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Kumawat, Lokesh Kumar, Asif, Mohammad and Gupta, Vinod Kumar (2017) Dual ion selective fluorescence sensor with potential applications in sample monitoring and membrane sensing. Sensors and Actuators B: Chemical, 241. pp. 1090-1098. ISSN 0925-4005
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Abstract
A new sensing functionalized chemosensor 3-hydroxy-2-(1H-indol-3-yl)-4H-chromen-4-one (M1) was readily prepared in facile reaction conditions and explored its sensing nature response towards metal ions in semi-aqueous medium. The chemosensor M1 exhibited high selective and sensitive fluorescence turn “off-on” response for Al3+ and Zn2+ ions in the existence of several metal ions and the changes are enabled for naked-eye detection. These high selectivity expressed by high binding constants 2.62 × 104 (Al3+) and 1.92 × 104 M−1 (Zn2+) calculated by the Benesi-Hildebrand equation based on the emission studies. The binding strategy was also supported by 1H NMR titration.
| Item Type: | Article |
|---|---|
| Keywords: | Chemosensor; Dual metal ion; Reversibility; Real sample; Al3+; Zn2+; |
| Academic Unit: | Faculty of Science and Engineering > Chemistry |
| Item ID: | 11600 |
| Identification Number: | 10.1016/j.snb.2016.10.031 |
| Depositing User: | IR Editor |
| Date Deposited: | 05 Nov 2019 16:57 |
| Journal or Publication Title: | Sensors and Actuators B: Chemical |
| Publisher: | Elsevier |
| Refereed: | Yes |
| Related URLs: | |
| URI: | https://mural.maynoothuniversity.ie/id/eprint/11600 |
| Use Licence: | This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here |
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