scholarly journals Fluoride-driven ‘turn on’ ESPT in the binding with a novel benzimidazole-based sensor

2015 ◽  
Vol 11 ◽  
pp. 563-567 ◽  
Author(s):  
Kai Liu ◽  
Xiaojun Zhao ◽  
Qingxiang Liu ◽  
Jianzhong Huo ◽  
Bolin Zhu ◽  
...  
Keyword(s):  
Emission Spectrum ◽  
Fluorescence Enhancement ◽  
Anion Recognition ◽  
Blue Shift ◽  
Fluorescence Sensor ◽  
Turn On ◽  
Recognition Property

A novel fluorescence sensor (BIP) bearing NH and OH subunits displayed a highly selective and sensitive recognition property for fluoride over other anions. Fluoride-driven ESPT, poorly used in anion recognition and sensing, was suggested to be responsible for the fluorescence enhancement with a blue shift of 35 nm in the emission spectrum.

A turn-on fluorescence sensor for creatinine based on the quinoline-modified metal organic frameworks

Talanta ◽  
2020 ◽  
Vol 219 ◽  
pp. 121280 ◽  
Author(s):  
Shumei Qu ◽  
Qi Cao ◽  
Jiutong Ma ◽  
Qiong Jia
Keyword(s):  
Metal Organic Frameworks ◽  
Fluorescence Sensor ◽  
Turn On ◽  
Metal Organic

scholarly journals A 7-Hydroxybenzoxazinone-Containing Fluorescence Turn-On Probe for Biothiols and Its Bioimaging Applications

Molecules ◽  
2019 ◽  
Vol 24 (17) ◽  
pp. 3102 ◽  
Author(s):  
Bin Li ◽  
Datong Zhang ◽  
Ruibing An ◽  
Yaling Zhu
Keyword(s):  
Amino Acids ◽  
Detection Limit ◽  
High Resistance ◽  
Hela Cells ◽  
Fluorescence Enhancement ◽  
Stokes Shift ◽  
Potential Utility ◽  
Strong Fluorescence ◽  
Turn On ◽  
Fluorescence Turn On

In this work, a novel 7-hydroxybenzoxazinone-based fluorescent probe (PBD) for the selective sensing of biothiols is reported. Upon treatment with biothiols, PBD shows a strong fluorescence enhancement (up to 70-fold) and a large Stokes shift (155 nm). Meanwhile, this probe exhibits high resistance to interference from other amino acids and competing species. PBD features good linearity ranges with a low detection limit of 14.5 nM for glutathione (GSH), 17.5 nM for cysteine (Cys), and 80.0 nM for homocysteine (Hcy), respectively. Finally, the potential utility of this probe for biothiol sensing in living HeLa cells is demonstrated.

A novel ratiometric and turn-on fluorescent coumarin-based probe for Fe(iii)

2019 ◽  
Vol 43 (30) ◽  
pp. 12032-12041 ◽  
Author(s):  
Tiziana Pivetta ◽  
Sebastiano Masuri ◽  
Maria Grazia Cabiddu ◽  
Claudia Caltagirone ◽  
Anna Pintus ◽  
...  
Keyword(s):  
Fluorescence Enhancement ◽  
Fluorescent Chemosensor ◽  
Turn On

6-Methoxy-3-(pyridin-2-yl)-2H-chromen-2-one exhibited fluorescence enhancement in the presence of Fe(iii). This molecule was a selective fluorescent chemosensor for Fe(iii).

A fluorescent turn-on probe for cyanide anion detection based on an AIE active cobalt(ii) complex

2018 ◽  
Vol 47 (6) ◽  
pp. 2079-2085 ◽  
Author(s):  
Moustafa T. Gabr ◽  
F. Christopher Pigge
Keyword(s):  
Aqueous Solution ◽  
Fluorescence Enhancement ◽  
Anion Detection ◽  
Cyanide Anion ◽  
Turn On

A Co(ii) complex based on an AIE-active tetraarylethylene ligand displays selective fluorescence enhancement in the presence of cyanide anion in aqueous solution.

An exceptionally intense turn-on fluorescence sensor in the far-red region for common milk allergen, β-lactoglobulin

2021 ◽  
Vol 327 ◽  
pp. 128864
Author(s):  
Goutam Chakraborty ◽  
Alok. K. Ray ◽  
Prabhat K. Singh ◽  
Haridas Pal
Keyword(s):  
Fluorescence Sensor ◽  
Turn On ◽  
Β Lactoglobulin
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