ArticleSensors (Basel, Switzerland)2018
Methionine-Capped Gold Nanoclusters as a Fluorescence-Enhanced Probe for Cadmium(II) Sensing.
Article in Sensors (Basel, Switzerland), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Interactions of coinage metal nanoclusters with low-molecular-weight biocompounds.Biophysical reviews · 2024Review
- From synthesis to applications of biomolecule-protected luminescent gold nanoclusters.Analytical and bioanalytical chemistry · 2024Review
- Synthesis and Application of a Near-Infrared Light-Emitting Fluorescent Probe for Specific Imaging of Cancer Cells with High Sensitivity and Selectivity.Drug design, development and therapy · 2024Article
- Research Progress on Up-Conversion Fluorescence Probe for Detection of Perfluorooctanoic Acid in Water Treatment.Polymers · 2023Review
- Machine learning-based sensor array: full and reduced fluorescence data for versatile analyte detection based on gold nanocluster as a single probe.Analytical and bioanalytical chemistry · 2022Article
- Machine learning-based sensor array: full and reduced fluorescence data for versatile analyte detection based on gold nanocluster as a single probe.Analytical and bioanalytical chemistry · 2022Article
- Metal Nanostructures for Environmental Pollutant Detection Based on Fluorescence.Nanomaterials (Basel, Switzerland) · 2021Review
- Water Soluble Porphyrin for the Fluorescent Determination of Cadmium Ions.Journal of fluorescence · 2020Article
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Authors and funding
5 authors.
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Abstract
Gold nanoclusters (Au NCs) have been considered as novel heavy metal ions sensors due to their ultrafine size, photo-stability and excellent fluorescent properties. In this study, a green and facile method was developed for the preparation of fluorescent water-soluble gold nanoclusters with methionine as a stabilizer. The nanoclusters emit orange fluorescence with excitation/emission peaks at 420/565 nm and a quantum yield of about 1.46%. The fluorescence of the Au NCs is selectively and sensitively enhanced by addition of Cd(II) ions attributed to the Cd(II) ion-induced aggregation of nanoclusters. This finding was further used to design a fluorometric method for the determination of Cd(II) ions, which had a linear response in the concentration range from 50 nM to 35 μM and a detection limit of 12.25 nM. The practicality of the nanoprobe was validated in various environmental water samples and milk powder samples, with a fairly satisfactory recovery percent.
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