Phenylsulfonic acid functionalized carbon quantum dots based biosensor for acetylcholinesterase activity monitoring and inhibitor screening

RSC Advances ◽  
2016 ◽  
Vol 6 (107) ◽  
pp. 105454-105460 ◽  
Author(s):  
Fengqi Zhou ◽  
Hui Feng ◽  
Yafen Fang ◽  
Qian Sun ◽  
Zhaosheng Qian
Keyword(s):  
Quantum Dots ◽  
Ache Activity ◽  
Acetylcholinesterase Activity ◽  
Carbon Quantum Dots ◽  
Activity Monitoring ◽  
Inhibitor Screening

Phenylsulfonic acid functionalized carbon quantum dots (PSA-CQDs) were prepared and used to construct a convenient and reliable fluorometric biosensor for acetylcholinesterase (AChE) activity and inhibitor screening.

A fluorometric assay for acetylcholinesterase activity and inhibitor screening with carbon quantum dots

2016 ◽  
Vol 222 ◽  
pp. 879-886 ◽  
Author(s):  
Zhaosheng Qian ◽  
Lujing Chai ◽  
Cong Tang ◽  
Yuanyuan Huang ◽  
Jianrong Chen ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Acetylcholinesterase Activity ◽  
Carbon Quantum Dots ◽  
Fluorometric Assay ◽  
Inhibitor Screening

One-step synthesis of levodopa functionalized carbon quantum dots for selective detection of tyrosinase and inhibitor screening

2020 ◽  
Vol 159 ◽  
pp. 105456
Author(s):  
Saipeng Huang ◽  
Wenshuai Li ◽  
Xin Zhou ◽  
Mengyao Xie ◽  
Qing Luo ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Carbon Quantum Dots ◽  
Selective Detection ◽  
Inhibitor Screening ◽  
One Step

Reversible Fluorescent Nanoswitch Based on Carbon Quantum Dots Nanoassembly for Real-Time Acid Phosphatase Activity Monitoring

2015 ◽  
Vol 87 (14) ◽  
pp. 7332-7339 ◽  
Author(s):  
Zhaosheng Qian ◽  
Lujing Chai ◽  
Qian Zhou ◽  
Yuanyuan Huang ◽  
Cong Tang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Acid Phosphatase ◽  
Real Time ◽  
Phosphatase Activity ◽  
Acid Phosphatase Activity ◽  
Carbon Quantum Dots ◽  
Activity Monitoring

Light-accelerating oxidase-mimicking activity of black phosphorus quantum dots for colorimetric detection of acetylcholinesterase activity and inhibitor screening

The Analyst ◽  
2020 ◽  
Vol 145 (24) ◽  
pp. 8022-8029
Author(s):  
Lei Ren ◽  
Hongdan Li ◽  
Mei Liu ◽  
Jianxiu Du
Keyword(s):  
Quantum Dots ◽  
Colorimetric Assay ◽  
Colorimetric Detection ◽  
Acetylcholinesterase Activity ◽  
Black Phosphorus ◽  
Light Irradiation ◽  
Inhibitor Screening ◽  
Black Phosphorus Quantum Dots

The exposure of 365 nm light irradiation significantly accelerates the oxidase-mimicking activity of black phosphorus quantum dots, allowing sensitive colorimetric assay of acetylcholinesterase activity and evaluation of its inhibitor screening.

A reversible fluorescence nanoswitch based on dynamic covalent B–O bonds using functional carbon quantum dots and its application for α-glucosidase activity monitoring

2017 ◽  
Vol 5 (11) ◽  
pp. 2826-2832 ◽  
Author(s):  
Hang Ao ◽  
Hui Feng ◽  
Xiaolu Huang ◽  
Meizhi Zhao ◽  
Zhaosheng Qian
Keyword(s):  
Quantum Dots ◽  
Carbon Quantum Dots ◽  
Activity Monitoring ◽  
External Stimulus ◽  
Glucosidase Activity

A reversible fluorescence nanoswitch based on dynamic covalent B–O bonds that responds to the external stimulus of pH was developed, and further utilized to monitor α-glucosidase activity.

scholarly journals A ratiometric fluorescence assay for acetylcholinesterase activity and inhibitor screening based on supramolecular assembly induced monomer–excimer emission transition of a perylene probe

RSC Advances ◽  
2018 ◽  
Vol 8 (23) ◽  
pp. 12785-12790 ◽  
Author(s):  
Chunhua He ◽  
Huipeng Zhou ◽  
Ejaz Hussain ◽  
Yunyi Zhang ◽  
Niu Niu ◽  
...  
Keyword(s):  
Lauric Acid ◽  
Ache Activity ◽  
Fluorescence Probe ◽  
Supramolecular Assembly ◽  
Acetylcholinesterase Activity ◽  
Supramolecular Assemblies ◽  
Ratiometric Fluorescence ◽  
Excimer Emission ◽  
Inhibitor Screening ◽  
Emission Transition

The PDI-DHA can aggregate to form supramolecular assemblies when mixed with lauroylcholine and lauric acid, and is employed as a ratiometric fluorescence probe for the detection of AChE activity.

LUMINESCENT DETERMINATION OF SUGAR IN NATURAL HONEY

2020 ◽  
Vol 0 (4) ◽  
pp. 29-32
Author(s):  
B.M. GAREEV ◽  
◽  
A.M. ABDRAKHMANOV ◽  
G.L. SHARIPOV ◽  
◽  
...  
Keyword(s):  
Quantum Dots ◽  
Laboratory Test ◽  
Aqueous Solutions ◽  
Analytical Method ◽  
Sugar Content ◽  
Carbon Quantum Dots ◽  
Photoluminescence Intensity ◽  
Sucrose Content ◽  
Natural Honey

The photoluminescence of carbon quantum dots synthesized from natural honey and mixtures of honey and sugar has been studied. An increase in the sugar content leads to a decrease in the photoluminescence intensity without changing the shape of the luminescence spectrum of these quantum dots aqueous solutions, which is associated with a decrease in the yield of their synthesis in the sugar presence. The discovered effect can be used to detect sugar in honey. When examining five different market samples of flower honey using this method, two of them showed a significant decrease in the photoluminescence intensity. A laboratory test for compliance with GOST 19792-2017 Standard requirements established an excess of the sucrose content in these samples. Luminescent determination of sugar in honey does not require complicated equipment and can be used to develop a new analytical method for determining the sugar content in counterfeit natural honey.

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