Biomimetic antifouling coatings: Harnessing nature’s strategies for sustainable marine protection

Biofouling, the unwanted buildup of microorganisms, plants, algae, and animals on underwater structures, presents considerable difficulties in multiple sectors, especially in maritime activities. Conventional antifouling techniques, typically dependent on biocidal coatings, have proven successful but pose environmental issues because of their harmfulness. As a result, studies have increasingly focused on biomimetic antifouling coatings that take cues from the natural antifouling methods seen in marine life. These advanced coatings seek to imitate the natural physical and chemical protections, providing environmentally friendly options to traditional techniques. Recent research has emphasized the promise of micro-structured surfaces, like those resembling shark skin, and chemical repellents derived from marine organisms, in inhibiting biofouling. Although promising, the creation and widespread use of these biomimetic coatings pose challenges, such as difficulties in fabrication and worries about durability. Future studies aim to address these challenges, concentrating on the development of sustainable, efficient, and scalable antifouling strategies.