The detection of tetracycline antibiotics in environmental waters is crucial due to their widespread use, persistence, and potential toxicity. Herein, a method for the specific detection of tetracycline in aquaculture wastewater using a nitrogen-doped carbon quantum dots fluorescence probe is reported. Nitrogen-doped carbon quantum dots (N-CQDs) were synthesized in one step via a hydrothermal method, employing citric acid as the carbon source and diethylenetriamine as the nitrogen source. The resulting N-CQDs exhibit excellent stability, solubility and fluorescence properties. Upon the introduction of tetracycline, a fluorescence burst can be observed, indicating that the N-CQDs function as a ratio fluorescence probe. The fluorescence burst phenomenon is primarily due to the internal filtering effect. In the case of N-CQDs, this burst is attributed to the overlap between the absorption spectrum of tetracycline and the emission spectrum of the carbon quantum dots, which results in internal filtering. The linear range for tetracycline detection spans from 54.2 nM to 0.8 μM, with a detection limit of 54.2 nM. The developed fluorescence probe shows potential for application in detecting tetracycline in real water samples.

Peilan Yu

Lintong Ji

Teng Wang

Juan Hu

Lihao Jiang

Shancai Guo

Yongjian Pan

Jianyuan Lin

Journal of Fluorescence

JOURNAL OF FLUORESCENCE 是一个国际论坛，用于发表经过同行评议的原创文章，推动这种已建立的光谱技术的实践。涵盖的主题包括理论/和/或数据分析的进展、芳香分子的光物理学研究、溶剂和环境影响、固定或时间分辨测量的发展、荧光显微镜、成像、光漂白/恢复测量的进展和/或磷光用于细胞生物学、化学生物学和荧光在流式细胞术/分析、免疫学、高通量筛选/药物发现、DNA测序/阵列、基因组学和蛋白质组学中的高级应用的研究。典型应用可能包括大分子动力学和构象、细胞内化学和基因表达的研究。该杂志还发表了描述新荧光团的合成和表征的论文，特别是那些表现出独特灵敏度和/或光学特性的荧光团。除了原创文章，该杂志还发表评论、快速通讯、短通讯、致编辑的信函、热门新闻文章以及技术和设计说明。

The Journal of Fluorescence is an international forum dedicated to publishing peer-reviewed original research articles that advance the application of this established spectroscopic technique. Topics covered include advancements in theory and data analysis, studies on the photophysics of aromatic molecules, solvent and environmental effects, developments in fixed or time-resolved measurements, fluorescence microscopy, imaging, advancements in photobleaching/recovery measurements, and the application of phosphorescence in cell biology and chemical biology. Additionally, advanced applications of fluorescence in flow cytometry, immunology, high-throughput screening/drug discovery, DNA sequencing/arrays, genomics, and proteomics are also discussed. Typical applications may include studies on macromolecular dynamics, conformational changes, intracellular chemistry, and gene expression. The journal also publishes papers describing the synthesis and characterization of new fluorophores, particularly those exhibiting unique sensitivity and optical properties. In addition to original research articles, the journal features commentaries, rapid communications, short communications, letters to the editor, popular news articles, and technical and design notes.

《Journal of Fluorescence》是一个国际性论坛，专注于发表经过同行评审的原创研究文章，推动这一成熟光谱技术的应用。涵盖的主题包括理论和数据分析的进展、芳香分子的光物理研究、溶剂和环境影响、固定或时间分辨测量的发展、荧光显微镜、成像、光漂白/恢复测量的进展，以及磷光在细胞生物学、化学生物学中的应用。此外，荧光在流式细胞术、免疫学、高通量筛选/药物发现、DNA测序/阵列、基因组学和蛋白质组学中的高级应用也在讨论范围之内。典型应用可能包括大分子动力学、构象研究、细胞内化学和基因表达研究。该杂志还发表关于新荧光团合成和表征的论文，特别是那些具有独特灵敏度和光学特性的荧光团。除了原创研究文章外，杂志还刊登评论、快速通讯、短通讯、致编辑的信函、热门新闻文章以及技术和设计说明。

Category	Quartile
化学	4
化学, 生化研究方法	4
化学, 分析化学	4
化学, 物理化学	4

Detection of Tetracycline in Farm Wastewater by Nitrogen-doped Carbon Quantum Dots

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Journal Info

Category	Quartile
CHEMISTRY, PHYSICAL	3