Antifouling Coatings of Catecholamine Copolymers on
Stainless Steel
- Publication date
- Publisher
Abstract
Stainless steel (SS) exhibits good
corrosion resistance in aquatic
environments. Nevertheless, SS is susceptible to fouling by a variety
of micro- and macro-organisms. In this work, the deposition of catecholamine-containing
oligopoly(ethylene glycol) (oligoPEG)- or <i>N</i>-hydroethyl
acrylamide (HEA)-based copolymers and terpolymers on the SS surfaces
provide an alternative to deter biofouling. The mussel-inspired copolymers-
and terpolymers-coated SS surfaces effectively reduced the adhesion
of bacteria (Pseudomonas sp.) and microalgae
(Amphora coffeaeformis) as compared
to that of the pristine SS surface. A fluorescence technique was adopted
to quantitatively determine the number of <i>Amphora</i> cells adhered on the SS substrates. In comparison to the pristine
and copolymers-coated SS surfaces, the terpolymers-coated SS surfaces
were more effective in reducing the settlement of barnacle cyprids
(<i>Amphibalanus</i> (= <i>Balanus</i>) <i>amphitrite</i>). Overall, the antifouling efficiencies of oligoPEG-based
copolymers and terpolymers coatings were higher than that of HEA-based
coatings