Publications by authors named "Kimia Kermanshahian"
Highly fluorescent CdTe/ZnSe quantum dot-based "turn-off" sensor for the on-site rapid detection of Lead ions in aqueous medium.
Spectrochim Acta A Mol Biomol Spectrosc
January 2025
Article Synopsis
- Lead (Pb) is a toxic heavy metal that poses health and environmental risks, increasing the need for efficient detection methods.
- A new photochemical approach was developed to create thioglycolic acid-stabilized CdTe/ZnSe quantum dots that fluoresce green and are highly sensitive to Pb ions, enabling the creation of a simple on-site sensor.
- This sensor can accurately detect Pb in various water samples with a detection limit of 31.8 nM, demonstrating effective performance in real-world conditions and potential for environmental monitoring.
Mercury (Hg), a notorious heavy metal with detrimental impacts on human health and the environment, necessitates the development of precise measurement methods. This study introduces an expeditious and straightforward photochemical approach to synthesize thioglycolic acid (TGA)-stabilized CdTe/CdS/ZnS core/multi-shell quantum dots (QDs). The synthesized CdTe/CdS/ZnS QDs were comprehensively characterized using fluorescence spectroscopy, transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDS), Field Emission Scanning Electron Microscopy (FESEM), and X-Ray diffraction (XRD).
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