Synthesis, mechanistic investigation, and application of photoluminescent sulfur and nitrogen co-doped carbon dots

2015 ◽  
Vol 3 (38) ◽  
pp. 9885-9893 ◽  
Author(s):  
Quan Xu ◽  
Yao Liu ◽  
Chun Gao ◽  
Jianfei Wei ◽  
Hongjun Zhou ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Carbon Dots ◽  
Superior Performance ◽  
Photoluminescence Quantum Yield ◽  
Economical Design ◽  
Mechanistic Investigation ◽  
Doped Carbon Dots ◽  
Co Doped

The unique economical design of sulfur and nitrogen co-doped carbon dots with high photoluminescence quantum yield and superior performance for environmental Hg2+detection.

Boron Doped Carbon Dots with Unusually High Photoluminescence Quantum Yield for Ratiometric Intracellular pH Sensing

ChemPhysChem ◽  
2019 ◽  
Vol 20 (8) ◽  
pp. 1018-1027 ◽  
Author(s):  
Ayan Pal ◽  
Kafeel Ahmad ◽  
Deepanjalee Dutta ◽  
Arun Chattopadhyay
Keyword(s):  
Quantum Yield ◽  
Intracellular Ph ◽  
Carbon Dots ◽  
Ph Sensing ◽  
Boron Doped ◽  
Photoluminescence Quantum Yield ◽  
Doped Carbon Dots

Self-formed C-dot-based 2D polysiloxane with high photoluminescence quantum yield and stability

Nanoscale ◽  
2020 ◽  
Vol 12 (19) ◽  
pp. 10771-10780
Author(s):  
Guangqi Hu ◽  
Xiaokai Xu ◽  
Bingfu Lei ◽  
Jianle Zhuang ◽  
Xuejie Zhang ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Carbon Dots ◽  
Fluorescence Emission ◽  
Quantum Yields ◽  
Dual Fluorescence ◽  
Photoluminescence Quantum Yield ◽  
Si Doped ◽  
Doped Carbon Dots

A novel 2D polysiloxane embedded with Si-doped-carbon-dots was synthesized, which shows dual-fluorescence emission, and high photoluminescence quantum yields and stability.

scholarly journals N,S-co-doped carbon dots for rapid acid test paper and bioimaging

RSC Advances ◽  
2020 ◽  
Vol 10 (68) ◽  
pp. 41332-41335
Author(s):  
Juan Hou ◽  
Jing Qin ◽  
Hongyu Pang ◽  
Xu Gao ◽  
Tiedong Sun ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Qualitative Analysis ◽  
Hydrothermal Method ◽  
Carbon Dots ◽  
Ph Sensor ◽  
Test Paper ◽  
One Pot ◽  
Doped Carbon Dots ◽  
Acid Test ◽  
Co Doped

Fluorescent N,S-CDs with quantum yield of 37.8% were prepared via one-pot hydrothermal method for direct qualitative analysis in pH sensor and intracellular bioimaging.

scholarly journals Ultra-highly fluorescent N doped carbon dots-CdTe QDs nanohybrids with excitation-independent emission in the blue-violet region

RSC Advances ◽  
2018 ◽  
Vol 8 (62) ◽  
pp. 35700-35705 ◽  
Author(s):  
Yuan Jiang ◽  
Liang Zheng ◽  
Hui Zheng ◽  
Feimei Wu ◽  
Lihuan Shao ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Carbon Dots ◽  
Photoluminescence Quantum Yield ◽  
Cdte Qds ◽  
Doped Carbon Dots

The photoluminescence quantum yield of N-doped carbon dots was brought up to 84% by hybridizing with CdTe QDs.

Synthesis of a carbon-dot-based photoluminescent probe for selective and ultrasensitive detection of Hg2+ in water and living cells

The Analyst ◽  
2015 ◽  
Vol 140 (4) ◽  
pp. 1221-1228 ◽  
Author(s):  
Sasmita Mohapatra ◽  
Swagatika Sahu ◽  
Niharika Sinha ◽  
Sujit K. Bhutia
Keyword(s):  
Hydrothermal Synthesis ◽  
Quantum Yield ◽  
Carbon Dots ◽  
Living Cells ◽  
Ultrasensitive Detection ◽  
Carbon Dot ◽  
Doped Carbon Dots ◽  
Co Doped

Nitrogen and sulphur co-doped carbon dots with high PL quantum yield and photostability have been synthesized by a simple hydrothermal synthesis and successfully used for bioimaging of Hg2+ in living cells.

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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