scholarly journals A Double-Site Chemodosimeter for Selective Fluorescence Detection of a Nerve Agent Mimic

Molecules ◽  
2022 ◽  
Vol 27 (2) ◽  
pp. 489
Author(s):  
Xin Guo ◽  
Chang-Xiang Liu ◽  
Yuan Lu ◽  
Ya-Wen Wang ◽  
Yu Peng

A novel two-site chemodosimeter (SWJT-4) based on fluorescein skeleton to detect diethyl chlorophosphate (DCP) was designed and synthesized. It is a turn-on fluorescent probe for DCP with good selectivity and obvious color change in aqueous solution. Interestingly, the two oxime groups of SWJT-4 as dual response sites initiated different reactions with DCP to form a cyano group and an isoxazole ring, respectively. The corresponding mechanism was confirmed by 1H NMR, MS and DFT calculation. Moreover, SWJT-4 could be used as a fluorescent test paper to detect DCP vapor.

2020 ◽  
Vol 44 (48) ◽  
pp. 21167-21175
Author(s):  
Tingting Xu ◽  
Junjie Huang ◽  
Min Fang ◽  
Mingshuai Sui ◽  
Yujing Zhu ◽  
...  

The lysosome-targeted probe CuNI exhibits highly effective fluorescence detection ability for Cu2+ in aqueous solution and cells. The fluorescent enhancement is due to the Cu2+-catalyzed hydrolysis of CuNI and the AIE effect of the hydrolysate MFNI.


2017 ◽  
Vol 243 ◽  
pp. 678-683 ◽  
Author(s):  
Chenjun Wu ◽  
Jianbo Wang ◽  
Jinjin Shen ◽  
Cheng Bi ◽  
Hongwei Zhou

RSC Advances ◽  
2015 ◽  
Vol 5 (7) ◽  
pp. 4941-4946 ◽  
Author(s):  
Xingjiang Liu ◽  
Wenying Zhang ◽  
Chunxiao Li ◽  
Wan Zhou ◽  
Zhanxian Li ◽  
...  

Based on selective cleavage of naphthalimide-based fluorescent probes by biological thiols, a “turn-on” fluorescent probe toward thiols has been developed.


2013 ◽  
Vol 295-298 ◽  
pp. 475-478 ◽  
Author(s):  
Zhi Xiang Han ◽  
Ming Hui Du ◽  
Guo Xi Liang ◽  
Xiang Yang Wu

Rhodamine B thiohydrazide (RBS) was firstly employed as turn-on fluorescent probe for hypochlorite in aqueous solution and living cells. It exhibits a stable response to hypochlorite from 1.0×10-6to 1.0×10-5M with a detection limit of 3.3×10-7M. The response of this probe to hypochlorite is fast and highly selective compared with other reactive oxygen species (such as.OH,1O2, H2O2) and other common anions (such as X-, ClO2-, ClO4-, NO3-, NO2-, OH-, Ac-, CO32-, SO42-).


2017 ◽  
Vol 41 (4) ◽  
pp. 1653-1658 ◽  
Author(s):  
Yoon Jeong Jang ◽  
Sandip V. Mulay ◽  
Youngsam Kim ◽  
Perman Jorayev ◽  
David G. Churchill

A intramolecular cyclization reaction-based “turn-on” fluorescent probe (CoumNMe2) for selective detection of diethyl chlorophosphate (DCP) over close competitors diethyl cyanophosphonate (DECP), and diethyl methylphosphonate (DEMP) was developed.


2019 ◽  
Vol 43 (33) ◽  
pp. 12907-12915 ◽  
Author(s):  
Fuyou Du ◽  
Qiulian Zeng ◽  
Zhan Lai ◽  
Zhenfang Cheng ◽  
Guihua Ruan

In this work, silicon doped graphene quantum dots (Si-GQDs) were prepared and applied for the sensitive and selective fluorescence detection of triclosan (TCS) in combination with Ru3+ ions.


2020 ◽  
Vol 44 (45) ◽  
pp. 19642-19649
Author(s):  
Lingjie Hou ◽  
Tao Liu ◽  
Yaling Gong ◽  
Jin Li ◽  
Chenhua Deng ◽  
...  

A Schiff base fluorescent probe, namely naphthalic anhydride – (2-pyridine) hydrazone (NAH), has been synthesized and developed for the highly selective and sensitive monitoring of Fe3+ ions in an aqueous solution and living cells.


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