One-step Synthesis of Highly Luminescent Nitrogen-doped Carbon Dots for Selective and Sensitive Detection of Mercury(II) Ions and Cellular Imaging

Liu, Ying; Liao, Mei‐Yi; He, Xueling; Liu, Xia; Kou, Xingming; Xiao, Dan

doi:10.2116/analsci.31.971

Cited by 29 publications

(15 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…8 Nanomaterials were also successively applied for Hg detection. Nitrogen-doped carbon dots made from citric acid with ammonia 9 or diethylenetriamine 10 was developed for the fluorometric detection of Hg 2+ in environmental water and imaging in living cells. Guan et al used thiol-functionalized poly vinyl alcohol capped CdS quantum dots with fluorescence quenching and achieved a detection limit of 1 nM.…”

Section: +mentioning

confidence: 99%

Mercury Sensing Probes

Ohira

2017

ANAL. SCI.

View full text Add to dashboard Cite

Section: +mentioning

confidence: 99%

Mercury Sensing Probes

Ohira

2017

ANAL. SCI.

View full text Add to dashboard Cite

“…prepared highly luminescent ionic liquid functionalized CQDs by a one‐step hydrothermal method, and found that it had a good linear response to Fe 3+ of different concentrations. Zhang et al . prepared a kind of La–CQDs multifunctional CQDs by hydrothermal method, which can be used as an effective fluorescent probe for quenching determination of Hg 2+ in aqueous solution.…”

Section: Introductionmentioning

confidence: 99%

Regulatory Preparation of N/S Doped Carbon Quantum Dots and Their Applications as Fe(III) Ion Sensors

et al. 2020

View full text Add to dashboard Cite

The nitrogen‐sulfur co‐doped fluorescent carbon quantum dots (N/S‐CQDs) were synthesized from sulfanilic acid. The fluorescence emission was independent of the excitation wavelength. In this experiment, the carbonization degree of the precursors was adjusted by solvent‐thermal method to affect the sp2 conjugated dimension of CQDs, thus affecting the fluorescence performance of CQDs. They are well dispersed in water and ethanol, and have high selectivity for Fe3+. The detection range is 0.025∼0.4 mmol/L, and the detection limit is about 2.549 μmol/L. The CQDs prepared in this experiment emit light indirectly through the surface defect state. When CQDs is illuminated by light, the carriers generated by photons will emit light at a very fast speed due to the surface defect state, so the excited electrons in CQDs can be easily transferred to Fe3+, making the surface of CQDs more complete, thus leading to the quenching of CQDs fluorescence.

show abstract

“…As a result, exploring effective, selective and sensitive analytical methods for detecting trace amount of Hg 2+ in biological systems and environment is extremely important. At present, various sensor platforms for detecting Hg 2+ ions have been developed by using nanomaterials of gold and silver, carbon dots, organic dye molecules, etc. As the NCs were widely applied to metal ion detection, we are wondering if the CuNCs can potentially serve as a fluorescent probe to detect Hg 2+ .…”

Section: Introductionmentioning

confidence: 99%

Glutathione‐stabilized Cu nanocluster‐based fluorescent probe for sensitive and selective detection of Hg²⁺ in water

et al. 2017

Self Cite

View full text Add to dashboard Cite

In this paper, an innovative and facile one-pot method for synthesizing water-soluble and stable fluorescent Cu nanoclusters (CuNCs), in which glutathione (GSH) served as protecting ligand and ascorbic acid (AA) as reducing agent was reported. The resultant CuNCs emitted blue-green fluorescence at 440 nm, with a quantum yield (QD) of about 3.08%. In addition, the prepared CuNCs exhibited excellent properties such as good water solubility, photostability and high stability toward high ionic strength. On the basis of the selective quenching of Hg on CuNCs fluorescence, which may be the result of Hg ion-induced aggregation of the CuNCs, the CuNCs was used for the selective and sensitive determination of Hg in aqueous solution. The proposed analytical strategy permitted detection of Hg in a linear range of 4 × 10 to 6 × 10 M, with a detection limit of 2.2 × 10 M. Eventually, the practicability of this sensing approach was confirmed by its successful application to assay Hg in tap water, Lotus lake water and river water samples with the quantitative spike recoveries ranging from 96.9% to 105.4%.

show abstract

One-step Synthesis of Highly Luminescent Nitrogen-doped Carbon Dots for Selective and Sensitive Detection of Mercury(II) Ions and Cellular Imaging

Cited by 29 publications

References 46 publications

Mercury Sensing Probes

Mercury Sensing Probes

Regulatory Preparation of N/S Doped Carbon Quantum Dots and Their Applications as Fe(III) Ion Sensors

Glutathione‐stabilized Cu nanocluster‐based fluorescent probe for sensitive and selective detection of Hg²⁺ in water

Contact Info

Product

Resources

About

One-step Synthesis of Highly Luminescent Nitrogen-doped Carbon Dots for Selective and Sensitive Detection of Mercury(II) Ions and Cellular Imaging

Cited by 29 publications

References 46 publications

Mercury Sensing Probes

Mercury Sensing Probes

Regulatory Preparation of N/S Doped Carbon Quantum Dots and Their Applications as Fe(III) Ion Sensors

Glutathione‐stabilized Cu nanocluster‐based fluorescent probe for sensitive and selective detection of Hg2+ in water

Contact Info

Product

Resources

About

Glutathione‐stabilized Cu nanocluster‐based fluorescent probe for sensitive and selective detection of Hg²⁺ in water