A Selective Colorimetric and Fluorometric Chemosensor Based on Conjugated Polydiacetylenes for Cadmium Ion Detection
- 주제(키워드) cadmium , chemosensors , colorimetric sensors , conjugated polymers , Schiff bases
- 주제(기타) Chemistry, Physical
- 설명문(일반) [Yim, Yubin; Yoon, Juyoung] Ewha Womans Univ, Dept Chem & Nano Sci, Seoul 03760, South Korea; [Thanh Chung Pham; Kim, Yong Kyun; Park, Jung Bin; Jeon, Sumin; Ahn, Juhyeon; Lee, Songyi] Pukyong Natl Univ, Dept Chem, Busan 48513, South Korea
- 등재 SCIE
- 발행기관 WILEY-V C H VERLAG GMBH
- 발행년도 2019
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000172036
- 본문언어 영어
- Published As https://dx.doi.org/10.1002/cptc.201900165
초록/요약
In the current study, a polydiacetylene (PDA)-based sensor, derived from a chelidamic acid-picolylamine (CP)-substituted diacetylene monomer, displayed a selective colorimetric and fluorometric change in the presence of cadmium (Cd2+) at pH 7.4. The PDA-CP solutions showed a colorimetric change from blue to violet in response to various amounts of Cd2+. The chemosensor also showed a rapid fluorescence turn-on response and significant selectivity to Cd2+ compared with other metallic cations. The Cd2+-selective PDA-based sensor system facilitated the visual detection of Cd2+ in aqueous solution. The Cd2+ detection limit of PDA-CP was reduced to 1.85x10(-5) M.
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