A Schiff-Base Molecular Probe for Selective Fluorescence Sensing of Maleic Acid with Recognition of Maleic Acid in Food Additives and Cell Imaging

The 2,4-dinitrophenylhydrazine based Schiff base (L) acts as an effective fluorescence sensor for the selective detection of maleic acid. The detection limit of L towards maleic acid is observed to be 1.29 × 10 M. A 1:1 binding stoichiometry between L and maleic acid was obtained using Bensi-Hilderb...

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Bibliographic Details
Published in:Journal of fluorescence 2024-10
Main Authors: Mishra, Swagatika, Dash, Pragyan P, Mohanty, Patitapaban, Panda, Manasa K, Mohanty, Monalisa, Nanda, Prasant K, Behera, Santosh K, Sahoo, Suban K, Bhaskaran, Renjith, Jali, Bigyan Ranjan
Format: Article
Language:English
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Summary:The 2,4-dinitrophenylhydrazine based Schiff base (L) acts as an effective fluorescence sensor for the selective detection of maleic acid. The detection limit of L towards maleic acid is observed to be 1.29 × 10 M. A 1:1 binding stoichiometry between L and maleic acid was obtained using Bensi-Hilderbrand method. The binding constant (K ) was measured to be 5.17 × 10 M . The sensing behavior of L was confirmed through analysis using FT-IR, DLS and SEM analysis, alongside DFT calculations. Theoretical assessments clearly suggest that the L's mono-protonation and complexation in the solvent medium are the primary mechanisms in the sensing process. Additionally, L is used to imaging the maleic acid in living cells, demonstrating its potential biological uses. In addition, recognition of maleic acid in food additives was reported.
ISSN:1053-0509
1573-4994
1573-4994
DOI:10.1007/s10895-024-04015-x