標題: | A fully-aqueous red-fluorescent probe for selective optical sensing of Hg2+ and its application in living cells |
作者: | Pola, Murali Krishna Raju, Mandapati V. Ramakrishnam Lin, Chein-Ming Putikam, Raghunath Lin, Ming-Chang Epperla, Chandra Prakash Chang, Huan-Cheng Chen, San-Yuan Lin, Hong-Cheu 材料科學與工程學系 應用化學系 Department of Materials Science and Engineering Department of Applied Chemistry |
關鍵字: | Aqueous medium;Push-pull chromophore;ICT;Living cell |
公開日期: | 七月-2016 |
摘要: | A new red-fluorescent mercury ion sensor material is designed and synthesized, which is composed of at weezer-shaped hydrophilic probe containing bifurcated soft-base atoms N and S coupled with 2-dicyanomethylene-3-cyano-4,5,5-trimethyl-2,5-dihydrofuran (TCF) unit. By virtue of the strong electron-accepting nature of TCF unit (as a push pull chromophore), this designed sensor material can selectively detect Hg2+ over various tested metal ions in a 100% aqueous medium via naked-eye and photoluminescence (PL) observations. Theoretical and time-resolved photoluminescence measurements further confirmed the selectivity and reversibility of the probe towards Hg2+ via intramolocular charge transfer mechanism in this sensor material. Moreover, the living cell tests by confocal fluorescence images of this sensor material towards Hg2+ were also investigated. Finally, distinguished absorption changes and fluorescence quenching spectral appearances allowed us to present the selective optical indicator of Hg2+ via TCF moiety for the first time. (C) 2016 Elsevier Ltd. All rights reserved. |
URI: | http://dx.doi.org/10.1016/j.dyepig.2016.03.028 http://hdl.handle.net/11536/133909 |
ISSN: | 0143-7208 |
DOI: | 10.1016/j.dyepig.2016.03.028 |
期刊: | DYES AND PIGMENTS |
Volume: | 130 |
起始頁: | 256 |
結束頁: | 265 |
顯示於類別: | 期刊論文 |