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Sanjurani T, Paul S, Barman P. Indole-based NNN donor Schiff base ligand and its complexes: Sonication-assisted synthesis, characterization, DNA binding, anti-cancer evaluation and in-vitro biological assay. Bioorg Chem 2024; 146:107281. [PMID: 38484588 DOI: 10.1016/j.bioorg.2024.107281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 02/16/2024] [Accepted: 03/09/2024] [Indexed: 04/13/2024]
Abstract
A novel indole based NNN donor Schiff base ligand and its Ni(II), Zn(II) and Cd(II) complexes have been synthesized using sonication-assisted method which is a highly efficient eco-friendly mechanism. The synthesized complexes have been characterized using elemental analysis, UV-Vis spectroscopy, mass spectrometry, FT-IR, and NMR and are optimized using DFT approach, which provided their theoretical framework. The stoichiometry between the ligand and the metal ions was also determined using Job's method. The thermogravimetric (TGA/DSC) analyses confirm the stability for all complexes at room temperature followed by thermal decomposition in different steps. DNA binding activities have been assessed by employing UV-visible and fluorescence spectra using the CT-DNA. The estimated intrinsic binding constant (Kb) for NiL, ZnL, and CdL complexes was 6.00 × 105, 5.58 × 105, and 4.7 × 105, respectively. In accordance with the Kb value, the quenching constant (Ksv) values of NiL, ZnL, and CdL are 5.59 × 105 M-1, 4.3 × 105 M-1, and 4.08 × 105 M-1 respectively. The anticancer properties have been assessed using MTT Assay. It has been found that the Ni(II) complex (NiL) is the most potent among the series with IC50 of 169 µg/mL. An in-vitro antioxidant experiment using DPPH was used to evaluate the synthesizedcomplexes' ability to scavenge free radicals. The findings indicated that the complexes exhibited notable antioxidant properties. The antioxidant property ZnL has been found to be the highest with an IC50 of 2.91 µg/mL and it follows the order is ZnL > NiL > CdL > L. Using the egg albumin denaturation technique, the anti-inflammatory property have been assessed, and the amount of protein denaturation inhibition has been computed. NiL has the highest % inhibition among the series studied. Comparatively, the metal complexes have been reported to exhibit higher biological activities than the prepared Schiff base ligand. The reason for the excellent biological properties observed in the metal complexes could be attributed to the incorporation of the electron-withdrawing CH3COO- during complexation. Molecular docking studies have been performed on the 2GYT protein and it has been found that the complexes have excellent binding affinity, with NiL having the lowest binding energy of -6.93 Kcal mol-1. The values suggested that NiL is more effective against HePG2 cancer cells, which is also in accordance with the MTT Assay results.
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Affiliation(s)
- Thangjam Sanjurani
- Department of Chemistry, National Institute of Technology Silchar, Assam 788010, India
| | - Sneha Paul
- Department of Chemistry, National Institute of Technology Silchar, Assam 788010, India
| | - Pranjit Barman
- Department of Chemistry, National Institute of Technology Silchar, Assam 788010, India.
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Ahmad Wagay S, Riaz U, Alam M, Ali R. Evaluation of naked-eye sensing and anion binding studies in meso-fluorescein substituted one-walled calix[4]pyrrole (C4P). RSC Adv 2024; 14:7786-7796. [PMID: 38444971 PMCID: PMC10912976 DOI: 10.1039/d3ra08362d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 02/23/2024] [Indexed: 03/07/2024] Open
Abstract
In this paper, we have design, synthesized and fully characterized a new meso-fluorescein substituted one-walled calix[4]pyrrole (C4P7), obtained from simple and easily available starting materials such as fluorescein, 4-hydroxyacetophenone and pyrrole. The anion sensing studies reveal that the C4P7 system displays selective and sensitive naked-eye sensing towards fluoride, phosphate, and acetate anions with the limit of detection of 4.27 mg L-1, 6.4 mg L-1, and 5.94 mg L-1, respectively. Moreover, the C4P7 receptor displays good results of binding (host-guest, 1 : 1) towards a variety of anions. The 1 : 1 binding stoichiometry was further confirmed by means of Job's plots. TD-DFT calculations showed that the HOMO-LUMO gap decreases in all the complexes (C4P7@anions) in comparison to the free C4P7 system. The authors are of the opinion that this work may provide a good platform to explore calix[4]pyrrole chemistry in the arena of recognition/sensing of biologically significant analytes in future studies.
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Affiliation(s)
- Shafieq Ahmad Wagay
- Department of Chemistry, Organic and Supramolecular Functional Materials Research Laboratory, Jamia Millia Islamia Okhla New Delhi 110025 India +91-7011867613
| | - Ufana Riaz
- Department of Chemistry and Biochemistry, North Carolina Central University 27707 USA
| | - Manawwer Alam
- Department of Chemistry, College of Science, King Saud University P. O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Rashid Ali
- Department of Chemistry, Organic and Supramolecular Functional Materials Research Laboratory, Jamia Millia Islamia Okhla New Delhi 110025 India +91-7011867613
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Batool M, Afzal Z, Saleem Khan I, Solangi AR. Exploring the Mechanism of Anionic Chemosensing by Imidazoles: A Review. Crit Rev Anal Chem 2023:1-9. [PMID: 37216276 DOI: 10.1080/10408347.2023.2210680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Chemosensing of ions has gained considerable attention by chemists. Insight into the mechanism involved between sensors and ions always fascinates researchers to develop economical, sensitive, selective, and robust sensors. This review comprehensively explores the mechanism of interaction between Imidazole sensors and anions. With most of the research concentrating only on fluoride and cyanide, this review has highlighted a large gap in various anions detection including SCN-, Cr2O72-, CrO42-, H2PO4-, NO2-, and HSO4-.This study also includes a critical analysis of different mechanisms and their respective limits of detection, with a discussion of the reported results.
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Affiliation(s)
- Madeeha Batool
- Centre for Analytical Chemistry, School of Chemistry, University of the Punjab, New Campus, Lahore, Pakistan
| | - Zartashia Afzal
- Centre for Analytical Chemistry, School of Chemistry, University of the Punjab, New Campus, Lahore, Pakistan
| | - Iqra Saleem Khan
- Centre for Analytical Chemistry, School of Chemistry, University of the Punjab, New Campus, Lahore, Pakistan
| | - Amber Rehana Solangi
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
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Ngo TS, Tracey CT, Navrotskaya AG, Bukhtiyarov AV, Krivoshapkin PV, Krivoshapkina EF. Reusable carbon dot/chitin nanocrystal hybrid sorbent for the selective detection and removal of Cr(VI) and Co(II) ions from wastewater. Carbohydr Polym 2023; 304:120471. [PMID: 36641187 DOI: 10.1016/j.carbpol.2022.120471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/12/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022]
Affiliation(s)
- Thuy S Ngo
- Energy Lab, ITMO University, 9 Lomonosova Street, St. Petersburg 191002, Russian Federation.
| | - Chantal T Tracey
- Energy Lab, ITMO University, 9 Lomonosova Street, St. Petersburg 191002, Russian Federation.
| | | | - Andrey V Bukhtiyarov
- Boreskov Institute of Catalysis of the Siberian Branch of the Russian Academy of Science, 5 Acad. Lavrentiev Prospekt, Novosibirsk 630090, Russian Federation.
| | - Pavel V Krivoshapkin
- Energy Lab, ITMO University, 9 Lomonosova Street, St. Petersburg 191002, Russian Federation.
| | - Elena F Krivoshapkina
- Energy Lab, ITMO University, 9 Lomonosova Street, St. Petersburg 191002, Russian Federation.
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A comparative performance evaluation of cephalosporin's drugs for fluoride recognition. ANAL SCI 2023; 39:527-535. [PMID: 36645644 DOI: 10.1007/s44211-022-00263-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 12/22/2022] [Indexed: 01/17/2023]
Abstract
In this manuscript, readily available cephalosporin's drugs cefuroxime axetil (L1) cefpdoxime proxetil (L2), and cefditoren pivoxil (L3) possess dihydrothiazine ring as signaling unit, and -NH groups as the binding site were used for the sensing of fluoride (F-) ions. In the presence of F-, the drug selectively portrayed a naked-eye detectable color change from colorless. The binding constant of 1:1 stoichiometric complex of L1, L2, and L3 with F- was found to be 2.36 × 104 M-1, 2.44 × 103 M-1 and 1.02 × 104 M-1 respectively. The lowest detection limit (LOD) of F- was found to be 11 µM (209 ppb) with drug L1 and L2. The binding mechanism of the drug with F- was studied by 1H and 19F nuclear magnetic resonance (NMR) spectral titration, electrospray ionization mass spectra (ESI-MS) analysis, and density functional theory (DFT) studies. The presence of F- was monitored in various spiked water and Colgate toothpaste samples. Overall, cephalosporin's drug demonstrates a promising potential for the detection of F- ions in the semi-aqueous phase.
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Schiff Bases: A Versatile Fluorescence Probe in Sensing Cations. J Fluoresc 2023; 33:859-893. [PMID: 36633727 DOI: 10.1007/s10895-022-03135-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 12/24/2022] [Indexed: 01/13/2023]
Abstract
Metal cations such as Zn2+, Al3+, Hg2+, Cd2+, Sn2+, Fe2+, Fe3+ and Cu2+ play important roles in biology, medicine, and the environment. However, when these are not maintained in proper concentration, they can be lethal to life. Therefore, selective sensing of metal cations is of great importance in understanding various metabolic processes, disease diagnosis, checking the purity of environmental samples, and detecting toxic analytes. Schiff base probes have been largely used in designing fluorescent sensors for sensing metal ions because of their easy processing, availability, fast response time, and low detection limit. Herein, an in-depth report on metal ions recognition by some Schiff base fluorescent sensors, their sensing mechanism, their practical applicability in cell imaging, building logic gates, and analysis of real-life samples has been presented. The metal ions having biological, industrial, and environmental significance are targeted. The compiled information is expected to prove beneficial in designing and synthesis of the related Schiff base fluorescent sensors.
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Saleh Hussein A, Lafzi F, Bayindir S, Toprak M. The selective turn-on recognition of fluoride ions using 5-aryl-rhodanines: colorimetric & fluorescent detection. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2023.114574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Naithani S, Goswami T, Thetiot F, Kumar S. Imidazo[4,5-f][1,10]phenanthroline based luminescent probes for anion recognition: Recent achievements and challenges. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Abstract
Sulfonamides are auspicious chemosensors which are capable to bind with ionic species through various ways like complexation, charge transfer, proton transfer etc. and produce a detection signal in the form of an optical change either in visible or UV-light and for electronic as well as fluorimetric spectra. Sulfonamides have gained much attention of analytical chemists these days as these are inexpensive, robust, green in nature and some what sensitive and selective to many anionic and cationic species. Due to their promising versatility in sensing properties, these are under great consideration in forensic, environmental, analytical and biochemistry laboratories. This review narrates how sulfonamides are being used to optically sense ionic species.
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Affiliation(s)
- Madeeha Batool
- School of Chemistry, University of the Punjab, Lahore, Pakistan
| | - Zartashia Afzal
- School of Chemistry, University of the Punjab, Lahore, Pakistan
| | | | - Amber Rehana Solangi
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
| | - Areej Hassan
- School of Chemistry, University of the Punjab, Lahore, Pakistan
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Abstract
Optical sensors are always fascinating for chemists due to their selectivity, sensitivity, robustness and cost-effective nature.
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Affiliation(s)
- Hafiz Muhammad Junaid
- Institute of Chemistry
- University of the Punjab
- Quaid-e-Azam Campus
- Lahore 54590
- Pakistan
| | - Amber Rehana Solangi
- National Centre of Excellence in Analytical Chemistry
- University of Sindh
- Jamshoro
- Pakistan
| | - Madeeha Batool
- Institute of Chemistry
- University of the Punjab
- Quaid-e-Azam Campus
- Lahore 54590
- Pakistan
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Batool M, Junaid HM, Tabassum S, Kanwal F, Abid K, Fatima Z, Shah AT. Metal Ion Detection by Carbon Dots-A Review. Crit Rev Anal Chem 2020; 52:756-767. [PMID: 32985228 DOI: 10.1080/10408347.2020.1824117] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Development of economical, sensitive, selective and robust sensors for metal ion sensing is always fascinating for a chemist because traditional routs for their detection involve complicated instrumentation and critical sample preparation procedures. A large number of metal ion detectors including carbon dots (CDs) have been reported for sensitive and selective detection of metal ions. This review comprehensively explores the use of CDs as metallic cation sensors. CDs are being fabricated from variety of carbon sources by employing various synthetic channels. CDs are proved to be efficient colorimetric and fluorimetric detectors due to surface oxygen moieties which are responsible to co-ordinate with metal ions. Doping of CDs with hetero atom such as N, S, B etc. may further enhance their activity toward metal detection. Therefore, designing of CDs having selective sensing properties with low detection limits has gained significant interest.HighlightsCDs have gained much attention as chemical sensors due to their dynamic features i.e. less toxicity, stability, solubility in various solvents, absorption in UV/Vis. region, fluorescence and tunable physico-chemical properties.These are coast effective, sensitive and selective colorimetric and fluorimetric metal ion sensors.Detection of metal ions by CDs involves different mechanisms such as complexation, aggregation, electron transfer, inner filter effect etc.LOD data is an evidence of their greater efficiency.
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Affiliation(s)
- Madeeha Batool
- Institute of Chemistry, University of the Punjab, New Campus, Lahore, Pakistan
| | | | - Sobia Tabassum
- Interdisciplinary Research Centre in Biomedical Materials, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan
| | - Farah Kanwal
- Institute of Chemistry, University of the Punjab, New Campus, Lahore, Pakistan
| | - Kamran Abid
- Department of Electrical Engineering, University of the Punjab, New Campus, Lahore, Pakistan
| | - Zara Fatima
- Institute of Chemistry, University of the Punjab, New Campus, Lahore, Pakistan
| | - Asma Tufail Shah
- Interdisciplinary Research Centre in Biomedical Materials, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan
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