Dual-emission carbon dots-copper nanoclusters ratiometric photoluminescent nano-composites for highly sensitive and selective detection of Hg2+

Li, Zili; Pang, Shujie; Wang, Mao; Wu, Miao; Li, Pengjun; Bai, JInna; Yang, Xudong

doi:10.1016/j.ceramint.2021.03.143

Cited by 14 publications

(5 citation statements)

References 48 publications

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“…The LODs for Pb 2+ and Hg 2+ are 14.32 nM and 56.81 nM, respectively. In addition, the LODs of the proposed technique have lower values as compared to that of other reported methods for the detection of Pb 2+ and Hg 2+ ions [25][26][27][28][44][45][46][47][48][49][50][51][52][53][54] (Table I).…”

Section: Sensitivity Studymentioning

confidence: 84%

“…21–24 In view of this, CuO nanoparticles were successfully integrated with resonance Rayleigh scattering technique for assaying Hg 2+ ions. 25 Several reports have been demonstrated on the fabrication of Cu NCs with different capping agents such as bovine serum albumin (BSA), 26 metallothionein (MT), 27 and L -penicillamine. 28 Dual emission Cu NC–carbon dots (CDs) probe show the selective detection of Hg 2+ ion with a detection limit of 0.31 nM.…”

Section: Introductionmentioning

confidence: 99%

“…28 Dual emission Cu NC–carbon dots (CDs) probe show the selective detection of Hg 2+ ion with a detection limit of 0.31 nM. 26 Briefly, BSA–Au NCs and BSA–Cu NCs were used as dual-emissive ratiometric fluorescent probe for sensing of Hg 2+ ion with linear ranges of 0.06–1 μM and of 1–4 μM, respectively. 27 Similarly, MT–Cu NCs acted as colorimetric sensor for the determination of Pb 2+ and Hg 2+ ions, respectively.…”

Section: Introductionmentioning

confidence: 99%

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Microwave-Assisted Synthesis of Red Emitting Copper Nanoclusters Using Trypsin as a Ligand for Sensing of Pb²⁺ And Hg²⁺ Ions in Water and Tobacco Samples

et al. 2022

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In this work, a microwave assisted method was developed for synthesis of red fluorescent copper nanoclusters (NCs) using trypsin as a template (trypsin–Cu). The as-synthesized trypsin–Cu NCs are stable and water soluble, exhibiting fluorescence emission at 657 nm when excited at 490 nm. The as-prepared red-emitting trypsin–Cu NCs were characterized by using several analytical techniques such as ultraviolet–visible (UV–Vis) and fluorescence, fluorescence lifetime, Fourier transform infrared, and X-ray photoelectron spectroscopic techniques. Red-emitting trypsin–Cu NCs acted as a nanosensor for sensing both Pb2+ and Hg2+ ions through fluorescence quenching. Using this approach, good linearities are observed in the range of 0.1–25 and of 0.001–1 μM with the lower limit of detection of 14.63 and 56.81 nM for Pb2+ and Hg2+ ions, respectively. Trypsin–Cu NCs-based fluorescence assay was successfully applied to detect both Hg2+ and Pb2+ ions in water and tobacco samples.

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Section: Sensitivity Studymentioning

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Microwave-Assisted Synthesis of Red Emitting Copper Nanoclusters Using Trypsin as a Ligand for Sensing of Pb²⁺ And Hg²⁺ Ions in Water and Tobacco Samples

et al. 2022

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“…In fact, the surface modication over SCMBNPs by organic molecule and metals can be adjudged from its appearances. 28,29 The elemental mapping obviously exhibit that metals dispersed uniformly on the surface of naked SCMBNPs as shown in Fig. 4 https:// www.nature.com/articles/s41598-018-19551-3 -Fig.…”

Section: Structural Characterization Of Nanodendrimersmentioning

confidence: 98%

Synthesis and characterization of a lactose-based biosurfactant by a novel nanodendritic catalyst and evaluating its efficacy as an emulsifier in a food emulsion system

et al. 2022

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“…Both those two nanoclusters were prepared through a one-step hydrothermal method. And by simply mixing those two silver nanoclusters, a dual-emission fluorescent probe of silver nanoclusters was synthesized based on electrostatic self-assembly [49][50][51]. The as-prepared nanocomposite probe exhibits two emission peaks at 460 nm and 650 nm when it is excited by 370 nm.…”

Section: Synthesis and Characterization Of The Dual-emission Nanoprobementioning

confidence: 99%

Dual-emission fluorescent nanoprobe based on Ag nanoclusters for sensitive detection of Cu(II)

Chen

Bai

et al. 2022

Nanotechnology

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Noble metal nanoclusters have attracted much attention because of their excellent fluorescence properties. In this work, we demonstrated a dual-emission fluorescent nanocomposite based on silver nanoclusters. First, we synthesized positively charged His-AgNCs, which emits intense blue light, and then Ag nanoclusters with stable red emission were synthesized using DHLA as the ligand. Thus a dual-emission fluorescent nanoprobe was successfully obtained through electrostatic self-assembly, with the advantages of good water solubility, excellent stability and low toxicity. Based on the intensity ratio of the two emission peaks, the nanoprobe can be used for selective and sensitive detection of copper ions, and presents a good linear relationship within a certain concentration range. In addition, we also designed a polymer film, and our dual-emission nanoprobe was successfully loaded onto it, which means that the visual detection of copper ions is possible. This indicates that our dual-emission fluorescent nanoprobe has potential application prospects in environmental analysis, medical diagnosis, biological detection,etc.

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Dual-emission carbon dots-copper nanoclusters ratiometric photoluminescent nano-composites for highly sensitive and selective detection of Hg2+

Cited by 14 publications

References 48 publications

Microwave-Assisted Synthesis of Red Emitting Copper Nanoclusters Using Trypsin as a Ligand for Sensing of Pb²⁺ And Hg²⁺ Ions in Water and Tobacco Samples

Microwave-Assisted Synthesis of Red Emitting Copper Nanoclusters Using Trypsin as a Ligand for Sensing of Pb²⁺ And Hg²⁺ Ions in Water and Tobacco Samples

Synthesis and characterization of a lactose-based biosurfactant by a novel nanodendritic catalyst and evaluating its efficacy as an emulsifier in a food emulsion system

Dual-emission fluorescent nanoprobe based on Ag nanoclusters for sensitive detection of Cu(II)

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Dual-emission carbon dots-copper nanoclusters ratiometric photoluminescent nano-composites for highly sensitive and selective detection of Hg2+

Cited by 14 publications

References 48 publications

Microwave-Assisted Synthesis of Red Emitting Copper Nanoclusters Using Trypsin as a Ligand for Sensing of Pb2+ And Hg2+ Ions in Water and Tobacco Samples

Microwave-Assisted Synthesis of Red Emitting Copper Nanoclusters Using Trypsin as a Ligand for Sensing of Pb2+ And Hg2+ Ions in Water and Tobacco Samples

Synthesis and characterization of a lactose-based biosurfactant by a novel nanodendritic catalyst and evaluating its efficacy as an emulsifier in a food emulsion system

Dual-emission fluorescent nanoprobe based on Ag nanoclusters for sensitive detection of Cu(II)

Contact Info

Product

Resources

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Microwave-Assisted Synthesis of Red Emitting Copper Nanoclusters Using Trypsin as a Ligand for Sensing of Pb²⁺ And Hg²⁺ Ions in Water and Tobacco Samples

Microwave-Assisted Synthesis of Red Emitting Copper Nanoclusters Using Trypsin as a Ligand for Sensing of Pb²⁺ And Hg²⁺ Ions in Water and Tobacco Samples