Ultrasensitive detection of glutathione based on a switch-on fluorescent probe of AIE-type red-emitting copper nanoclusters

2019 ◽  
Vol 11 (27) ◽  
pp. 3446-3451 ◽  
Author(s):  
Qianqian Du ◽  
Xue Hu ◽  
Xiaodan Zhang ◽  
Haiyan Cao ◽  
Yuming Huang
Keyword(s):  
Fluorescent Probe ◽  
High Stability ◽  
Stokes Shift ◽  
Fluorescence Assay ◽  
Fluorescence Recovery ◽  
Ultrasensitive Detection ◽  
Copper Nanoclusters ◽  
Large Stokes Shift

AIE-type red-emitting Cu NCs (with a large stokes shift and high stability) are quenched with MnO2nanosheetsviaIFE, while further introduction of GSH leads to fluorescence recovery, and this finding results in a new switch-on FL fluorescence assay for ultrasensitive detection of GSH.

A novel near-infrared fluorescent probe based on isophorone for the bioassay of endogenous cysteine

2021 ◽  
Author(s):  
Hong-Bo Liu ◽  
Hai Xu ◽  
Xin Guo ◽  
Jian Xiao ◽  
Zheng-Hong Cai ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Fluorescent Probe ◽  
Near Infrared ◽  
Stokes Shift ◽  
Rapid Identification ◽  
Large Stokes Shift

A near-infrared (NIR) fluorescent probe with a large Stokes shift (143 nm) for the rapid identification of Cys over Hcy and GSH in aqueous solution was developed.

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