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Hamukoshi S, Mama N, Schoeman S, Uahengo V. A facile synthesis of a novel 4-hydroxyl-3-azo coumarin based colorimetric probes for detecting Hg 2+ and a fluorescence turn-off response of 3CBD to Fe 3+ in aqueous environment. RSC Adv 2023; 13:31541-31553. [PMID: 37908657 PMCID: PMC10614206 DOI: 10.1039/d3ra04047j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 10/23/2023] [Indexed: 11/02/2023] Open
Abstract
Two azo dyes, (E)-3-(benzo[d]thiazol-2-yldiazenyl)-4-hydroxy-2H-chromen-2-one (3CBD) and (E)-4-hydroxy-3-(quinolin-2-yldiazenyl)-2H-chromen-2-one (3CQD), were designed and synthesized using facile methods. The structures were validated through FTIR and NMR spectroscopy. The photophysical property analyses were further studied using UV-Vis and fluorescence spectrophotometers. Consequently, the absorption and emission spectra of 3CBD confirmed its selectivity of Hg2+ and turn-off response to Fe3+. On the other hand, the absorption spectra analysis of 3CQD demonstrated selectivity in the presence of Hg2+. The colorimetric investigations demonstrated a significant visual response specifically for Hg2+, enabling real-time analysis in the corresponding solutions. The presence of other coexisting metal ions does not interfere with the detection of the target metal ion. The fluorescence studies of the two probes revealed that 3CBD was highly fluorescent, which was significantly quenched by Fe3+, upon excitation at 340 nm. Utilizing Job plot analyses, it was determined that the complexes 3CBD-Hg2+ and 3CQD-Hg2+ exhibit a binding stoichiometry of 1 : 1. The association constants for these complexes were measured to be 7.48 × 105 and 9.12 × 105 M-1, respectively, indicating a strong association between both probes and their respective metal ions. Both chemosensors exhibited comparable limits of detection (LOD) and limits of quantification (LOQ) of 0.03 μM and 0.10 μM, respectively. Reversible studies confirmed that only chemosensor 3CQD could serve as a secondary sensor for EDTA. The theoretical studies calculated using Density Functional Theory (DFT) program at B3LYP/6-31G** (Spartan '10 package) level.
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Affiliation(s)
- Simeon Hamukoshi
- Department of Chemistry, Faculty of Science, Nelson Mandela University Port Elizabeth South Africa +264 61 206 3465
| | - Neliswa Mama
- Department of Chemistry, Faculty of Science, Nelson Mandela University Port Elizabeth South Africa +264 61 206 3465
| | - Stiaan Schoeman
- Department of Chemistry, Faculty of Science, Nelson Mandela University Port Elizabeth South Africa +264 61 206 3465
| | - Veikko Uahengo
- Department of Physics, Chemistry and Materials Science, Faculty of Agriculture, Engineering and Natural Sciences, University of Namibia Windhoek Namibia
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Liu H, Ding S, Lu Q, Jian Y, Wei G, Yuan Z. a Versatile Schiff Base Chemosensor for the Determination of Trace Co 2+, Ni 2+, Cu 2+, and Zn 2+ in the Water and Its Bioimaging Applications. ACS OMEGA 2022; 7:7585-7594. [PMID: 35284732 PMCID: PMC8908528 DOI: 10.1021/acsomega.1c05960] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 01/31/2022] [Indexed: 06/14/2023]
Abstract
In this work, a simple and versatile Schiff base chemosensor (L) was developed for the detection of four adjacent row 4 metal ions (Co2+, Ni2+, Cu2+, and Zn2+) through colorimetric or fluorescent analyses. L could recognize the target ions in solutions containing a wide range of other cations and anions. The recognition mechanisms were verified with a Job's plot, HR-MS assays, and 1H NMR titration experiments. Then, L was employed to develop colorimetric test strips and TLC plates for Co2+. Meanwhile, L was capable of quantitatively measuring the amount of target ions in tap water and river water samples. Notably, L was used for imaging Zn2+ in HepG2 cells, zebrafish, and tumor-bearing mice, which demonstrated its potential biological applications. Therefore, L can probably serve as a versatile tool for the detection of the target metal ions in environmental and biological applications.
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Affiliation(s)
- Hongmei Liu
- Key
Laboratory of Basic Pharmacology of Ministry of Education and Joint
International Research Laboratory of Ethnomedicine of Ministry of
Education, Zunyi, Guizhou Province 563000, China
- School
of Pharmacy, Zunyi Medical University, Zunyi, Guizhou Province 563000, China
- Guizhou
International Scientific and Technological Cooperation Base for Medical
Photo-Theranostics Technology and Innovative Drug Development, Zunyi, Guizhou Province 563000, China
- Key
Laboratory of Biocatalysis and Chiral Drug Synthesis of Guizhou Province, Zunyi, Guizhou Province 563000, China
- Generic
Drug Research Center of Guizhou Province, Zunyi, Guizhou Province 563000, China
| | - Shangli Ding
- Key
Laboratory of Basic Pharmacology of Ministry of Education and Joint
International Research Laboratory of Ethnomedicine of Ministry of
Education, Zunyi, Guizhou Province 563000, China
- School
of Pharmacy, Zunyi Medical University, Zunyi, Guizhou Province 563000, China
- Guizhou
International Scientific and Technological Cooperation Base for Medical
Photo-Theranostics Technology and Innovative Drug Development, Zunyi, Guizhou Province 563000, China
- Key
Laboratory of Biocatalysis and Chiral Drug Synthesis of Guizhou Province, Zunyi, Guizhou Province 563000, China
- Generic
Drug Research Center of Guizhou Province, Zunyi, Guizhou Province 563000, China
| | - Quan Lu
- Key
Laboratory of Basic Pharmacology of Ministry of Education and Joint
International Research Laboratory of Ethnomedicine of Ministry of
Education, Zunyi, Guizhou Province 563000, China
- School
of Pharmacy, Zunyi Medical University, Zunyi, Guizhou Province 563000, China
- Guizhou
International Scientific and Technological Cooperation Base for Medical
Photo-Theranostics Technology and Innovative Drug Development, Zunyi, Guizhou Province 563000, China
- Key
Laboratory of Biocatalysis and Chiral Drug Synthesis of Guizhou Province, Zunyi, Guizhou Province 563000, China
- Generic
Drug Research Center of Guizhou Province, Zunyi, Guizhou Province 563000, China
| | - Yue Jian
- Key
Laboratory of Basic Pharmacology of Ministry of Education and Joint
International Research Laboratory of Ethnomedicine of Ministry of
Education, Zunyi, Guizhou Province 563000, China
- School
of Pharmacy, Zunyi Medical University, Zunyi, Guizhou Province 563000, China
- Guizhou
International Scientific and Technological Cooperation Base for Medical
Photo-Theranostics Technology and Innovative Drug Development, Zunyi, Guizhou Province 563000, China
- Key
Laboratory of Biocatalysis and Chiral Drug Synthesis of Guizhou Province, Zunyi, Guizhou Province 563000, China
- Generic
Drug Research Center of Guizhou Province, Zunyi, Guizhou Province 563000, China
| | - Gang Wei
- Commonwealth
Scientific and Industrial Research Organization Manufacturing, Lindfield, New South Wales 2070, Australia
| | - Zeli Yuan
- Key
Laboratory of Basic Pharmacology of Ministry of Education and Joint
International Research Laboratory of Ethnomedicine of Ministry of
Education, Zunyi, Guizhou Province 563000, China
- School
of Pharmacy, Zunyi Medical University, Zunyi, Guizhou Province 563000, China
- Guizhou
International Scientific and Technological Cooperation Base for Medical
Photo-Theranostics Technology and Innovative Drug Development, Zunyi, Guizhou Province 563000, China
- Key
Laboratory of Biocatalysis and Chiral Drug Synthesis of Guizhou Province, Zunyi, Guizhou Province 563000, China
- Generic
Drug Research Center of Guizhou Province, Zunyi, Guizhou Province 563000, China
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