scholarly journals Highly selective and sensitive detection of amaranth by using carbon dots-based nanosensor

RSC Advances ◽  
2019 ◽  
Vol 9 (45) ◽  
pp. 26315-26320 ◽  
Author(s):  
Lizhen Liu ◽  
Zhi Mi ◽  
Haihong Li ◽  
Caiqing Li ◽  
Qin Hu ◽  
...  
Keyword(s):  
Fluorescence Quenching ◽  
Carbon Dots ◽  
Sensitive Detection

Illustration of the synthesis of C-dots and the determination of amaranth based on the fluorescence quenching of C-dots.

Fluorescence quenching and spectrophotometric methods for the determination of 6-mercaptopurine based on carbon dots

RSC Advances ◽  
2016 ◽  
Vol 6 (57) ◽  
pp. 52255-52263 ◽  
Author(s):  
Yusheng Yuan ◽  
Yalan Wang ◽  
Shaopu Liu ◽  
Yuanfang Li ◽  
Ruilin Duan ◽  
...  
Keyword(s):  
Fluorescence Quenching ◽  
Carbon Dots ◽  
Fluorescence Probe ◽  
Carbon Dot ◽  
Spectrophotometric Methods

A carbon dot-based fluorescence probe was designed for detecting 6-mercaptopurine (6-MP) via fluorescence quenching.

Determination of sunset yellow in soft drinks based on fluorescence quenching of carbon dots

2016 ◽  
Vol 167 ◽  
pp. 106-110 ◽  
Author(s):  
Yusheng Yuan ◽  
Xin Zhao ◽  
Man Qiao ◽  
Jinghui Zhu ◽  
Shaopu Liu ◽  
...  
Keyword(s):  
Fluorescence Quenching ◽  
Carbon Dots ◽  
Soft Drinks ◽  
Sunset Yellow

Surfactant-Based Fluorescent Quantum Carbon Dots: Synthesis and Application

2015 ◽  
Vol 1088 ◽  
pp. 381-385 ◽  
Author(s):  
Sandra Štěpánková ◽  
Ondřej Kozák ◽  
Radek Zbořil
Keyword(s):  
Fluorescence Quenching ◽  
Carbon Dots ◽  
Quantitative Method ◽  
Colloidal Stability ◽  
High Selectivity ◽  
Cetylpyridinium Chloride ◽  
Hydrothermal Carbonization ◽  
Fluorescent Carbon Dots

In this work I present fluorescent carbon dots (CDs) prepared by facile and inexpensive synthesis by hydrothermal carbonization from cationic surfactant cetylpyridinium chloride (CPC). These CDs show tunable photoluminescence as well as long-term colloidal stability. Moreover, CDs exhibit high selectivity and sensitivity towards Fe3+ions. Therefore a specific quantitative method is proposed for the determination of Fe3+ions based on fluorescence quenching of CDs.

Sensitive fluorescence detection of mercury(ii) in aqueous solution by the fluorescence quenching effect of MoS2 with DNA functionalized carbon dots

The Analyst ◽  
2016 ◽  
Vol 141 (22) ◽  
pp. 6344-6352 ◽  
Author(s):  
K. Srinivasan ◽  
K. Subramanian ◽  
K. Murugan ◽  
K. Dinakaran
Keyword(s):  
Aqueous Solution ◽  
Fluorescence Quenching ◽  
Fluorescence Detection ◽  
Carbon Dots ◽  
Sensitive Detection ◽  
Quenching Effect ◽  
Highly Sensitive ◽  
Highly Sensitive Detection ◽  
Fluorescence Spectrometer

Highly sensitive detection of mercury(ii) ions by using a fluorescence spectrometer using MoS2 nanosheets and DNA labeled carbon dots is presented.

Two fluorescence quenching immunochromatographic assays based on carbon dots and quantum dots as donor probes for the determination of enrofloxacin

2019 ◽  
Vol 11 (18) ◽  
pp. 2378-2384 ◽  
Author(s):  
Shijie Li ◽  
Yanan Wang ◽  
Xingqian Mu ◽  
Wei Sheng ◽  
Junping Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Fluorescence Quenching ◽  
Carbon Dots ◽  
Lateral Flow

Two fluorescence quenching lateral flow immunochromatographic assays were developed based on carbon dots (CDs) and quantum dots (QDs) as donor signal probes.

Determination of DNA based on fluorescence quenching of terbium doped carbon dots

2018 ◽  
Vol 185 (11) ◽  
Author(s):  
Lili Liu ◽  
Cengceng Zhang ◽  
Yuanyuan Yu ◽  
Fang Chen
Keyword(s):  
Fluorescence Quenching ◽  
Carbon Dots ◽  
Doped Carbon Dots

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.

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 Dual-emission ratio fluorescence for selective and sensitive detection of ferric ions and ascorbic acid based on one-pot synthesis of glutathione protected gold nanoclusters

RSC Advances ◽  
2021 ◽  
Vol 11 (28) ◽  
pp. 17283-17290
Author(s):  
Shuai Zhang ◽  
Cong Zhang ◽  
Xiaodong Shao ◽  
Rentian Guan ◽  
Yingying Hu ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Gold Nanoclusters ◽  
Sensitive Detection ◽  
Dual Fluorescence ◽  
Ferric Ions ◽  
Fluorometric Method ◽  
One Pot ◽  
Dual Emission ◽  
One Pot Synthesis

A fluorometric method was proposed for the determination of Fe3+ and ascorbic acid (AA) based on blue and red dual fluorescence emissions of glutathione (GSH) stabilized-gold nanoclusters (AuNCs).

Sign in / Sign up

Export Citation Format

Share Document