Adaptive Coatings with Anticorrosion and Antibiofouling Properties

Abstract

Biofouling on surfaces immersed in aquatic environment induces catastrophic corrosion of metallic materials in petrochemical infrastructures, maritime facilities, and power plants. To combat the synergistic effect of biofouling and corrosion on the deterioration of metallic materials, smart coatings possessing a dual function of antibiofouling and anticorrosion properties are needed. Herein, redox‐responsive copolymer conjugates are synthesized and employed as coatings with the dual function of biofouling and corrosion mitigation. The dual function of copolymers is attributed to fluorinated units and the corrosion inhibitor 2‐mercaptobenzothiazole (MBT) conjugated via disulfide linkages. Indeed, the disulfide linkages can be cleaved in a reducing environment, yielding controlled release of the corrosion inhibitor MBT during corrosion process. The antibiofouling action against protein adsorption and algal attachment is enabled by cooperation of the repellent characteristic of fluorinated moieties and the biocidal effect of conjugated MBT.

Advancing Strategies of Biofouling Control in Water-Treated Polymeric Membranes

“…The anti-adhesion approach is to avoid the macromolecules’ attachment and microbes’ adsorption by constructing a surface with fouling resistance or fouling release properties. For instance, in one study zwitterionic and amphiphilic polymers were grafted or coated onto a membrane surface to achieve a hydrophilic and low surface energy structure [ 59 , 60 ]. The anti-microbial approach is to suppress the microbes’ growth and multiplication by using bactericidal agents [ 61 , 62 ].…”

Cerium‐Based Metal–Organic Framework with Intrinsic Haloperoxidase‐Like Activity for Antibiofilm Formation

“…[ 5 ] Current treatments for surface‐adhered biofilms can be categorized into three types. The first one is mainly based on surface performances, [ 6 ] including surface chemistry modifications [ 7 ] and construction of specific topography, [ 8 ] both of which are designed for biofilm prevention but are unable to eliminate the formed biofilm. Utilizing bactericidal materials is another method for biofilm inhibition.…”

Recent Progress on Bioinspired Antibacterial Surfaces for Biomedical Application

“…Typical examples of natural surfaces that exhibit antibacterial properties include the lotus leaf, wings of cicadae, wings of dragonflies, wings of planthoppers, springtail skin, shark skin, and gecko feet. Unlike antibiotic treatment, natural surfaces can physiochemically minimize bacterial infection by interfering with the surface–bacteria interaction, which fundamentally avoids the evolution of multidrug resistance [ 1 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ]. Inspired by these elegant biological surfaces, manmade antibacterial surfaces have emerged as an efficient alternative to antibiotics for addressing bacterial challenges.…”