Redox-induced target-dependent ratiometric fluorescence sensing strategy and logic gate operation for detection of α-glucosidase activity and its inhibitor

2021 ◽  
Author(s):  
Xucan Yuan ◽  
Yi Sun ◽  
Pengfei Zhao ◽  
Longshan Zhao ◽  
Zhili Xiong
Keyword(s):  
Redox Reaction ◽  
Logic Gate ◽  
Sensitive Detection ◽  
Ratiometric Fluorescence ◽  
Fluorescence Sensing ◽  
Gate Operation ◽  
Glucosidase Activity ◽  
Highly Sensitive ◽  
Highly Sensitive Detection ◽  
Ratiometric Fluorescence Sensing

A target-dependent ratiometric fluorescence sensing strategy was designed and fabricated based on redox reaction for highly sensitive detection of α-glucosidase (α-Glu) activity and its inhibitor. In this study, silicon quantum...

Folded short azapeptide for conformation switching-based fluorescence sensing

2017 ◽  
Vol 53 (98) ◽  
pp. 13137-13140 ◽  
Author(s):  
Yuan Yuan ◽  
Xiao-Sheng Yan ◽  
Xiao-Rui Li ◽  
Jin-Lian Cao ◽  
Zhao Li ◽  
...  
Keyword(s):  
Fluorescent Sensors ◽  
Ratiometric Fluorescence ◽  
Fluorescence Sensing ◽  
Dual Emission ◽  
Highly Sensitive ◽  
Turn Structure ◽  
Ratiometric Fluorescence Sensing

Dipeptide-based amidothiourea (azapeptides) bearing folded β-turn structures were employed to build beacon-like fluorescent sensors signalled by pyrene exciplex or excimer dual emission to allow highly sensitive ratiometric fluorescence sensing of an anion able to bind to the structural moiety placed within the turn structure.

A ratiometric fluorescent BODIPY-based probe for rapid and highly sensitive detection of cysteine in human plasma

The Analyst ◽  
2018 ◽  
Vol 143 (23) ◽  
pp. 5728-5735 ◽  
Author(s):  
Nannan Wang ◽  
Yue Wang ◽  
Jinhua Gao ◽  
Xin Ji ◽  
Jinling He ◽  
...  
Keyword(s):  
Human Plasma ◽  
Sensitive Detection ◽  
Amino Group ◽  
Ratiometric Fluorescence ◽  
Fluorescence Response ◽  
Highly Sensitive ◽  
Highly Sensitive Detection

The probe could respond to Cys/Hcy, exhibiting a ratiometric fluorescence response through intramolecular displacement with the amino group displacing the sulfur function to form amino-substituted BODIPY.

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