scholarly journals Synthesis of polyurethane-derived nitrogen-doped carbon dots for a high-performance fluorescence bioimaging probe

RSC Advances ◽  
2021 ◽  
Vol 11 (54) ◽  
pp. 34174-34180
Author(s):  
Fang-Jun Cao ◽  
Lu Wang ◽  
Cheng-Li Feng ◽  
Xiao Lin ◽  
Hui Feng
Keyword(s):  
Quantum Dots ◽  
High Performance ◽  
Solvothermal Method ◽  
Carbon Quantum Dots ◽  
Soluble Nitrogen ◽  
Nitrogen Doped ◽  
Fluorescence Bioimaging ◽  
Polyurethane Sponge ◽  
Doped Carbon Dots ◽  
Nitrogen Doped Carbon

A universal and robust strategy using polyurethane sponge as a precursor was developed to synthesize highly-soluble nitrogen-doped carbon quantum dots via a solvothermal method.

Intense multi-state visible absorption and full-color luminescence of nitrogen-doped carbon quantum dots for blue-light-excitable solid-state-lighting

2016 ◽  
Vol 4 (38) ◽  
pp. 9027-9035 ◽  
Author(s):  
Daqin Chen ◽  
Weiwei Wu ◽  
Yongjun Yuan ◽  
Yang Zhou ◽  
Zhongyi Wan ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solid State ◽  
Carbon Quantum Dots ◽  
Solid State Lighting ◽  
Visible Absorption ◽  
Nitrogen Doped ◽  
Full Color ◽  
Potential Applications ◽  
Doped Carbon Dots ◽  
Nitrogen Doped Carbon

Nitrogen-doped carbon dots with multi-state visible absorption and full-color blue/yellow/red emissions are synthesized, and show potential applications in solid-state-lighting.

scholarly journals Nitrogen-doped carbon quantum dots (N-CQDs)/Co3O4 nanocomposite for high performance supercapacitor

2021 ◽  
Vol 33 (1) ◽  
pp. 101252
Author(s):  
Mu. Naushad ◽  
Tansir Ahamad ◽  
Mohd Ubaidullah ◽  
Jahangeer Ahmed ◽  
Ayman A. Ghafar ◽  
...  
Keyword(s):  
Quantum Dots ◽  
High Performance ◽  
Carbon Quantum Dots ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon

scholarly journals Potential Application of Nitrogen-Doped Carbon Quantum Dots Synthesized by a Solvothermal Method for Detecting Silver Ions in Food Packaging

2019 ◽  
Vol 16 (14) ◽  
pp. 2518 ◽  
Author(s):  
Lu ◽  
Su ◽  
Feng ◽  
Jiang ◽  
Hong ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Functional Groups ◽  
Food Packaging ◽  
Detection Method ◽  
Solvothermal Method ◽  
Carbon Quantum Dots ◽  
Average Lifetime ◽  
Nitrogen Doped ◽  
Flame Atomic Absorption ◽  
Nitrogen Doped Carbon

In this paper, nitrogen-doped carbon quantum dots (N-CQDs) were synthesized by a solvothermal method using 1,2,4-triaminobenzene as a carbon precursor. The surface of the synthesized N-CQDs was modified with amino functional groups. The results indicated that N-CQDs had various N-related functional groups and chemical bonds and were amorphous in structure. At the same time, the quantum yield of N-CQDs was 5.11%, and the average lifetime of fluorescence decay was 5.79 ns. The synthesized N-CQDs showed good selectivity for and sensitivity to Ag+. A linear relationship between N-CQDs detection efficiency and Ag+ concentration was observed for concentration ranges of Ag+ corresponding to 0–10 μM and 10–30 μM. In addition, N-CQDs were used for the detection of trace Ag+ in food packaging material. The silver ion content of the sample determined by the N-CQDs detection method was 1.442 mg/L, with a relative error of 6.24% with respect to flame atomic absorption spectrometry, according to which the Ag+ content was 1.352 mg/L. This indicates that the N-CQDs detection method is reliable. Therefore, the N-CQDs prepared in this paper can detect Ag+ rapidly, simply, and sensitively and are expected to be a promising tool for the detection of trace Ag+ in food packaging materials.

scholarly journals Nitrogen-doped carbon quantum dots for fluorescence detection of Cu2+ and electrochemical monitoring of bisphenol A

RSC Advances ◽  
2018 ◽  
Vol 8 (36) ◽  
pp. 20000-20006 ◽  
Author(s):  
Xinran Wu ◽  
Lina Wu ◽  
Xizhong Cao ◽  
Ying Li ◽  
Anran Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Bisphenol A ◽  
Electrochemical Detection ◽  
Fluorescence Detection ◽  
Carbon Dots ◽  
Carbon Quantum Dots ◽  
Nitrogen Doped ◽  
Doped Carbon Dots ◽  
Nitrogen Doped Carbon ◽  
Electrochemical Monitoring

Nitrogen-doped carbon dots were applied in the fluorescence detection of Cu2+ and electrochemical detection of BPA.

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