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Divya D, Ramanjaneyulu M, Nandhagopal M, Srinivasan V, Thennarasu S. A fluorescent chemosensor for selective detection of chromium (III) ions in environmentally and biologically relevant samples. Spectrochim Acta A Mol Biomol Spectrosc 2024; 316:124286. [PMID: 38663135 DOI: 10.1016/j.saa.2024.124286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 04/08/2024] [Accepted: 04/11/2024] [Indexed: 05/15/2024]
Abstract
A simple single step one pot multicomponent reaction was performed to synthesize N-(tert-butyl)-2-(furan-2-yl)imidazo[1,2-a]pyridine-3-amine (TBFIPA). The synthesized TBFIPA was subjected to library of cations to study its ability for selective and sensitive detection of specific metal ions. Selective detection of chromium ions by TBFIPA were found from the significant hypsochromic shift (335 nm → 285 nm) in the UV-Visible spectra. The fluorescent TBFIPA displays complete quenching of fluorescence under UV lamp (365 nm) only in the presence of chromium without the interference of common metal ions. Binding constant (ka) obtained from Benesi-Hildebrand plot is 0.21 × 105 M-1, limit of detection (LOD) and limit of quantification (LOQ) of TBFIPA toward Cr3+ ions are 4.70 × 10-7 M and 1.56 × 10-7 M, respectively. The mechanism proposed during complex formation were supported by stoichiometric Job continuous variation plot, 1H NMR titration and ESI-MS spectroscopic data. All the experimental confirmation for complex formation were corroborated with theoretical DFT studies optimized using RB3LYP/6-31G(d) basis set. The selectivity and sensitivity of TBFIPA toward Cr3+ ions are found suitable to design a user-friendly silica based portable test kit. Alongside, TBFIPA was successfully utilized for imaging onion epidermal cells. Furthermore, the results obtained for biological, environmental, and industrial samples provided solid evidence to estimate chromium ions using TBFIPA in these real samples.
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Affiliation(s)
- Dhakshinamurthy Divya
- Department of Chemistry, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Avadi, Chennai 600062, Tamil Nadu, India; Organic and Bioorganic Chemistry Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, Tamil Nadu, India
| | - Mala Ramanjaneyulu
- Academy of Scientific and Innovative Research (AcSIR), CSIR-Central Leather Research Institute, Adyar, Chennai 600020, Tamil Nadu, India
| | - Manivannan Nandhagopal
- Saveetha Medical College and Hospital, Institute of Medical and Technical Science, Thandalam, Chennai 602105, Tamil Nadu, India
| | - Venkatesan Srinivasan
- Department of Chemistry, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Avadi, Chennai 600062, Tamil Nadu, India
| | - Sathiah Thennarasu
- Organic and Bioorganic Chemistry Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, Tamil Nadu, India.
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Roman G, Balan-Porcăraşu M, Săcărescu L. Development of benzaldehyde-pyrazoline hybrids for functionalization of polymers with fluorescent pendant moieties. AN ACAD BRAS CIENC 2024; 96:e20220875. [PMID: 38511740 DOI: 10.1590/0001-3765202420220875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 04/16/2023] [Indexed: 03/22/2024] Open
Abstract
Compounds with a pyrazoline scaffold are useful as sensors for fluorescence detection of different types of analytes. Recovery of a pyrazoline-based sensor with a view to use it recurrently would be more facile when the sensing molecule is attached to a solid support. A reaction sequence has been designed to synthesize two benzaldehyde-pyrazoline hybrids as examples of a hitherto unknown type of compounds to be employed for the potential derivatization of polymers containing primary amino groups through azomethine formation. All intermediates, including the fairly unstable N1 -unsubstituted pyrazolines, along with the target compounds have been structurally characterized, with an emphasis on their particular NMR features. Examination of the photophysical properties of these benzaldehyde-pyrazoline hybrids showed that, despite the shortening of the extended N1-N2-C3 conjugated system common to 1,3,5-triarylpyrazolines through the replacement of the aryl at N1 by an aryloxyacetyl moiety, the novel compounds exhibit emission maxima at approximately 350 nm. Moreover, the introduction of a moderately electron-withdrawing substituent such as chlorine in the phenyl at C3 of pyrazoline leads to an amplification of fluorescence intensity.
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Affiliation(s)
- Gheorghe Roman
- Petru Poni Institute of Macromolecular Chemistry Department of Inorganic Polymers, 41A Aleea Grigore Ghica Vodă, 700487 Iaşi, Romania
| | - Mihaela Balan-Porcăraşu
- Petru Poni Institute of Macromolecular Chemistry, Department of Polycondensation and Thermostable Polymers, 41A Aleea Gr. Ghica Vodă, 700487 Iaşi, Romania
| | - Liviu Săcărescu
- Petru Poni Institute of Macromolecular Chemistry Department of Inorganic Polymers, 41A Aleea Grigore Ghica Vodă, 700487 Iaşi, Romania
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Hamada WM, El-Nahass MN, Noser AA, Fayed TA, El-Kemary M, Salem MM, Bakr EA. Simple dihydropyridine-based colorimetric chemosensors for heavy metal ion detection, biological evaluation, molecular docking, and ADMET profiling. Sci Rep 2023; 13:15420. [PMID: 37723190 PMCID: PMC10507071 DOI: 10.1038/s41598-023-42137-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 09/05/2023] [Indexed: 09/20/2023] Open
Abstract
In this study, two novel chemosensors containing dihydropyridine fragment namely; (2E, 2E')-1,1'-(2,6-dimethyl-1,4-dihydropyridine-3,5-diyl)bis(3-(4-(dimethylamino)phenyl)prop-2-en-1-one) (1), (2E,2E',4E,4E')-1,1' -(2,6-dimethyl-1,4-dihydropyridine-3,5-diyl)bis(5-(4-(dimethylamino)phenyl)penta-2,4-dien-1-one) (2) have been synthesized and characterized. The solvatochromic behavior was explored in different solvents of various polarities. The visual detection, as well as UV-Vis and fluorescence measurements were carried out to explore the colorimetric and optical sensing properties of the investigated chemosensors towards various metal ions such as Al3+, Cr3+, Mn2+, Fe3+, Co2+, Ni2+, Cu2+, Mg2+, Hg2+ and Zn2+. The chemosensors 1 and 2 have strong detecting abilities, with excellent sensitivity and selectivity for Cu2+ and Fe3+, respectively, over the other metal ions. The chemosensors were totally reversible upon addition of EDTA to the formed complexes and displayed a turn on-off-on fluorescence response based on an effect of chelation-quenching fluorescence. The antioxidant activities of the investigated chemosensors were assessed. They were examined in-silico for their capacity to block the Akt signaling pathway, which is involved in cancer proliferation with interpreting their pharmacokinetics aspects. Furthermore, in-vitro antitumor evaluation against a panel of cancer cell lines for the investigated chemosensors has been examined. Conclusively, chemosensor 1 was more effective at scavenging free radicals and as an anticancer agent and could be exploited as a therapeutic candidate for cancer therapy than chemosensor 2 due to its potential inhibition of Akt protein.
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Affiliation(s)
- Wafaa M Hamada
- Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Marwa N El-Nahass
- Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt.
| | - Ahmed A Noser
- Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Tarek A Fayed
- Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Maged El-Kemary
- Institute of Nanoscience and Nanotechnology, Kafrelsheikh University, Kafr El-Sheikh, 33516, Egypt
| | - Maha M Salem
- Biochemistry Division, Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Eman A Bakr
- Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
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Sharma S, Debnath J, Sundar Ghosh K. Method for highly selective, ultrasensitive fluorimetric detection of Cu 2+ and Al 3+ by Schiff bases containing o-phenylenediamine and o-aminophenol. Methods 2023:S1046-2023(23)00111-1. [PMID: 37399850 DOI: 10.1016/j.ymeth.2023.06.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 06/27/2023] [Accepted: 06/30/2023] [Indexed: 07/05/2023] Open
Abstract
Schiff base probes (1 and 2) made from o-phenylenediamine and o-aminophenol were appeared as highly selective fluorimetric chemosensor of Cu2+ and Al3+ ions respectively. Strong fluorescence emission of probe 1 at 415 nm (excitation at 350 nm) was instantly turned off on addition of Cu2+. Very weak fluorescence of probe 2 at 506 nm (excitation at 400 nm) was immediately turned on specifically by Al3+. Job's plot and ESI-MS results suggested 1:1 molar stoichiometric ratio of metal ion and probe in their respective complexes. Probe 1 and 2 had demonstrated very low detection limit (9.9 and 2.5 nM respectively). Binding of Cu2+ with probe 1 was found chemically reversible on addition of EDTA, while complexation between Al3+ and probe 2 was not reversible. On the basis of density functional theory (DFT) and spectroscopic results, probable mode of sensing of the metal ions by the probes were proposed. Quenching of the fluorescence of probe 1 by Cu2+ was attributed to the extensive transfer of charge from the probe molecule to paramagnetic copper ion. Whereas, in the Al3+-complex of probe 2, photo-induced electron transfer (PET) process from the imine nitrogen to salicylaldehyde moiety was restricted and thereby the weak emission intensity of probe 2 was enhanced significantly. Effective pH range of sensing the metal ions by probe 1 and 2 were 4 to 8 and 6 to 10 respectively. Probe 1 was also applied in the design of a logic gate for Cu2+ detection. Moreover, probe 1 and 2 was also used in water sample analysis for quantitative estimation of Cu2+ and Al3+ respectively.
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Affiliation(s)
- Shivani Sharma
- Department of Chemistry, National Institute of Technology Hamirpur, Himachal Pradesh 177005, India
| | - Joy Debnath
- Department of Chemistry, SASTRA Deemed to be University, Thanjavur, Tamilnadu 613401, India
| | - Kalyan Sundar Ghosh
- Department of Chemistry, National Institute of Technology Hamirpur, Himachal Pradesh 177005, India.
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Ponce-de-León J, Peñas-Defrutos MN, Vélez A, Aullón G, Espinet P. Solid state luminescence of phosphine-EWO ligands with fluorinated chalcone skeletons and their PdX 2 complexes: metal-promoted phosphorescence enhancement. Dalton Trans 2023; 52:3265-3269. [PMID: 36857677 DOI: 10.1039/d3dt00408b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
Complexes trans-[PdX2L2] (X = Cl and Br), where L is 1-(PR2),2-(CHCH-C(O)Ph)-C6F4 (R = Ph, Cy, and iPr), display phosphorescent emission in the solid state, whereas due to their substantially lower lifetimes, the free ligands exhibit fluorescent behaviour. Alternatively, structurally identical derivatives with halide replaced by CN- or Pd replaced by Pt are non-emissive. DFT calculations explain this diverse behaviour, showing that the hybridization of orbitals of the MX2 moiety with those of the chalcone fragment of ligands is significant only for the LUMO of the emissive compounds. In other words, in our complexes, only MLMCT processes (LM = Metal-perturbed Ligand-centered orbital) lead to observable luminescence.
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Affiliation(s)
- Jaime Ponce-de-León
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47071-Valladolid, Spain.
| | - Marconi N Peñas-Defrutos
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47071-Valladolid, Spain.
| | - Andrea Vélez
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47071-Valladolid, Spain.
| | - Gabriel Aullón
- Secció de Química Inorgànica (Departament de Química Inorgànica i Orgànica), Institut de Química Teòrica i Computacional, Universitat de Barcelona, 08028 Barcelona, Spain
| | - Pablo Espinet
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47071-Valladolid, Spain.
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Joy BP, Paul S, Manohar BG, Gudimetla VB. Benzilbis(2-hydroxyanil) – highly efficient ligand for ferric ion (Fe 3+) sensing. NEW J CHEM 2023. [DOI: 10.1039/d2nj05178h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Benzilbis(2-hydroxyanil) was found to be an efficient and selective turn-on fluorophore for ferric ion (Fe3+) sensing.
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Affiliation(s)
- Bony Pariyadan Joy
- Department of Chemistry, School of Basic and Applied Sciences, Central University of Tamil Nadu, Thiruvarur, Tamil Nadu, 610 005, India
| | - Sudeep Paul
- Department of Chemistry, School of Basic and Applied Sciences, Central University of Tamil Nadu, Thiruvarur, Tamil Nadu, 610 005, India
| | - Basavaraju Gari Manohar
- Department of Chemistry, School of Basic and Applied Sciences, Central University of Tamil Nadu, Thiruvarur, Tamil Nadu, 610 005, India
| | - Vittal Babu Gudimetla
- Department of Chemistry, School of Basic and Applied Sciences, Central University of Tamil Nadu, Thiruvarur, Tamil Nadu, 610 005, India
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Tandel SN, Mistry P, Patel PN. Novel chalcone scaffolds of benzothiophene as an efficient real time hydrazine sensor: Synthesis and single crystal XRD studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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