화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2021년 봄 (05/12 ~ 05/14, 부산 벡스코(BEXCO))
권호 25권 1호
발표분야 포스터-고분자
제목 Conjugated Polydiacetylenes (PDAs) Based Fluorescent and Colorimetric Sensor for Visual Simultaneous Detection and Real-Time Monitoring of Cadmium Ions
초록  We successfully developed the polydiacetylene monomer PCDA-HP linked to a cadmium ion (Cd2+) chelate [5-hydroxy-N1,N3-bis(pyridin-2-ylmethyl)isophthalamide (HP)] then polymerized  them to form a polydiacetylene-based sensor (PDA-HP), which was prepared via photopolymerization with PCDA-HP and PCDA at a ratio of 1:9. The PDA-HP displayed selective and sensitive colorimetric and fluorometric change upon addition of the cadmium ions at both pH 7.4 and 6.8, which was highly selective for colorimetric change by Cd2+ over other metal ions. In addition, the PDA-HP also showed a red fluorescence change in the presence of Cd2+ at both pH 7.4 and 6.8. Naked-eye detection of Cd2+ was accomplished in an aqueous solution through a PDA based sensor system. Finally, the lowest energy structure of an HP chelator was obtained by the crystal structure and density functional theory (DFT) calculations.  
저자 이성만, Thanh Chung Pham, 이송이
소속 부경대
키워드 Polydiacetylene; Sensor; Heavy atom ion detection
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