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Hg2+-selective fluorogenic signaling probe based on the hydrolysis of hydrazone
- Authors
- Choi, Myung Gil; Ryu, Hyein; Han, Min Su; Chang, Suk-Kyu
- Issue Date
- Sep-2016
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Hg2+ ions; Fluorescence signaling; Hydrazone hydrolysis; Methoxynaphthaldehyde; Smartphone
- Citation
- TETRAHEDRON LETTERS, v.57, no.39, pp 4360 - 4363
- Pages
- 4
- Journal Title
- TETRAHEDRON LETTERS
- Volume
- 57
- Number
- 39
- Start Page
- 4360
- End Page
- 4363
- ISSN
- 0040-4039
- Abstract
- A simple Hg2+ elective fluorogenic signaling probe based on methoxynaphthalene hydrazone was investigated. Hydrazone 1 gave prominent fluorescent signals in response to Hg2+ ions in a 1:1 mixture of acetate buffer (pH 4.8) and DMSO. The fluorescence signaling was due to the Hg2+-selective hydrolysis of hydrazone to afford the strongly fluorescent methoxynaphthaldehyde. Hg2+-selective signaling of 1 was not affected by the presence of representative metal ions as the background. Hg2+-selective fluorescence signaling by 1 was possible with a detection limit of 6.0 x 10(-6) M. As a practical application, convenient detection of Hg2+ ions using a smartphone as a portable signaling processor was conducted. (C) 2016 Elsevier Ltd. All rights reserved.
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