Facile synthesis of S, N co-doped carbon dots and investigation of their photoluminescence properties

2015 ◽  
Vol 17 (31) ◽  
pp. 20154-20159 ◽  
Author(s):  
Yue Zhang ◽  
Junhui He
Keyword(s):  
Carbon Dots ◽  
Photoluminescence Properties ◽  
Facile Synthesis ◽  
Photoluminescence Mechanism ◽  
Doped Carbon Dots ◽  
Co Doped

Carbon dots with stable down and up conversion fluorescence were synthesized and a unique photoluminescence mechanism is proposed.

Facile synthesis of N,B-co-doped carbon dots with the gram-scale yield for detection of iron (III) and E. coli

2020 ◽  
Vol 31 (39) ◽  
pp. 395702
Author(s):  
Lixia Zhang ◽  
Zishu Zhang ◽  
Zhiwen Gao ◽  
Yan Xie ◽  
Shuang Shu ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Facile Synthesis ◽  
E Coli ◽  
Doped Carbon Dots ◽  
Co Doped

Facile synthesis of nitrogen and sulfur co-doped carbon dots and application for Fe(III) ions detection and cell imaging

2016 ◽  
Vol 223 ◽  
pp. 689-696 ◽  
Author(s):  
Yanfen Chen ◽  
Yuanya Wu ◽  
Bo Weng ◽  
Bin Wang ◽  
Changming Li
Keyword(s):  
Carbon Dots ◽  
Cell Imaging ◽  
Facile Synthesis ◽  
Doped Carbon Dots ◽  
Co Doped

A facile synthesis of high-efficient N,S co-doped carbon dots for temperature sensing application

2020 ◽  
Vol 173 ◽  
pp. 107952 ◽  
Author(s):  
Ziying Guo ◽  
Jiabao Luo ◽  
Zhenpeng Zhu ◽  
Zishan Sun ◽  
Xinguo Zhang ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Temperature Sensing ◽  
Facile Synthesis ◽  
High Efficient ◽  
Sensing Application ◽  
Doped Carbon Dots ◽  
Co Doped

Facile synthesis of biomass waste-derived fluorescent N, S, P co-doped carbon dots for detection of Fe3+ ions in solutions and living cells

2021 ◽  
Author(s):  
Weixia Wang ◽  
Jie Chen ◽  
Dake Wang ◽  
yanmei shen ◽  
Like Yang ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Chemical Properties ◽  
Living Cells ◽  
Facile Synthesis ◽  
Biomass Waste ◽  
Doped Carbon Dots ◽  
Fluorescent Carbon Dots ◽  
Co Doped ◽  
And Chemical Properties ◽  
Fluorescent Carbon

Fluorescent carbon dots derived from natural biomass have received widespread attention in recent years due to their superior optical and chemical properties. In this work, we proposed a method to...

Facile synthesis of nitrogen and sulfur co-doped carbon dots for multiple sensing capacities: alkaline fluorescence enhancement effect, temperature sensing, and selective detection of Fe3+ ions

2018 ◽  
Vol 42 (15) ◽  
pp. 13147-13156 ◽  
Author(s):  
Guannan Liu ◽  
Shan Li ◽  
Ming Cheng ◽  
Lianjing Zhao ◽  
Bo Zhang ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Fluorescence Enhancement ◽  
Enhancement Effect ◽  
Selective Detection ◽  
Facile Synthesis ◽  
Facile Hydrothermal Method ◽  
One Pot ◽  
Multiple Sensing ◽  
Doped Carbon Dots ◽  
Co Doped

In this work, we prepared nitrogen and sulfur co-doped carbon dots (C-dots) via a one-pot facile hydrothermal method using methionine and ethylenediamine as the precursors.

Facile synthesis of biocompatible N, S-doped carbon dots for cell imaging and ion detecting

RSC Advances ◽  
2015 ◽  
Vol 5 (21) ◽  
pp. 16368-16375 ◽  
Author(s):  
Yupeng Sun ◽  
Chen Shen ◽  
Jing Wang ◽  
Yun Lu
Keyword(s):  
Carbon Dots ◽  
Cell Imaging ◽  
Facile Synthesis ◽  
Green Method ◽  
Heparin Sodium ◽  
Doped Carbon Dots ◽  
Co Doped

A facile, simple, effective and green method has been developed to synthesize nitrogen and sulfur co-doped carbon dots (N, S-CDs) from heparin sodium.

Nitrogen and Sulfur Co-doped Fluorescent Carbon Dots for the Detection of Morin and Cell Imaging

2018 ◽  
Vol 15 (1) ◽  
pp. 47-55
Author(s):  
Xuebing Li ◽  
Haifen Yang ◽  
Ning Wang ◽  
Tijian Sun ◽  
Wei Bian ◽  
...  
Keyword(s):  
Microwave Heating ◽  
Fluorescent Probe ◽  
Fluorescence Intensity ◽  
Carbon Dots ◽  
Cell Imaging ◽  
Water Soluble ◽  
Heating Process ◽  
X Ray ◽  
Doped Carbon Dots ◽  
Co Doped

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.

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