Functional Organic Thin Films: Application to Antibacterial/Universal Coatings
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Bacteria have a strong tendency to adhere and to grow on solid substrates under biological environments. They quickly proliferate and form three-dimensional communities named as biofilm. Biofilms can cause severe medical infection and can be crucial problems for many implantable biomaterials and medical devices. We have synthesized versatile antibacterial materials by introducing catechol moiety into the marine-derived polysaccharides. The robust antibacterial coating was accomplished by using coordination chemistry between catechol groups and iron(III) ions. Polymeric self-assembled monolayers was also employed to develop facile antibacterial coatings on various oxide-based substrates. As a universal coating method, the coordination chemistry of catechol-metal ion was further investigated and turmeric-based transparent coating strategy was developed as well. Herein, I will present how we have designed the organic materials and developed the functional coatings.