Facile synthesis of bright yellow fluorescent nitrogen-doped carbon quantum dots and their applications to an off-on probe for highly sensitive detection of methimazole

2021 ◽  
pp. 106480
Author(s):  
Chunhe Yu ◽  
Dongmiao Qin ◽  
Xiaohua Jiang ◽  
Xiangfei Zheng ◽  
Biyang Deng
Keyword(s):  
Quantum Dots ◽  
Carbon Quantum Dots ◽  
Sensitive Detection ◽  
Facile Synthesis ◽  
Nitrogen Doped ◽  
Bright Yellow ◽  
Highly Sensitive ◽  
Highly Sensitive Detection ◽  
Nitrogen Doped Carbon

Nitrogen-doped carbon dot mediated fluorescence on–off assay for highly sensitive detection of I− and Br− ions

2018 ◽  
Vol 42 (17) ◽  
pp. 14332-14339 ◽  
Author(s):  
Nan Zhou ◽  
Xingwei Zhang ◽  
Yanping Shi ◽  
Zeliang Li ◽  
Zhibiao Feng
Keyword(s):  
Quantum Dots ◽  
Citric Acid ◽  
Carbon Source ◽  
Nitrogen Source ◽  
Carbon Quantum Dots ◽  
Sensitive Detection ◽  
Nitrogen Doped ◽  
Highly Sensitive ◽  
Highly Sensitive Detection ◽  
Nitrogen Doped Carbon

Nitrogen-doped carbon quantum dots (CDs) were synthesized in ethanol media by using citric acid (CA) as the carbon source and ethanediamine (EDA) as the nitrogen source.

Facile synthesis of novel carbon quantum dots from biomass waste for highly sensitive detection of iron ions

2020 ◽  
Vol 124 ◽  
pp. 110730 ◽  
Author(s):  
Cunjin Wang ◽  
Huanxian Shi ◽  
Min Yang ◽  
Yujia Yan ◽  
Enzhou Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Carbon Quantum Dots ◽  
Sensitive Detection ◽  
Iron Ions ◽  
Facile Synthesis ◽  
Biomass Waste ◽  
Highly Sensitive ◽  
Highly Sensitive Detection

scholarly journals Green Preparation of Fluorescent Nitrogen-Doped Carbon Quantum Dots for Sensitive Detection of Oxytetracycline in Environmental Samples

Nanomaterials ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1561
Author(s):  
Rong Gao ◽  
Zhibin Wu ◽  
Li Wang ◽  
Jiao Liu ◽  
Yijun Deng ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Tap Water ◽  
Orange Peel ◽  
Carbon Quantum Dots ◽  
Sensitive Detection ◽  
Biomass Waste ◽  
Visible Absorption ◽  
Nitrogen Doped ◽  
Relative Standard ◽  
Nitrogen Doped Carbon

Nitrogen-doped carbon quantum dots (N-CQDs) with strong fluorescence were prepared by a one-step hydrothermal method using natural biomass waste. Two efficient fluorescent probes were constructed for selective and sensitive detection of oxytetracycline (OTC). The synthesized N-CQDs were characterized by UV-visible absorption spectra, fluorescence spectra, Fourier transform infrared spectroscopy (FT-IR), X-ray photon spectroscopy (XPS), atomic force microscopy (AFM), and high-resolution transmission electron microscopy (HRTEM), which proved that the synthesized N-CQDs surface were functionalized and had stable fluorescence performance. The basis of N-CQDs detection of OTC was discussed, and various reaction conditions were studied. Under optimized conditions, orange peel carbon quantum dots (ON-CQDs) and watermelon peel carbon quantum dots (WN-CQDs) have a good linear relationship with OTC concentrations in the range of 2–100 µmol L−1 and 0.25–100 µmol L−1, respectively. ON-CQDs and WN-CQDs were both successfully applied in detecting the OTC in pretreated tap water, lake water, and soil, with the recovery rate at 91.724–103.206%, and the relative standard deviation was less than 5.35%. The results showed that the proposed N-CQDs proved to be green and simple, greatly reducing the detection time for OTC in the determination environment.

Fluorescent probes for “off–on” highly sensitive detection of Hg2+ and L-cysteine based on nitrogen-doped carbon dots

Talanta ◽  
2016 ◽  
Vol 152 ◽  
pp. 288-300 ◽  
Author(s):  
Yi Zhang ◽  
Peipei Cui ◽  
Feng Zhang ◽  
Xiaoting Feng ◽  
Yaling Wang ◽  
...  
Keyword(s):  
Fluorescent Probes ◽  
Carbon Dots ◽  
Sensitive Detection ◽  
Nitrogen Doped ◽  
Highly Sensitive ◽  
Highly Sensitive Detection ◽  
Doped Carbon Dots ◽  
Nitrogen Doped Carbon

scholarly journals Facile Synthesis of Nitrogen-doped Carbon Quantum Dots for Bio-imaging

2016 ◽  
Vol 43 ◽  
pp. 04002 ◽  
Author(s):  
Persia Ada N. de Yro ◽  
Beejay T. Salon ◽  
Blessie A. Basilia ◽  
Mark Daniel de Luna ◽  
Peerasak Paoprasert
Keyword(s):  
Quantum Dots ◽  
Carbon Quantum Dots ◽  
Facile Synthesis ◽  
Nitrogen Doped ◽  
Bio Imaging ◽  
Nitrogen Doped Carbon
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