Silver ions involved fluorescence “on–off” responses of gold nanoclusters system for determination of carbendazim residues in fruit samples

Guan, Mengting; Guo, Yue; Yan, Xiaoxia; Si, Xiaojing; Peng, Xitian; Lei, Yunyi; Shen, Xiaoshuang; Luo, Liqiang; He, Haibo

doi:10.1016/j.foodchem.2022.132836

Cited by 14 publications

(4 citation statements)

References 27 publications

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“…4a) ( I 0 / I = 0.7233 + 1.0436, R 2 = 0.986), with a limit of detection (LOD) of 32.66 nM, on the basis of 3 δ / k . 42 Moreover, the colorimetric detection was analyzed by recording the absorbance (Fig. 4b).…”

Section: Resultsmentioning

confidence: 99%

A silicon-doped carbon dot-based multivariate fluorometric and colorimetric probe for the simultaneous detection of heavy metal ions and dopamine

Hao,

Li,

Tian

et al. 2024

New J. Chem.

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Section: Resultsmentioning

confidence: 99%

A silicon-doped carbon dot-based multivariate fluorometric and colorimetric probe for the simultaneous detection of heavy metal ions and dopamine

Hao,

Li,

Tian

et al. 2024

New J. Chem.

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“…He et al developed AIE-based carbendazim sensor C66 based on the AIEE aggregates formed between GSH-capped AuNCs and Ag + cations, promoted by the coordination between the Ag + and GSH ligands. 295 Preferential complexation between carbendazim's imidazolium nitrogen and Ag + , however, led to disaggregation of C66 , thereby quenching red emission. Likewise, a similar approach was adopted by thiram-sensor C67 which relies on the competitive coordination of Ag + with thiram to cause fluorescence weakening of AIEE-active GSH-Au NC/Ag + aggregates.…”

Section: Sensing For Environmental Monitoring and Food Safetymentioning

confidence: 99%

Recent advances in aggregation-induced emission (AIE)-based chemosensors for the detection of organic small molecules

Chua,

Hui,

Chin

et al. 2023

Mater. Chem. Front.

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“…Gold nanoclusters (AuNCs) have recently emerged as promising fluorescent nanoprobes for biosensing because of their ultrasmall core size (<2 nm), strong photoluminescence, facile availability, and good biocompatibility. − Previous studies showed that certain metal ions could trigger the assembly of AuNCs and regulate their optical properties. − Herein, by taking advantage of this distinct metal-ion-regulated assembly of gold nanoclusters, we designed a four-channel fluorescent sensor array for the differential sensing of various PPs (i.e., ATP, ADP, AMP, GTP, CTP, UTP, PPi, and Pi). While trivalent lanthanide ions have a high affinity to oxygen-donor atoms, especially phosphates, , Zn 2+ also possesses strong coordination capability with the phosphate groups .…”

Section: Introductionmentioning

confidence: 99%

Metal Ion-Regulated Fluorescent Sensor Array Based on Gold Nanoclusters for Physiological Phosphate Sensing

Zhou,

Huang,

Liu

et al. 2024

Anal. Chem.

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The detection of physiological phosphates (PPs) is of great importance due to their essential roles in numerous biological processes, but the efficient detection of different PPs simultaneously remains challenging. In this work, we propose a fluorescence sensor array for detecting PPs based on metal-ion-regulated gold nanoclusters (AuNCs) via an indicator-displacement assay. Zn 2+ and Eu 3+ are selected to assemble with two different AuNCs, resulting in quenching or enhancing their fluorescence. Based on the competitive interaction of metal ions with AuNCs and PPs, the fluorescence of AuNCs will be recovered owing to the disassembly of AuNC-metal ion ensembles. Depending on different PPs' distinct fluorescence responses, a four-channel sensor array was established. The array not only exhibits good discrimination capability for eight kinds of PPs (i.e., ATP, ADP, AMP, GTP, CTP, UTP, PPi, and Pi) via linear discriminant analysis but also enables quantitative detection of single phosphate (e.g., ATP) in the presence of interfering PPs mixtures. Moreover, potential application of the present sensor array for the discrimination of different PPs in real samples (e.g., cell lysates and serum) was successfully demonstrated with a good performance. This work illustrates the great potential of a metal ion-regulated sensor array as a new and efficient sensing platform for differential sensing of phosphates as well as other disease-related biomolecules.

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Silver ions involved fluorescence “on–off” responses of gold nanoclusters system for determination of carbendazim residues in fruit samples

Cited by 14 publications

References 27 publications

A silicon-doped carbon dot-based multivariate fluorometric and colorimetric probe for the simultaneous detection of heavy metal ions and dopamine

A silicon-doped carbon dot-based multivariate fluorometric and colorimetric probe for the simultaneous detection of heavy metal ions and dopamine

Recent advances in aggregation-induced emission (AIE)-based chemosensors for the detection of organic small molecules

Metal Ion-Regulated Fluorescent Sensor Array Based on Gold Nanoclusters for Physiological Phosphate Sensing

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