmental impacts. BIOFOULING 2023; 39:661-681. [PMID: 37587856 DOI: 10.1080/08927014.2023.2246906] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 08/02/2023] [Accepted: 08/07/2023] [Indexed: 08/18/2023]
Abstract
Marine biofouling is a global problem affecting various industries, particularly the shipping industry due to long-distance voyages across various ecosystems. Therein fouled hulls cause increased fuel consumption, greenhouse gas emissions, and the spread of invasive aquatic species. To counteract these issues, biofouling management plans are employed using manual cleaning protocols and protective coatings. This review provides a comprehensive overview of adhesion strategies of marine organisms, and currently available mitigation methods. Further, recent developments and open challenges of antifouling (AF) and fouling release (FR) coatings are discussed with regards to the future regulatory environment. Finally, an overview of the environmental and economic impact of fouling is provided to point out why and when the use of biocidal solutions is beneficial in the overall perspective.
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Affiliation(s)
- Florian Weber
- Department of Materials and Nanotechnology, SINTEF, Oslo, Norway
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16
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Xu X, Tong Y, Deng Y, Zhao L. Impacts of marine heatwaves on byssus production in highly invasive fouling mussels. MARINE ENVIRONMENTAL RESEARCH 2023; 184:105871. [PMID: 36587491 DOI: 10.1016/j.marenvres.2022.105871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/26/2022] [Accepted: 12/29/2022] [Indexed: 06/17/2023]
Abstract
Marine heatwaves (MHWs) are projected to increase in their frequency, intensity, and duration, causing irreversible and catastrophic consequences for intertidal ecosystems around the world. The highly invasive fouling mussel, Arcuatula senhousia, can cause marked habitat alteration by constructing extremely intense byssal mats, devastating the biodiversity of many intertidal systems, yet very little is known about its fate under conditions of more frequent, hotter and longer MHWs. Here, we assessed impacts of two scenarios of MHWs (low-intensity with 4 °C rise of seawater temperature and high-intensity with 8 °C rise, respectively) on the byssal production of A. senhousia. Mussels exposed to low-intensity MHWs did not show any significant differences in the number, length and diameter of byssal threads, compared with those not thermally stressed. Under high-intensity scenario, the byssus production was significantly depressed, and byssal threads became fewer, shorter and finer, in line with significant decreases in cumulative length and volume. These findings provide a better understanding of responses of invasive fouling mussels such as A. senhousia to MHWs and make a leap forward in linking climate change and biological fouling in marine ecosystems.
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Affiliation(s)
- Xin Xu
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Yinhong Tong
- Fisheries College, Guangdong Ocean University, Zhanjiang, China.
| | - Yuewen Deng
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Liqiang Zhao
- Fisheries College, Guangdong Ocean University, Zhanjiang, China; Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Guangdong Ocean University, Zhanjiang, China; Guangdong Provincial Engineering and Technology Research Center of Far Sea Fisheries Management and Fishing of South China Sea, China.
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17
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Li Q, Wen C, Yang J, Zhou X, Zhu Y, Zheng J, Cheng G, Bai J, Xu T, Ji J, Jiang S, Zhang L, Zhang P. Zwitterionic Biomaterials. Chem Rev 2022; 122:17073-17154. [PMID: 36201481 DOI: 10.1021/acs.chemrev.2c00344] [Citation(s) in RCA: 122] [Impact Index Per Article: 61.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The term "zwitterionic polymers" refers to polymers that bear a pair of oppositely charged groups in their repeating units. When these oppositely charged groups are equally distributed at the molecular level, the molecules exhibit an overall neutral charge with a strong hydration effect via ionic solvation. The strong hydration effect constitutes the foundation of a series of exceptional properties of zwitterionic materials, including resistance to protein adsorption, lubrication at interfaces, promotion of protein stabilities, antifreezing in solutions, etc. As a result, zwitterionic materials have drawn great attention in biomedical and engineering applications in recent years. In this review, we give a comprehensive and panoramic overview of zwitterionic materials, covering the fundamentals of hydration and nonfouling behaviors, different types of zwitterionic surfaces and polymers, and their biomedical applications.
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Affiliation(s)
- Qingsi Li
- Department of Biochemical Engineering, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China
| | - Chiyu Wen
- Department of Biochemical Engineering, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China
| | - Jing Yang
- Department of Biochemical Engineering, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China
| | - Xianchi Zhou
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Yingnan Zhu
- Institute of Drug Discovery and Development, School of Pharmaceutical Sciences, Center for Drug Safety Evaluation and Research, Zhengzhou University, Zhengzhou 450001, China
| | - Jie Zheng
- Department of Chemical, Biomolecular, and Corrosion Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Gang Cheng
- Department of Chemical Engineering, The University of Illinois at Chicago, Chicago, Illinois 60607, United States
| | - Jie Bai
- College of Chemical Engineering, Inner Mongolia University of Technology, Hohhot, Inner Mongolia 010051, China
| | - Tong Xu
- College of Chemical Engineering, Inner Mongolia University of Technology, Hohhot, Inner Mongolia 010051, China
| | - Jian Ji
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Shaoyi Jiang
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Lei Zhang
- Department of Biochemical Engineering, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China
| | - Peng Zhang
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
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18
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Grant TM, Rennison D, Arabshahi HJ, Brimble MA, Cahill P, Svenson J. Effect of regio- and stereoisomerism on antifouling 2,5-diketopiperazines. Org Biomol Chem 2022; 20:9431-9446. [PMID: 36408605 DOI: 10.1039/d2ob01864k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Marine biofouling is a problem that plagues all maritime industries at vast economic and environmental cost. Previous and current methods to prevent biofouling have employed the use of heavy metals and other toxic or highly persistent chemicals, and these methods are now coming under immense regulatory pressure. Recent studies have illustrated the potential of nature-inspired tetrasubstituted 2,5-diketopiperazines (2,5-DKPs) as eco-friendly marine biocides for biofouling control. These highly active symmetrically substituted 2,5-DKPs can be generated by combining structural motifs from cationic innate defence peptides and natural marine antifoulants. A balance between a threshold hydrophobic contribution and sufficient cationic charge has been established as key for bioactivity, and our current study further increases understanding of the antifouling mechanism by investigating the effect of both regio- and stereochemistry. Novel synthetic routes for the generation of unsymmetrical 2,5-DKPs were developed and a library of nine compounds was prepared. The compounds were screened against a series of four model macrofouling organisms (Ciona savignyi, Mytilus galloprovincialis, Spirobranchus cariniferus, and Undaria pinnatifida). Several of the evaluated compounds displayed inhibitory activity at sub-micromolar concentrations. The structural contributions to antifouling bioactivity were studied using NMR spectroscopy and molecular modelling, revealing a strong dependence on a stable amphiphilic solution structure regardless of substitution pattern.
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Affiliation(s)
- Thomas M Grant
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland, New Zealand.
| | - David Rennison
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland, New Zealand.
| | - Homayon J Arabshahi
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland, New Zealand.
| | - Margaret A Brimble
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland, New Zealand.
| | - Patrick Cahill
- Cawthron Institute, 98 Halifax Street, Nelson, New Zealand.
| | - Johan Svenson
- Cawthron Institute, 98 Halifax Street, Nelson, New Zealand.
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19
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Saha R, Bhattacharya D, Mukhopadhyay M. Advances in modified antimicrobial peptides as marine antifouling material. Colloids Surf B Biointerfaces 2022; 220:112900. [DOI: 10.1016/j.colsurfb.2022.112900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 09/19/2022] [Accepted: 10/01/2022] [Indexed: 11/27/2022]
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20
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Assessment of the Antibiofilm Performance of Chitosan-Based Surfaces in Marine Environments. Int J Mol Sci 2022; 23:ijms232314647. [PMID: 36498973 PMCID: PMC9741481 DOI: 10.3390/ijms232314647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/19/2022] [Accepted: 11/22/2022] [Indexed: 11/25/2022] Open
Abstract
Marine biofouling is a natural process often associated with biofilm formation on submerged surfaces, creating a massive economic and ecological burden. Although several antifouling paints have been used to prevent biofouling, growing ecological concerns emphasize the need to develop new and environmentally friendly antifouling approaches such as bio-based coatings. Chitosan (CS) is a natural polymer that has been widely used due to its outstanding biological properties, including non-toxicity and antimicrobial activity. This work aims to produce and characterize poly (lactic acid) (PLA)-CS surfaces with CS of different molecular weight (Mw) at different concentrations for application in marine paints. Loligo opalescens pens, a waste from the fishery industry, were used as a CS source. The antimicrobial activity of the CS and CS-functionalized surfaces was assessed against Cobetia marina, a model proteobacterium for marine biofouling. Results demonstrate that CS targets the bacterial cell membrane, and PLA-CS surfaces were able to reduce the number of culturable cells up to 68% compared to control, with this activity dependent on CS Mw. The antifouling performance was corroborated by Optical Coherence Tomography since PLA-CS surfaces reduced the biofilm thickness by up to 36%, as well as the percentage and size of biofilm empty spaces. Overall, CS coatings showed to be a promising approach to reducing biofouling in marine environments mimicked in this work, contributing to the valorization of fishing waste and encouraging further research on this topic.
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21
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Developing an Effective and Durable Film for Marine Fouling Prevention from PDMS/SiO2 and PDMS/PU with SiO2 Composites. Polymers (Basel) 2022; 14:polym14204252. [PMID: 36297830 PMCID: PMC9611852 DOI: 10.3390/polym14204252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 10/01/2022] [Accepted: 10/01/2022] [Indexed: 11/17/2022] Open
Abstract
Polymer film coating with a highly hydrophobic surface property is a practical approach to prevent fouling of any structures in the marine environment without affecting marine microorganisms. The preparation of a polymer coating, from a simple and easy method of solution blending of hydrophobic polydimethylsiloxane elastomer and hydrophilic polyurethane with SiO2, was carried out in this study, with the aim of improving characteristics, and the coating demonstrated economic feasibility for antifouling application. Incorporation of SiO2 particles into PDMS and PDMS/PU polymer film improved mechanical properties of the film and the support fabrication of micropatterns by means of a soft lithography process. Observations from field emission scanning electron microscope (FESEM) of the PDMS/SiO2 composite film revealed a homogeneous morphology and even dispersion of the SiO2 disperse phase between 1–5 wt.%. Moreover, the PDMS film with 3 wt.% loading of SiO2 considerably increased WCA to 115.7° ± 2.5° and improved mechanical properties by increasing Young’s modulus by 128%, compared with neat PDMS film. Additionally, bonding strength between barnacles and the PDMS film with 3 wt.% of SiO2 loading was 0.16 MPa, which was much lower than the bonding strength between barnacles and the reference carbon steel of 1.16 MPa. When compared to the previous study using PDMS/PU blend (95:5), the count of barnacles of PDMS with 3 wt.% SiO2 loading was lower by 77% in the two-week field tests and up to 97% in the eight-week field tests. Subsequently, when PDMS with 3 wt.% SiO2 was further blended with PU, and the surface modified by the soft lithography process, it was found that PDMS/PU (95:5) with 3 wt.% SiO2 composite film with micropatterns increased WCA to 122.1° ± 2.9° and OCA 90.8 ± 3.6°, suggesting that the PDMS/PU (95:5) with 3 wt.% SiO2 composite film with surface modified by the soft lithography process could be employed for antifouling application.
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22
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Berdimurodov E, Eliboyev I, Berdimuradov K, Kholikov A, Akbarov K, Dagdag O, Rbaa M, El Ibrahimi B, Verma DK, Haldhar R, Arrousse N. Green β-cyclodextrin-based corrosion inhibitors: Recent developments, innovations and future opportunities. Carbohydr Polym 2022; 292:119719. [PMID: 35725191 DOI: 10.1016/j.carbpol.2022.119719] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/22/2022] [Accepted: 06/06/2022] [Indexed: 11/26/2022]
Abstract
β-Cyclodextrin-based compounds are used to develop and innovate materials that protect against corrosion due to their sustainability, low cost, environmental friendliness, excellent water solubility and high inhibition efficiency. However, corrosion potentials of β-CD-based compounds were not reviewed with the modern trends. The essence of the problem is that a deep understanding of the development and innovation of β-CD-based compounds as corrosion inhibitors is very important in creating next-generation materials for corrosion protection. In this review, the fundamental behaviour, importance, developments and innovations of β-CD modified with natural and synthetic polymers, β-CD grafted with the organic compounds, β-CD-based supramolecular (host-guest) systems with organic molecules, polymer β-CD-based supramolecular (host-guest) systems, β-CD-based graphene oxide materials, β-CD-based nanoparticle materials and β-CD-based nanocarriers as corrosion inhibitors for various metals were reviewed and discussed with recent research works as examples. In addition, the corrosion inhibition of β-CD-based compounds for biocorrosion, microbial corrosion and biofouling was reviewed. It was found that (i) these compounds are sustainable, inexpensive, environmentally friendly, and highly water-soluble and have high inhibition efficiency; (ii) the molecular structure of β-CD makes it an excellent molecular container for corrosion inhibitors compounds; (iii) the β-CD is excellent core to develop the next generation of corrosion inhibitors. It is recommended that (i) β-CD compounds would be synthesized by green methods, such as using biological sustainable catalysts and green solvents, green methods include irradiation or heating, energy-efficient microwave irradiation, mechanochemical mixing, solid-state reactions, hydrothermal reactions and multicomponent reactions; (ii) this review will be helpful in creating, enhancing and innovating the next green and efficient materials for future corrosion protection in high-impact industries.
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Affiliation(s)
- Elyor Berdimurodov
- Faculty of Chemistry, National University of Uzbekistan, Tashkent 100034, Uzbekistan.
| | - Ilyos Eliboyev
- Faculty of Chemistry, National University of Uzbekistan, Tashkent 100034, Uzbekistan
| | - Khasan Berdimuradov
- Faculty of Industrial Viticulture and Food Production Technology, Shahrisabz branch of Tashkent Institute of Chemical Technology, Shahrisabz 181306, Uzbekistan
| | - Abduvali Kholikov
- Faculty of Chemistry, National University of Uzbekistan, Tashkent 100034, Uzbekistan
| | - Khamdam Akbarov
- Faculty of Chemistry, National University of Uzbekistan, Tashkent 100034, Uzbekistan
| | - Omar Dagdag
- Institute of Nanotechnology and Water Sustainability, College of Science, Engineering and Technology, University of South Africa, Johannesburg, South Africa
| | - Mohamed Rbaa
- Laboratory of Organic Chemistry, Catalysis and Environment, Faculty of Sciences, Ibn Tofail University, PO Box 133, 14000 Kenitra, Morocco
| | - Brahim El Ibrahimi
- Department of Applied Chemistry, Faculty of Applied Sciences, Ibn Zohr University, 86153, Morocco
| | - Dakeshwar Kumar Verma
- Department of Chemistry, Government Digvijay Autonomous Postgraduate College, Rajnandgaon, Chhattisgarh 491441, India
| | - Rajesh Haldhar
- School of Chemical Engineering, Yeungnam University, Gyeongsan 712749, South Korea
| | - Nadia Arrousse
- Laboratory of Engineering, Electrochemistry, Modeling and Environment (LIEME), Faculty of Sciences, University Sidi Mohamed Ben Abdellah, Fez, Morocco
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23
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Martínez-Laiz G, MacLeod CD, Hesketh AV, Konecny CA, Ros M, Guerra-García JM, Harley CDG. The journey of hull-fouling mobile invaders: basibionts and boldness mediate dislodgement risk during transit. BIOFOULING 2022; 38:837-851. [PMID: 36317602 DOI: 10.1080/08927014.2022.2138754] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 10/06/2022] [Accepted: 10/14/2022] [Indexed: 06/16/2023]
Abstract
Vessel hull-fouling is responsible for most bioinvasion events in the marine environment, yet it lacks regulation in most countries. Although experts advocate a preventative approach, research efforts on pre-arrival processes are limited. The performance of mobile epifauna during vessel transport was evaluated via laboratory simulations, using the well-known invasive Japanese skeleton shrimp (Caprella mutica), and its native congener C. laeviuscula as case study. The invader did not possess any advantage in terms of inherent resistance to drag. Instead, its performance was conditioned by the complexity of secondary substrate. Dislodgement risk was significantly reduced when sessile fouling basibionts were added, which provided refugia and boosted the probability of C. mutica remaining attached from 7 to 65% in flow exposure trials. Interestingly, the invader exhibited significantly higher exploratory tendency and motility than its native congener at zero-flow conditions. Implications in terms of en-route survivorship, invasion success and macrofouling management are discussed.
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Affiliation(s)
- Gemma Martínez-Laiz
- Laboratory of Marine Biology, Department of Zoology, University of Seville, Seville, Spain
| | - Colin D MacLeod
- Department of Zoology, University of British Columbia, Vancouver, BC, Canada
| | - Amelia V Hesketh
- Department of Zoology, University of British Columbia, Vancouver, BC, Canada
| | - Cassandra A Konecny
- Department of Zoology, University of British Columbia, Vancouver, BC, Canada
- Institute for the Oceans and Fisheries, University of British Columbia, Vancouver, BC, Canada
| | - Macarena Ros
- Laboratory of Marine Biology, Department of Zoology, University of Seville, Seville, Spain
- Department of Biology, CASEM, University of Cadiz, Puerto Real, Spain
| | - José M Guerra-García
- Laboratory of Marine Biology, Department of Zoology, University of Seville, Seville, Spain
| | - Christopher D G Harley
- Department of Zoology, University of British Columbia, Vancouver, BC, Canada
- Institute for the Oceans and Fisheries, University of British Columbia, Vancouver, BC, Canada
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24
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Majer T, Bhattarai K, Straetener J, Pohlmann J, Cahill P, Zimmermann MO, Hübner MP, Kaiser M, Svenson J, Schindler M, Brötz-Oesterhelt H, Boeckler FM, Gross H. Discovery of Ircinianin Lactones B and C-Two New Cyclic Sesterterpenes from the Marine Sponge Ircinia wistarii. Mar Drugs 2022; 20:532. [PMID: 36005535 PMCID: PMC9410537 DOI: 10.3390/md20080532] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 08/13/2022] [Accepted: 08/17/2022] [Indexed: 11/16/2022] Open
Abstract
Two new ircinianin-type sesterterpenoids, ircinianin lactone B and ircinianin lactone C (7 and 8), together with five known entities from the ircinianin compound family (1, 3-6) were isolated from the marine sponge Ircinia wistarii. Ircinianin lactones B and C (7 and 8) represent new ircinianin terpenoids with a modified oxidation pattern. Despite their labile nature, the structures could be established using a combination of spectroscopic data, including HRESIMS and 1D/2D NMR techniques, as well as computational chemistry and quantum-mechanical calculations. In a broad screening approach for biological activity, the class-defining compound ircinianin (1) showed moderate antiprotozoal activity against Plasmodium falciparum (IC50 25.4 μM) and Leishmania donovani (IC50 16.6 μM).
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Affiliation(s)
- Thomas Majer
- Department of Pharmaceutical Biology, Pharmaceutical Institute, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
| | - Keshab Bhattarai
- Department of Pharmaceutical Biology, Pharmaceutical Institute, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
| | - Jan Straetener
- Department of Microbial Bioactive Compounds, Interfaculty Institute of Microbiology and Infection Medicine (IMIT), University of Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany
| | - Justus Pohlmann
- Institute for Medical Virology and Epidemiology, Section Molecular Virology, University Hospital Tübingen, 72076 Tübingen, Germany
| | - Patrick Cahill
- Cawthron Institute, 98 Halifax Street East, Nelson 7010, New Zealand
| | - Markus O. Zimmermann
- Lab for Molecular Design and Pharmaceutical Biophysics, Department of Pharmacy and Biochemistry, Institute of Pharmaceutical Sciences, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
| | - Marc P. Hübner
- Institute for Medical Microbiology, Immunology and Parasitology, University Hospital Bonn, 53127 Bonn, Germany
- German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Bonn, Germany
| | - Marcel Kaiser
- Swiss Tropical and Public Health Institute, Kreuzstrasse 2, 4123 Allschwil, Switzerland
- Faculty of Science, University of Basel, Petersplatz 1, 4002 Basel, Switzerland
| | - Johan Svenson
- Cawthron Institute, 98 Halifax Street East, Nelson 7010, New Zealand
| | - Michael Schindler
- Institute for Medical Virology and Epidemiology, Section Molecular Virology, University Hospital Tübingen, 72076 Tübingen, Germany
| | - Heike Brötz-Oesterhelt
- Department of Microbial Bioactive Compounds, Interfaculty Institute of Microbiology and Infection Medicine (IMIT), University of Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany
- Cluster of Excellence ‘Controlling Microbes to Fight Infections’, University of Tübingen, 72076 Tübingen, Germany
- German Center for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany
| | - Frank M. Boeckler
- Lab for Molecular Design and Pharmaceutical Biophysics, Department of Pharmacy and Biochemistry, Institute of Pharmaceutical Sciences, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
- Interfaculty Institute for Biomedical Informatics (IBMI), University of Tübingen, Sand 14, 72076 Tübingen, Germany
| | - Harald Gross
- Department of Pharmaceutical Biology, Pharmaceutical Institute, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
- Cluster of Excellence ‘Controlling Microbes to Fight Infections’, University of Tübingen, 72076 Tübingen, Germany
- German Center for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany
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25
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Nall CR, Schläppy ML, Cottier-Cook EJ, Guerin AJ. Influence of coating type, colour, and deployment timing on biofouling by native and non-native species in a marine renewable energy context. BIOFOULING 2022; 38:729-745. [PMID: 36100232 DOI: 10.1080/08927014.2022.2121209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 08/16/2022] [Accepted: 08/26/2022] [Indexed: 06/15/2023]
Abstract
Biofouling on marine renewable energy devices presents engineering challenges for this developing sector, and has implications for the spread of marine non-native species (NNS) in coastal waters. This is particularly true at sites with abundant energy resource, little existing infrastructure, and few established NNS. Device coatings, such as antifouling paints, could reduce the risk of NNS spread. Settlement on coatings of various types and colours, representing those likely to be used on renewable energy devices, was assessed in the Orkney Islands, northern Scotland. Assemblage composition, but not overall biofouling cover, varied initially among different coloured surfaces, although differences decreased over time. Different coating types (an anticorrosive paint, a biocidal paint and a fouling-release coating) differed in biofouling abundance and composition for the full duration of the experiment. NNS were mostly, but not completely, absent from antifouling surfaces. These results can help informing antifouling strategies for the marine renewable energy industry.
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Affiliation(s)
- Christopher R Nall
- Environmental Research Institute, University of Highlands and Islands, Thurso, UK
| | - Marie-Lise Schläppy
- Environmental Research Institute, University of Highlands and Islands, Thurso, UK
| | - Elizabeth J Cottier-Cook
- Scottish Association for Marine Science (SAMS), Scottish Marine Institute, Argyll, United Kingdom
| | - Andrew J Guerin
- Environmental Research Institute, University of Highlands and Islands, Thurso, UK
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26
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Rischer M, Guo H, Beemelmanns C. Signalling molecules inducing metamorphosis in marine organisms. Nat Prod Rep 2022; 39:1833-1855. [PMID: 35822257 DOI: 10.1039/d1np00073j] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Covering: findings from early 1980s until early 2022Microbial-derived cues of marine biofilms induce settlement and metamorphosis of marine organisms, a process responsible for the emergence of diverse flora and fauna in marine habitats. Although this phenomenon is known for more than 80 years, the research field has only recently gained much momentum. Here, we summarize the currently existing biochemical and microbial knowledge about microbial signalling molecules, con-specific signals, and synthetic compounds that induce or prevent recruitment, settlement, and metamorphosis in invertebrate larvae. We discuss the possible modes of action and conclude with perspectives for future research directions in the field of marine chemical ecology.
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Affiliation(s)
- Maja Rischer
- Chemical Biology of Microbe-Host Interactions, Leibniz Institute for Natural Product Research and Infection Biology - Hans Knöll Institute (HKI), Beutenbergstraße 11a, Jena, 07745, Germany.
| | - Huijuan Guo
- Chemical Biology of Microbe-Host Interactions, Leibniz Institute for Natural Product Research and Infection Biology - Hans Knöll Institute (HKI), Beutenbergstraße 11a, Jena, 07745, Germany.
| | - Christine Beemelmanns
- Chemical Biology of Microbe-Host Interactions, Leibniz Institute for Natural Product Research and Infection Biology - Hans Knöll Institute (HKI), Beutenbergstraße 11a, Jena, 07745, Germany. .,Biochemistry of Microbial Metabolism, Institute of Biochemistry, Leipzig University, Johannisallee 21-23, Leipzig 04103, Germany
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27
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Grant TM, Rennison D, Cervin G, Pavia H, Hellio C, Foulon V, Brimble MA, Cahill P, Svenson J. Towards eco-friendly marine antifouling biocides - Nature inspired tetrasubstituted 2,5-diketopiperazines. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 812:152487. [PMID: 34953845 DOI: 10.1016/j.scitotenv.2021.152487] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/13/2021] [Accepted: 12/13/2021] [Indexed: 06/14/2023]
Abstract
Marine biofouling plagues all maritime industries at vast economic and environmental cost. Previous and most current methods to control biofouling have employed highly persistent toxins and heavy metals, including tin, copper, and zinc. These toxic methods are resulting in unacceptable environmental harm and are coming under immense regulatory pressure. Eco-friendly alternatives are urgently required to effectively mitigate the negative consequence of biofouling without causing collateral harm. Amphiphilic micropeptides have recently been shown to exhibit excellent broad-spectrum antifouling activity, with a non-toxic mode of action and innate biodegradability. The present work focused on incorporating the pharmacophore derived from amphiphilic micropeptides into a 2,5-diketopiperazine (DKP) scaffold. This privileged structure is present in a vast number of natural products, including marine natural product antifoulants, and provides advantages of synthetic accessibility and adaptability. A novel route to symmetrical tetrasubstituted DKPs was developed and a library of amphiphilic 2,5-DKPs were subsequently synthesised. These biodegradable compounds were demonstrated to be potent marine antifoulants displaying broad-spectrum activity in the low micromolar range against a range of common marine fouling organisms. The outcome of planned coating and field trials will dictate the future development of the lead compounds.
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Affiliation(s)
- Thomas M Grant
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland, New Zealand
| | - David Rennison
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland, New Zealand
| | - Gunnar Cervin
- Department of Marine Sciences, Tjärnö Marine Laboratory, University of Gothenburg, SE-452 96 Strömstad, Sweden
| | - Henrik Pavia
- Department of Marine Sciences, Tjärnö Marine Laboratory, University of Gothenburg, SE-452 96 Strömstad, Sweden
| | - Claire Hellio
- Univ. Brest, Laboratoire des Sciences de l'Environnement MARin (LEMAR), CNRS, IRD, IFREMER, Brest 29285, France
| | - Valentin Foulon
- Univ. Brest, Laboratoire des Sciences de l'Environnement MARin (LEMAR), CNRS, IRD, IFREMER, Brest 29285, France
| | - Margaret A Brimble
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland, New Zealand
| | - Patrick Cahill
- Cawthron Institute, 98 Halifax Street, Nelson, New Zealand
| | - Johan Svenson
- Cawthron Institute, 98 Halifax Street, Nelson, New Zealand.
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28
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Establishing an Agenda for Biofouling Research for the Development of the Marine Renewable Energy Industry in Indonesia. JOURNAL OF MARINE SCIENCE AND ENGINEERING 2022. [DOI: 10.3390/jmse10030384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Marine renewable energy holds strategic potential in Indonesia, not only to meet the target of renewable energy share in the national energy mix but also to provide equal access to clean energy throughout the archipelago. Marine energy in Indonesia is still in the early phase of development, which mainly focusses on resources assessment and power generation through technology prototype testing. Based on a review of available literature, it is found that specific research on the effects of biofouling on material durability of marine energy infrastructure in Indonesia has yet to be addressed. In this study, a matrix that identifies and predicts key fouling organisms and their possible risks on marine renewable energy infrastructure in tropical waters of Indonesia is developed by analysing previous findings in temperate and subtropical waters. Based on the matrix developed, calcareous polychaetes (Serpulidae), barnacles (Amphibalanus spp.), and bivalves (Perna viridis) are among possible key fouling organisms that might pose risks to marine energy infrastructure in Indonesia, such as by adding weight and drag and causing corrosion. Further studies and detailed and statistically robust analysis of the biofouling and its impacts are needed to support the development of the technological performance of marine renewable energy in Indonesia.
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29
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Pistone A, Scolaro C, Celesti C, Visco A. Study of Protective Layers Based on Crosslinked Glutaraldehyde/3-aminopropyltriethoxysilane. Polymers (Basel) 2022; 14:801. [PMID: 35215713 PMCID: PMC8963086 DOI: 10.3390/polym14040801] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 02/16/2022] [Indexed: 02/01/2023] Open
Abstract
In this paper, we report the synthesis and characterization of novel coatings based on (3-aminopropyl)-triethoxysilane (AP) mixed with different amounts of glutaraldehyde (GA). The synthesized coatings have been layered on a glass substrate and characterized by optical microscopy and roughness measurements, thermogravimetric analyses and differential scanning calorimetry, contact angle analysis, rheological measurement, and an adhesion test. It was observed that the higher the GA content (up to AP:GA ratio of 0.3), the sooner the crosslinking reaction starts, leading to a coating with increased hydrophobic and adhesion features without compromising the final AP cross-linked network. Hence, the obtained results show the effectiveness of AP modification with GA from the perspective of an application as protective coatings.
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Affiliation(s)
- Alessandro Pistone
- Department of Engineering, University of Messina, Contrada Di Dio, I-98166 Messina, Italy; (C.S.); (C.C.)
| | - Cristina Scolaro
- Department of Engineering, University of Messina, Contrada Di Dio, I-98166 Messina, Italy; (C.S.); (C.C.)
| | - Consuelo Celesti
- Department of Engineering, University of Messina, Contrada Di Dio, I-98166 Messina, Italy; (C.S.); (C.C.)
| | - Annamaria Visco
- Department of Engineering, University of Messina, Contrada Di Dio, I-98166 Messina, Italy; (C.S.); (C.C.)
- Institute for Polymers, Composites and Biomaterials, CNR-IPCB, Via P. Gaifami 18, 9-95126 Catania, Italy
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30
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Vinagre PA, Lindén JB, Mardaras E, Pinori E, Svenson J. Probing the correlation between corrosion resistance and biofouling of thermally sprayed metallic substrata in the field. BIOFOULING 2022; 38:147-161. [PMID: 35184621 DOI: 10.1080/08927014.2022.2033736] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 01/19/2022] [Accepted: 01/19/2022] [Indexed: 06/14/2023]
Abstract
The correlation between inherent corrosion resistance and biofouling was investigated for five different metallic coatings. Steel panels thermally spray-coated with either aluminium, Monel, bronze or different aluminium alloys were tested in controlled salt mist conditions and electrochemical corrosion tests and subsequently employed at sea. The biofouling of the panels was monitored at different depths (5, 10 and 15 m) at periods ranging from 5 to 12 months. The main macrofouling organisms were quantified and analysed using permutational multivariate analysis. The results indicate a significant difference in fouling pressure between depths and the geographic sites used. No statistically significant link between high corrosion resistance and lower biofouling pressure was observed, indicating that the main marine macrofoulers settled equally well on corrosion resistant and corrosion prone metallic surfaces. This work sheds light on biofouling of thermally sprayed metallic substrata and it characterizes and compares biofouling assemblages from different biogeographical regions in Europe.
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Affiliation(s)
- Pedro A Vinagre
- Department of Marine Environment and Licensing, WavEC Offshore Renewables, Lisbon, Portugal
| | - Johan B Lindén
- Department of Corrosion, RISE Research Institutes of Sweden, Borås, Sweden
| | - Enara Mardaras
- AZTERLAN, Basque Research and Technology Alliance (BRTA), Durango, Spain
| | - Emiliano Pinori
- Department of Corrosion, RISE Research Institutes of Sweden, Borås, Sweden
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31
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Labriere C, Cervin G, Pavia H, Hansen JH, Svenson J. Structure-Activity Relationship Probing of the Natural Marine Antifoulant Barettin. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2021; 23:904-916. [PMID: 34727298 DOI: 10.1007/s10126-021-10074-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Accepted: 09/17/2021] [Indexed: 06/13/2023]
Abstract
The sponge derived 2,5-diketopiperazine metabolite barettin is a potent antifouling compound effective against the settlement and metamorphosis of barnacles. Simplified derivatives of barettin have previously been shown to display similar inhibitory properties. The synthetic derivative benzo[g]dipodazine has been reported to display significantly improved antifouling properties in comparison with the native barettin with inhibitory activities as low a 0.034 µM reported against barnacle cyprid settlement. In the current study we report the antifouling activity of 29 synthetic analogs designed and inspired by the potent antifouling effect seen for benzo[g]dipodazine. The library contains mainly not only dipodazine derivatives but also disubstituted diketopiperazines and compounds incorporating alternative heterocyclic cores such as hydantoin, creatinine, and rhodanine. Several of the prepared compounds inhibit the settlement of Amphibalanus improvisus cyprids at low micromolar concentrations, in parity with the natural barettin. While several highly active compounds were prepared by incorporating the benzo[g]indole as hydrophobic substituent, the remarkable antifouling effect reported for benzo[g]dipodazine was not observed when evaluated in our study.
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Affiliation(s)
- Christophe Labriere
- Department of Chemistry, Chemical Synthesis and Analysis Group, UiT The Arctic University of Norway, N-9037, Tromsø, Norway
| | - Gunnar Cervin
- Department of Marine Sciences - Tjärnö, University of Gothenburg, 452 96, Strömstad, Sweden
| | - Henrik Pavia
- Department of Marine Sciences - Tjärnö, University of Gothenburg, 452 96, Strömstad, Sweden
| | - Jørn H Hansen
- Department of Chemistry, Chemical Synthesis and Analysis Group, UiT The Arctic University of Norway, N-9037, Tromsø, Norway
| | - Johan Svenson
- Department of Chemistry, Chemical Synthesis and Analysis Group, UiT The Arctic University of Norway, N-9037, Tromsø, Norway.
- Cawthron Institute, 98 Halifax Street East, Nelson, 7010, New Zealand.
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32
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Kumar A, Al-Jumaili A, Bazaka O, Ivanova EP, Levchenko I, Bazaka K, Jacob MV. Functional nanomaterials, synergisms, and biomimicry for environmentally benign marine antifouling technology. MATERIALS HORIZONS 2021; 8:3201-3238. [PMID: 34726218 DOI: 10.1039/d1mh01103k] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Marine biofouling remains one of the key challenges for maritime industries, both for seafaring and stationary structures. Currently used biocide-based approaches suffer from significant drawbacks, coming at a significant cost to the environment into which the biocides are released, whereas novel environmentally friendly approaches are often difficult to translate from lab bench to commercial scale. In this article, current biocide-based strategies and their adverse environmental effects are briefly outlined, showing significant gaps that could be addressed through advanced materials engineering. Current research towards the use of natural antifouling products and strategies based on physio-chemical properties is then reviewed, focusing on the recent progress and promising novel developments in the field of environmentally benign marine antifouling technologies based on advanced nanocomposites, synergistic effects and biomimetic approaches are discussed and their benefits and potential drawbacks are compared to existing techniques.
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Affiliation(s)
- Avishek Kumar
- Electronics Materials Lab, College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia.
| | - Ahmed Al-Jumaili
- Electronics Materials Lab, College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia.
- Medical Physics Department, College of Medical Sciences Techniques, The University of Mashreq, Baghdad, Iraq
| | - Olha Bazaka
- School of Science, RMIT University, PO Box 2476, Melbourne, VIC 3001, Australia
| | - Elena P Ivanova
- School of Science, RMIT University, PO Box 2476, Melbourne, VIC 3001, Australia
| | - Igor Levchenko
- Plasma Sources and Application Centre, NIE, Nanyang Technological University, 637616, Singapore
| | - Kateryna Bazaka
- Electronics Materials Lab, College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia.
- Faculty of Engineering, Queensland University of Technology, Brisbane, QLD 4000, Australia
- School of Engineering, The Australian National University, Canberra, ACT 2601, Australia
| | - Mohan V Jacob
- Electronics Materials Lab, College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia.
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33
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Fractal Dimension as an Effective Feature for Characterizing Hard Marine Growth Roughness from Underwater Image Processing in Controlled and Uncontrolled Image Environments. JOURNAL OF MARINE SCIENCE AND ENGINEERING 2021. [DOI: 10.3390/jmse9121344] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Hard marine growth is an important process that affects the design and maintenance of floating offshore wind turbines. A key parameter of hard biofouling is roughness since it considerably changes the level of drag forces. Assessment of roughness from on-site inspection is required to improve updating of hydrodynamic forces. Image processing is rapidly developing as a cost effective and easy to implement tool for observing the evolution of biofouling and related hydrodynamic effects over time. Despite such popularity; there is a paucity in literature to address robust features and methods of image processing. There also remains a significant difference between synthetic images of hard biofouling and their idealized laboratory approximations in scaled wave basin testing against those observed in real sites. Consequently; there is a need for such a feature and imaging protocol to be linked to both applications to cater to the lifetime demands of performance of these structures against the hydrodynamic effects of marine growth. This paper proposes the fractal dimension as a robust feature and demonstrates it in the context of a stereoscopic imaging protocol; in terms of lighting and distance to the subject. This is tested for synthetic images; laboratory tests; and real site conditions. Performance robustness is characterized through receiver operating characteristics; while the comparison provides a basis with which a common measure and protocol can be used consistently for a wide range of conditions. The work can be used for design stage as well as for lifetime monitoring and decisions for marine structures, especially in the context of offshore wind turbines.
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34
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Resende DISP, Almeida JR, Pereira S, Campos A, Lemos A, Plowman JE, Thomas A, Clerens S, Vasconcelos V, Pinto M, Correia-da-Silva M, Sousa E. From Natural Xanthones to Synthetic C-1 Aminated 3,4-Dioxygenated Xanthones as Optimized Antifouling Agents. Mar Drugs 2021; 19:638. [PMID: 34822509 PMCID: PMC8618441 DOI: 10.3390/md19110638] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/09/2021] [Accepted: 11/11/2021] [Indexed: 01/20/2023] Open
Abstract
Biofouling, which occurs when certain marine species attach and accumulate in artificial submerged structures, represents a serious economic and environmental issue worldwide. The discovery of new non-toxic and eco-friendly antifouling systems to control or prevent biofouling is, therefore, a practical and urgent need. In this work, the antifouling activity of a series of 24 xanthones, with chemical similarities to natural products, was exploited. Nine (1, 2, 4, 6, 8, 16, 19, 21, and 23) of the tested xanthones presented highly significant anti-settlement responses at 50 μM against the settlement of mussel Mytilus galloprovincialis larvae and low toxicity to this macrofouling species. Xanthones 21 and 23 emerged as the most effective larval settlement inhibitors (EC50 = 7.28 and 3.57 µM, respectively). Additionally, xanthone 23 exhibited a therapeutic ratio (LC50/EC50) > 15, as required by the US Navy program attesting its suitability as natural antifouling agents. From the nine tested xanthones, none of the compounds were found to significantly inhibit the growth of the marine biofilm-forming bacterial strains tested. Xanthones 4, 6, 8, 16, 19, 21, and 23 were found to be non-toxic to the marine non-target species Artemia salina (<10% mortality at 50 μM). Insights on the antifouling mode of action of the hit xanthones 21 and 23 suggest that these two compounds affected similar molecular targets and cellular processes in mussel larvae, including that related to mussel adhesion capacity. This work exposes for the first time the relevance of C-1 aminated xanthones with a 3,4-dioxygenated pattern of substitution as new non-toxic products to prevent marine biofouling.
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Affiliation(s)
- Diana I. S. P. Resende
- CIIMAR—Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General, Norton de Matos S/N, 4450-208 Matosinhos, Portugal; (D.I.S.P.R.); (J.R.A.); (S.P.); (A.C.); (V.V.); (M.P.); (E.S.)
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal;
| | - Joana R. Almeida
- CIIMAR—Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General, Norton de Matos S/N, 4450-208 Matosinhos, Portugal; (D.I.S.P.R.); (J.R.A.); (S.P.); (A.C.); (V.V.); (M.P.); (E.S.)
| | - Sandra Pereira
- CIIMAR—Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General, Norton de Matos S/N, 4450-208 Matosinhos, Portugal; (D.I.S.P.R.); (J.R.A.); (S.P.); (A.C.); (V.V.); (M.P.); (E.S.)
- Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4069-007 Porto, Portugal
| | - Alexandre Campos
- CIIMAR—Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General, Norton de Matos S/N, 4450-208 Matosinhos, Portugal; (D.I.S.P.R.); (J.R.A.); (S.P.); (A.C.); (V.V.); (M.P.); (E.S.)
| | - Agostinho Lemos
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal;
| | - Jeffrey E. Plowman
- AgResearch Ltd., 1365 Springs Rd, Lincoln 7674, New Zealand; (J.E.P.); (A.T.); (S.C.)
| | - Ancy Thomas
- AgResearch Ltd., 1365 Springs Rd, Lincoln 7674, New Zealand; (J.E.P.); (A.T.); (S.C.)
| | - Stefan Clerens
- AgResearch Ltd., 1365 Springs Rd, Lincoln 7674, New Zealand; (J.E.P.); (A.T.); (S.C.)
- Biomolecular Interaction Centre, University of Canterbury, Christchurch 8041, New Zealand
- Riddet Institute, Massey University, Palmerston North 4474, New Zealand
| | - Vitor Vasconcelos
- CIIMAR—Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General, Norton de Matos S/N, 4450-208 Matosinhos, Portugal; (D.I.S.P.R.); (J.R.A.); (S.P.); (A.C.); (V.V.); (M.P.); (E.S.)
- Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4069-007 Porto, Portugal
| | - Madalena Pinto
- CIIMAR—Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General, Norton de Matos S/N, 4450-208 Matosinhos, Portugal; (D.I.S.P.R.); (J.R.A.); (S.P.); (A.C.); (V.V.); (M.P.); (E.S.)
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal;
| | - Marta Correia-da-Silva
- CIIMAR—Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General, Norton de Matos S/N, 4450-208 Matosinhos, Portugal; (D.I.S.P.R.); (J.R.A.); (S.P.); (A.C.); (V.V.); (M.P.); (E.S.)
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal;
| | - Emília Sousa
- CIIMAR—Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General, Norton de Matos S/N, 4450-208 Matosinhos, Portugal; (D.I.S.P.R.); (J.R.A.); (S.P.); (A.C.); (V.V.); (M.P.); (E.S.)
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal;
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Chungprempree J, Charoenpongpool S, Preechawong J, Atthi N, Nithitanakul M. Simple Preparation of Polydimethylsiloxane and Polyurethane Blend Film for Marine Antibiofouling Application. Polymers (Basel) 2021; 13:2242. [PMID: 34301003 PMCID: PMC8309381 DOI: 10.3390/polym13142242] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 06/29/2021] [Accepted: 06/29/2021] [Indexed: 11/17/2022] Open
Abstract
A key way to prevent undesirable fouling of any structure in the marine environment, without harming any microorganisms, is to use a polymer film with high hydrophobicity. The polymer film, which was simply prepared from a blend of hydrophobic polydimethylsiloxane elastomer and hydrophilic polyurethane, showed improved properties and economic viability for antifouling film for the marine industry. The field emission scanning electron microscope and energy dispersive X-ray spectrometer (FESEM and EDX) results from the polymer blend suggested a homogenous morphology and good distribution of the polyurethane disperse phase. The PDMS:PU blend (95:5) film gave a water contact angle of 103.4° ± 3.8° and the PDMS film gave a water contact angle of 109.5° ± 4.2°. Moreover, the PDMS:PU blend (95:5) film could also be modified with surface patterning by using soft lithography process to further increase the hydrophobicity. It was found that PDMS:PU blend (95:5) film with micro patterning from soft lithography process increased the contact angle to 128.8° ± 1.6°. The results from a field test in the Gulf of Thailand illustrated that the bonding strength between the barnacles and the PDMS:PU blend (95:5) film (0.07 MPa) were lower than the bonding strength between the barnacles and the carbon steel (1.16 MPa). The barnacles on the PDMS:PU blend (95:5) film were more easily removed from the surface. This indicated that the PDMS:PU blend (95:5) exhibited excellent antifouling properties and the results indicated that the PDMS:PU blend (95:5) film with micro patterning surface could be employed for antifouling application.
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Affiliation(s)
- Jirasuta Chungprempree
- The Petroleum and Petrochemical College, Chulalongkorn University, Chula Soi 12, Wangmai Pathumwan, Bangkok 10330, Thailand; (J.C.); (S.C.); (J.P.)
- Center of Excellence on Petrochemical and Materials Technology, Chula Soi 12, Wangmai Pathumwan, Bangkok 10330, Thailand
| | - Sutep Charoenpongpool
- The Petroleum and Petrochemical College, Chulalongkorn University, Chula Soi 12, Wangmai Pathumwan, Bangkok 10330, Thailand; (J.C.); (S.C.); (J.P.)
| | - Jitima Preechawong
- The Petroleum and Petrochemical College, Chulalongkorn University, Chula Soi 12, Wangmai Pathumwan, Bangkok 10330, Thailand; (J.C.); (S.C.); (J.P.)
| | - Nithi Atthi
- Thai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, Thailand;
| | - Manit Nithitanakul
- The Petroleum and Petrochemical College, Chulalongkorn University, Chula Soi 12, Wangmai Pathumwan, Bangkok 10330, Thailand; (J.C.); (S.C.); (J.P.)
- Center of Excellence on Petrochemical and Materials Technology, Chula Soi 12, Wangmai Pathumwan, Bangkok 10330, Thailand
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Cai Y, Bing W, Chen C, Chen Z. Gaseous Plastron on Natural and Biomimetic Surfaces for Resisting Marine Biofouling. Molecules 2021; 26:molecules26092592. [PMID: 33946767 PMCID: PMC8125344 DOI: 10.3390/molecules26092592] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/23/2021] [Accepted: 04/26/2021] [Indexed: 11/24/2022] Open
Abstract
In recent years, various biomimetic materials capable of forming gaseous plastron on their surfaces have been fabricated and widely used in various disciplines and fields. In particular, on submerged surfaces, gaseous plastron has been widely studied for antifouling applications due to its ecological and economic advantages. Gaseous plastron can be formed on the surfaces of various natural living things, including plants, insects, and animals. Gaseous plastron has shown inherent anti-biofouling properties, which has inspired the development of novel theories and strategies toward resisting biofouling formation on different surfaces. In this review, we focused on the research progress of gaseous plastron and its antifouling applications.
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Affiliation(s)
- Yujie Cai
- School of Chemistry and Life Science, Changchun University of Technology, 2055 Yanan Street, Changchun 130012, China;
- Advanced Institute of Materials Science, Changchun University of Technology, 2055 Yanan Street, Changchun 130012, China
| | - Wei Bing
- School of Chemistry and Life Science, Changchun University of Technology, 2055 Yanan Street, Changchun 130012, China;
- Advanced Institute of Materials Science, Changchun University of Technology, 2055 Yanan Street, Changchun 130012, China
- Correspondence: (W.B.); (Z.C.)
| | - Chen Chen
- Institute of Food Safety and Environment Monitoring, College of Chemistry, Fuzhou University, Fuzhou 350108, China;
| | - Zhaowei Chen
- Institute of Food Safety and Environment Monitoring, College of Chemistry, Fuzhou University, Fuzhou 350108, China;
- Correspondence: (W.B.); (Z.C.)
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Herzberg M, Berglin M, Eliahu S, Bodin L, Agrenius K, Zlotkin A, Svenson J. Efficient Prevention of Marine Biofilm Formation Employing a Surface-Grafted Repellent Marine Peptide. ACS APPLIED BIO MATERIALS 2021; 4:3360-3373. [PMID: 35014421 DOI: 10.1021/acsabm.0c01672] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Creation of surfaces resistant to the formation of microbial biofilms via biomimicry has been heralded as a promising strategy to protect a range of different materials ranging from boat hulls to medical devices and surgical instruments. In our current study, we describe the successful transfer of a highly effective natural marine biofilm inhibitor to the 2D surface format. A series of cyclic peptides inspired by the natural equinatoxin II protein produced by Beadlet anemone (Actinia equine) have been evaluated for their ability to inhibit the formation of a mixed marine microbial consortium on polyamide reverse osmosis membranes. In solution, the peptides are shown to effectively inhibit settlement and biofilm formation in a nontoxic manner down to 1 nM concentrations. In addition, our study also illustrates how the peptides can be applied to disperse already established biofilms. Attachment of a hydrophobic palmitic acid tail generates a peptide suited for strong noncovalent surface interactions and allows the generation of stable noncovalent coatings. These adsorbed peptides remain attached to the surface at significant shear stress and also remain active, effectively preventing the biofilm formation over 24 h. Finally, the covalent attachment of the peptides to an acrylate surface was also evaluated and the prepared coatings display a remarkable ability to prevent surface colonization at surface loadings of 55 ng/cm2 over 48 h. The ability to retain the nontoxic antibiofilm activity, documented in solution, in the covalent 2D-format is unprecedented, and this natural peptide motif displays high potential in several material application areas.
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Affiliation(s)
- Moshe Herzberg
- The Jacob Blaustein Institutes for Desert Research, Zuckerberg Institute for Water Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Midreshet Ben-Gurion 84990, Israel
| | - Mattias Berglin
- Department of Chemistry and Materials, RISE Research Institutes of Sweden, Borås 501 15, Sweden.,Chemistry and Molecular Biology, Gothenburg University, Gothenburg SE405 30, Sweden
| | - Sarai Eliahu
- The Jacob Blaustein Institutes for Desert Research, Zuckerberg Institute for Water Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Midreshet Ben-Gurion 84990, Israel
| | - Lovisa Bodin
- Department of Chemistry and Materials, RISE Research Institutes of Sweden, Borås 501 15, Sweden
| | - Karin Agrenius
- Department of Chemistry and Materials, RISE Research Institutes of Sweden, Borås 501 15, Sweden
| | - Amir Zlotkin
- DisperseBio Ltd, 27 Kehilat lvov Street, Tel-Aviv 6972513, Israel
| | - Johan Svenson
- Department of Chemistry and Materials, RISE Research Institutes of Sweden, Borås 501 15, Sweden
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38
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Imbalance Fault Classification Based on VMD Denoising and S-LDA for Variable-Speed Marine Current Turbine. JOURNAL OF MARINE SCIENCE AND ENGINEERING 2021. [DOI: 10.3390/jmse9030248] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Marine current energy as a kind of renewable energy has gradually attracted more and more attention from many countries. However, the blade imbalance fault of marine current turbines (MCTs) will have an effect on the power production efficiency and cause damage to the MCT system. It is hard to classify the severity of an MCT blade imbalance fault under the condition of the current instability and seafloor noise. This paper proposes a fault classification method based on the combination of variational mode decomposition denoising (VMD denoising) and screening linear discriminant analysis (S-LDA). The proposed method consists of three parts. Firstly, phase demodulation of the collected stator current signal is performed by the Hilbert transform (HT) method. Then, the obtained demodulation signal is denoised by variational mode decomposition denoising (VMD denoising), and the denoised signal is analyzed by power spectral density (PSD). Finally, S-LDA is employed on the power signal to determine the severities of fault classification. The effectiveness of the proposed method is verified by experimental results under different severities of blade imbalance fault. The stator current signatures of experiments with different severities of blade imbalance fault are used to validate the effectiveness of the proposed method. The fault classification accuracy is 92.04% based on the proposed method. Moreover, the experimental results verify that the influence of velocity fluctuation on fault classification can be eliminated.
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Labriere C, Elumalai V, Staffansson J, Cervin G, Le Norcy T, Denardou H, Réhel K, Moodie LWK, Hellio C, Pavia H, Hansen JH, Svenson J. Phidianidine A and Synthetic Analogues as Naturally Inspired Marine Antifoulants. JOURNAL OF NATURAL PRODUCTS 2020; 83:3413-3423. [PMID: 33054188 DOI: 10.1021/acs.jnatprod.0c00881] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Stationary and slow-moving marine organisms regularly employ a natural product chemical defense to prevent being colonized by marine micro- and macroorganisms. While these natural antifoulants can be structurally diverse, they often display highly conserved chemistries and physicochemical properties, suggesting a natural marine antifouling pharmacophore. In our current report, we investigate the marine natural product phidianidine A, which displays several chemical properties found in highly potent marine antifoulants. Phidianidine A and synthetic analogues were screened against the settlement and metamorphosis of Amphibalanus improvisus cyprids, and several of the compounds displayed inhibitory activities at low micromolar concentrations with IC50 values down to 0.7 μg/mL observed. The settlement study highlights that phidianidine A is a potent natural antifoulant and that the scaffold can be tuned to generate simpler and improved synthetic analogues. The bioactivity is closely linked to the size of the compound and to its basicity. The study also illustrates that active analogues can be prepared in the absence of the natural constrained 1,2,4-oxadiazole ring. A synthetic lead analogue of phidianidine A was incorporated in a coating and included in antifouling field trials, where it was shown that the coating induced potent inhibition of marine bacteria and microalgae settlement.
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Affiliation(s)
- Christophe Labriere
- Department of Chemistry, Chemical Synthesis and Analysis Group, UiT The Arctic University of Norway, N-9037 Tromsø, Norway
| | - Vijayaragavan Elumalai
- Department of Chemistry, Chemical Synthesis and Analysis Group, UiT The Arctic University of Norway, N-9037 Tromsø, Norway
| | - Jannie Staffansson
- Department of Chemistry, Chemical Synthesis and Analysis Group, UiT The Arctic University of Norway, N-9037 Tromsø, Norway
| | - Gunnar Cervin
- Department of Marine Sciences, Tjärnö Marine Laboratory, University of Gothenburg, SE-452 96 Strömstad, Sweden
| | - Tiffany Le Norcy
- Univ. Bretagne-Sud, EA 3884, LBCM, IUEM, F-56100 Lorient, France
| | - Hugo Denardou
- Department of Chemistry, Chemical Synthesis and Analysis Group, UiT The Arctic University of Norway, N-9037 Tromsø, Norway
| | - Karine Réhel
- Univ. Bretagne-Sud, EA 3884, LBCM, IUEM, F-56100 Lorient, France
| | - Lindon W K Moodie
- Department of Medicinal Chemistry and Uppsala Antibiotic Centre, Biomedical Centre, Uppsala University, 75123 Uppsala, Sweden
| | - Claire Hellio
- Univ. Brest, Laboratoire des Sciences de l'Environnement MARin (LEMAR), CNRS, IRD, IFREMER, Brest 29285, France
| | - Henrik Pavia
- Department of Marine Sciences, Tjärnö Marine Laboratory, University of Gothenburg, SE-452 96 Strömstad, Sweden
| | - Jørn H Hansen
- Department of Chemistry, Chemical Synthesis and Analysis Group, UiT The Arctic University of Norway, N-9037 Tromsø, Norway
| | - Johan Svenson
- Department of Chemistry, Chemical Synthesis and Analysis Group, UiT The Arctic University of Norway, N-9037 Tromsø, Norway
- Department of Chemistry, Biomaterial & Textile, RISE Research Institutes of Sweden, Box 857, 501 15 Borås, Sweden
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