화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2017년 가을 (10/11 ~ 10/13, 제주컨벤션센터)
권호 42권 2호
발표분야 고분자합성
제목 Single molecular probe for multiple analyte sensing : Efficient and selective detection of mercury and fluoride ions
초록 A molecular probe based on the newly exploited aldoxime chemistry was designed for the dual sensing of Hg2+ and F− ions. The probe exhibited a 70 nm red shift in its absorption maximum upon the addition of Hg2+ ions, which was accompanied by a change in the color of the solution from pale yellow to dark violet. Interestingly, Azo-2 also exhibited high sensitivity and selectivity toward F− ions in a DMSO solution, which was achieved by the F− ion-induced deprotonation of oxime-OH and the subsequent formation of an energetically favored HF2− species. A change in the color of the solution from pale yellow to dark red helped detect F− ion visibly. The oxime anion generated by F− in a DMSO solution was reacted with water molecules to return to the original protonated oxime, proving that the entire process is reversible.
저자 이형일, 김은재
소속 울산대
키워드 dual sensor; Mercury sensor; Fluoride sensor; oxime; colorimetric
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