A Novel Cobalt-Sensitive Fluorescent Chemosensor Based on Ligand Capped Cds Quantum Dots

A Novel Cobalt-Sensitive Fluorescent Chemosensor Based on Ligand Capped Cds Quantum Dots Publisher Pubmed

Faridbod F^{1, 2} ; Jamali A¹ ; Ganjali MR^{1, 2} ; Hosseini M³ ; Norouzi P^{1, 2}

Show Affiliations

1. Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran, Iran
2. Biosensor Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
3. Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran

Source: Journal of Fluorescence Published:2015

Abstract

In this work, a ligand capped CdS QDs was synthesized, characterized and its fluorescence behavior was studied. The surface of the CdS QDs was modified using N-(3-methyl-2-(thiophene-2-carboxamido) phenyl) thiophene-2-carboxamide. The immobilized ligand on the surface of the CdS QDs can interact by cationic species due to the existence of donating atoms in its structures. Thus, effect of some metal cations on the fluorescent intensity of the ligand capped CdS QDs were studied. It was found that fluorescence intensity of the modified CdS QDs quenched selectively by addition of Co(II) ion in comparison with other cations tested. The ligand capped CdS QDs can be used as a fluorescent bulk chemosensor for detection of Co(II) ions. The fluorescent quenching is linear in the range of 1.0 × 10-5 to 1.5 × 10-4 mol L-1 of Co(II) ions. The limit of detection was obtained 8.3 × 10-7 mol L-1. The nanosensor exhibits high selectivity toward Co(II) ions in comparison with common metal ions. © 2015 Springer Science+Business Media New York.

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Style	Citing Format
MLA	Faridbod F, et al.. "A Novel Cobalt-Sensitive Fluorescent Chemosensor Based on Ligand Capped Cds Quantum Dots." Journal of Fluorescence, vol. 25, no. 3, 2015, pp. 613-619.
APA	Faridbod F, Jamali A, Ganjali MR, Hosseini M, Norouzi P (2015). A Novel Cobalt-Sensitive Fluorescent Chemosensor Based on Ligand Capped Cds Quantum Dots. Journal of Fluorescence, 25(3), 613-619.
Chicago	Faridbod F, Jamali A, Ganjali MR, Hosseini M, Norouzi P. "A Novel Cobalt-Sensitive Fluorescent Chemosensor Based on Ligand Capped Cds Quantum Dots." Journal of Fluorescence 25, no. 3 (2015): 613-619.
Harvard	Faridbod F et al. (2015) 'A Novel Cobalt-Sensitive Fluorescent Chemosensor Based on Ligand Capped Cds Quantum Dots', Journal of Fluorescence, 25(3), pp. 613-619.
Vancouver	Faridbod F, Jamali A, Ganjali MR, Hosseini M, Norouzi P. A Novel Cobalt-Sensitive Fluorescent Chemosensor Based on Ligand Capped Cds Quantum Dots. Journal of Fluorescence. 2015;25(3):613-619.
BibTex	@article{ author = {Faridbod F and Jamali A and Ganjali MR and Hosseini M and Norouzi P}, title = {A Novel Cobalt-Sensitive Fluorescent Chemosensor Based on Ligand Capped Cds Quantum Dots}, journal = {Journal of Fluorescence}, volume = {25}, number = {3}, pages = {613-619}, year = {2015} }
RIS	TY - JOUR AU - Faridbod F AU - Jamali A AU - Ganjali MR AU - Hosseini M AU - Norouzi P TI - A Novel Cobalt-Sensitive Fluorescent Chemosensor Based on Ligand Capped Cds Quantum Dots JO - Journal of Fluorescence VL - 25 IS - 3 SP - 613 EP - 619 PY - 2015 ER -

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