文献类型：期刊文献

英文题名：A thioether-rich crown-based highly selective fluorescent sensor for Hg2+ and Ag+ in aqueous solution

作者：Chen, Tao[1]; Zhu, Weiping[1]; Xu, Yufang[1]; Zhang, Shenyi[1]; Zhang, Xiaojun[1]; Qian, Xuhong[1]

机构：[1] Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China

年份：2010

卷号：39

期号：5

起止页码：1316

外文期刊名：Dalton Transactions

收录：EI(收录号：20100812722722)

语种：英文

外文关键词：Chromophores - Solutions

摘要：A new fluorescent sensor 1, based on the naphthalimide chromophore and thioether-rich crown receptor, exhibited dual signaling behaviors for Hg 2+ and Ag+ in aqueous solution. Upon addition of Hg 2+, the fluorescence intensity enhanced in a linear fashion with a quantum yield increase of about 5-fold. Moreover, with the 1-Hg2+ complex, Ag+ was easily recognized by a marked fluorescence quenching. The living cells image experiments demonstrate the value of sensor 1 in fluorescent visualization of Hg2+ ions in biological systems. ? The Royal Society of Chemistry 2010.