Valine-derived carbon dots with colour-tunable fluorescence for the detection of Hg2+ with high sensitivity and selectivity

2015 ◽  
Vol 39 (8) ◽  
pp. 6201-6206 ◽  
Author(s):  
Chunfang Zhang ◽  
Zhongbo Hu ◽  
Li Song ◽  
Yanyan Cui ◽  
Xiangfeng Liu
Keyword(s):  
Carbon Dots ◽  
High Sensitivity ◽  
Sensitivity And Selectivity ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon

Green and yellow fluorescent carbon dots with high sensitivity and selectivity for Hg2+ were synthesized from H3PO4 oxidation of valine.

scholarly journals Highly selective fluorescent carbon dots probe for mercury(ii) based on thymine–mercury(ii)–thymine structure

RSC Advances ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 3982-3988 ◽  
Author(s):  
Yong Li ◽  
Zhan-Yao Zhang ◽  
Hao-Fan Yang ◽  
Guang Shao ◽  
Feng Gan
Keyword(s):  
Carbon Dots ◽  
Fluorescent Sensor ◽  
High Sensitivity ◽  
Sensitivity And Selectivity ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon

A novel thymine-functional fluorescent sensor was developed for Hg2+detection with high sensitivity and selectivity.

scholarly journals Intracellular ratiometric temperature sensing using fluorescent carbon dots

2019 ◽  
Vol 1 (1) ◽  
pp. 105-113 ◽  
Author(s):  
Jun-Ray Macairan ◽  
Dilan B. Jaunky ◽  
Alisa Piekny ◽  
Rafik Naccache
Keyword(s):  
Hela Cells ◽  
Carbon Dots ◽  
High Sensitivity ◽  
Temperature Sensing ◽  
Carbon Dot ◽  
Fluorescent Carbon Dots ◽  
Very High ◽  
Fluorescent Carbon

A self-referencing dual fluorescing carbon dot-based nanothermometer can ratiometrically sense thermal events in HeLa cells with very high sensitivity.

Nitrogen-doped carbon dots from Hutai-8 grape skin and their application in Hg2+ detection

2020 ◽  
Vol 16 ◽  
Author(s):  
Pan Zhang ◽  
Shun-Sheng Zhao ◽  
JiaJia Wang ◽  
Xiang Rong Liu
Keyword(s):  
Heavy Metal ◽  
Carbon Source ◽  
Fluorescence Quenching ◽  
Hydrothermal Method ◽  
Water Samples ◽  
Carbon Dots ◽  
Mercury Ions ◽  
Grape Skin ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon

Background: In recent years, environmental pollution and heavy metal pollution caused by rapid urbanization and industrialization have become increasingly serious. Among them, mercury (II) ion (Hg2+) is one of the highly toxic heavy metal ions, and its pollution comes from various natural resources and human activities. Therefore, people attach great importance to the development of analytical methods for effective analysis and sensitive detection of Hg2+ . Objective: Using grape skin as a green and environmental friendly carbon source, to synthesize fluorescent carbon dots, and try to apply them to the detect the concentration of Hg2+ in water. Method: Using "Hutai No. 8" grape skin as carbon source, fluorescent carbon dots were synthesized by one-step hydrothermal method. Structure and fluorescent properties of the carbon dots were tested using TEM, XPS, XRD and other characterization instruments, and their utilization on detection of mercury ions in the actual water samples was explored. Results: The CDs had a particle size of about 4.8 nm and a spherical shape. There are N-H, C-N, C=O and other functional groups on the surface. It was found that Hg2+ has obvious fluorescence quenching effect on CDs, and thus CDs fluorescence quenching method to detect the concentration Hg2+ was established, and the detection limit is 3.7 μM, which could be applied to test the concentration of Hg2+ in water samples. Conclusion: Using grape skin as carbon source, fluorescent carbon dots were successfully synthesized by hydrothermal method. Carbon dots were used to detect mercury ions in water, and a method for detecting mercury ions in actual water samples was established.

Anti-counterfeiting application of fluorescent carbon dots derived from wasted coffee grounds

Optik ◽  
2021 ◽  
pp. 166449
Author(s):  
Woo Tae Hong ◽  
Jin Young Park ◽  
Jong Won Chung ◽  
Hyun Kyoung Yang ◽  
Jae-Yong Je
Keyword(s):  
Carbon Dots ◽  
Coffee Grounds ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon

Carbon dots derived from Fusobacterium nucleatum for intracellular determination of Fe3+ and bioimaging both in vitro and in vivo

2021 ◽  
Author(s):  
Lijuan Liu ◽  
Shengting Zhang ◽  
Xiaodan Zheng ◽  
Hongmei Li ◽  
Qi Chen ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Fusobacterium Nucleatum ◽  
Living Cells ◽  
First Time ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon

Fusobacterium nucleatum has been employed for the first time to synthesize fluorescent carbon dots which could be applied for the determination of Fe3+ ions in living cells and bioimaging in vitro and in vivo with excellent biocompatibility.

scholarly journals Green fluorescent carbon dots as targeting probes for LED‐dependent bacterial killing

Nano Select ◽  
2021 ◽  
Author(s):  
Jennifer Samphire ◽  
Yuiko Takebayashi ◽  
Stephen A. Hill ◽  
Nicholas Hill ◽  
Kate J. Heesom ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Bacterial Killing ◽  
Green Fluorescent ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon

From coconut petiole residues to fluorescent carbon dots via a green hydrothermal method for Fe3+ detection

Cellulose ◽  
2021 ◽  
Vol 28 (3) ◽  
pp. 1647-1661
Author(s):  
Shiyu Gao ◽  
Xi Wang ◽  
Nan Xu ◽  
Hailan Lian ◽  
Li Xu ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Carbon Dots ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon
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