One‐pot green and simple synthesis of polyvinyl pyrrolidone capped for copper nanoclusters for high selectivity sensing of fluazinam

Cai, Zhiyong; Pang, Shulin; Ma, Xinru; Zhu, Li; Zhang, Yefan; Tian, Fang; Zhang, Caifeng

doi:10.1049/mnl.2019.0757

Cited by 2 publications

(2 citation statements)

References 26 publications

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“…His@CuNCs were synthesized following one reported method with few changes [46]. First, CuCl 2 solution (0.1 M) of 0.1 ml and AA solution (0.1 M) of 1 ml were introduced into 20 ml histidine (0.1 M) at an indoor temperature with stirring for 10 min.…”

Section: Methodsmentioning

confidence: 99%

Histidine‐capped copper nanoclusters for in situ amplified fluorescence monitoring of doxycycline through inner filter effect

Zhang,

Ma,

et al. 2024

Luminescence

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There is a significant need to accurately measure doxycycline concentrations in view of the adverse effects of an overdose on human health. A fluorescence (FL) detection method was adopted and copper nanoclusters (CuNCs) were synthesized using chemical reduction technology. Based on FL quenching with doxycycline, the prepared CuNCs were used to explore a fluorescent nanoprobe for doxycycline detection. In an optimal sensing environment, this FL nanosensor was sensitive and selective in doxycycline sensing and displayed a linear relationship in the range 0.5–200 μM with a detection limit of 0.092 μΜ. A characterization test demonstrated that CuNCs offered active functional groups for identifying doxycycline using electrostatic interaction and hydrogen bonds. Static quenching and the inner filter effect (IFE) resulted in weakness in the FL of His@CuNCs with doxycycline with great efficiency. This suggested nanosensor was revealed to be a functional model for simple and rapid detection of doxycycline in real samples with very pleasing accuracy.

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Section: Methodsmentioning

confidence: 99%

Histidine‐capped copper nanoclusters for in situ amplified fluorescence monitoring of doxycycline through inner filter effect

Zhang,

Ma,

et al. 2024

Luminescence

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“…In addition, the amino groups in glutathione are also reacted as reductive agents to synthesize Cu nanoclusters. Therefore, glutathione is not only a reductive agent but also a protective agent [31][32][33], which is greatly helpful for the preparation of Cu nanoclusters with high stability and fluorescence quantum yields. The selected reaction parameters, such as reaction time, temperature, pH, glutathione concentration and copper precursors, pose great influences on Cu nanoclusters preparation.…”

Section: Preparation and Characterization Of Cu Nanoclustersmentioning

confidence: 99%

Portable smartphone-integrated paper sensors for fluorescence detection of As(III) in groundwater

Liu

Yang

et al. 2020

R. Soc. open sci.

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Arsenic contamination in groundwater is a supreme environmental problem, and levels of this toxic metalloid must be strictly monitored by a portable, sensitive and selective analytical device. Herein, a new system of smartphone-integrated paper sensors with Cu nanoclusters was established for the effective detection of As(III) in groundwater. For the integration system, the fluorescence emissive peak of Cu nanoclusters at 600 nm decreased gradually with increasing As(III) addition. Meanwhile, the fluorescence colour also changed from orange to colourless, and the detection limit was determined as 2.93 nM (0.22 ppb) in a wide detection range. The interfering ions also cannot influence the detection selectivity of As(III). Furthermore, the portable paper sensors based on Cu nanoclusters were fabricated for visual detection of As(III) in groundwater. The quantitative determination of As(III) in natural groundwater has also been accomplished with the aid of a common smartphone. Our work has provided a portable and on-site detection technique toward As(III) in groundwater with high sensitivity and selectivity.

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One‐pot green and simple synthesis of polyvinyl pyrrolidone capped for copper nanoclusters for high selectivity sensing of fluazinam

Cited by 2 publications

References 26 publications

Histidine‐capped copper nanoclusters for in situ amplified fluorescence monitoring of doxycycline through inner filter effect

Histidine‐capped copper nanoclusters for in situ amplified fluorescence monitoring of doxycycline through inner filter effect

Portable smartphone-integrated paper sensors for fluorescence detection of As(III) in groundwater

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