Ex_g-C3N4 as a novel fluorescent probe for sensitive detecting ClO− in water samples with portable test strip

Yuan, Yi; Yan, Jun; Liu, Jianfei; Wang, Yaru; Chen, Yunlin

doi:10.1016/j.aca.2022.340715

Cited by 6 publications

(1 citation statement)

References 28 publications

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“…In this regard fluorescent chemosensors receive extensive attention and application in view of their high sensitivity and selectivity, and temporal and spatial resolution for real-time imaging. [12][13][14][15][16][17][18] The design of ClO À fluorescent probes is mainly based on the selective oxidation of specific response groups by ClO À , including C=N double bond, [19][20][21][22][23][24][25][26] C=C double bond, [27][28][29][30] chalcogenide [sulphur (S) and selenium (Se)] atoms, [31][32][33][34][35] amido group, [36][37][38][39][40] p-aminophenol analogues, [41][42][43][44] thiocarbamate moiety, [45][46][47] aryl boronate group, 48,49 carbonsulphur bond 50,51 and several other bonds or groups. [52][53][54] By far people have synthesised a variety of fluorescent probes derived from different fluorophore platforms that specifically detect ClO À in living systems, achieving encouraging advancement in this field.…”

Section: Introductionmentioning

confidence: 99%

Methylthio‐substituted coumarin‐based fluorescent probe for highly specific and fast detection of hypochlorite and bioimaging application

Zhao,

Wang,

Song

et al. 2023

Coloration Technology

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Hypochlorite is a kind of endogenously produced reactive oxygen species (ROS) in the human immune system and plays a crucial role in many pathophysiological processes. In this work a novel fluorescent probe derived from 6‐methylthio coumarin was designed and synthesised for detection of hypochlorite in acetonitrile/phosphate‐buffered saline (MeCN/PBS) (1:1, v/v, pH 7.4) medium. The probe displayed high specificity toward hypochlorite over other ROS analytes, rapid response to hypochlorite within 30 s, and a broad applicable range of pH 3–8. The detection limit was calculated to be 1.48 μM. Application of this probe for in vitro Hecat cell imaging to detect hypochlorite ions was confirmed. A sensing mechanism based on thioether to sulfoxide oxidation by hypochlorite was proposed and demonstrated. The study presented an effective approach for construction of highly efficient hypochlorite chemosensors from hydrophilic methylthio‐substituted coumarins considering their facile access.

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