Solvent-controlled and solvent-dependent strategies for the synthesis of multicolor carbon dots for pH sensing and cell imaging

2019 ◽  
Vol 7 (31) ◽  
pp. 9709-9718 ◽  
Author(s):  
Jianliang Bai ◽  
Yusha Ma ◽  
Guojun Yuan ◽  
Xu Chen ◽  
Jing Mei ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Cell Imaging ◽  
Ph Sensing ◽  
Ph Dependent

Solvent-controlled, pH-dependent and solvent-dependent strategies are proposed to obtain multicolor carbon dots using the same precursor.

scholarly journals Red/orange dual-emissive carbon dots for pH sensing and cell imaging

Nano Research ◽  
2019 ◽  
Vol 12 (4) ◽  
pp. 815-821 ◽  
Author(s):  
Miaoran Zhang ◽  
Rigu Su ◽  
Jian Zhong ◽  
Ling Fei ◽  
Wei Cai ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Cell Imaging ◽  
Ph Sensing

Green preparation of carbon dots for intracellular pH sensing and multicolor live cell imaging

2016 ◽  
Vol 4 (44) ◽  
pp. 7130-7137 ◽  
Author(s):  
Wen-Jing Wang ◽  
Jun-Mei Xia ◽  
Ji Feng ◽  
Meng-Qi He ◽  
Ming-Li Chen ◽  
...  
Keyword(s):  
Intracellular Ph ◽  
Carbon Dots ◽  
Live Cell Imaging ◽  
Cell Imaging ◽  
Emission Feature ◽  
Ph Sensing ◽  
Nitrogen Doped ◽  
Multicolor Imaging ◽  
Doped Carbon Dots ◽  
Nitrogen Doped Carbon

Nitrogen-doped carbon dots exhibit a distinct pH-sensitive/excitation-dependent photoluminescence emission feature within pH 4.0–8.0, facilitating intracellular pH sensing and multicolor imaging of live HeLa cells.

Hg2+ detection, pH sensing and cell imaging based on bright blue-fluorescent N-doped carbon dots

The Analyst ◽  
2020 ◽  
Vol 145 (24) ◽  
pp. 8030-8037
Author(s):  
Dan Chang ◽  
Lin Li ◽  
Lihong Shi ◽  
Yongxing Yang
Keyword(s):  
Carbon Dots ◽  
Cell Imaging ◽  
Ph Sensing ◽  
Nitrogen Doped ◽  
Sensing Platform ◽  
Sensitive Determination ◽  
Doped Carbon Dots ◽  
Nitrogen Doped Carbon ◽  
Bright Blue

A multifunctional sensing platform based on bright blue-fluorescent nitrogen-doped carbon dots (N-CDs) has been ingeniously designed for the sensitive determination of Hg2+ and pH.

scholarly journals A facile and green approach to prepare carbon dots with pH-dependent fluorescence for patterning and bioimaging

RSC Advances ◽  
2018 ◽  
Vol 8 (66) ◽  
pp. 38091-38099 ◽  
Author(s):  
Xin Guo ◽  
Yufu Zhu ◽  
Lei Zhou ◽  
Linna Zhang ◽  
Yucai You ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Fruit Juices ◽  
Ph Sensing ◽  
Green Approach ◽  
Ph Dependent

Carbon dots prepared with the adoption of ubiquitous natural fruit juices as precursors have good applications in pH sensing, patterning and bioimaging.

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.

Fluorescent carbon dots from milk by microwave cooking

RSC Advances ◽  
2016 ◽  
Vol 6 (47) ◽  
pp. 41516-41521 ◽  
Author(s):  
Dan Wang ◽  
Lin Zhu ◽  
Christopher Mccleese ◽  
Clemens Burda ◽  
Jian-Feng Chen ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Cell Imaging ◽  
Two Photon ◽  
Microwave Cooking ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon

Fluorescent carbon dots were synthesized from milk by microwave cooking and used for two-photon excitedin vitrocell imaging.

Facile synthesis of orange fluorescence carbon dots with excitation independent emission for pH sensing and cellular imaging

2018 ◽  
Vol 1042 ◽  
pp. 125-132 ◽  
Author(s):  
Yuan Jiao ◽  
Xiaojuan Gong ◽  
Hui Han ◽  
Yifang Gao ◽  
Wenjing Lu ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Cellular Imaging ◽  
Ph Sensing ◽  
Facile Synthesis ◽  
Orange Fluorescence
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