Synthesis of Luminescent N-Doped Carbon Dots by Hydrothermal Treatment

2017 ◽  
Vol 255 (1) ◽  
pp. 1700222 ◽  
Author(s):  
Alexandra E. Tomskaya ◽  
Marfa N. Egorova ◽  
Albert N. Kapitonov ◽  
Danil V. Nikolaev ◽  
Vasiliy I. Popov ◽  
...  
The Analyst ◽  
2020 ◽  
Vol 145 (16) ◽  
pp. 5450-5457 ◽  
Author(s):  
Lin Li ◽  
Lihong Shi ◽  
Jing Jia ◽  
Dan Chang ◽  
Chuan Dong ◽  
...  

The bright blue fluorescent N-doped carbon dots (N-CDs) was successfully fabricated by one-step hydrothermal treatment of astragalus and was exploited for cellular imaging and patterning.


RSC Advances ◽  
2015 ◽  
Vol 5 (115) ◽  
pp. 95223-95229 ◽  
Author(s):  
Xiaoqing Niu ◽  
Guosheng Liu ◽  
Luyao Li ◽  
Zheng Fu ◽  
Hang Xu ◽  
...  

A green, simple and low-cost approach was present to obtain N-doped C-dots using vegetables as the sole carbon source through facile one-pot hydrothermal treatment. The C-dots can serve as a suitable sensing platform for detection of Cu2+.


RSC Advances ◽  
2016 ◽  
Vol 6 (89) ◽  
pp. 86436-86442 ◽  
Author(s):  
Chunfeng Wang ◽  
Dong Sun ◽  
Yujuan Chen ◽  
Kelei Zhuo

Sulfur- and nitrogen-co-doped carbon dots were synthesized by the one step hydrothermal treatment of pyritinol hydrochloride in the presence of graphene oxide, and could be used as an effective fluorescent probe for the detection of Hg2+.


RSC Advances ◽  
2019 ◽  
Vol 9 (70) ◽  
pp. 41361-41367 ◽  
Author(s):  
Lihong Shi ◽  
Dan Chang ◽  
Guomei Zhang ◽  
Caihong Zhang ◽  
Yan Zhang ◽  
...  

Green-fluorescent N-doped carbon dots (N-CDs) have been successfully fabricated using hydrothermal treatment of tyrosine and urea.


Author(s):  
Khalilalrahman Dehvari ◽  
Sheng-Hui Chiu ◽  
Jin-Sheng Lin ◽  
Wubshet Mekonnen Girm ◽  
Yong-Chien Ling ◽  
...  

2018 ◽  
Vol 15 (1) ◽  
pp. 47-55
Author(s):  
Xuebing Li ◽  
Haifen Yang ◽  
Ning Wang ◽  
Tijian Sun ◽  
Wei Bian ◽  
...  

Background: Morin has many pharmacological functions including antioxidant, anticancer, anti-inflammatory, and antibacterial effects. It is commonly used in the treatment of antiviral infection, gastropathy, coronary heart disease and hepatitis B in clinic. However, researches have shown that morin is likely to show prooxidative effects on the cells when the amount of treatment is at high dose, leading to the decrease of intracellular ATP levels and the increase of necrosis process. Therefore, it is necessary to determine the concentration of morin in biologic samples. Method: Novel water-soluble and green nitrogen and sulfur co-doped carbon dots (NSCDs) were prepared by a microwave heating process with citric acid and L-cysteine. The fluorescence spectra were collected at an excitation wavelength of 350 nm when solutions of NSCDs were mixed with various concentrations of morin. Results: The as-prepared NSCDs were characterized by transmission electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy. The fluorescence intensity of NSCDs decreased significantly with the increase of morin concentration. The fluorescence intensity of NSCDs displayed a linear response to morin in the concentration 0.10-30 μM with a low detection limit of 56 nM. The proposed fluorescent probe was applied to analysis of morin in human body fluids with recoveries of 98.0-102%. Conclusion: NSCDs were prepared by a microwave heating process. The present analytical method is sensitive to morin. The quenching process between NSCDs and morin is attributed to the static quenching. In addition, the cellular toxicity on HeLa cells indicated that the as-prepared NSCDs fluorescent probe does not show obvious cytotoxicity in cell imaging. Our proposed method possibly opens up a rapid and nontoxic way for preparing heteroatom doped carbon dots with a broad application prospect.


2019 ◽  
Vol 411 (8) ◽  
pp. 1647-1657 ◽  
Author(s):  
Pengli Zuo ◽  
Jianhua Liu ◽  
Hongna Guo ◽  
Chenghong Wang ◽  
Hongqian Liu ◽  
...  

Author(s):  
Quoc Hue Pho ◽  
Marc Escriba-Gelonch ◽  
Dusan Losic ◽  
Evgeny V. Rebrov ◽  
Nam Nghiep Tran ◽  
...  

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