Journal
RSC ADVANCES
Volume 6, Issue 25, Pages 20901-20915Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra27489c
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Funding
- STDF [STDF-STF-Cycle4-6392, GE-SEED-6879]
- German Academic Exchange Service (DAAD) through PPP Agypten [57085711]
- BMBF project OptiMat [03SF0492C]
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Since the use of organotin as antifouling additives was prohibited in 2003, many researchers have endeavored to design and develop novel economic environment-friendly marine antifouling additives. This work reports the successful functionalization of biopolymeric chitosan, isolated from shrimp shells, with salicylidene ionic liquid (IL-Sal) brushes, (ILCSB1-6). These designed architectures were structurally and morphologically characterized. Marine biofouling-inducing bacterial strains (S. aureus, E. coli, A. hydrophila and Vibrio) were selected as microfoulants for a laboratory antibacterial and biofilm susceptibility assay investigation. Our outcomes unveiled a novel promising ecofriendly biocidal agent with excellent and broad antibacterial efficacy compared to parent chitosan and the standard antifoulant, Diuron (R). The fabricated poly-IL-brushes chitosan architectures were subjected to a rigorous test in a field trial in Red Sea water. Our findings provide new insights into eco-friendly antifouling additives as an alternative to traditional antifouling agents. Novel IL-functionalized chitosan-based coatings exhibited long-term durability, surface inertness and promising antifouling performance.
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