Optical properties of nitrogen and sulfur co-doped carbon dots and their applicability as fluorescent probes for living cell imaging

2019 ◽  
Vol 494 ◽  
pp. 377-383 ◽  
Author(s):  
Ping Ni ◽  
Qingyan Li ◽  
Cuifang Xu ◽  
Haoqiang Lai ◽  
Yan Bai ◽  
...  
Keyword(s):  
Optical Properties ◽  
Fluorescent Probes ◽  
Carbon Dots ◽  
Living Cell ◽  
Cell Imaging ◽  
Living Cell Imaging ◽  
Doped Carbon Dots ◽  
Co Doped

Nitrogen and sulfur co-doped carbon dots with strong blue luminescence

Nanoscale ◽  
2014 ◽  
Vol 6 (22) ◽  
pp. 13817-13823 ◽  
Author(s):  
Hui Ding ◽  
Ji-Shi Wei ◽  
Huan-Ming Xiong
Keyword(s):  
Optical Properties ◽  
Carbon Dots ◽  
Cell Imaging ◽  
Blue Luminescence ◽  
Co Doping ◽  
Doped Carbon Dots ◽  
Co Doped

The optical properties of carbon dots are improved synergistically by co-doping nitrogen and sulfur, which renders excellent performances in cell imaging and Fe3+detection.

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.

Highly Cu2+-sensitive and selective colorimetric and fluorescent probes: Utilizations in batch, flow analysis and living cell imaging

2017 ◽  
Vol 241 ◽  
pp. 868-878 ◽  
Author(s):  
Yordkhuan Tachapermpon ◽  
Sumonmarn Chaneam ◽  
Adisri Charoenpanich ◽  
Jitnapa Sirirak ◽  
Nantanit Wanichacheva
Keyword(s):  
Fluorescent Probes ◽  
Living Cell ◽  
Cell Imaging ◽  
Flow Analysis ◽  
Living Cell Imaging

Green and Simple Synthesis of Photoluminescence-Tunable Carbon Dots for Sensing and Cell Imaging Applications

2021 ◽  
Vol 21 (12) ◽  
pp. 6101-6110
Author(s):  
Dong Sun ◽  
Shu-Jun Li ◽  
Chun-Feng Wang ◽  
Tian-Tian Liu ◽  
Guang-Yue Bai ◽  
...  
Keyword(s):  
Boric Acid ◽  
Carbon Dots ◽  
Luminescence Property ◽  
Cell Imaging ◽  
Fluorescence Emission ◽  
Fluorescent Imaging ◽  
Simple Synthesis ◽  
Low Toxicity ◽  
Doped Carbon Dots ◽  
Co Doped

Innovative nitrogen and boron co-doped carbon dots are hydrothermally produced using fructose, urea, and boric acid as precursors. The synthesized carbon dots possess a uniform morphology, and exhibit excellent fluorescence stability, tunable luminescence property, strong resistance to photobleaching, low-toxicity, and excellent biocompatibility. It is also found more dopant urea is conducive to the formation of the carbon dots with more B–N bonds, and shorter wavelength of fluorescence emission. Meanwhile, the synthesized carbon dots are well utilized as a photoluminescent probe for facile Hg2+ determination and fluorescent imaging reagent in cells.

Novel fluorescent probes for sequential detection of Cu2+ and citrate anion and application in living cell imaging

2019 ◽  
Vol 161 ◽  
pp. 331-340 ◽  
Author(s):  
Yongxin Chang ◽  
Jiaxin Fu ◽  
Kun Yao ◽  
Bai Li ◽  
Kuoxi Xu ◽  
...  
Keyword(s):  
Fluorescent Probes ◽  
Living Cell ◽  
Cell Imaging ◽  
Sequential Detection ◽  
Living Cell Imaging ◽  
Citrate Anion

Nitrogen and phosphorus co-doped carbon dots derived from lily bulbs for copper ion sensing and cell imaging

2018 ◽  
Vol 83 ◽  
pp. 272-278 ◽  
Author(s):  
Dan Gu ◽  
Pingbo Zhang ◽  
Lei Zhang ◽  
Hao Liu ◽  
Zhanbin Pu ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Cell Imaging ◽  
Copper Ion ◽  
Nitrogen And Phosphorus ◽  
Ion Sensing ◽  
Doped Carbon Dots ◽  
Co Doped

scholarly journals New rhodamine B-based chromo-fluorogenic probes for highly selective detection of aluminium(iii) ions and their application in living cell imaging

RSC Advances ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 6027-6034 ◽  
Author(s):  
Xin Leng ◽  
Wenfeng Xu ◽  
Chengfang Qiao ◽  
Xu Jia ◽  
Ying Long ◽  
...  
Keyword(s):  
Fluorescent Probes ◽  
Rhodamine B ◽  
Living Cell ◽  
Cell Imaging ◽  
Biological Imaging ◽  
Selective Detection ◽  
Fluorogenic Probes ◽  
Living Cell Imaging

Two rhodamine B-based fluorescent probes exhibited remarkable absorbance-on and fluorescence-on responses to Al3+, which can be used for biological imaging.

A highly selective ICT-based fluorescent probe for cysteine sensing and its application in living cell imaging

2019 ◽  
Vol 11 (9) ◽  
pp. 1199-1207 ◽  
Author(s):  
Srimanta Manna ◽  
Parthasarathi Karmakar ◽  
Syed Samim Ali ◽  
Uday Narayan Guria ◽  
Sandip kumar Samanta ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Fluorescent Probes ◽  
Living Cell ◽  
Cell Imaging ◽  
Dual Reporter ◽  
Specific Position ◽  
Living Cell Imaging

We report two novel fluorescent probes viz.BPQ1 and BPQ2, to detect selectively cysteine (Cys) in dual reporter mode based upon the specific position of the reactive acrylate group.

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