Sensing behavior and logic operation of a colorimetric fluorescence sensor for Hg(2+)/Cu(2+) ions

Tian He; Cuiling Lin; Zhengye Gu; Luonan Xu; Anle Yang; Yuanyuan Liu; Huajun Fang; Huayu Qiu; Jing Zhang; Shouchun Yin

doi:10.1016/j.saa.2016.05.032

Sensing behavior and logic operation of a colorimetric fluorescence sensor for Hg(2+)/Cu(2+) ions

Spectrochim Acta A Mol Biomol Spectrosc. 2016 Oct 5:167:66-71. doi: 10.1016/j.saa.2016.05.032. Epub 2016 May 24.

Authors

Tian He¹, Cuiling Lin¹, Zhengye Gu¹, Luonan Xu¹, Anle Yang¹, Yuanyuan Liu¹, Huajun Fang¹, Huayu Qiu¹, Jing Zhang¹, Shouchun Yin²

Affiliations

¹ College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, PR China.
² College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, PR China. Electronic address: yinsc@hznu.edu.cn.

PMID: 27239948
DOI: 10.1016/j.saa.2016.05.032

Abstract

A BODIPY-based 1 as a colorimetric fluorescence sensor was synthesized, and its metal sensing property was investigated. 1 displayed high selectivity and sensitivity towards Hg(2+) and Cu(2+) ions among 15 different metal cations. The addition of Hg(2+) and Cu(2+) ions into 1 in CH3CN resulted in a significant bathochromic shift of the UV absorption spectra from 533nm to 560nm and 593nm, respectively, changing the corresponding colors from pink to purple and blue. When excited at 530nm, the fluorescence intensity of 1 was quenched over 75% upon addition of Hg(2+) ions, while 1 with Cu(2+) ions exhibited significant fluorescence enhancement with a 23nm red-shift. Based on these results, three logic gates (OR, IMPLICATION, and INHIBIT) were obtained by controlling the chemical inputs.

Keywords: BODIPY; Colorimetric sensors; Copper (II); Fluorescent sensors; Mercury (II); Molecular logic gate.

Publication types

Research Support, Non-U.S. Gov't