Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5400157 | Journal of Luminescence | 2014 | 5 Pages |
Abstract
The sensors have been developed using silver nanoparticles coated with organic ligands and are fully characterized with spectroscopic methods. The energy-dispersive X-ray (EDX) analysis revealed the presence of organic receptors on the surface of metal nanoparticles. These chemosensors were tested against a range of biological and environmentally relevant cations in the HEPES buffered DMSO/H2O (8:2, v/v) solvent system. The fluorescence intensity of these chemosensors was quenched upon coordination with open shell metal ions such as Cu2+/Fe3+. Anion recognition properties of the corresponding metal complexes have been studied and the original fluorescence intensity of sensors was restored upon addition of phosphate (0-20 µM). Thus, a highly selective chemosensor has been devised for the micromolar estimation of phosphate in semi-aqueous medium.
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Authors
Navneet Kaur, Simanpreet Kaur, Amanpreet Kaur, Preeti Saluja, Hemant Sharma, Anu Saini, Nisha Dhariwal, Ajnesh Singh, Narinder Singh,