121st General Meeting of the KCS

Type Poster Presentation
Area Polymer Chemistry
Room No. Event Hall
Time 4월 20일 (금요일) 11:00~12:30
Code POLY.P-2
Subject Fucoidan Catechol as a Multipurpose Antifouling Coating Agent
Authors yeonwoo jeong, Jeong Woo Hong1, Sung Min Kang2,*
Department of Chemistry, Chungbuk Natioanl University, Korea
1Chemistry, Chungbuk Natioanl University, Korea
2Department of Chemistry, Chungbuk National University, Korea
Abstract The precise control of biofouling, which is the unwanted adsorption of biomolecules and micro/macro organisms on solid surfaces, is a prerequisite for wider applicability of the functional materials that are currently being used in biomedical and marine industries. One of the frequently used methods for controlling biofouling is the use of surface coatings with antifouling materials. For example, poly(ethylene glycol), polysaccharides, and zwitterionic polymers can suppress biofouling, and protein- and cell-resistant surfaces have successfully been prepared using these materials. However, these previously developed materials can be degraded in long-term applications, and the steps required for preparing the materials are complicated. Consequently, the need to develop new antifouling materials has been continuous. Herein, we report fucoidan, which is a marine-derived, environmentally friendly polysaccharide, as a new type of antifouling material that is safe and broadly applicable. Fucoidan was conjugated with catechols, which are known to act as adhesives for grafting functional molecules onto solid substrates. The resultant material, fucoidan catechol, was subsequently utilized for robust fucoidan coatings of solid substrates, and the fucoidan catechol-coated surfaces showed excellent antifouling capability for different fouling organisms, including platelets, bacteria, and marine diatoms. The fucoidan catechol coating was also confirmed to be biocompatible upon skin contact, demonstrating its potential use in public places for inhibiting contagions.
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