On-off-on fluorescent nanosensing: Materials, detection strategies and recent food applications

H He, DW Sun, Z Wu, H Pu, Q Wei - Trends in Food Science & Technology, 2022 - Elsevier
Background The detection of food quality and safety is important in the whole food supply
chain. In recent years, fluorescent detection technology has been extensively applied in food …

Current progress of ratiometric fluorescence sensors based on carbon dots in foodborne contaminant detection

J Zhang, H Chen, K Xu, D Deng, Q Zhang, L Luo - Biosensors, 2023 - mdpi.com
Carbon dots (CDs) are widely used in the detection of foodborne contaminants because of
their biocompatibility, photoluminescence stability, and ease of chemical modification. In …

Avocado seeds derived carbon dots for highly sensitive Cu (II)/Cr (VI) detection and copper (II) removal via flocculation

JM Ávila, MR Ayala, Y Kumar, E Pérez-Tijerina… - Chemical Engineering …, 2022 - Elsevier
Sustainable, scalable and green carbon dots (CDs) were derived from avocado seeds using
carbonization at different temperatures (250, 400, and 600° C) and were applied as …

A smartphone-integrated portable platform based on polychromatic ratiometric fluorescent paper sensors for visual quantitative determination of norfloxacin

J Zhang, J Wang, F Ouyang, Z Zheng, X Huang… - Analytica Chimica …, 2023 - Elsevier
The emergence of “superbugs” due to antibiotics overuse poses a significant threat to
human health and security. The development of sensitive and effective antibiotics detection …

Nitrogen/sulfur-doped dual-emission carbon dots with tunable fluorescence for ratiometric sensing of ferric ions and cell membrane imaging

C Liang, X Xie, Q Shi, J Feng, D Zhang… - Applied Surface Science, 2022 - Elsevier
Intrinsic dual-emission carbon dots (CDs) with long wavelength and self-calibration
attributes are critical in fluorescence sensing and imaging, but their synthesis remains a …

Hydrothermal synthesis of dual emission carbon dots with yellow fluorescence for ratio detection of Al3+

X Gao, Y Zhang, Z Fu, J Tian, L Zhang, W Li, S Li, F Cui - Optical Materials, 2023 - Elsevier
Dual-emission carbon dots with strong yellow fluorescence (Y-CDs) were prepared by one-
step hydrothermal method from p-aminophenol and ethylenediamine. Two emission centres …

Sensing of amino acids: Critical role of nanomaterials for the efficient biomedical analysis

MB Behyar, M Hasanzadeh, F Seidi, N Shadjou - Microchemical Journal, 2023 - Elsevier
Amino acids (AAs) are essential, important, and integral parts of the human body that play a
vital role in health. As important components of body metabolism, AAs are used as …

A signal-off fluorescent strategy for deferasirox effective detection using carbon dots as probe and Cu2+ as medium

W Han, C Miao, X Zhang, Y Lin, X Hao, Z Huang… - Analytica Chimica …, 2021 - Elsevier
The content of deferasirox (DEF) in plasma is significant in β-thalassemia patient that needs
long-term transfusion therapy, while the effective and simple strategy for DEF monitoring is …

Selective detection of aspartic acid in human serum by a fluorescent probe based on CuInS2@ ZnS quantum dots

S Safari, A Amiri, A Badiei - Spectrochimica Acta Part A: Molecular and …, 2023 - Elsevier
The importance of amino acids identification in biological systems has created expectation
to develop a sensitive method for their detection. In this work, an efficient core-shell …

A ratiometric fluorescence sensor for tetracycline detection based on two fluorophores derived from Partridge tea

LS Li, HW Liang, CT Wu, S Li, YX Zhang, YT Song… - Microchimica Acta, 2023 - Springer
Blue fluorescent carbon dots (PCDs) were prepared by hydrothermal method with Partridge
tea. The ethanol extract of Partridge tea (PEE) was found to emit red fluorescence. Thus, a …