Antifouling, Antimicrobial, and Antibiocorrosion Multilayer Coatings Assembled by Layer-by-layer Deposition Involving Host–Guest Interaction

Abstract

Layer-by-layer (LBL) deposition of polyethylenimine-β-cyclodextrin (PEI-β-CD) and ferrocene-modified chitosan (Fc-CHT) via host–guest interaction chemistry was developed for the fabrication of low-fouling, antimicrobial, and biocorrosion inhibition multilayer coatings on stainless steel. An electrochemical method is proposed to monitor and determine the LBL deposition process. The resulting multilayer coatings exhibit good resistance to bacterial adhesion, including Pseudomonas sp. and Staphylococcus aureus, and microalgal attachment of Amphora coffeaeformis. Settlement of barnacle cyprids is also significantly reduced on the bilayer-coated substrates. As the number of assembled host–guest bilayers increases, the antifouling efficacy, antimicrobial efficiency, and antibiocorrosion performance also improve progressively. The stability and durability of the multilayer coatings were ascertained after a 30-day immersion treatment in seawater. Thus, the multilayer coatings deposited via LBL method are potentially useful as environmentally friendly coatings for combatting biofouling and biocorrosion in marine and aquatic environments.

Functionalized Polyelectrolytes for Bioengineered Interfaces and Biosensing Applications

“…Both small and relatively bulky functional groups (e.g., Fc, PEG) appended to the PE have been shown to form various LbL architectures 195,196 and the structural and mechanical properties depend on the final assembled PEM. Mariani and collaborators formed a bilayer for SAv detection in spiked human saliva samples (Figure 7a).…”

“…246 A film exhibiting a combination of antifouling, antimicrobial, and antibiocorrosion effects was developed by Xu et al in a PEM formed by host-guest interactions between PEI-β-CD (PEI-CD) and ferrocenemodified chitosan (chitosan-Fc). 195 The efficiency of antifouling and antimicrobial properties was investigated using gram-positive/negative bacteria, the model microalgae Amphora coffeaeformis (Figure 9), and the arthropod barnacle cyprid, while the antibiocorrosion was investigated by Tafel polarization analysis, showing retention of stability even after 30 days of exposure to seawater.…”

Adhesion of bacteria to wood coatings

“…Kar nekaj le-teh se nanaša na aplikacije v dentalni medicini (Pereira et al, 2011;Chau et al, 2014), veliko člankov pa je s področja premazov proti obraščanju morskih organizmov oz. antivegetativnih premazov (Dobretsov & Thomason, 2011;Xu et al, 2016). Po našem znanju je v literaturi manj poročil o adheziji bakterij na polimerne filme, ki so po svojih lastnostih podobni tistim, ki jih uporabljamo v obliki premazov za les.…”

Fast Self‐Healing of Polyelectrolyte Multilayer Nanocoating and Restoration of Super Oxygen Barrier

“…As a simple and powerful technique for deposition of multifunctional thin films, LbL assembly has been widely studied over the past few decades . These multilayered and typically ionically bonded materials have achieved superior properties including super gas barrier, energy storage and conversion, flame resistance, antifouling surfaces, and drug delivery . The self‐healing behavior of LbL‐assembled films is well known .…”