Silver nanoclusters functionalized with Ce(III) ions are a viable “turn-on-off” fluorescent probe for sulfide

Jinshui Liu; Huijuan Bao; Dik Lung Ma; Chung Hang Leung

doi:10.1007/s00604-018-3149-z

Silver nanoclusters functionalized with Ce(III) ions are a viable “turn-on-off” fluorescent probe for sulfide

Jinshui Liu^*, Huijuan Bao, Dik Lung Ma, Chung Hang Leung

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

25 Citations (Scopus)

Abstract

The authors show that silver nanoclusters functionalized with Ce(III) ions are a viable fluorescent probe for selective and sensitive detection of sulfide at pH 7.0. The blue fluorescence of silver nanoclusters (with excitation/emission peaks at 358/426 nm) is enhanced on the addition of Ce(III) ions but is quenched in the presence of a trace concentrations of sulfide. A fluorometric assay was worked out using the Ce(III)/AgNCs as the probe. Sulfide can be detected in concentrations up to 2.0 μM, and the detection limit is 15 nM. The method was successfully applied to the determination of sulfide in spiked real samples. [Figure not available: see fulltext.]

Original language	English
Article number	16
Journal	Microchimica Acta
Volume	186
Issue number	1
DOIs	https://doi.org/10.1007/s00604-018-3149-z
Publication status	Published - 1 Jan 2019

Scopus Subject Areas

Analytical Chemistry

User-Defined Keywords

Etching method
Fluorescence
Fluorescence quenching
Glutathione
Nanoclusters
Nanomaterial
Sulfide probe

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10.1007/s00604-018-3149-z

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title = "Silver nanoclusters functionalized with Ce(III) ions are a viable “turn-on-off” fluorescent probe for sulfide",

abstract = "The authors show that silver nanoclusters functionalized with Ce(III) ions are a viable fluorescent probe for selective and sensitive detection of sulfide at pH 7.0. The blue fluorescence of silver nanoclusters (with excitation/emission peaks at 358/426 nm) is enhanced on the addition of Ce(III) ions but is quenched in the presence of a trace concentrations of sulfide. A fluorometric assay was worked out using the Ce(III)/AgNCs as the probe. Sulfide can be detected in concentrations up to 2.0 μM, and the detection limit is 15 nM. The method was successfully applied to the determination of sulfide in spiked real samples. [Figure not available: see fulltext.]",

keywords = "Etching method, Fluorescence, Fluorescence quenching, Glutathione, Nanoclusters, Nanomaterial, Sulfide probe",

author = "Jinshui Liu and Huijuan Bao and Ma, {Dik Lung} and Leung, {Chung Hang}",

note = "Funding Information: Fig. 4 Fluorescence intensities of the Ce(III)/AgNCs complex in the presence of sulfide ions (1.0 μM) or Cl−, Br− (20 μM) and other interfering species (100 μM) Acknowledgements This work was supported by the Natural Science Foundation of Anhui Province, China (1708085 MB48) and the National Natural Science Foundation of China (21205002).",

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doi = "10.1007/s00604-018-3149-z",

language = "English",

volume = "186",

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T1 - Silver nanoclusters functionalized with Ce(III) ions are a viable “turn-on-off” fluorescent probe for sulfide

AU - Liu, Jinshui

AU - Bao, Huijuan

AU - Ma, Dik Lung

AU - Leung, Chung Hang

N1 - Funding Information: Fig. 4 Fluorescence intensities of the Ce(III)/AgNCs complex in the presence of sulfide ions (1.0 μM) or Cl−, Br− (20 μM) and other interfering species (100 μM) Acknowledgements This work was supported by the Natural Science Foundation of Anhui Province, China (1708085 MB48) and the National Natural Science Foundation of China (21205002).

PY - 2019/1/1

Y1 - 2019/1/1

N2 - The authors show that silver nanoclusters functionalized with Ce(III) ions are a viable fluorescent probe for selective and sensitive detection of sulfide at pH 7.0. The blue fluorescence of silver nanoclusters (with excitation/emission peaks at 358/426 nm) is enhanced on the addition of Ce(III) ions but is quenched in the presence of a trace concentrations of sulfide. A fluorometric assay was worked out using the Ce(III)/AgNCs as the probe. Sulfide can be detected in concentrations up to 2.0 μM, and the detection limit is 15 nM. The method was successfully applied to the determination of sulfide in spiked real samples. [Figure not available: see fulltext.]

AB - The authors show that silver nanoclusters functionalized with Ce(III) ions are a viable fluorescent probe for selective and sensitive detection of sulfide at pH 7.0. The blue fluorescence of silver nanoclusters (with excitation/emission peaks at 358/426 nm) is enhanced on the addition of Ce(III) ions but is quenched in the presence of a trace concentrations of sulfide. A fluorometric assay was worked out using the Ce(III)/AgNCs as the probe. Sulfide can be detected in concentrations up to 2.0 μM, and the detection limit is 15 nM. The method was successfully applied to the determination of sulfide in spiked real samples. [Figure not available: see fulltext.]

KW - Etching method

KW - Fluorescence

KW - Fluorescence quenching

KW - Glutathione

KW - Nanoclusters

KW - Nanomaterial

KW - Sulfide probe

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DO - 10.1007/s00604-018-3149-z

M3 - Journal article

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AN - SCOPUS:85058594151

SN - 0026-3672

VL - 186

JO - Microchimica Acta

JF - Microchimica Acta

IS - 1

M1 - 16

ER -

Silver nanoclusters functionalized with Ce(III) ions are a viable “turn-on-off” fluorescent probe for sulfide

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