Highly sensitive detection of copper ions by densely grafting fluorescein inside polyethyleneimine core–silica shell nanoparticles

The Analyst ◽  
2015 ◽  
Vol 140 (24) ◽  
pp. 8186-8193 ◽  
Author(s):  
Yali Qiao ◽  
Xingwang Zheng
Keyword(s):  
Copper Ions ◽  
Silica Shell ◽  
Sensitive Detection ◽  
Fluorescence Sensing ◽  
Shell Nanoparticles ◽  
Sensing Platform ◽  
Highly Sensitive ◽  
Highly Sensitive Detection

Using PEI core–silica shell nanoparticles as a sensing platform, a multi-fluorophore collective fluorescence sensing strategy was developed for Cu2+.

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...

A WS2 nanosheet based sensing platform for highly sensitive detection of T4 polynucleotide kinase and its inhibitors

Nanoscale ◽  
2014 ◽  
Vol 6 (12) ◽  
pp. 6866-6872 ◽  
Author(s):  
Jia Ge ◽  
Li-Juan Tang ◽  
Qiang Xi ◽  
Xi-Ping Li ◽  
Ru-Qin Yu ◽  
...  
Keyword(s):  
Sensitive Detection ◽  
Sensing Platform ◽  
Highly Sensitive ◽  
Polynucleotide Kinase ◽  
Highly Sensitive Detection ◽  
T4 Polynucleotide Kinase

A nanobiosensor was developed based on a WS2 nanosheet for detection of T4 polynucleotide kinase with low interference and superior sensitivity.

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