A novel ratiometric fluorescent sensor for Ag plus based on two fluorophores

作者：Cen, Ming Jun; Chang, Tao; Yin, Yao Bing; Li, Xiao Liang^*; He, Yong Wu^*

来源：Methods and Applications in Fluorescence, 2018, 6(3): 035005.

DOI：10.1088/2050-6120/aabcf1

• fluorescence
• sensor
• Ag
• ratiometric

A novel ratiometric fluorescent probe BCB was reported for the first time for the sensitive and selective analysis of Ag+ based on two Boradiazaindacene (BODIPY) as both the reference fluorophore and recognition part. Upon the addition of Ag+ ions, a strong fluorescence emission at 570 nm from recognition BODIPY would be appeared, whereas the fluorescence of the other BODIPY at 535 nm would be a constant reference fluorescence signal. As a result, the ratio of fluorescence intensity (lambda 570/lambda 535) was changed from 0.16 to 1.0. And the selectivity of BCB towards Ag+ over other metal ion was excellent. Other metal ions, such as Cd2+, Cu2+, Fe3+, Hg2+, Mg2+, Ni2+, Pb2+ and Zn2+ showed negligible changes in the both absorption and fluorescence spectra of BCB.

• 出版日期2018-6
• 单位河北工程大学