A novel “off-on” fluorescence nanosensor for sensitive determination of sulfide ions based on carbon quantum dots and gold nanoparticles: Central composite design optimization

2019 ◽  
Vol 145 ◽  
pp. 996-1002 ◽  
Author(s):  
N. Shahbazi ◽  
R. Zare-Dorabei
Keyword(s):  
Quantum Dots ◽  
Gold Nanoparticles ◽  
Central Composite Design ◽  
Design Optimization ◽  
Carbon Quantum Dots ◽  
Sensitive Determination ◽  
Sulfide Ions ◽  
Central Composite

Highly selective naked eye detection of vitamin B1 in the presence of other vitamins using graphene quantum dots capped gold nanoparticles

2019 ◽  
Vol 43 (5) ◽  
pp. 2111-2117 ◽  
Author(s):  
B. Sinduja ◽  
S. Abraham John
Keyword(s):  
Quantum Dots ◽  
Gold Nanoparticles ◽  
Graphene Quantum Dots ◽  
Vitamin B1 ◽  
Eye Detection ◽  
Naked Eye ◽  
Sensitive Determination ◽  
Naked Eye Detection

The application of Au-GQDs towards the sensitive determination of thiamine was demonstrated.

A sandwich-type ECL immunosensor for sensitive determination of CEA content based on red emission carbon quantum dots as luminophores

2021 ◽  
Author(s):  
Yuefang Hu ◽  
Yuxin Chen ◽  
Quan Tang ◽  
Hanfu Liu
Keyword(s):  
Quantum Dots ◽  
Microwave Synthesis ◽  
Synthesis Method ◽  
Carbon Quantum Dots ◽  
Single Step ◽  
Red Emission ◽  
Sandwich Type ◽  
Sensitive Determination

A sandwich-type electrochemiluminescence (ECL) immunosensor was constructed using red-emitting carbon quantum dots (RCQDs) as luminophores. The RCQDs were prepared in a single step by the simple green microwave synthesis method...

scholarly journals Correction: A sandwich-type ECL immunosensor for the sensitive determination of CEA content based on red emission carbon quantum dots as luminophores

2021 ◽  
Author(s):  
Yuefang Hu ◽  
Yuxin Chen ◽  
Quan Tang ◽  
Hanfu Liu
Keyword(s):  
Quantum Dots ◽  
Carbon Quantum Dots ◽  
Red Emission ◽  
Sandwich Type ◽  
Sensitive Determination

Correction for ‘A sandwich-type ECL immunosensor for the sensitive determination of CEA content based on red emission carbon quantum dots as luminophores’ by Yuefang Hu et al., New J. Chem., 2021, DOI: 10.1039/d1nj01002f.

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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