Time-efficient syntheses of nitrogen and sulfur co-doped graphene quantum dots with tunable luminescence and their sensing applications

RSC Advances ◽  
2016 ◽  
Vol 6 (43) ◽  
pp. 36554-36560 ◽  
Author(s):  
Hongbo Xu ◽  
Shenghai Zhou ◽  
Lili Xiao ◽  
Qunhui Yuan ◽  
Wei Gan
Keyword(s):  
Quantum Dots ◽  
Fluorescence Probe ◽  
Graphene Quantum Dots ◽  
Selective Detection ◽  
Sensing Applications ◽  
Doped Graphene ◽  
Co Doped

N,S co-doped GQDs with fast preparation and tunable fluorescence were developed and employed as fluorescence probe for selective detection of Fe3+.

Facile and scalable preparation of highly luminescent N,S co-doped graphene quantum dots and their application for parallel detection of multiple metal ions

2017 ◽  
Vol 5 (32) ◽  
pp. 6593-6600 ◽  
Author(s):  
Chao Shen ◽  
Shuyan Ge ◽  
Youyou Pang ◽  
Fengna Xi ◽  
Jiyang Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Metal Ions ◽  
Environmental Samples ◽  
Graphene Quantum Dots ◽  
Fluorescence Probes ◽  
Selective Detection ◽  
Parallel Detection ◽  
Biological And Environmental Samples ◽  
Doped Graphene ◽  
Co Doped

New and bright N,S co-doped GQDs are synthesized and serve as fluorescence probes for parallel and selective detection of Fe3+, Cu2+ and Ag+ ions in biological and environmental samples.

Mn, B, N Co-Doped Graphene Quantum Dots for Fluorescence Sensing and Biological Imaging

2021 ◽  
Author(s):  
Bingyang Li ◽  
Xiao Xiao ◽  
Menglei Hu ◽  
Yanxin Wang ◽  
Yiheng Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Graphene Quantum Dots ◽  
Biological Imaging ◽  
Fluorescence Sensing ◽  
Doped Graphene ◽  
Co Doped

scholarly journals Electrochemical detection of white spot syndrome virus with a silicone rubber disposable electrode composed of graphene quantum dots and gold nanoparticle-embedded polyaniline nanowires

2020 ◽  
Vol 18 (1) ◽  
Author(s):  
Kenshin Takemura ◽  
Jun Satoh ◽  
Jirayu Boonyakida ◽  
Sungjo Park ◽  
Ankan Dutta Chowdhury ◽  
...  
Keyword(s):  
Quantum Dots ◽  
White Spot Syndrome Virus ◽  
Graphene Quantum Dots ◽  
High Sensitivity ◽  
White Spot ◽  
Sensing Matrix ◽  
Disposable Electrode ◽  
Sensing Applications ◽  
Doped Graphene ◽  
White Spot Syndrome

Abstract Background With the enormous increment of globalization and global warming, it is expected that the number of newly evolved infectious diseases will continue to increase. To prevent damage due to these infections, the development of a diagnostic method for detecting a virus with high sensitivity in a short time is highly desired. In this study, we have developed a disposable electrode with high-sensitivity and accuracy to evaluate its performances for several target viruses. Results Conductive silicon rubber (CSR) was used to fabricate a disposable sensing matrix composed of nitrogen and sulfur-co-doped graphene quantum dots (N,S-GQDs) and a gold-polyaniline nanocomposite (AuNP-PAni). A specific anti-white spot syndrome virus (WSSV) antibody was conjugated to the surface of this nanocomposite, which was successfully applied for the detection of WSSV over a wide linear range of concentration from 1.45 × 102 to 1.45 × 105 DNA copies/ml, with a detection limit as low as 48.4 DNA copies/ml. Conclusion The engineered sensor electrode can retain the detection activity up to 5 weeks, to confirm its long-term stability, required for disposable sensing applications. This is the first demonstration of the detection of WSSV by a nanofabricated sensing electrode with high sensitivity, selectivity, and stability, providing as a potential diagnostic tool to monitor WSSV in the aquaculture industry.

scholarly journals The synthesis of nitrogen and sulfur co-doped graphene quantum dots for fluorescence detection of cobalt(ii) ions in water

2020 ◽  
Vol 4 (2) ◽  
pp. 507-516 ◽  
Author(s):  
Wissuta Boonta ◽  
Chanon Talodthaisong ◽  
Suchinda Sattayaporn ◽  
Chiraporn Chaicham ◽  
Anusak Chaicham ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Fluorescence Detection ◽  
Graphene Quantum Dots ◽  
Fluorescence Sensor ◽  
Highly Sensitive ◽  
Doped Graphene ◽  
Co Doped

A highly sensitive and selective fluorescence sensor using N,S-GQDs for the detection of Co2+ within 3 minutes.

Highly selective photocatalytic production of H2O2 on sulfur and nitrogen co-doped graphene quantum dots tuned TiO2

2018 ◽  
Vol 239 ◽  
pp. 475-484 ◽  
Author(s):  
Longhui Zheng ◽  
Hanrui Su ◽  
Jingzhen Zhang ◽  
Laxman S. Walekar ◽  
Hamed Vafaei Molamahmood ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Graphene Quantum Dots ◽  
Doped Graphene ◽  
Co Doped
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