AI Article Synopsis
- This study explores the use of carbon dots modified NaYF:Yb, Er nanoparticles as a fluorescent nanoprobe for detecting iron (Fe) concentrations.
- It successfully quantifies Fe levels ranging from 5-80 μmol L through fluorescence quenching at specific wavelengths when excited by light.
- The created nanoprobe exhibits strong anti-interference, good fluorescence stability, and effectiveness in analyzing real samples, making it a promising tool for simultaneous Fe detection.
Article Abstract
In this study, the application of carbon dots (CDs) modified NaYF:Yb, Er nanoparticles (UCNPs@CDs) as the fluorescent nanoprobe for simultaneous detection of Fe and Fe was investigated. Fe quantification (5-80 μmol L) was achieved, as a result of Fe induced fluorescence quenching of UCNPs@CDs at 434 nm (under the 336 nm excitation). The chelate (Fe-phen) formed by Fe and 1,10-phenanthroline had a broad absorption centered at 510 nm, due to inner filter effect (IFE), Fe quantification (4-120 μmol L) was achieved as a result of (Fe-phen) induced fluorescence quenching of UCNPs@CDs at 545 nm (under the 980 nm excitation). The resultant UCNPs@CDs probe, with excellent anti-interference capability, favorable fluorescence stability, and convincing performance in real sample analysis, showed promising application in simultaneous detection of Fe and Fe.
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| http://dx.doi.org/10.1016/j.aca.2021.338973 | DOI Listing |
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