The synthesis of crown ether-appended dichlorofluoresceins and their selective Cu2+ chemosensing
- Authors
- Kim, Mi Hee; Noh, Jae Hyun; Kim, Sudeok; Ahn, Sangdoo; Chang, Suk-Kyu
- Issue Date
- Sep-2009
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Dichlorofluorescein; Aza-crown ether; Chemosensor; Cu2+ sensing; Fluoroionophore
- Citation
- DYES AND PIGMENTS, v.82, no.3, pp 341 - 346
- Pages
- 6
- Journal Title
- DYES AND PIGMENTS
- Volume
- 82
- Number
- 3
- Start Page
- 341
- End Page
- 346
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/23033
- DOI
- 10.1016/j.dyepig.2009.02.004
- ISSN
- 0143-7208
- Abstract
- Dichlorofluorescein derivatives with two aza-crown ether binding units were prepared by the Mannich reaction and their chemosensing behaviors toward transition metal ions were investigated. An 18-crown-6 ether derivative exhibited pronounced Cu2+-selective fluorescence signaling, with selectivity over other common physiologically important alkali, alkaline earth and transition metal ions. The compound also displayed 1:1 complex formation with Cu2+ ion, with a detection limit of 2.9 x 10(-6) M in an aqueous 50% DMSO solution at pH 7, showing that it may offer potential as a chemosensor for the detection of submillimolar Cu2+ ions in physiological environments. A 15-Crown-5 ether analogue also revealed selective Cu2+ signaling, although with somewhat diminished selectivity compared with its 18-crown-6 counterpart. (C) 2009 Elsevier Ltd. All rights reserved.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Natural Sciences > Department of Chemistry > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/23033)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.