A tricarbocyanine near-infrared fluorescent probe for sulfide through a copper displacement mechanism

作者：Yang, Xiaojing; Shen, Liqiao; Bao, Haibo; Fang, Xinxiu; Xu, Jingwei; Zhao, Yongxia^*; Yang, Wei

来源：Sensors and Actuators B: Chemical , 2015, 220: 1361-1367.

DOI：10.1016/j.snb.2015.07.057

• Near infrared probe
• Sulfide sensor
• Tricarbocyanine dyes
• Copper displacement

A near-infrared fluorescent probe 1R806-DPAP was developed based on tricarbocyanine dyes. 1R806-DPAP functioned as an "on-off" sensor for Cu2+. The resulted Cu2+-IR806-DPAP complex selectively responded to S2- over other anions, functioning as an "off-on" sensor for S2- through a displacement mechanism. The detection limit of Cu2+-IR806-DPAP for S2- was 1.79 mu M. The applications of 1R806-DPAP and Cu2+-1R806-DPAP in living cells were also tested.

• 出版日期2015-12-1
• 单位中国科学院长春应用化学研究所; 吉林大学; 中国科学院大学; 电分析化学国家重点实验室