121st General Meeting of the KCS

Type Poster Presentation
Area Material Chemistry
Room No. Event Hall
Time 4월 20일 (금요일) 11:00~12:30
Code MAT.P-407
Subject Development of Spray Coating of Brown Algae-Derived Polysaccharide for Antibacterial Applications
Authors soojeong cho, Woo Kyung Cho*, Joon Sig Choi1, Sung Min Kang2, yeonwoo jeong3
Department of Chemistry, Chungnam National University, Korea
1Department of Biochemistry, Chungnam National University, Korea
2Department of Chemistry, Chungbuk National University, Korea
3Department of Chemistry, Chungbuk Natioanl University, Korea
Abstract Bacteria can adhere to various surfaces and rapidly proliferate, forming biofilm. Biofilm can serve as a reservoir of spreading the bacterial cells and can be crucial problems for public health. To prevent bacterial contamination on surfaces, antibacterial materials and their coating methods have been studied. Herein, we synthesized an antibacterial material by introducing catechol group into brown algae (Fucus vesiculosus)-derived fucoidan via amide coupling. Spray coating method, which can be applied to large surface area, was devised through the crosslinking between ferric ion and catechol-conjugated fucoidan. The fucoidan was applied to stainless steel and titanium dioxide and the fucoidan-coated substrates were characterized by using ellipsometer, contact angle goniometer, and X-ray photoelectron spectroscopy. We demonstrated that the fucoidan-coated substrates have antibacterial property, compared to bare substrates, using E. Coli. We also applied the spray coating of fucoidan to straps of train and confirmed the antibacterial effect of the spray coating. We think this approach would be utilized antibacterial coatings for equipment in public transportation to prevent infectious harmful substances from spreading.
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