Youming Shen, Youyu Zhang, Xiangyang Zhang
Jun 12, 2014
Citations
0
Influential Citations
26
Citations
Journal
Analytical Methods
Abstract
A new and simple fluorescent probe bearing 7-nitrobenz-2-oxa-1,3-diazole and N,N-bis(thiophen-2-ylmethyl)ethane-1,2-diamine was developed as a fluorescent chemosensor with high selectivity and sensitivity toward Hg2+ over other cations tested. The signaling is due to the coordination of S and N atoms of N,N-bis(thiophen-2-ylmethyl)ethane-1,2-diamine to Hg2+. Upon addition of 30 equivalents of Hg2+, a 45-fold increase in fluorescence emission intensity was observed. Moreover, the probe is further successfully used to image Hg2+ in MCF-7 cells.