Selective turn-on fluorescence sensing of Fe 2+ in real water samples by chalcones.

Autor: Prajapati S; Department of Chemistry, Indira Gandhi National Tribal University (Central University), Amarkantak, M.P. Pin-484887, India., Sinha P; Department of Chemistry, Indira Gandhi National Tribal University (Central University), Amarkantak, M.P. Pin-484887, India., Hindore S; Department of Chemistry, Indira Gandhi National Tribal University (Central University), Amarkantak, M.P. Pin-484887, India., Jana S; Department of Chemistry, Indira Gandhi National Tribal University (Central University), Amarkantak, M.P. Pin-484887, India. Electronic address: jana.s.oc@gmail.com.
Jazyk: angličtina
Zdroj: Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy [Spectrochim Acta A Mol Biomol Spectrosc] 2023 Feb 15; Vol. 287 (Pt 2), pp. 122107. Date of Electronic Publication: 2022 Nov 11.
DOI: 10.1016/j.saa.2022.122107
Abstrakt: The design of fluorescence sensor for selective detection of Fe 2+ is very important as it is part of different biochemical redox system related to a number of diseases. In many occasion sensors are unable to distinguish Fe 2+ from Fe 3+ ions. In the present work, we report simple chalcone type sensors for sensing Fe 2+ ions in semi aqueous system. The receptors R1 and R2 have showed excellent sensing properties at pH 7 in CH 3 OH-H 2 O (1:1, v/v) solvent system. The fluorescence emission intensity of the complexes between hosts and Fe 2+ is least affected by the other competitive metal ions leading to the formation of very tight host-guest complex. The LOD for the R1 and R2 for Fe 2+ are 1.91 μM and 3.54 μM respectively, which is quite low in compared to the many other reported sensors. The practical applicability of these sensors is determined by the detection of Fe 2+ in real water samples. So chalcones would be cost effective PET inhibited fluorescence sensor for Fe 2+ .
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2022 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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