Peer-Reviewed Journal Details
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Manolakis, Ioannis and Azhar, Usaid
Recent Advances in Mussel-Inspired Synthetic Polymers as Marine Antifouling Coatings
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Synthetic oligomers and polymers inspired by the multifunctional tethering system (byssus) of the common mussel (genusMytilus) have emerged since the 1980s as a very active research domain within the wider bioinspired and biomimetic materials arena. The unique combination of strong underwater adhesion, robust mechanical properties and self-healing capacity has been linked to a large extent to the presence of the unusual alpha-amino acid derivativel-DOPA (l-3,4-dihydroxyphenylalanine) as a building block of the mussel byssus proteins. This paper provides a short overview of marine biofouling, discussing the different marine biofouling species and natural defenses against these, as well as biomimicry as a concept investigated in the marine antifouling context. A detailed discussion of the literature on theMytilusmussel family follows, covering elements of their biology, biochemistry and the specific measures adopted by these mussels to utilise theirl-DOPA-rich protein sequences (and specifically theortho-bisphenol (catechol) moiety) in their benefit. A comprehensive account is then given of the key catechol chemistries (covalent and non-covalent/intermolecular) relevant to adhesion, cohesion and self-healing, as well as of some of the most characteristic mussel protein synthetic mimics reported over the past 30 years and the related polymer functionalisation strategies withl-DOPA/catechol. Lastly, we review some of the most recent advances in such mussel-inspired synthetic oligomers and polymers, claimed as specifically aimed or intended for use in marine antifouling coatings and/or tested against marine biofouling species.
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