Determination of 2, 6-dipicolinic acid as an Anthrax biomarker based on the enhancement of copper nanocluster fluorescence by reversible aggregation-induced emission

Ma, Fanghui; Deng, Lei; Wang, Tingting; Zhang, Aomei; Yang, Minghui; Li, Xiaoqing; Chen, Xiang

doi:10.1007/s00604-023-05910-z

Microchim Acta

2023

DOI: 10.1007/s00604-023-05910-z

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Determination of 2, 6-dipicolinic acid as an Anthrax biomarker based on the enhancement of copper nanocluster fluorescence by reversible aggregation-induced emission

Fanghui Ma

Lei Deng

Tingting Wang

et al.

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2024

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Cited by 7 publications

References 47 publications

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Sensitive Determination of Diosmetin Using Orange‐Red Fluorescent Copper Nanoclusters

Yang,

Kuang,

Yuan

et al. 2024

ChemistrySelect

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Diosmetin (Dio) has attracted much attention because of its good pharmacological effects, thus it is necessary to determine its content in scientific research and production. In the study, stable orange‐red copper nanoclusters with 4‐hydroxy‐2‐mercapto‐6‐propylpyrimidine (PTU) as reducing agent and ligand (PTU‐CuNCs) was prepared by a simple approach with superior quantum yield (18.03 %), and the PTU‐CuNCs with red fluorescence could improve the anti‐interference ability of detection. Meanwhile, the synthesis conditions of PTU‐CuNCs were optimized and analyzed in detail. Through a series of experiments, it was found that inner filter effect (IFE) and dynamic quenching might become the main reasons for the fluorescence quenching of PTU‐CuNCs by Dio. Based on the mechanism, a fluorescence probe for the determination of Dio was established. In the range of 0.33–31.67 μmol L−1, the fluorescence quenching efficiency of PTU‐CuNCs was linearly related to the contents of Dio, and corresponding limit of determination (LOD) was estimated to be 101.3 nmol L−1, and limit of quantitation (LOQ) was calculated to be 337.4 nmol L−1. Furthermore, the method could be used effectively for the assay of Dio in practical samples.

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Sensitive Determination of Diosmetin Using Orange‐Red Fluorescent Copper Nanoclusters

Yang,

Kuang,

Yuan

et al. 2024

ChemistrySelect

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Tb3+ assisted dithioerythritol stabilized copper nanocluster with AIE behavior for ratiometric fluorescent determination of fluoroquinolones

Liu,

Wang,

Liu

et al. 2024

Analytica Chimica Acta

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Sm3+-tuning aggregation-induced emission of copper nanoclusters for sensitive and visual detection of glyphosate

Wang,

Wu,

Wang

et al. 2024

Journal of Environmental Chemical Engineering

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Determination of 2, 6-dipicolinic acid as an Anthrax biomarker based on the enhancement of copper nanocluster fluorescence by reversible aggregation-induced emission

Cited by 7 publications

References 47 publications

Sensitive Determination of Diosmetin Using Orange‐Red Fluorescent Copper Nanoclusters

Sensitive Determination of Diosmetin Using Orange‐Red Fluorescent Copper Nanoclusters

Tb3+ assisted dithioerythritol stabilized copper nanocluster with AIE behavior for ratiometric fluorescent determination of fluoroquinolones

Sm3+-tuning aggregation-induced emission of copper nanoclusters for sensitive and visual detection of glyphosate

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