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.

Amygdalin-Functionalized Carbon Quantum Dots for Probing β-Glucosidase Activity for Cancer Diagnosis and Therapeutics

2019 ◽  
Vol 5 (6) ◽  
pp. 3089-3099 ◽  
Author(s):  
Gopi Kalaiyarasan ◽  
Murugan Veerapandian ◽  
Gnanasekaran JebaMercy ◽  
Krishnaswamy Balamurugan ◽  
James Joseph
Keyword(s):  
Quantum Dots ◽  
Cancer Diagnosis ◽  
Carbon Quantum Dots ◽  
Glucosidase Activity

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

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.

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.

Enhanced reduction of p-nitrophenol by zerovalent iron modified with carbon quantum dots

2021 ◽  
Vol 285 ◽  
pp. 119829
Author(s):  
Peng Fan ◽  
Xuanjun Zhang ◽  
Huanhuan Deng ◽  
Xiaohong Guan
Keyword(s):  
Quantum Dots ◽  
Carbon Quantum Dots ◽  
Zerovalent Iron
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