A susceptible coordination hybrid based terbium sensibilization coupled ESIPT effects for pattern discrimination of analogues

Shengdi Tai; Sichen Li; Ruijie Zheng; Yan Huang; Kang Yang; Shishen Zhang; Jiadan Xue; Benxia Li; Kun Zhang

doi:10.1016/j.aca.2023.340899

A susceptible coordination hybrid based terbium sensibilization coupled ESIPT effects for pattern discrimination of analogues

Anal Chim Acta. 2023 Mar 22:1247:340899. doi: 10.1016/j.aca.2023.340899. Epub 2023 Jan 30.

Authors

Shengdi Tai¹, Sichen Li¹, Ruijie Zheng¹, Yan Huang¹, Kang Yang¹, Shishen Zhang¹, Jiadan Xue¹, Benxia Li¹, Kun Zhang²

Affiliations

¹ Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, 310018, PR China.
² Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, 310018, PR China. Electronic address: zhangkun@zstu.edu.cn.

PMID: 36781252
DOI: 10.1016/j.aca.2023.340899

Abstract

Multianalyte detection and analogue discrimination are extremely valuable frontier areas for their wide applications in environmental, medical, clinical and industrial analyses. Nowadays, researchers rack their brains on how to develop excellent multianalyte chemosensors that have presented huge challenges in designing high-efficient fluorescent sensing materials and constructing high-throughput detection methods. In this paper, we propose a novel strategy to utilize the dual-emission fluorescent detection platform as a lab-on-a-molecule, arising from the disalicylaldehyde-coordinated hybrid H₂Q_j3/Tb based terbium sensibilization coupled excited-state intramolecular proton transfer effects. Using the statistical analysis (PCA and HCA) for sensing signals of three fluorescence channels (431, 543 and 583 nm), we demonstrate this elaborate chemosensor with multianalyte detection of three species (solvents, anions and cations) and pattern discrimination of analogues. As a result, the H₂Q_j3/Tb shows great lab-on-a-molecule characters for each set of species, resulting in the easier identification of many critical analytes (e.g., H₂O, NO₂^- and Fe³⁺) and discrimination of analogues. In addition, it is also proven to be able to provide reliable content determination for an analyte, especially the NO₂^- (LOD = 0.37 μM), and discrimination for mixed analogues. A combination of easy-to-implement preparation procedure and data analysis technique makes this work promising for not only designing similar lanthanide-based materials but also realizing more high-efficient multianalyte sensing systems towards various potential applications.

Keywords: Analogue discrimination; Lab-on-a-molecule; Lanthanide-based hybrid; Multianalyte detection; Statistical analysis; Terbium sensibilization.