Silver-Mediated Perylene–3, 4, 9, 10–Tetracarboxylate Tetrapotassium Salt Aggregation for Highly Sensitive Detection of Iodide in Water

2015 ◽  
Vol 1119 ◽  
pp. 833-837
Author(s):  
Jia Jun Ma ◽  
Lei Cheng Yin ◽  
Gang Zou ◽  
Qi Jin Zhang

A simple fluorescent iodide ion sensor was fabricated. Ag+ was found to specifically induce the aggregation of perylene–3, 4, 9, 10–tetracarboxylate tetrapotassium salt (PTK) in water, simultaneously, fluorescence of PTK was quenched. The resultant PTK–Ag+ aggregates showed a "turn–on" fluorescence response for halide ion, especially I-, and excellent selectivity toward possible interfering anions, contain sulfide.

The Analyst ◽  
2014 ◽  
Vol 139 (24) ◽  
pp. 6502-6510 ◽  
Author(s):  
Sudesna Chakravarty ◽  
Dilip Saikia ◽  
Priyanka Sharma ◽  
Nirab Chandra Adhikary ◽  
Debajit Thakur ◽  
...  

A ‘turn on–off–on’ sensor for highly sensitive detection of ds DNA with an excellent ‘limit of detection’ is reported.


2016 ◽  
Vol 8 (11) ◽  
pp. 2420-2426 ◽  
Author(s):  
Youming Shen ◽  
Xiangyang Zhang ◽  
Youyu Zhang ◽  
Chunxiang Zhang ◽  
Junling Jin ◽  
...  

A novel and simple turn-on fluorescent probe bearing NBD and benzaldehyde fragments for the rapid optical sensing of biothiols has been designed and synthesized.


RSC Advances ◽  
2016 ◽  
Vol 6 (35) ◽  
pp. 29727-29733 ◽  
Author(s):  
Fubo Gu ◽  
Huanhuan Chen ◽  
Dongmei Han ◽  
Zhihua Wang

Au@ZnO yolk–shell nanostructures were synthesized by using Au@MOF-5 as a precursor, which exhibited a high response and excellent selectivity to acetone.


2020 ◽  
Vol 44 (48) ◽  
pp. 21038-21048
Author(s):  
Zhuang-Zhuang Chen ◽  
Ruo-Yu Li ◽  
Wen-Ze Zhang ◽  
Yang Zhang ◽  
Wen-Kui Dong

A new, simple, and easy-to-manufacture highly selective and sensitive dual-mode sensor A1 with the aggregation-induced emission properties is used for CN− colorimetric and fluorescence detection.


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