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Glutathione Modified silicon-doped Carbon Quantum dots as a Sensitive Fluorescent Probe for ClO− Detection.
- Source :
-
Journal of Fluorescence . Jun2024, p1-10. - Publication Year :
- 2024
-
Abstract
- A selective and sensitive fluorescence method for hypochlorite (ClO−) was designed using glutathione (GSH) modified silicon-doped carbon quantum dots (GSH@Si-CDs). Then a dual emission ratio fluorescence probe (RF-probe) was obtained based on carbodiimide-activated coupling reaction between GSH and Si-CDs. i.e., when the excitation wavelength was kept at 360 nm, the GSH@Si-CDs exhibited strong blue and weak yellow fluorescence at 430 and 580 nm. Meanwhile, the fluorescence of GSH@Si-CDs could be selectively quenched at 430 nm and enhanced at 580 nm in the presence of ClO−, and corresponding limit of detection (LOD) and linear range were measured to be 0.35 µM and 1.0-33.3 µM. The sensing mechanism of the system was also investigated in detail. Moreover, the RF-probe with good accuracy was successfully employed to monitor ClO− in real samples with satisfactory results compared to the standard iodometric method. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10530509
- Database :
- Academic Search Index
- Journal :
- Journal of Fluorescence
- Publication Type :
- Academic Journal
- Accession number :
- 177792603
- Full Text :
- https://doi.org/10.1007/s10895-024-03797-4