A highly sensitive and selective “turn off” fluorescent sensor based on water soluble copper nanoclusters for morin and temperature sensing

Cai, Zhiyong; Zhu, Ruizhi; Zhang, Shen; Wu, Liangliang; Li, Junhong; Huang, Suiyuan; Ma, Xinru

doi:10.1016/j.jlumin.2021.118108

Cited by 16 publications

(3 citation statements)

References 56 publications

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“…Recently, the strategy based on AIE has garnered significant research attention by tuning the optical properties of MNCs. − In contrast to Ag and AuNCs, CuNCs are relatively less explored because of their instability after formation. Unlike AgNCs , and AuNCs, − the preparation of highly stable luminescent CuNCs is still challenging owing to their inherent propensity to get oxidized under ambient conditions and greater tendency to aggregate in aqueous solution. − Additionally, the lower reduction potential of Cu ( E 0 = 0.34 V) compared to those of Ag ( E 0 = 0.80 V) and Au ( E 0 = 1.50 V) further limits the development of CuNCs . In a seminal work, Cai and co-workers reported the preparation of ascorbic acid (AA)-templated monodispersed CuNCs, which were highly photostable and were used in the detection of quercetin in bovine serum albumin .…”

Section: Introductionmentioning

confidence: 99%

White Light Generation through l-Ascorbic Acid-Templated Thermoresponsive Copper Nanoclusters

Shekhar

Mahato

Yadav

et al. 2022

ACS Sustainable Chem. Eng.

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Owing to their lower toxicity and tuneable optical properties, luminescent copper nanoclusters (CuNCs) have emerged as a new generation of materials with multidiverse applications in cellular imaging, sensing, and optoelectronics. However, the preparation of highly stable CuNCs using a small ligand as a template still serves as a bottleneck in the development of nanoclusters. Herein, we report ascorbic acid (AA)-templated blue-emitting CuNCs that display excellent thermoresponsive properties within a temperature range of 25−65 °C. Interestingly, our as-prepared CuNCs can generate white light emission (WLE) when mixed with bovine serum albumin (BSA)templated red-emitting silver nanoclusters (AgNCs) under optimized conditions. The WLE so generated was characterized by the Commission Internationale d'Eclairage (CIE) coordinates of (0.33, 0.30), a color rendering index (CRI) of 80, and a correlated color temperature (CCT) of 5624 K, parameters that are very close to those of pure white light. The cell viability data and confocal laser scanning microscopy images of HeLa cells obtained using these CuNCs substantiate their nontoxic and biocompatible nature.

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Section: Introductionmentioning

confidence: 99%

White Light Generation through l-Ascorbic Acid-Templated Thermoresponsive Copper Nanoclusters

Shekhar

Mahato

Yadav

et al. 2022

ACS Sustainable Chem. Eng.

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“…42–44 The precise sensing of the intracellular temperature can help in the advancement of cell biology and biomedicine. 45–50 The EGCG–Cu NCs prepared in our study might also be used as an off–on fluorescent nanothermometer with fast response, accurate linear response, and good reversibility. Their application has immense potential in living cells.…”

Section: Introductionmentioning

confidence: 96%

Green synthesis of fluorescent copper nanoclusters stabilized by epigallocatechin gallate and their applications as a novel troxerutin (trihydroxyethylrutin) and temperature sensor

Tai

Tang

et al. 2023

New J. Chem.

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“…Fluorescent sensor technology has attracted extensive interestedness of researchers for trace analyte detection in recent years due to their advantages; such as operational/instrumental simplicity, portability, cost e ciency, excellent sensitivity/selectivity, ease of visual detection and fast signal processing [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Propylimidazole Functionalized Coumarin Derivative as Dual Responsive Fluorescent Chemoprobe for Picric Acid and Fe3+ Recognition: DFT and Natural Spring Water Applications

et al. 2022

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A propylimidazole functionalized coumarin derivative (IPC) was fabricated for the rst time and applied as a dual responsive uorescent chemoprobe for sensitive and selective recognitions of picric acid (PA) and Fe 3+ . Strong uorescence quenching phenomena of the IPC were observed in H 2 O/ACN (5/95, v/v) medium (λ em =408 nm) upon the additions of Fe 3+ or PA. The fabricated dual responsive IPC offered good selectivity and sensitivity with the low limit of detection values (0.92 µM for PA and 0.22 µM for Fe 3+ ) lower than the acceptable amounts of Fe 3+ and PA by the international o cial authorities. The interaction phenomena of IPC with PA and Fe 3+ based on the ndings of a range of experiments were considered and DFT computations were done to verify their recognition mechanisms. The sensing phenomena of IPC towards PA (1:1) and Fe 3+ (3:1) were con rmed by the MALDI TOF-MS, FT-IR, 1 H-NMR titration and Job's methods. Furthermore, the compound IPC was effectively applied as a uorescent sensor for Fe 3+ and PA detection in real natural spring water samples.

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A highly sensitive and selective “turn off” fluorescent sensor based on water soluble copper nanoclusters for morin and temperature sensing

Cited by 16 publications

References 56 publications

White Light Generation through l-Ascorbic Acid-Templated Thermoresponsive Copper Nanoclusters

White Light Generation through l-Ascorbic Acid-Templated Thermoresponsive Copper Nanoclusters

Green synthesis of fluorescent copper nanoclusters stabilized by epigallocatechin gallate and their applications as a novel troxerutin (trihydroxyethylrutin) and temperature sensor

Propylimidazole Functionalized Coumarin Derivative as Dual Responsive Fluorescent Chemoprobe for Picric Acid and Fe3+ Recognition: DFT and Natural Spring Water Applications

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