Catalytical feature from optical nanoprobes of boron nitride quantum dots in the presence of Cu2+ for the determination of dopamine

The Analyst ◽  
2021 ◽  
Author(s):  
Xiushuang Fan ◽  
Jinpeng Qiu ◽  
Chao Peng ◽  
Jiangtao Ren ◽  
Huanhuan Xing ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Boron Nitride ◽  
Indirect Influence ◽  
Optical Nanoprobes

Monitoring dopamine (DA) concentration is vital for preventing and diagnosing DA related diseases. In contrast with the traditional sensing principle of DA, where direct or indirect influence on the optical...

Determination of nickel(II) via quenching of the fluorescence of boron nitride quantum dots

2017 ◽  
Vol 184 (10) ◽  
pp. 4217-4223 ◽  
Author(s):  
Qiuhong Yao ◽  
Yufeng Feng ◽  
Mingcong Rong ◽  
Shaogui He ◽  
Xi Chen
Keyword(s):  
Quantum Dots ◽  
Boron Nitride ◽  
Determination Of Nickel

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.

Efficient Full-Color Boron Nitride Quantum Dots for Thermostable Flexible Displays

ACS Nano ◽  
2021 ◽  
Author(s):  
Yamei Ding ◽  
Ping He ◽  
Shaohan Li ◽  
Bo Chang ◽  
Shengli Zhang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Boron Nitride ◽  
Flexible Displays ◽  
Full Color

Electrolyzing synthesis of boron-doped graphene quantum dots for fluorescence determination of Fe3+ ions in water samples

Talanta ◽  
2017 ◽  
Vol 164 ◽  
pp. 100-109 ◽  
Author(s):  
Li Chen ◽  
Chuanli Wu ◽  
Pan Du ◽  
Xiaowei Feng ◽  
Ping Wu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Water Samples ◽  
Graphene Quantum Dots ◽  
Boron Doped ◽  
Fluorescence Determination ◽  
Doped Graphene
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