DataVXACS Applied Nano MaterialsPaper
journal article·2023-10-27

Two-Photon Carbon Quantum Dots for Detection of Chlortetracycline in Foods

Hui Dong, Linlin Zheng, Meng Wang, Le Zhao, Ke Xu, Yanli Zhou, Yintang Zhang, Maotian Xu

ACS Applied Nano Materials· Volume 6· Issue 20
Publisher page
Source abstract

Abstract

Antibiotics are emerging contaminants in the environment, and their monitoring is important for food safety and human health. Herein, we synthesized a two-photon carbon quantum dots (TP-CQDs) nanoprobe using a simple and green hydrothermal approach and applied it as a chemosensor to detect chlortetracycline (CTC). CTC quenches the intrinsic fluorescence of TP-CQDs, providing a linear response within the 0.5 to 60 μM range and yielding a limit of detection of only 25 nM. Besides excellent stability and good optical properties, we found that TP-CQDs are selective to CTC as structurally similar antibiotics, along with cations, anions, and amino acids, had no significant influence on fluorescence emission. Finally, we successfully applied this sensing platform to quantify CTC in milk, fish, and eggs.
Source: openalex_inverted_index · Quality: baseline

Research context

Nanomaterials

OpenAlex topics: Carbon and Quantum Dots Applications · Nanocluster Synthesis and Applications · Advanced biosensing and bioanalysis techniques

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Henan Key Laboratory of Biomolecular Recognition and Sensing, College of Chemistry and Chemical Engineering, Henan Joint International Research Laboratory of Chemo/Biosensing and Early Diagnosis of Major Diseases, Shangqiu Normal University, Shangqiu 476000, China

School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113000, China

Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China

Funding

Science and Technology Innovation Talents in Universities of Henan Province · National Natural Science Foundation of China · Research Initiation Funding Project of Shangqiu Normal University · Excellent Youth Fund of Henan Province · Program for Innovative Research Team in University of Henan Province

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