Wavelength specific aggregation induced emission in aqueous media permits selective detection of Ag + and Hg 2+ ions.

Autor: Janakipriya S; Organic and Bioorganic Chemistry Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India., Divya D; Organic and Bioorganic Chemistry Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India; Department of Chemistry, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Avadi, Chennai 600062, India. Electronic address: divyadhakshinamurthy@gmail.com., Mala R; Organic and Bioorganic Chemistry Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India., Nandhagopal M; Saveetha Medical College and Hospital, Institute of Medical and Technical Science, Thandalam, Chennai 602105, Tamil Nadu, India., Thennarasu S; Organic and Bioorganic Chemistry Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India. Electronic address: thennarasu@gmail.com.
Jazyk: angličtina
Zdroj: Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy [Spectrochim Acta A Mol Biomol Spectrosc] 2024 Sep 05; Vol. 325, pp. 125085. Date of Electronic Publication: 2024 Sep 05.
DOI: 10.1016/j.saa.2024.125085
Abstrakt: A new 1,8-naphthalimide derivative (probe 1) adopts V-shaped structure, emits fluorescence and displays the Mie effect and aggregation-induced emission (AIE). Selective interactions of thiophilic Ag + and Hg 2+ ions (10 µM) with 1 (10 µM) resulted in AIEs at 499 and 521 nm, respectively. Both Ag + and Hg 2+ induce the formation of 1:2 complexes with 1, leading to the formation of AIE active aggregates with an average size of 423 and 198 nm, respectively. The formation of crystalline needles with Ag + and spherical aggregates with Hg 2+ results in wavelength specific AIE that permits the naked-eye and fluorometric detection of Ag + and Hg 2+ ions. Probe 1 shows excellent selectivity toward Ag + and Hg 2+ among various metal ions, therefore, 1 is suitable for the selective and quantitative detection of Ag + and Hg 2+ ions. Job plots are used for the determination of the stoichiometry of the complexes formed. It is evident from the fluorescence images of probe 1 in Rhizoctonia oryzae mycelia cells that they can be employed as potential candidates for in-vitro bioimaging.
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 © 2024 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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