| 학회 | 한국고분자학회 |
| 학술대회 | 2004년 가을 (10/08 ~ 10/09, 경북대학교) |
| 권호 | 29권 2호, p.87 |
| 발표분야 | 신규고분자 합성 |
| 제목 | Self-amplifying fluorescent conjugated polymer as a novel fluoride sensor |
| 초록 | Fluoride has unique chemical properties and its recognition and detection are of growing interest because it is associated with nerve gases and the refinement of uranium used in nuclear weapons manufacture. As a result, there is a need to develop new selective and sensitive methods for fluoride detection in environments that are not easily served by conventional ion-selective electrodes.1 An approach to greater sensitivity in fluorescence detection schemes is to use the exciton-transporting properties of semiconducting polymers to amplify perturbations produced by analyte binding. New analyte-triggered emissions offer high specificity and low background.2 In consideration of how to best construct such a system for selective detection of fluoride detection of fluoride ions, we have explored schemes using the unique chemical reactivity of fluoride ions with silicon, rather than elaborate receptors. In a fusion of these different elements, we report a novel fluoride-sensing system in which a fluoride trigerred Si-O bond cleavage results in the formation of a highly fluorescent coumarin and show how the interconnection of this transduction element to a conjugated polymer produces a 100-fold sensitivity enhancement.3 -References 1. For a recent review on anion detection, see: P. D. Beer and P. A. Gale, Angew. Chem. Int. Ed., 40, 486 (2001). 2. D. T. McQuade, A. H. Hegedus and T. M. Swager, J. Am. Chem. Soc., 122, 12389(2000) 3. T.-H. Kim and T. M. Swager, Angew. Chem. Int. Ed., 42, 4803 (2003). |
| 저자 | 김태현1, T. M. Swager2 |
| 소속 | 1인천대, 2Department of Chemistry |
| 키워드 | fluorescence; conjugated polymer; sensor; fluoride |
