A fluorescent probe for the dual-channel detection of Hg2+/Ag+ and its Hg2+-based complex for detection of mercapto biomolecules with a tunable measuring range

作者：Fan, Juan; Chen, Cheng; Lin, Qian; Fu, Nanyan^*

来源：Sensors and Actuators B: Chemical , 2012, 173: 874-881.

DOI：10.1016/j.snb.2012.08.004

• Mercury
• Silver
• Thiol
• Cysteine
• Fluorescent chemosensor
• Squaraine

A novel squaraine dye (SQ-1) was developed and its chemosensor behavior toward various metal ions was explored. SQ-1 exhibited selectivity and sensitivity to Hg2+ and Ag+ compared to other metal ions, and it can detect Hg2+ and Ag+ by use of an EDTA reversible experiment. More importantly, the SQ-1-Hg2+ complex can also serve as a colorimetric and fluorescent turn-on sensor for thiol-containing biomolecules, and a dynamic measuring range could be obtained by adjusting the concentration of Hg2+.

• 出版日期2012-10
• 单位福州大学