A simple pyrene-based "turn-on" chemosensor bearing isonizide namely 3-(pyren-1-yl methylene) pentane-2,4-diyldene di(isonicotinohydrazide) (PMPD) was designed and synthesized for detecting Feand Fe ions in HEPES buffer solution at pH 7.4 (DMSO: HO (1:9 v/v)) medium. The probe shows conducive selectivity for Fe and Fe ions over the other competitive metal cations. The detection limit was found to be 1.67 μM for Fe and 2.02 μM for Fe. The recognition mechanism of PMPD towards Fe and Fe has been examined in detail by absorption, emission, and ESI-MS studies. Moreover, "turn-on" fluorescence behavior of the probe was used to track iron ions in living cells.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s10895-019-02392-2 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Remarkable increase in electrochemiluminescence of isomeric bipyridine-based covalent organic frameworks via regulating the direction of imine linkage for sensing application.
J Colloid Interface Sci
January 2025
College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China. Electronic address:
Covalent organic frameworks (COFs) with highly ordered structures and predictable optoelectronic properties provide an ideal platform to investigate the electrochemiluminescence (ECL) performance based on organic materials by atomically varying the molecular construction. Herein, the effect of imine-bond orientation on the ECL performance of COFs is investigated. We report two COFs (NC-COF and CN-COF) with different orientations of imine bonds using pyrene donor units (D) and bipyridine acceptor motifs (A) monomers.
View Article and Find Full Text PDFPyrene functionalized organic cation receptor-based "turn-on" fluorescence approach for monitoring of chlorpyrifos in food, soil, and water samples.
Anal Chim Acta
January 2025
Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab, 140001, India. Electronic address:
Background: The unregulated use of pesticides by farmers, for crop productivity results in widespread contamination of organophosphates in real environmental samples, which is a growing societal concern about their potential health effects. The conventional approaches for the monitoring these organophosphate-based pesticides which include immunoassays, electrochemical methods, immunosensors, various chromatography techniques, along with some spectroscopic methods, are either costly, sophisticated, or involves the use of different metal complexes. Therefore, there is an urgent need for sensitive, quick, and easy-to-use detection techniques for the screening of widely used organophosphate-based pesticides.
View Article and Find Full Text PDFRationalizing Photophysics of Co(III) Complexes with Pendant Pyrene Moieties.
Inorg Chem
January 2025
Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada.
Pendant organic chromophores have been used to improve the photocatalytic performance of many metal-based photosensitizers, particularly in first-row metals, by increasing π conjugation in ligands and lowering the energy of the photoactive absorption band. Using a combination of spectroscopic studies and computational modeling, we rationalize the excited state dynamics of a Co(III) complex containing pendant pyrene moieties, , where = 1,1'-(4-(pyren-1-yl)pyridine-2,6-diyl)bis(3-methyl-1-imidazol-3-ium). displays higher visible absorptivity, and blue luminescence from pyrene singlet excited states compared with [ = 1,1'-(pyridine-2,6-diyl)bis(3-methyl-1-imidazol-3-ium)] in which the pyrene moiety is absent.
View Article and Find Full Text PDFA novel immobilized bacteria consortium enhanced remediation efficiency of PAHs in soil: Insights into key removal mechanism and main driving factor.
J Hazard Mater
January 2025
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China. Electronic address:
The remediation of sites co-contaminated with polycyclic aromatic hydrocarbons (PAHs) and heavy metals (HMs) poses challenges for efficient and ecofriendly restoration methods. In this study, three strains (Pseudomonas sp. PDC-1, Rhodococcus sp.
View Article and Find Full Text PDFPhoto-Controllable Förster Resonance Energy Transfer Based on Dynamic Chiral Self-Assembly of Sequence-Defined Amphiphilic Alternating Azopeptoids.
Small
January 2025
Shanghai Key Laboratory of Advanced Polymeric Materials, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China.
Endowing biomimetic sequence-controlled polymers with chiral functionality to construct stimuli-responsive chiral materials offers a promising approach for innovative chiroptical switch, but it remains challenging. Herein, it is reported that the self-assembly of sequence-defined chiral amphiphilic alternating azopeptoids to generate photo-responsive and ultrathin bilayer peptoidosomes with a vesicular thickness of ≈1.50 nm and a diameter of around ≈290 nm.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!