Design of a large Stokes shift ratiometric fluorescent sensor with hypochlorite detection towards the potential application as invisible security ink

Junying Zhang; Ruochen Li; Yiling Bei; Xing-Dong Xu; Wenbing Kang

doi:10.1016/j.saa.2022.121859

Design of a large Stokes shift ratiometric fluorescent sensor with hypochlorite detection towards the potential application as invisible security ink

Spectrochim Acta A Mol Biomol Spectrosc. 2023 Jan 15:285:121859. doi: 10.1016/j.saa.2022.121859. Epub 2022 Sep 9.

Authors

Junying Zhang¹, Ruochen Li¹, Yiling Bei¹, Xing-Dong Xu², Wenbing Kang³

Affiliations

¹ National Engineering Research Center for Colloidal Materials, Key Laboratory of Special Functional Aggregated Materials of Ministry of Education, Shandong Key Laboratory of Advanced Silicone Materials and Technology, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, Shandong, China.
² National Engineering Research Center for Colloidal Materials, Key Laboratory of Special Functional Aggregated Materials of Ministry of Education, Shandong Key Laboratory of Advanced Silicone Materials and Technology, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, Shandong, China. Electronic address: xuxd@sdu.edu.cn.
³ National Engineering Research Center for Colloidal Materials, Key Laboratory of Special Functional Aggregated Materials of Ministry of Education, Shandong Key Laboratory of Advanced Silicone Materials and Technology, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, Shandong, China. Electronic address: wbkang@sdu.edu.cn.

PMID: 36108409
DOI: 10.1016/j.saa.2022.121859

Abstract

Hypochlorite (ClO^-) as a well-known highly reactive oxygen species (ROS), is widely used as preservative and household disinfectant in daily life. Although many fluorescence imaging sensors for ClO^- have been reported, the development of ClO^- ratio fluorescence sensors with large Stokes shift is still quite limited. This sensor shows obvious benefits including minimizing environmental intervention and improving signal-to-noise ratio. In the present project, we report an innovative conjugated pyrene-based system, 1-B, as a chlorine fluorescence sensor. The detector exhibits ratio detection performance, large Stokes and emission shifts. Furthermore, the system has desired sensitivity as well as selectivity for ClO^-. Based on these excellent properties, the sensor 1-B was successfully used as ink to encrypt patterns and anti-counterfeiting information through inkjet printing technology. Compared with the existing probes, the probe shows some superior characteristics, which provides a promising tool for exploring the role of ClO^- response sensor in the field of anti-counterfeiting.

Keywords: Fluorescent sensor; Hypochlorite; Patterning; Pyrene; Ratiometric.

MeSH terms

Fluorescent Dyes
Hypochlorous Acid*
Ink*
Optical Imaging
Spectrometry, Fluorescence

Substances

Hypochlorous Acid
Fluorescent Dyes