Highly passivated phosphorous and nitrogen co-doped carbon quantum dots and fluorometric assay for detection of copper ions

KM Omer - Analytical and bioanalytical chemistry, 2018 - Springer
Carbon quantum dots are becoming powerful fluorophore materials for metal ion analysis.
Here, highly passivated green phosphorous and nitrogen co-doped carbon quantum dots (C …

Green synthesis of fluorescent carbon quantum dots from Eleusine coracana and their application as a fluorescence 'turn-off'sensor probe for selective detection of …

N Murugan, M Prakash, M Jayakumar… - Applied surface …, 2019 - Elsevier
A facile, rapid and frugal approach was developed for the preparation of highly fluorescent
carbon quantum dots (CQDs) by pyrolysis of Finger millet ragi (Eleusine coracana) as a …

Carbon quantum dots as fluorescence sensors for label-free detection of folic acid in biological samples

W Zhang, B Wu, Z Li, Y Wang, J Zhou, Y Li - Spectrochimica Acta Part A …, 2020 - Elsevier
Carbon quantum dots (CQDs) have been fabricated by a facile single-step pyrolysis method
from citric acid and ethylene imine polymer. When excited at 359 nm, CQDs show intense …

A unique “turn-on” fluorescence signalling strategy for highly specific detection of ascorbic acid using carbon dots as sensing probe

JFY Fong, SF Chin, SM Ng - Biosensors and Bioelectronics, 2016 - Elsevier
Carbon dots (CDs) that showed strong blue fluorescence were successfully synthesised
from sodium alginate via furnace pyrolysis. The single step pyrolytic synthesis was simple to …

Red emission nitrogen, boron, sulfur co-doped carbon dots for “on-off-on” fluorescent mode detection of Ag+ ions and L-cysteine in complex biological fluids and living …

S Huang, E Yang, J Yao, Y Liu, Q Xiao - Analytica Chimica Acta, 2018 - Elsevier
Herein, a simple and efficient fluorescent assay for Ag+ ions and l-cysteine (L-Cys) in
complex biological fluids and living cells was first developed based on the fluorescent “on …

Fluorescent carbon quantum dots synthesized using phenylalanine and citric acid for selective detection of Fe3+ ions

ZF Pu, QL Wen, YJ Yang, XM Cui, J Ling, P Liu… - … Acta Part A: Molecular …, 2020 - Elsevier
A facile, economical and one-step hydrothermal method was used to synthesize fluorescent
carbon dots by utilizing citric acid as carbon source and phenylalanine to provide nitrogen …

Amide-decorated carbon dots as sensitive and selective probes for fluorescence enhancement detection of cadmium ion

L Tang, C Zhu, Y Yang, J Luo, J Song, H Chen… - … Acta Part A: Molecular …, 2023 - Elsevier
As highly toxic metal ions, cadmium ions (Cd 2+) are prevalent in varying concentrations
around the world. The establishment of an accurate and effective method for Cd 2+ …

Fluorescence turn-on, specific detection of cystine in human blood plasma and urine samples by nitrogen-doped carbon quantum dots

G Kalaiyarasan, C Hemlata, J Joseph - ACS omega, 2019 - ACS Publications
Determination of cystine in blood and urine is very important to monitor and maintain the bio
metabolism, immune systems, and prevent the tissue/DNA damage from free radicals …

Colorimetric and fluorescent detection of glutathione over cysteine and homocysteine with red-emitting N-doped carbon dots

R Jia, K Jin, J Zhang, X Zheng, S Wang… - Sensors and Actuators B …, 2020 - Elsevier
Glutathione (GSH) is an important biothiol in biological systems and serves as a significant
biomarker for the health of humans. Herein, red-emitting carbon dots (p-CDs) prepared by a …

L-Cysteine-coated CdSe/CdS core-shell quantum dots as selective fluorescence probe for copper (II) determination

Y Zhang, H Zhang, X Guo, H Wang - Microchemical Journal, 2008 - Elsevier
Quantum dots (QDs) or semiconductor nanocrystals have been receiving great interest in
the last few years. In this paper, L-cysteine-coated CdSe/CdS core-shell QDs (λem= 585 nm) …