Oct 2026· Luminescence (Chichester, England Print)· Vol 41· 0 citations· 50 references
Medicine
Abstract
Here, we report the design and synthesis of a new bicyclic compound 6, annulated with benzene and the 8‐hydroxyquinoline fluorophore. The probe exhibits a moderate aggregation‐induced emission (AIE) behavior upon the addition of water up to 17%. Furthermore, the probe exhibits a highly selective fluorescence turn‐off response toward Fe3+ and Hg2+ ions in a DMSO/H2O (83:17, v/v) solution over a range of other competitive metal ions. The probe displayed low detection limits of 3.69 μM for Fe3+ and 6.08 μM Hg2+. Probe 6 shows a fast recognition time of ions and can monitor Fe3+ and Hg2+ ions in real time. The sensing mechanism is thoroughly investigated by time‐dependent 1H NMR studies, which indicate coordination interactions between the quinoline framework and the metal ions. The probe demonstrates high sensitivity and dual‐selectivity toward metal ion sensing, making it a valuable tool for monitoring the environment.
Developing an Aggregation-Induced Emission Enhancement (AIEE) type probe with enhanced emission through metal ion-induced methods has been a significant challenge. In this work, we synthesized an AIEE fluorescent chemosensor P1 via a Schiff base reaction by 8-hydroxyquinoline-2-carbaldehyde and 2,4-difluorophenylhydraz...
Mei Yu, Na-Na Mu, Qing-Yi He et al.· Journal of Fluorescence· 0 citations
A new fluorescent probe based on fluorophores methylene blue and 1,8-naphthalimide is designed, synthesized, and utilized for the specific detection of Cu2+ ions in physiological conditions demonstrating that MB-M is a promising fluorescent probe for Cu2+ ions ion detection.
S. M. Gomha, Wajeeha Zareen, Mostafa A. Ismail et al.· Spectrochimica Acta Part A -...· 0 citations
BONR, a newly developed fluorescent probe, was prepared through the fusion of bisphenol A, dicyanoisophorone, and Rhodamine ethylenediamine. This probe enables the specific detection of Fe3+ ions, resulting in a synergistic enhancement of both its spectral properties and practical application. In an EtOH/HEPES (1:1, v/...
Yi-Han Yang, Feng-Jun Yan, Xiao-Xia Cheng et al.· Spectrochimica Acta Part A -...· 0 citations
An efficient coumarin-based fluorescent probe, HCPD, was synthesized via condensation of 7-diethylamino-4-hydroxycoumarin aldehyde with o-phenylenediamine. The structure of the probe was confirmed by FT-IR, NMR and HRMS studies. The probe, HCPD exhibited aggregation-induced emission (AIE) characteristics in a THF-water...
5-(4-Chlorophenoxy)-3-methyl-1-phenyl-1H-pyrazole-4-carbaldehyde (PYA), a pyrazole-based fluorescent chemosensor, was synthesised and studied for the selective detection of Co2+ ions. With exceptional selectivity over other metal ions that are relevant to biology and the environment, the sensor displays a clear “turn-o...
A. R. Nesaragi, Jyoti Nagalik, Thakur Gurjeet Singh et al.· RSC Advances· 0 citations
A novel, readily synthesizable boranil-based chemosensor, HSR, was structurally and spectroscopically characterized by single-crystal X-ray diffraction, IR spectroscopy, 1H, 13C, and 11B NMR spectroscopy, and high-resolution mass spectrometry (HRMS). HSR exhibited highly selective colorimetric and fluorescence response...
