Cd2+ and Zn2+ fluorescence turn-on sensing and the subsequent detection of S2− by a quinolimide-based sensor in water and living cells with application in the combinational logic gate. (27th August 2022)

• Record Type: Journal Article
• Authors: Zhang, Yu; Qu, Wenjing; Yang, Jianhua; Jia, Lihua; Li, Lan; Cao, Hongjie; Guo, Xiangfeng
• Is Part Of: Tetrahedron. Volume 121(2022)
• Publication Date: 2022-08-27
• Subjects: Quinolimide -- Sensor -- Cd2+ -- Zn2+ -- S2-; Chemistry, Organic -- Periodicals; 547.005
• DOI: 10.1016/j.tet.2022.132916
• Languages: English
• ISSNs: 0040-4020

Abstract

Abstract: A novel sensor T2 was synthesized through the introduction of N, N -di (pyridin-2-ylmethyl)ethane-1, 2-diamine into the quinolimide fluorophore. T2 could detect Cd 2+ and Zn 2+ via fluorescence enhanced signals, and Cd 2+ was distinguished from Zn 2+ through the visible color change and the addition of S 2− . The T2 -Cd 2+ complex exhibited the exceptional selectivity to S 2− through the restored fluorescence. Moreover, the combinational logic gate with OR and INHIBIT functions was constructed by using the controlled fluorescence "off-on" states of T2 . The recoveries of Cd 2+ and Zn 2+ in water samples with T2 were in range of 95.6%–106.5%. And T2 was used for the visualization of Cd 2+, Zn 2+, and S 2− in yeast cells. Graphical abstract: Image 1 Highlights: The quinolimide-based sensor T2 was developed for sensing Cd 2+, Zn 2+, and S 2− . T2 could distinguish Cd 2+ from Zn 2+ through the visible color change and the addition of S 2− . The T2-Cd 2+ complex exhibited the exceptional selectivity to S 2− . The combinational logic gate with OR and INHIBIT functions was constructed. T2 was applied to detect Cd 2+, Zn 2+, and S 2− in water samples as well as in yeast cells.