A novel chemiluminescence sensor for the determination of indomethacin based on sulfur and nitrogen co-doped carbon quantum dot-KMnO4 reaction

Luminescence ◽  
2017 ◽  
Vol 32 (7) ◽  
pp. 1174-1179 ◽  
Author(s):  
Tooba Hallaj ◽  
Mohammad Amjadi ◽  
Jamshid L. Manzoori ◽  
Neda Azizi
Keyword(s):  
Quantum Dot ◽  
Carbon Quantum Dot ◽  
Co Doped

Determination of L-ascorbic Acid by Carbon Quantum Dot/Eosin Y Ratiometric Fluorescence Probe

2020 ◽  
Vol 41 (3) ◽  
pp. 331-338
Author(s):  
武文波 WU Wen-bo ◽  
张越诚 ZHANG Yue-cheng ◽  
李承佳 LI Cheng-jia ◽  
马红燕 MA Hong-yan ◽  
杨晓军 YANG Xiao-jun
Keyword(s):  
Ascorbic Acid ◽  
Quantum Dot ◽  
Fluorescence Probe ◽  
Eosin Y ◽  
Ratiometric Fluorescence ◽  
Carbon Quantum Dot

scholarly journals Carbon Quantum Dot-Modified Carbon Paste Electrode-Based Sensor for Selective and Sensitive Determination of Adrenaline

ACS Omega ◽  
2019 ◽  
Vol 4 (4) ◽  
pp. 7903-7910 ◽  
Author(s):  
S. Sharath Shankar ◽  
Rayamarakkar M. Shereema ◽  
Vishnu Ramachandran ◽  
T. V. Sruthi ◽  
V. B. Sameer Kumar ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Carbon Paste Electrode ◽  
Modified Carbon Paste Electrode ◽  
Carbon Paste ◽  
Carbon Quantum Dot ◽  
Sensitive Determination ◽  
Paste Electrode

Preparation of polyacrylonitrile nanofibers decorated by N-doped carbon quantum dots: application as a fluorescence probe for determination of Cr(vi)

2018 ◽  
Vol 42 (23) ◽  
pp. 18765-18772 ◽  
Author(s):  
Tayyebeh Madrakian ◽  
Amir Hossein Mohammadzadeh ◽  
Somayeh Maleki ◽  
Abbas Afkhami
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Fluorescence Probe ◽  
Carbon Quantum Dots ◽  
New Method ◽  
Carbon Quantum Dot

This study presents a new method to synthesize a fluorescence probe using an N-doped carbon quantum dot decorated polyacrylonitrile nanofiber (N-CQD@NF) nanocomposite.

Determination of bromate via the chemiluminescence generated in the sulfite and carbon quantum dot system

2018 ◽  
Vol 185 (2) ◽  
Author(s):  
Liping Li ◽  
Xiaojing Lai ◽  
Xin Xu ◽  
Jie Li ◽  
Ping Yuan ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Carbon Quantum Dot

scholarly journals Nicotinamide-functionalized carbon quantum dot as new sensing platform for portable quantification of vitamin B12 in fluorescence, UV-Vis and smartphone triple mode

2021 ◽  
Author(s):  
Sahar Dadkhah ◽  
Ali Mehdinia ◽  
Ali Jabbari ◽  
Ahmad Manbohi
Keyword(s):  
Quantum Dot ◽  
Vitamin B12 ◽  
Simultaneous Detection ◽  
High Sensitivity ◽  
Colorimetric Sensing ◽  
Practical Applications ◽  
Carbon Quantum Dot ◽  
Sensing Platform ◽  
Triple Mode

Abstract Development of an efficient, portable and simple nanosensor-based systems with reliable analytical performance for on-site monitoring of vitamin B12 (VB12) are still major problems and a challenging work for quality control of manufacturers. Herein, a new fluorescence, UV-Vis and smartphone triple mode nanosensors were designed for the simultaneous detection of VB12 with high sensitivity and accuracy. A novel nanosensor was synthesized through nicotinamide-functionalizing on carbon quantum dot (NA-CQDs) by an one-step microwave-assisted method with green approaches. The NA-CQDs as new nanosensor showed excellent fluorescence properties and wide linear ranges from 0.1–60 µM with the detection limits of 31.7 nM. Moreover, color changes of NA-CQDs induced by the VB12 could also be detected by UV-Vis spectrophotometer and inhouse-developed application installed on smartphone as a signal reader, simultanusly. The Red, Green and Blue (RGB) intensities of the colorimetric images of NA-CQDs/VB12 system which taken by smartphone's camera converted into quantitative values by the introduced application. A smartphone-integrated with NA-CQDs as colorimetric sensing platform displays good linear ranges (4.16 to 66.6 µM) for on-site determination of VB12 with detection limit of 1.40 µM. The method was successfully applied in the determination of VB12 in complex pharmaceutical supplement formulations without any sample pre-treatment and matrix interfering effects. The recovery results (96.52–105.10%) which are in agreement with the reference methods, demonstrating the capability of the smartphone-assisted colorimetric sensing platform in many on-site practical applications of quality controls.

High-activity Mo, S co-doped carbon quantum dot nanozyme-based cascade colorimetric biosensor for sensitive detection of cholesterol

2019 ◽  
Vol 7 (44) ◽  
pp. 7042-7051 ◽  
Author(s):  
Lianjing Zhao ◽  
Zepei Wu ◽  
Guannan Liu ◽  
Huiying Lu ◽  
Yuan Gao ◽  
...  
Keyword(s):  
Quantum Dot ◽  
High Activity ◽  
Sensitive Detection ◽  
Colorimetric Sensing ◽  
Carbon Quantum Dot ◽  
Sensing Platform ◽  
Co Doped

A Mo, S co-doped carbon quantum dot nanozyme-based cascade colorimetric sensing platform was fabricated and its application for detection of cholesterol was shown.

scholarly journals Fluorescent carbon quantum dot hydrogels for direct determination of silver ions

Talanta ◽  
2016 ◽  
Vol 151 ◽  
pp. 100-105 ◽  
Author(s):  
A. Cayuela ◽  
M.L. Soriano ◽  
S.R. Kennedy ◽  
J.W. Steed ◽  
M. Valcárcel
Keyword(s):  
Quantum Dot ◽  
Direct Determination ◽  
Silver Ions ◽  
Carbon Quantum Dot ◽  
Fluorescent Carbon

scholarly journals Flexible and Transparent Memristive Synapse Based on Polyvinylpyrrolidone/N-doped Carbon Quantum Dot Nanocomposites for Neuromorphic Computing

2021 ◽  
Author(s):  
Tao Zeng ◽  
Zhi Yang ◽  
Jiabing Liang ◽  
Ya Lin ◽  
Yankun Cheng ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Neuromorphic Computing ◽  
Carbon Quantum Dot ◽  
Hardware Implementations

Memristive devices are widely recognized as promising hardware implementations of neuromorphic computing. Herein, a flexible and transparent memristive synapse based on polyvinylpyrrolidone (PVP)/N-doped carbon quantum dot (NCQD) nanocomposites through regulating...

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