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Hanumesh, Amshumali MK, Prachi P, Yogendra K, Madhusudhana N, Vinay Kumar B. Investigation of bisindole-linked pyrimidine moieties: synthesis using strantium-aluminum supported strontium aluminate nanophosphors catalyst, DNA reactivity, and in silico molecular docking studies. NUCLEOSIDES, NUCLEOTIDES & NUCLEIC ACIDS 2024:1-18. [PMID: 38817089 DOI: 10.1080/15257770.2024.2358901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 05/19/2024] [Indexed: 06/01/2024]
Abstract
In this communication, an innovative and straightforward protocol for the one-pot catalytic synthesis of bis(indolyl)pyrimidine derivatives and their DNA binding abilities is presented. The synthesis involves the condensation of indole with diverse substituted pyrimidine-5-carbaldehydes, employing cost-effective and reusable Sr-Al supported nanophosphors, specifically strontium aluminate (SrAl2O4), as a catalyst. In particular, this method does not require the use of toxic solvents. The Sr-Al supported nanophosphorus catalyst exhibited sustained activity over multiple cycles and showed no significant decline while maintaining its strictly heterogeneous properties. The bis(indolyl)pyrimidine derivatives were extensively characterized using spectroscopic and analytical techniques. Furthermore, the interaction between these derivatives and CT-DNA was investigated by absorption spectroscopy, viscosity measurement, and in silico molecular docking studies. Photoinduced cleavage studies demonstrated the photonuclease activity of the compound against pUC19 DNA upon exposure to UV-visible radiation.
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Affiliation(s)
- Hanumesh
- Department of PG Studies and Research in Industrial Chemistry, Vijayanagara Sri Krishnadevaraya University, Bellary, 583105, India
| | - M K Amshumali
- Department of PG Studies and Research in Industrial Chemistry, Vijayanagara Sri Krishnadevaraya University, Bellary, 583105, India
| | - P Prachi
- Department of Biotechnology, Allied Health Science BLDE (Deemed to be University), Vijayapura, India
| | - K Yogendra
- Department of PG Studies and Research in Environmental Science, Kuvempu University, Shimoga, India
| | - N Madhusudhana
- Department of PG Studies and Research in Environmental Science, Kuvempu University, Shimoga, India
| | - B Vinay Kumar
- Department of Chemistry, BGS College of Engineering & Technology, Bengaluru, India
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2
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Hamadouche S, Merouani H, May AA, Ouddai N, Alam M, Micoli L, Erto A, Benguerba Y. Theoretical Exploration of Enhanced Antioxidant Activity in Copper Complexes of Tetrahydroxystilbenes: Insights into Mechanisms and Molecular Interactions. ACS OMEGA 2024; 9:9076-9089. [PMID: 38434904 PMCID: PMC10906065 DOI: 10.1021/acsomega.3c07885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 01/25/2024] [Accepted: 01/29/2024] [Indexed: 03/05/2024]
Abstract
A theoretical investigation was conducted using DFT/PW91/TZP/DMSO calculations on a complete set of exhaustive lists of 18 compounds resulting from the complexation of trans-2,4,3',5'-tetrahydroxystilbene (T-OXY) and cis-2,4,1',3'-tetrahydroxystilbene (C-OXY) with copper metal cations (Cu+ and Cu2+). The ligand-binding sites are the critical points of Quantum Theory of Atoms in Molecules (QTAIM) analysis on neutral and deprotonated ligands. Various mechanisms, including hydrogen atom transfer (HAT), sequential proton loss electron transfer (SPLET), single electron transfer followed by proton transfer (SET-PT), and bond dissociation energy (BDE(E0)) calculations, were employed to quantify the antioxidant activity. The BDE(E0) mechanism emerged as the most suitable approach for such analyses to evaluate the departure of hydrogen atoms since the results show the HAT mechanism is the most likely occurring. Particularly intriguing were the anionic Cu+ complexes with ligands adopting trans configurations and deprotonated conformations, displaying superior antioxidant activity compared to their counterparts. Remarkably, a single ligand within the Cu+ complex exhibited exceptional antioxidant prowess, yielding a BDE(E0) value of 91.47 kcal/mol. Furthermore, a complex involving two deprotonated ligands demonstrated antioxidant activity of 31.12 kcal/mol, signifying its potential as a potent antiradical agent, surpassing T-OXY by a factor of 3.91 and even surpassing the antioxidant efficiency of Vitamin C.
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Affiliation(s)
- Salima Hamadouche
- Laboratoire
de Chimie des Matériaux et des Vivants: Activité &
Réactivité (LCMVAR), Université
Batna 1, 5000 Batna, Algeria
| | - Hafida Merouani
- Laboratoire
de Chimie des Matériaux et des Vivants: Activité &
Réactivité (LCMVAR), Université
Batna 1, 5000 Batna, Algeria
- Département
de Socle Commun, Faculté de Technologie, Université Ben Boulaid Batna 2, 05078 Batna, Algeria
| | - Abd Alghani May
- Département
de Chimie, Faculté des Sciences Exacte, Université Frères Mentouri 1, 25017 Constantine, Algeria
| | - Nadia Ouddai
- Laboratoire
de Chimie des Matériaux et des Vivants: Activité &
Réactivité (LCMVAR), Université
Batna 1, 5000 Batna, Algeria
| | - Manawwer Alam
- Department
of Chemistry, College of Science, King Saud
University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Luca Micoli
- Dipartimento
di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università di Napoli Federico II, P.le Tecchio, 80, 80125 Napoli, Italy
| | - Alessandro Erto
- Dipartimento
di Ingegneria Industriale, Università
di Napoli Federico II, P.le Tecchio, 80, 80125 Napoli, Italy
| | - Yacine Benguerba
- Laboratoire
de Biopharmacie and Pharmacotechnie (LBPt), Department of Process
Engineering, Faculty of Technology, Ferhat
Abbas Setif 1 University, 19000 Setif, Algeria
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Al-Ghouti MA, Ashfaq MY, Khan M, Al Disi Z, Da'na DA, Shoshaa R. State-of-the-art adsorption and adsorptive filtration based technologies for the removal of trace elements: A critical review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 895:164854. [PMID: 37353014 DOI: 10.1016/j.scitotenv.2023.164854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 04/23/2023] [Accepted: 06/10/2023] [Indexed: 06/25/2023]
Abstract
Water and wastewater are contaminated with various types of trace elements that are released from industrial activities. Their presence, at concentrations above the permissible limit, will cause severe negative impacts on human health and the environment. Due to their cost-effectiveness, simple design, high efficiency, and selectivity, adsorption, and adsorptive filtration are techniques that have received lots of attention as compared to other water treatment techniques. Adsorption isotherms and kinetic studies help to understand the mechanisms of adsorption and adsorption rates, which can be used to develop and optimize different adsorbents. This state-of-the-art review provides and combines the advancements in different conventional and advanced adsorbents, biosorbents, and adsorptive membranes for the removal of trace elements from water streams. Herein, this review discusses the sources of different trace elements and their impact on human health. The review also covers the adsorption technique with a focus on various advanced adsorbents, their adsorption capacities, and adsorption isotherm modeling in detail. In addition, biosorption is critically discussed together with its mechanisms and biosorption isotherms. In the end, the application of various advanced adsorptive membranes is discussed and their comparison with adsorbents and biosorbents is systematically presented.
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Affiliation(s)
- Mohammad A Al-Ghouti
- Environmental Science Program, Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, P.O. Box 2713, Doha, Qatar.
| | - Mohammad Y Ashfaq
- Environmental Science Program, Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Mariam Khan
- Environmental Science Program, Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Zulfa Al Disi
- Environmental Science Program, Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Dana A Da'na
- Environmental Science Program, Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Rouzan Shoshaa
- Environmental Science Program, Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, P.O. Box 2713, Doha, Qatar
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Baklouti L, Mellah B, Koko WS. Complexing Properties of Synthesized 1,3,5-Triaza-7-Phosphaadamantane Derivatives Towards Some Lanthanides and Transition Metal Cations With Significant Antimicrobial and Antioxidant Activities. Dose Response 2023; 21:15593258231216274. [PMID: 38022901 PMCID: PMC10655660 DOI: 10.1177/15593258231216274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 10/31/2023] [Indexed: 12/01/2023] Open
Abstract
The synthesis of new water-soluble N-alkylated derivatives of 1,3,5-triaza-7-phosphaadamantane is presented. Ru(PPh3)2Cl2 has been used to react with 1-(4-nitrobenzyl)-3,5-triaza-1-azonia-7-phosphaadamantane bromide (PTAR). By using elemental analysis, NMR, and IR spectroscopy, the obtained compounds were identified. The UV-visible absorption spectroscopy has been used to monitor the complexation of various transition metal cations. Studies on conductivity have been utilized to validate the complexes' stoichiometries. Using the disc diffusion method, five bacteria strains were used for the study of the antimicrobial activity of compounds 1-3. All tested pathogens, including M luteus LB 141107, were found to have strong biologic activity against the compounds tested in this study. Additionally, DPPH (2,2-diphenyl-1-picrylhydrazyl) has been tested for its ability to scavenge hydrogen peroxide and free radicals. According to our results, these compounds exhibit excellent radical scavenging properties.
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Affiliation(s)
- Lassaad Baklouti
- Laboratory of Applied Chemistry and Natural Substances Resources and Environment, Faculty of Sciences, University of Carthage, Bizerta, 7021, Tunisia
| | - Besma Mellah
- National Center of Researches in Material Sciences (CNRSM), Soliman, 2050, Tunisia
| | - Waleed S. Koko
- Department of Science Laboratories, College of Science and Arts, Qassim University, Ar Rass, Saudi Arabia, 51921
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Sankarganesh M, Jose PA, Raja JD, Revathi N, Sakthivel A, Rajesh J, Gurusamy S, Solomon RV. Spectroscopic and theoretical approach of DNA interaction and anticancer studies of bio-pharmaceutically active pyrimidine derived Cu(II) and Zn(II) complexes. Int J Biol Macromol 2023; 249:126095. [PMID: 37536408 DOI: 10.1016/j.ijbiomac.2023.126095] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 07/21/2023] [Accepted: 07/26/2023] [Indexed: 08/05/2023]
Abstract
New metal(II) complexes (CuL2 and ZnL2) with pyrimidine appended Schiff base ligand (HL) were synthesized and characterized by diverse spectroscopic methods, reveals the proposed structure of metal(II) complexes possess square planar geometry. DNA interaction ability of isolated compounds was studied by UV-Visible, fluorescence, viscometric and electrochemical methods and the results showed that isolated compounds intercalated with calf thymus DNA (CT-DNA). In addition, anticancer activities of HL, CuL2, and ZnL2 have been evaluated by MTT assay, signifying moderate cytotoxic activity on selected cancer cell lines and less toxicity on NHDF normal cell line due to the specific targeting of pyrimidine analogues. Moreover, antioxidant activities of isolated compounds towards diverse free radicals have been studied by spectrophotometric methods. These results showed that CuL2 has better antioxidant ability than HL and ZnL2. Finally, antimicrobial activities of isolated compounds against selected antimicrobial pathogens exposed that CuL2 has better antimicrobial activity on E. coli and C. albicans than other antimicrobial pathogens. The DFT calculations have been done to get the optimized geometry of the ligand and the metal complexes. In order to get a broad understanding of the interactions of these synthesized metal complexes, a detailed molecular docking analysis is taken up.
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Affiliation(s)
- Murugesan Sankarganesh
- Department of Chemistry, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, Tamil Nadu 602 105, India
| | - Paulraj Adwin Jose
- Department of Chemistry, E.G.S. Pillay Engineering College, Nagapattinum, Tamil Nadu 611 002, India
| | - Jeyaraj Dhaveethu Raja
- PG & Research Department of Chemistry, The American College, Tallakkulam, Madurai, Tamil Nadu 625 002, India.
| | - Nagaraj Revathi
- Department of Chemistry, Ramco Institute of Technology, Rajapalayam, Virudhunagar 626117, Tamil Nadu, India
| | - Arumugam Sakthivel
- Department of Chemistry, Mepco Schlenk Engineering College, Sivakasi 626005, Tamil Nadu, India
| | - Jegathalaprathaban Rajesh
- Department of Chemistry, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, Tamil Nadu 602 105, India
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Zhang D, Xu F, Lu Q, Zhang R, Xia J. Poly(3-amino-carbazole) derivatives containing 1,10-phenanthroline and 8-hydroxyquinoline ligands: Synthesis, properties and application as ion sensors. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 295:122608. [PMID: 36947941 DOI: 10.1016/j.saa.2023.122608] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 02/27/2023] [Accepted: 03/06/2023] [Indexed: 06/18/2023]
Abstract
As we know, excessive metal ions can even damage human health. Herein, two novel kinds of fluorescent sensing materials Poly(3-amino-carbazole) derivatives containing 1,10-phenanthroline and 8-hydroxyquinoline were synthesized and further applied to fluorescence detection for ions. The results show that Ni2+, Cu2+, and Pd2+ have excellent quenching effects on the fluorescence of Poly[9-(1,10-phenanthroline-2-yl)-9H-carbazol-3-amine] (PPNC), the LOD for these ions reaches 5.2 nM, 12.7 nM, 33.5 nM respectively. In the process of ion response, there is no shift of UV absorption peak, combined with IR spectra and theoretical calculation simulation, the quenching is considered to be caused by the coordination between metal ions and the second amine (-NH-) or 1,10-phenanthroline ligand of PPNC, which leads to the charge transfer from ligands to metal ions. In addition, an acid test was done for PPNC to verify and detect the presence of secondary amine (-NH-), and the results show that PPNC has good acid sensing ability which also supports the secondary amine (-NH-) structure. Finally, the paper test was performed on PPNC, indicating that PPNC has the potential for visual application.
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Affiliation(s)
- Dongkui Zhang
- Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People's Republic of China
| | - Feng Xu
- Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People's Republic of China
| | - Qingyi Lu
- Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People's Republic of China
| | - Rui Zhang
- School of Chemical Engineering and Pharmacy, Wuhan Instituted and Technology, Wuhan 400073, Hubei, People's Republic of China.
| | - Jiangbin Xia
- Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People's Republic of China; Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People's Republic of China.
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7
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Recent Overview of Potent Antioxidant Activity of Coordination Compounds. Antioxidants (Basel) 2023; 12:antiox12020213. [PMID: 36829772 PMCID: PMC9952845 DOI: 10.3390/antiox12020213] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/06/2023] [Accepted: 01/16/2023] [Indexed: 01/18/2023] Open
Abstract
During recent decades, the complexation of organic ligands toward several metal ions of s-p and d-block has been applied as a plan to enhance its antioxidant performance. Due to their wide range of beneficial impacts, coordination compounds are widely used in industries, specifically in the medicinal and pharmaceutical fields. The activity is generally improved by chelation consequently knowing that the characteristics of both ligands and metals can lead to the development of greatly active compounds. Chelation compounds are a substitute for using the traditional synthetic antioxidants, because metal chelates present benefits, including a variety in geometry, oxidation states, and coordination number, that assist and favor the redox methods associated with antioxidant action. As well as understanding the best studied anti-oxidative assets of these compounds, coordination compounds are involved in the free radical scavenging process and protecting human organisms from the opposing effects of these radicals. The antioxidant ability can be assessed by various interrelated systems. The methodological modification offers the most knowledge on the antioxidant property of metal chelates. Colorimetric techniques are the most used, though electron paramagnetic resonance (EPR) is an alternative for metallic compounds, since color does not affect the results. Information about systems, with their benefits, and restrictions, permits a dependable valuation of the antioxidant performance of coordination compounds, as well as assisting application in various states wherever antioxidant drugs are required, such as in food protection, appropriate good-packaged foods, dietary supplements, and others. Because of the new exhaustive analysis of organic ligands, it has become a separate field of research in chemistry. The present investigation will be respected for providing a foundation for the antioxidant properties of organic ligands, future tests on organic ligands, and building high-quality antioxidative compounds.
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Barukial P, Ahmed B, Bezbaruah B. Some Pt(II)-complexes with dpb, Fdpb and F2dpb ligands as potent anticancer agents and their mode of interaction with AT/GC base pairs: A DFT study. J INDIAN CHEM SOC 2023. [DOI: 10.1016/j.jics.2023.100923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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9
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Al-Shamry AA, Khalaf MM, El-Lateef HMA, Yousef TA, Mohamed GG, El-Deen KMK, Gouda M, Abu-Dief AM. Development of New Azomethine Metal Chelates Derived from Isatin: DFT and Pharmaceutical Studies. MATERIALS (BASEL, SWITZERLAND) 2022; 16:83. [PMID: 36614421 PMCID: PMC9821024 DOI: 10.3390/ma16010083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 11/30/2022] [Accepted: 12/19/2022] [Indexed: 06/17/2023]
Abstract
Through the condensation of isatin (indoline-2, 3-dione) and aniline in a 1:1 ratio, a Schiff base ligand was synthesized and characterized via (1H-NMR, mass, IR, UV-Vis) spectra. Elemental analyses, spectroscopy (1H-NMR, mass, UV-Vis), magnetic susceptibility, molar conductivity, mass spectra, scanning electron microscope (SEM), and thermal analysis have all been used to characterize a series of Cr(III), Mn(II), Fe(III), Co(II), Ni(II), Cu(II), Zn(II), and Cd(II) metal complexes derived from the titled ligand. The metal-to-ligand ratio is 1:1, according to the analytical data. The Schiff base ligand displayed bidentate behavior with NO coordination sites when it bonded to metal ions, as seen by the IR spectra. The magnetic moment measurement and UV-Vis spectral investigation showed the octahedral geometry of the Cr(III), Fe(III), Co(II), Ni(II), and Zn(II) complexes, whereas they suggested the tetrahedral geometry of the Mn(II), Cu(II), and Cd(II) complexes. The thermal analysis study confirmed the presence of both hydrated and coordinated water molecules in all the compounds, except for the Mn(II) complex, and showed that the complexes decomposed in three or five decomposition steps leaving the corresponding metal oxide as a residue. The ligand and its metal complexes' antibacterial efficacy were evaluated. The findings showed that the metal complexes had stronger antibacterial properties than the ligand alone. The ligand and its metal complexes' anticancer properties were also investigated. A DFT investigation is also reported to gather information regarding the electronic features of the ligand and its metal complexes. Finally, drug-likeness and ADME characteristics were also calculated as parameters.
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Affiliation(s)
- Abdulrhman A. Al-Shamry
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Mai M. Khalaf
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia
- Department of Chemistry, Faculty of Science, Sohag University, Sohag 82534, Egypt
| | - Hany M. Abd El-Lateef
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia
- Department of Chemistry, Faculty of Science, Sohag University, Sohag 82534, Egypt
| | - Tarek A. Yousef
- Department of Chemistry, Science College, Imam Mohammad Ibn Saud Islamic University (IMSIU), P.O. Box 90950, Riyadh 11623, Saudi Arabia
- Toxic and Narcotic Drug, Forensic Medicine Department, Mansoura Laboratory, Medicolegal Organization, Ministry of Justice, Cairo 11435, Egypt
| | - Gehad G. Mohamed
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt
- Nanoscience Department, Basic and Applied Sciences Institute, Egypt-Japan University of Science and Technology, New Borg El Arab 21934, Egypt
| | | | - Mohamed Gouda
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Ahmed M. Abu-Dief
- Department of Chemistry, Faculty of Science, Sohag University, Sohag 82534, Egypt
- Department of Chemistry, College of Science, Taibah University, Medina 42344, Saudi Arabia
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Khan IM, Khan A, Shakya S, Islam M. Exploring the photocatalytic activity of synthesized hydrogen bonded charge transfer co-crystal of chloranilic acid with 2-ethylimidazole: DFT, molecular docking and spectrophotometric studies in different solvents. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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11
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Bhaduri R, Pan A, Kumar Tarai S, Mandal S, Bagchi A, Biswas A, Ch. Moi S. In vitro anticancer activity of Pd(II) complexes with pyridine scaffold: Their bioactivity, role in cell cycle arrest, and computational study. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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12
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Synthesis and Structural investigation of o-Vanillin scaffold Schiff base metal complexes: Biomolecular interaction and molecular docking studies. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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13
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Jain S, Rana M, Sultana R, Mehandi R, Rahisuddin. Schiff Base Metal Complexes as Antimicrobial and Anticancer Agents. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2117210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Shruti Jain
- Department of Chemistry, Jamia Millia Islamia, New Delhi, India
| | - Manish Rana
- Department of Chemistry, Jamia Millia Islamia, New Delhi, India
| | - Razia Sultana
- Department of Chemistry, Jamia Millia Islamia, New Delhi, India
| | - Rabiya Mehandi
- Department of Chemistry, Jamia Millia Islamia, New Delhi, India
| | - Rahisuddin
- Department of Chemistry, Jamia Millia Islamia, New Delhi, India
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14
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Tailoring of some novel bis-hydrazone metal chelates, spectral based characterization and DFT calculations for pharmaceutical applications and in-silico treatments for verification. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133263] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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15
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Innovation of Imine Metal Chelates as Corrosion Inhibitors at Different Media: A Collective Study. Int J Mol Sci 2022; 23:ijms23169360. [PMID: 36012623 PMCID: PMC9409127 DOI: 10.3390/ijms23169360] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/27/2022] [Accepted: 08/09/2022] [Indexed: 01/03/2023] Open
Abstract
The corrosion inhibition of transition metal chelates derived from Schiff base ligands was tested for (mild, copper, stainless, aluminum and carbon) steel in various concentrations of (HCl, HNO3 and H2SO4) acidic medium at 25 °C through (weight loss, potentiodynamic polarization, polarization curves, electrochemical impedance spectroscopy (EIS) and open circuit potential measurements (OCP)) techniques. The studied compounds were identified with various spectral, analytical and physico-chemical techniques. It was observed that the investigated compounds had a significant inhibitory impact on the corrosion of diverse steels in the medium investigated. The analysis shows that increasing the dose of the studied complexes improves the corresponding inhibitory efficiency values. Negative results of Gibb’s free adsorption energy (ΔGads0) prove the suppression process’s spontaneous and physical adsorption, which contradicts the Langmuir adsorption isotherm. As a result of this insight, a novel bridge between nuclearity driven coordinated inorganic chemistry and materials, as well as corrosion control, has been built. This review provides an overview of the use of Schiff bases and associated transition metals as potential corrosion inhibitors, including the factors that influence their application.
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Synthesis and Characterization of a Carbazole-Based Schiff Base Capable of Detection of Al 3+ in Organic/Aqueous Media. J Fluoresc 2022; 32:2097-2106. [PMID: 35915282 DOI: 10.1007/s10895-022-03008-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 07/26/2022] [Indexed: 10/16/2022]
Abstract
A new fluorescence probe (L) selectively detecting Al3+ ions was synthesized via the condensation reaction, and characterized using UV-Vis, FT-IR, 1H-NMR and 13C-NMR spectroscopic techniques. The limit of detection for Al3+ ions of this synthesized probe was found to be 9.29 × 10-7 M, while the Ka constant value was determined to be 1.64 × 104 M-1. The stoichiometric binding ratio of L-Al3+ was found to be 2:1 using the Job's plot method, and this ratio was also confirmed by 1H-NMR titration and mass spectrometry. The recyclability of the chemosensor was found by the fluorescence method through the addition of EDTA to the L-Al3+ solution. The obtained data showed that the carbazole-based Schiff base acted as an ideal chemosensor for Al3+. Carbazole-based Schiff base as a fluorescent sensor for detection of Al3+ was synthesized and characterized. The association constant (Ka) was calculated to be 1.64 × 104 M-1 and the limit of detection (LOD) value was determined to be 9.29 × 10-7 M. It was determined that th Schiff base was bound to Al3+ ions in 2:1 stoichiometric ratio. In the presence of other competitive metal cations, the selectivity of sensor L to Al3+ was not significantly affected.
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Khalaf MM, Abd El-Lateef HM, Gouda M, Sayed FN, Mohamed GG, Abu-Dief AM. Design, Structural Inspection and Bio-Medicinal Applications of Some Novel Imine Metal Complexes Based on Acetylferrocene. MATERIALS 2022; 15:ma15144842. [PMID: 35888309 PMCID: PMC9317992 DOI: 10.3390/ma15144842] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 06/30/2022] [Accepted: 07/05/2022] [Indexed: 02/01/2023]
Abstract
Some novel imine metal chelates with Cr3+, Mn2+, Fe3+, Co2+, Ni2+, Cu2+, Zn2+, and Cd2+ cations were produced from 2-acetylferrocene and 3-aminophenol. The new acetylferrocene azomethine ligand ((Z)-cyclopenta-1,3-dien-1-yl(2-(1-((3-hydroxyphenyl)imino)ethyl)cyclopenta-2,4-dien-1-yl)iron) and its metal ion chelates were constructed and elucidated using FT-IR, UV/Vis, 1HNMR, DTA/TGA, CHNClM studies, mass spectrometry and SEM analysis. According to the TGA/DTG investigation, the ferrocene moiety spontaneously disintegrates to liberate FeO. The morphology of the free acetylferrocene azomethine via SEM analysis was net-shaped with a size of 64.73 nm, which differed in Cd(II) complex to be a spongy shape with a size of 42.43 nm. The quantum chemical features of the azomethine ligand (HL) were computed, and its electronic and molecular structure was refined theoretically. The investigated acetylferrocene imine ligand behaves as bidinetate ligand towards the cations under study to form octahedral geometries in case of all complexes except in case of Zn2+ is tetrahedral. Various microorganisms were used to investigate the anti-pathogenic effects of the free acetylferrocene azomethine ligand and its metal chelates. Moreover, the prepared ligand and its metal complexes were tested for anticancer activity utilizing four different concentrations against the human breast cancer cell line (MCF7) and the normal melanocyte cell line (HBF4). Furthermore, the binding of 3-aminophenol, 2-acetylferrocene, HL, Mn2+, Cu2+, and Cd2+ metal chelates to the receptor of breast cancer mutant oxidoreductase was discovered using molecular docking (PDB ID: 3HB5).
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Affiliation(s)
- Mai M. Khalaf
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia;
- Department of Chemistry, Faculty of Science, Sohag University, Sohag 82534, Egypt
- Correspondence: (M.M.K.); (H.M.A.E.-L.); (A.M.A.-D.)
| | - Hany M. Abd El-Lateef
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia;
- Department of Chemistry, Faculty of Science, Sohag University, Sohag 82534, Egypt
- Correspondence: (M.M.K.); (H.M.A.E.-L.); (A.M.A.-D.)
| | - Mohamed Gouda
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia;
| | - Fatma N. Sayed
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt; (F.N.S.); (G.G.M.)
| | - Gehad G. Mohamed
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt; (F.N.S.); (G.G.M.)
- Nanoscience Department, Basic and Applied Sciences Institute, Egypt-Japan University of Science and Technology, New Borg El Arab, Alexandria 21934, Egypt
| | - Ahmed M. Abu-Dief
- Department of Chemistry, Faculty of Science, Sohag University, Sohag 82534, Egypt
- Department of Chemistry, College of Science, Taibah University, Madinah 344, Saudi Arabia
- Correspondence: (M.M.K.); (H.M.A.E.-L.); (A.M.A.-D.)
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M.Abu-Dief A, Alotaibi NH, S.Al-Farraj E, Qasem HA, Alzahrani S, Mahfouz MK, Abdou A. Fabrication, Structural elucidation, DFT calculation and molecular docking studies of some novel adenine imine chelates for biomedical applications. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119961] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Khalaf MM, El-Lateef HMA, Alhadhrami A, Sayed FN, Mohamed GG, Gouda M, Shaaban S, Abu-Dief AM. Synthesis, Spectroscopic, Structural and Molecular Docking Studies of Some New Nano-Sized Ferrocene-Based Imine Chelates as Antimicrobial and Anticancer Agents. MATERIALS (BASEL, SWITZERLAND) 2022; 15:3678. [PMID: 35629702 PMCID: PMC9144163 DOI: 10.3390/ma15103678] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/17/2022] [Accepted: 05/18/2022] [Indexed: 11/24/2022]
Abstract
The newly synthesized organometallic acetyl ferrocene imine ligand (HL) was obtained by the direct combination of 2-acetyl ferrocene with 2-aminothiophenol. The electronic and molecular structure of acetyl ferrocene imine ligand (HL) was refined theoretically and the chemical quantum factors were computed. Complexes of the acetyl ferrocene imine ligand with metal(II)/(III) ions (Cr(III), Mn(II), Fe(III), Co(II), Ni(II), Cu(II), Zn(II) and Cd(II)) were fabricated. They were inspected by thermal (DTG/TG), spectroscopic techniques (FT-IR, 1H NMR, mass, UV-Vis), molar conductivity, and CHNClM to explicate their structures. Studies using scanning electron microscope (SEM) were conducted on the free acetyl ferrocene imine ligand and its Cd(II) chelate to confirm their nano-structure. To collect an idea about the effect of metal ions on anti-pathogenic properties upon chelation, the newly synthesized acetyl ferrocene imine ligand and some of its metal chelates were tested against a variety of microorganisms, including Bacillus subtilis, Staphylococcus aureus, Salmonella typhimurium, Escherichia coli, Aspergillus fumigatus, and Candida albicans. The ligand and its metal chelate were tested for cytotoxic activity in human cancer (MCF-7 cell viability) and human melanocyte cell line HBF4. It was discovered that the Cd(II) chelate had the lowest IC50 of the three and thus had the prior activity. Molecular docking was utilized to investigate the interaction of acetyl ferrocene imine ligand (HL) with the receptors of the vascular endothelial growth factor receptor VEGFR (PDB ID: 1Y6a), human Topo IIA-bound G-segment DNA crystal structure (PDB ID: 2RGR), and Escherichia coli crystal structure (PDB ID: 3T88).
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Affiliation(s)
- Mai M. Khalaf
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (H.M.A.E.-L.); (M.G.); (S.S.)
- Department of Chemistry, Faculty of Science, Sohag University, Sohag 82534, Egypt
| | - Hany M. Abd El-Lateef
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (H.M.A.E.-L.); (M.G.); (S.S.)
- Department of Chemistry, Faculty of Science, Sohag University, Sohag 82534, Egypt
| | - Abdulrahman Alhadhrami
- Department of Chemistry, Colleague of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;
| | - Fatma N. Sayed
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt; (F.N.S.); (G.G.M.)
| | - Gehad G. Mohamed
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt; (F.N.S.); (G.G.M.)
- Nanoscience Department, Basic and Applied Sciences Institute, Egypt-Japan University of Science and Technology, New Borg El Arab, Alexandria 21934, Egypt
| | - Mohamed Gouda
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (H.M.A.E.-L.); (M.G.); (S.S.)
| | - Saad Shaaban
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (H.M.A.E.-L.); (M.G.); (S.S.)
- Chemistry Department, Faculty of Science, Mansoura University, Mansoura 35516, Egypt
| | - Ahmed M. Abu-Dief
- Department of Chemistry, Faculty of Science, Sohag University, Sohag 82534, Egypt
- Department of Chemistry, College of Science, Taibah University, P.O. Box 344, Madinah 42353, Saudi Arabia
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Soares EA, Téllez C, Fortes SA, Coelho A, Versiane O, Ferreira GB, Mondragón MA, TéllezS CA. Fourier transform infrared and Raman spectra of the complex cation diethyldithiocarbamate Cr(III) Di-hydrate, [Cr(DDTC)2(OH2)2]+. UV-Vis spectrum, DFT:B3LYP/6-311G(d, p) structural determination, vibrational and natural bond orbital analysis. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132555] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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El-Lateef HMA, Khalaf MM, Shehata MR, Abu-Dief AM. Fabrication, DFT Calculation, and Molecular Docking of Two Fe(III) Imine Chelates as Anti-COVID-19 and Pharmaceutical Drug Candidate. Int J Mol Sci 2022; 23:ijms23073994. [PMID: 35409353 PMCID: PMC8999679 DOI: 10.3390/ijms23073994] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 03/31/2022] [Accepted: 04/01/2022] [Indexed: 02/01/2023] Open
Abstract
Two tetradentate dibasic chelating Schiff base iron (III) chelates were prepared from the reaction of 2,2′-((1E,1′E)-(1,2-phenylenebis(azanylylidene))bis(methanylylidene))bis(4-bromophenol) (PDBS) and 2,2′-((1E,1′E)-((4-chloro-1,2-phenylene)bis(azanylylidene))-bis(methanylylidene))bis(4-bromophenol) (CPBS) with Fe3+ ions. The prepared complexes were fully characterized with spectral and physicochemical tools such as IR, NMR, CHN analysis, TGA, UV-visible spectra, and magnetic moment measurements. Moreover, geometry optimizations for the synthesized ligands and complexes were conducted using the Gaussian09 program through the DFT approach, to find the best structures and key parameters. The prepared compounds were tested as antimicrobial agents against selected strains of bacteria and fungi. The results suggests that the CPBSFe complex has the highest activity, which is close to the reference. An MTT assay was used to screen the newly synthesized compounds against a variety of cell lines, including colon cancer cells, hepatic cellular carcinoma cells, and breast carcinoma cells. The results are expressed by IC50 value, in which the 48 µg/mL value of the CPBSFe complex indicates its success as a potential anticancer agent. The antioxidant behavior of the two imine chelates was studied by DPPH assay. All the tested imine complexes show potent antioxidant activity compared to the standard Vitamin C. Furthermore, the in vitro assay and the mechanism of binding and interaction efficiency of the tested samples with the receptor of COVID-19 core protease viral protein (PDB ID: 6lu7) and the receptor of Gram-negative bacteria (Escherichia coli, PDB ID: 1fj4) were investigated using molecular docking experiments.
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Affiliation(s)
- Hany M. Abd El-Lateef
- Department of Chemistry, College of Science, King Faisal University, P.O. Box 400, Al-Ahsa 31982, Saudi Arabia;
- Chemistry Department, Faculty of Science, Sohag University, Sohag 82534, Egypt
- Correspondence: (H.M.A.E.-L.); (A.M.A.-D.)
| | - Mai M. Khalaf
- Department of Chemistry, College of Science, King Faisal University, P.O. Box 400, Al-Ahsa 31982, Saudi Arabia;
- Chemistry Department, Faculty of Science, Sohag University, Sohag 82534, Egypt
| | - Mohamed R. Shehata
- Chemistry Department, Faculty of Science, Cairo University, Giza P.O. Box 12613, Egypt;
| | - Ahmed M. Abu-Dief
- Department of Chemistry, College of Science, King Faisal University, P.O. Box 400, Al-Ahsa 31982, Saudi Arabia;
- Chemistry Department, College of Science, Taibah University, Madinah P.O. Box 344, Saudi Arabia
- Correspondence: (H.M.A.E.-L.); (A.M.A.-D.)
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22
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Development of some magnetic metal–organic framework nano composites for pharmaceutical applications. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109251] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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23
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Deswal Y, Asija S, Dubey A, Deswal L, Kumar D, Kumar Jindal D, Devi J. Cobalt(II), nickel(II), copper(II) and zinc(II) complexes of thiadiazole based Schiff base ligands: Synthesis, structural characterization, DFT, antidiabetic and molecular docking studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132266] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Liu L, Liu M, Zhang Y, Sun W, Li J, Feng Y, Geng Y, Cheng G, Gong Y, Guo Y, Wu L, Wang C, Liu Y. Improving Solubility and Avoiding Hygroscopicity of Gatifloxacin by Forming Pharmaceutical Salt of Gatifloxacin‐2,3‐Dihydroxybenzoic Acid Based on Charge‐Assisted Hydrogen Bonds. CRYSTAL RESEARCH AND TECHNOLOGY 2022. [DOI: 10.1002/crat.202100198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Lixin Liu
- College of Pharmacy Jiamusi University Jiamusi 154007 China
| | - Moqi Liu
- College of Pharmacy Jiamusi University Jiamusi 154007 China
| | - Yunan Zhang
- College of Pharmacy Jiamusi University Jiamusi 154007 China
| | - Weitong Sun
- College of Pharmacy Jiamusi University Jiamusi 154007 China
| | - Jinjing Li
- College of Pharmacy Jiamusi University Jiamusi 154007 China
| | - Yanru Feng
- College of Pharmacy Jiamusi University Jiamusi 154007 China
| | - Yiding Geng
- College of Pharmacy Jiamusi University Jiamusi 154007 China
| | | | - Yixia Gong
- College of Pharmacy Jiamusi University Jiamusi 154007 China
| | - Yingxue Guo
- College of Pharmacy Jiamusi University Jiamusi 154007 China
| | - Lili Wu
- College of Pharmacy Jiamusi University Jiamusi 154007 China
| | - Chaoxing Wang
- College of Pharmacy Jiamusi University Jiamusi 154007 China
| | - Yingli Liu
- College of Pharmacy Jiamusi University Jiamusi 154007 China
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A couple of antitumor Pd(II) complexes make DNA-refolding and HSA-unfolding: Experimental and docking studies. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118450] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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26
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Jyothi M, Banumathi, Zabiulla, Sherapura A, Khamees HA, Prabhakar B, Khanum SA. Synthesis, structure analysis, DFT calculations and energy frameworks of new coumarin appended oxadiazoles, to regress ascites malignancy by targeting VEGF mediated angiogenesis. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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27
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A comparative DFT study of some N-based aromatic ligand metal complexes as anticancer agents and analysis of their mode of interaction with DNA base pair. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100391] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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28
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Miao Q, Xu Y, Miao T, Xu L. Theoretical insights and design of Ru(II)-based complexes with DNA-photocleavage properties. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2021.100320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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29
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Abu-Dief AM, El-Khatib RM, Aljohani FS, Al-Abdulkarim HA, Alzahrani S, El-Sarrag G, Ismael M. Synthesis, Structural elucidation, DFT calculation, Biological studies and DNA Interaction of Some Aryl hydrazone Cr3+, Fe3+, and Cu2+ Chelates. Comput Biol Chem 2022; 97:107643. [DOI: 10.1016/j.compbiolchem.2022.107643] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 01/16/2022] [Accepted: 02/09/2022] [Indexed: 12/20/2022]
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30
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Alharbi A, Alsoliemy A, Alzahrani SO, Alkhamis K, Almehmadi SJ, Khalifa ME, Zaky R, El-Metwaly NM. Green synthesis approach for new Schiff's-base complexes; theoretical and spectral based characterization with in-vitro and in-silico screening. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117803] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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31
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Jayaraj A, Gayathri MS, Sivaraman G, P CAS. A highly potential acyclic Schiff base fluorescent turn on sensor for Zn 2+ ions and colorimetric chemosensor for Zn 2+, Cu 2+ and Co 2+ ions and its applicability in live cell imaging. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2022; 226:112371. [PMID: 34906923 DOI: 10.1016/j.jphotobiol.2021.112371] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 11/22/2021] [Accepted: 11/29/2021] [Indexed: 06/14/2023]
Abstract
Herein, we report two acyclic Schiff base receptors CS-1 and CS-2 capable of being selective fluorescent turn on for Zn2+ions and colorimetric chemosensor for Zn2+, Cu2+, and Co2+ ions by showing a colour change from colourless to yellow in 1:1 ratio of acetonitrile and HEPES buffer (1:1, v/v, pH 7.4) without the interference from other metal ions screened (Cd2+, Hg2+, Sn2+, Ni2+, Cr3+, Mn2+, Pb2+, Ba2+, Al3+, Ca2+, Mg2+, K+ and Na+). The fluorescence turn on enhancement towards Zn2+ ions is ascribed to PET blocking, suppression of -C=N- isomerisation, and the ESIPT process. The selectivity, competitivity and reversibility of the synthesised probes (CS-1 and CS-2) made them promising chemosensors for the detection of Zn2+, Cu2+, and Co2+ ions. The density functional theory (DFT) calculations have theoretically endorsed the colorimetric changes in the examined absorption spectra and binding mode of both CS-1/CS-2 with metals ions. In addition, 1H NMR titrations were also consistent with the recognition mechanism of Zn2+ ions with the CS-1/CS-2. Further, the Jobs plot analysis infers a 1:1 stoichiometric ratio for both evaluating receptors CS-1 and CS-2 with Zn2+, Cu2+ and Co2+ ions and was supported by DFT, NMR (only for Zn2+ ions), UV-Visible, and fluorescence spectroscopic studies. Moreover, the detection limits of CS-1 and CS-2 for Zn2+ ions were determined to be 7.69 and 5.35 nM, respectively, which is less compared to the detection limit of Cu2+, Co2+ ions as well as the limit approved by the United State Environmental Protection Agency (US EPA). The probes CS-1 and CS-2 found to show high fluorescence quantum yields at pH = 7 during the titration with Zn2+ as compared with other pHs (5-6 and 8-11). Gratifyingly, fluorescence microscopy imaging in HeLa cells revealed that the pair of receptors can be employed as an excellent fluorescent probe for the detection of Zn2+ions in living cells, indicating that this facile chemosensor has a huge potential in cellular imaging.
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Affiliation(s)
- Anjitha Jayaraj
- Main group Organometallics Materials, Supramolecular Chemistry and Catalysis lab, Department of Chemistry, National Institute of Technology, Calicut 673601, India
| | - M S Gayathri
- Main group Organometallics Materials, Supramolecular Chemistry and Catalysis lab, Department of Chemistry, National Institute of Technology, Calicut 673601, India
| | - Gandhi Sivaraman
- Department of Chemistry, Gandhigram Rural Institute (Deemed to be University), Gandhigram 624302, India
| | - Chinna Ayya Swamy P
- Main group Organometallics Materials, Supramolecular Chemistry and Catalysis lab, Department of Chemistry, National Institute of Technology, Calicut 673601, India.
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Transition metal complexes of triazole-based bioactive ligands: synthesis, spectral characterization, antimicrobial, anticancer and molecular docking studies. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [PMCID: PMC8608565 DOI: 10.1007/s11164-021-04621-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In the present research work, four new heterocyclic Schiff base ligands (1–4) were synthesized by the condensation of 4-(4-amino-5-mercapto-4H-1,2,4-triazol-3-yl)phenol with salicylaldehyde derivatives in 1:1 molar ratio. The synthesized Schiff base ligands were allowed for complexation with Co(II), Ni(II), Cu(II), Zn(II) metal ions. The structure of the newly synthesized compounds (1–20) was elucidated with the help of various spectral and physicochemical techniques. Spectroscopic data confirm the tridentate nature of ligands which coordinate to the metal via deprotonated oxygen, azomethine nitrogen and thiol sulphur. Conductivity data showed the non-electrolytic nature of complexes. Furthermore, the synthesized compounds were evaluated for their in-vitro antimicrobial activity against four pathogenic bacterial strains and two pathogenic fungal strains. The observed results of microbial activity reveals that compound 3 and its complexes (13–16) were found most potent against the pathogenic strains. In addition, the anticancer activity of all the synthesized compounds was evaluated against human carcinoma cell lines i.e. HCT-116, DU145 and A549 using MTT assay. Among the tested compounds 12, 19, and 20 were found to show promising potency against the cancer cell lines. To rationalize the preferred modes of interaction of most potent compounds with the active site of human EGFR protein (PDB id: 5XGM), molecular docking studies were performed.
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