Hydrophobic DES Based on Menthol and Natural Organic Acids for Use in Antifouling Marine Coatings.

Autor:	Valente S; LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology, 2829-516 Caparica, Portugal.; Associate Laboratory i4HB-Institute for Health and Bioeconomy, NOVA School of Science and Technology, 2829-516 Caparica, Portugal.; UCIBIO, Chemistry and Life Sciences Departments, NOVA School of Science and Technology, 2829-516 Caparica, Portugal., Oliveira F; LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology, 2829-516 Caparica, Portugal., Ferreira IJ; LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology, 2829-516 Caparica, Portugal., Paiva A; LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology, 2829-516 Caparica, Portugal., Sobral RG; Associate Laboratory i4HB-Institute for Health and Bioeconomy, NOVA School of Science and Technology, 2829-516 Caparica, Portugal.; UCIBIO, Chemistry and Life Sciences Departments, NOVA School of Science and Technology, 2829-516 Caparica, Portugal., Diniz MS; Associate Laboratory i4HB-Institute for Health and Bioeconomy, NOVA School of Science and Technology, 2829-516 Caparica, Portugal.; UCIBIO, Chemistry and Life Sciences Departments, NOVA School of Science and Technology, 2829-516 Caparica, Portugal., Gaudêncio SP; Associate Laboratory i4HB-Institute for Health and Bioeconomy, NOVA School of Science and Technology, 2829-516 Caparica, Portugal.; UCIBIO, Chemistry and Life Sciences Departments, NOVA School of Science and Technology, 2829-516 Caparica, Portugal., Duarte ARC; LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology, 2829-516 Caparica, Portugal.
Jazyk:	angličtina
Zdroj:	ACS sustainable chemistry & engineering [ACS Sustain Chem Eng] 2023 Jun 15; Vol. 11 (27), pp. 9989-10000. Date of Electronic Publication: 2023 Jun 15 (Print Publication: 2023).
DOI:	10.1021/acssuschemeng.3c01120
Abstrakt:	Marine biofouling negatively impacts industries with off-shore infrastructures, such as naval, oil, and aquaculture. To date, there are no ideal sustainable, economic, and environmentally benign solutions to deal with this phenomenon. The advances achieved in green solvents, as well as its application in different industries, such as pharmaceutical and biotechnology, have promoted the emergence of deep eutectic systems (DES). These eutectic systems have applications in various fields and can be revolutionary in the marine-based industrial sector. In this study, the main objective was to investigate the potential use of hydrophobic DES (HDES) based on menthol and natural organic acids for their use as marine antifouling coatings. Our strategy encompassed the physicochemical characterization of different formulations, which allowed us to identify the most appropriate molar ratio and intermolecular interactions for HDES formations. The miscibility of the resulting HDES with the marine coating has been evaluated and proven to be successful. The Men/OL (1:1) system proved to be the most promising in terms of cost-production and thus was the one used in subsequent antifouling tests. The cytotoxicity of this HDES was evaluated using an in vitro cell model (HaCat cells) showing no significant toxicity. Furthermore, the application of this system incorporated into coatings that are used in marine structures was also studied using marine species ( Mytilus edulis mussels and Patella vulgata limpets) to evaluate both their antifouling and ecotoxicity effects. HDES Men/OL (1:1) incorporated in marine coatings was promising in reducing marine macrofouling and also proved to be effective at the level of microfouling without viability impairment of the tested marine species. It was revealed to be more efficient than using copper oxide, metallic copper, or ivermectin as antifouling agents. Biochemical assays performed on marine species showed that this HDES does not induce oxidative stress in the tested species. These results are a strong indication of the potential of this HDES to be sustainable and efficiently used in marine fouling control technologies. Competing Interests: The authors declare no competing financial interest. (© 2023 The Authors. Published by American Chemical Society.)
Databáze:	MEDLINE
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