1
|
Bhaduri R, Mandal S, Kumar Tarai S, Pan A, Mukherjee S, Bagchi A, Biswas A, Ch. Moi S. Cytotoxic activity of nitrogen, sulfur, and oxygen chelated Pt(II) complexes; their DNA/BSA binding by in vitro and in silico approaches. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
2
|
Chang LL, Yang J, Lai SQ, Liu XR, Yang ZW, Zhao SS. Synthesis, crystal structures and CT-DNA/BSA binding properties of Co(III) and Cu(II) complexes with bipyridine Schiff base ligand. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2021.120751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
3
|
Barma A, Ghosh D, Karmakar P, Roy P. Synthesis and characterization of a mononuclear nickel(II) complex with N,O-donor ligand: Its DNA/HSA protein binding properties and tumor suppressive function. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131687] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
4
|
Bhaduri R, Mukherjee S, Mitra I, Ghosh S, Chatterji U, Dodda SR, Moi SC. Anticancer activity and cell death mechanism of Pt(II) complexes: Their in vitro bio-transformation to Pt(II)-DNA adduct formation and BSA binding study by spectroscopic method. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 262:120096. [PMID: 34214741 DOI: 10.1016/j.saa.2021.120096] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 06/10/2021] [Accepted: 06/17/2021] [Indexed: 06/13/2023]
Abstract
Pt(II) complex cis-[Pt(PEA)(OH2)2] X2, C-2 (where, PEA = 2-Pyridylethylamine and X = ClO4- or NO3-) was synthesized by hydrolysis of cis-[Pt(PEA)Cl2] C-1. Glutathione (GSH) and DL-penicilamine (DL-pen) substituted complexes cis-[Pt(PEA)(GSH)],C-3 and cis-[Pt(PEA)DL-pen)]X C-4 were synthesized and characterized by spectroscopic methods. Kinetic studies were traced on complex C-2 with the thiols, GSH and DL-pen. Pt(II)-Sulfur adduct formation mechanisms of the substituted products C-3 and C-4 were established from the kinetic investigation. At pH 4.0, C-2 - thiols interactions follow two consecutive steps: the first step is dependent, and the second is independent of [thiol]. The association equilibrium constant (KE), substitution rate constants for both steps (k1 & k2), and activation parameters (ΔH‡ and ΔS‡) have been assessed to propose the mechanism. Agarose gel electrophoresis mobilization pattern of DNA with complexes was performed to visualize the interaction nature. CT-DNA and BSA binding activities of the complexes have been executed by electronic, fluorescence spectroscopy, and viscometric titration methods. Evaluation of thermodynamic parameters (ΔH0, ΔS0, and ΔG0) from BSA binding constants was executed to propose the driving forces of interaction between these species. A molecular docking study was performed to evaluate the binding mode of complexes with BDNA strands. Anticancer activity of the complexes C-1 to C-4 was explored on both A549 and HEp-2 cell lines, compared with approved anticancer drugs cisplatin, carboplatin, and oxaliplatin. All these complexes were tested by NBT assay on normal cell line skeletal muscle cells (L6 myotubes) to observe the adverse effects compared to recognized anticancer medications. The ultimate aim is to explore the role of anticancer agents on cell death mechanism, which has been performed by flow-cytometer on HEp-2 cell lines.
Collapse
Affiliation(s)
- Rituparna Bhaduri
- Department of Chemistry, National Institute of Technology Durgapur, M.G. Avenue, Durgapur 713209, West Bengal, India
| | - Subhajit Mukherjee
- Department of Chemistry, National Institute of Technology Durgapur, M.G. Avenue, Durgapur 713209, West Bengal, India
| | - Ishani Mitra
- Department of Chemistry, National Institute of Technology Durgapur, M.G. Avenue, Durgapur 713209, West Bengal, India
| | - Subarna Ghosh
- Cancer Research Laboratory, Department of Zoology, University of Calcutta, Kolkata 700019, W.B., India
| | - Urmi Chatterji
- Cancer Research Laboratory, Department of Zoology, University of Calcutta, Kolkata 700019, W.B., India
| | - Subba Reddy Dodda
- Department of Biotechnology, National Institute of Technology Durgapur, M.G. Avenue, Durgapur 713209, WB, India
| | - Sankar Ch Moi
- Department of Chemistry, National Institute of Technology Durgapur, M.G. Avenue, Durgapur 713209, West Bengal, India.
| |
Collapse
|
5
|
Synthesis, DNA binding, apoptosis and molecular docking of a Mn(II) complex constructed by 2-(1,2,4-Triazol-1-yl)-4-picolinic acid. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
6
|
Zhu M, Ji X, Wang S, Zhou Y, Bao H, Li S, Gao E, Wu S, Wang J, Chen Q, Xu J, Zhu X. Crystal structure, DNA binding, cytotoxicity and anticancer ability of Zn(II) complex constructed by 2-(1,2,4)triazol-1-yl-isonicotinic acid. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108571] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
7
|
Mirzaei-Kalar Z, Khandar AA, White JM, Abolhasani H, Komeili Movahhed T, Best SP, Jouyban A. Investigation of biological activity of nickel (II) complex with naproxen and 1,10-phenanthroline ligands. J Biomol Struct Dyn 2020; 39:6939-6954. [PMID: 32772847 DOI: 10.1080/07391102.2020.1804454] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
After the accidental discovery of cis-platinum, extensive attempts have centralized on the rational design of metallic compounds for cancer treatment. Here a solvent-dependent complex of nickel (II) with 1,10-phenanthroline and naproxen, [Ni(1,10-phenanthroline)(naproxen)2(solvent)], solvent = 83% H2O and 17% EtOH in the crystal structure, has been synthesized and specified by the X-ray structure analysis. It's in vitro DNA binding was inspected by the multispectroscopic methods and gel electrophoresis. The data of DNA-viscosity and competition fluorimetric test by methylene blue (MB) and Hoechst 33258 confirm groove binding mode of the complex to CT-DNA. Comparison of the results of this binding study with previous work revealed that the mode of binding of small compounds to DNA is highly influenced by the structure of the compounds. The DNA cleavage potency of the complex was appraised by the agarose gel electrophoretic and it was found that the complex does not have any momentous cleavage potency on the pUC18 plasmid DNA. The cytotoxicity of the complex on HT 29, HepG2 and HEK-293 cell lines by MTT method indicates that %inhibition of the complex on HT 29 is better than HepG2, compared with cisplatin drug. On HEK-293 cells, %inhibition growth of normal cells of the complex is less than cisplatin. Flow cytometry analysis of the complex on the HT 29 cells indicated the apoptosis cell death. RT-PCR studies revealed down-regulation of BCL2 expression, while the expression of BAX, caspase 3 and BAX/BCL2 genes was up-regulated in HT 29 cells by the complex. HighlightsA solvent-dependent nickel (II) with naproxen and 1,10-phenanthroline with aqueous solubility was synthesized and characterized.All experimental results indicate a groove mode of binding of the complex to CT-DNA.Potential biological characteristics confirmed that the complex is a promising candidate as anticancer agent.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Zeinab Mirzaei-Kalar
- Department of Inorganic Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Ali Akbar Khandar
- Department of Inorganic Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Jonathan M White
- School of Chemistry and BIO-21 Molecular Science Institute, University of Melbourne, Parkville, Victoria, Australia
| | - Hoda Abolhasani
- Cellular and Molecular Research Center, Qom University of Medical Sciences, Qom, Iran
| | | | - Stephen P Best
- School of Chemistry and BIO-21 Molecular Science Institute, University of Melbourne, Parkville, Victoria, Australia
| | - Abolghasem Jouyban
- Phamaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.,Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
8
|
Ramachandran E, Gandin V, Bertani R, Sgarbossa P, Natarajan K, Bhuvanesh NSP, Venzo A, Zoleo A, Mozzon M, Dolmella A, Albinati A, Castellano C, Reis Conceição N, C. Guedes da Silva MF, Marzano C. Synthesis, Characterization and Biological Activity of Novel Cu(II) Complexes of 6-Methyl-2-Oxo-1,2-Dihydroquinoline-3-Carbaldehyde-4n-Substituted Thiosemicarbazones. Molecules 2020; 25:E1868. [PMID: 32316698 PMCID: PMC7221752 DOI: 10.3390/molecules25081868] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 04/11/2020] [Accepted: 04/13/2020] [Indexed: 02/06/2023] Open
Abstract
Three new 6-methyl-2-oxo-1,2-dihydroquinoline-3-carbaldehyde-thiosemicarbazones-N-4-substituted pro-ligands and their Cu(II) complexes (1, -NH2; 2, -NHMe; 3, -NHEt) have been prepared and characterized. In both the X-ray structures of 1 and 3, two crystallographically independent complex molecules were found that differ either in the nature of weakly metal-binding species (water in 1a and nitrate in 1b) or in the co-ligand (water in 3a and methanol in 3b). Electron Paramagnetic Resonance (EPR) measurements carried out on complexes 1 and 3 confirmed the presence of such different species in the solution. The electrochemical behavior of the pro-ligands and of the complexes was investigated, as well as their biological activity. Complexes 2 and 3 exhibited a high cytotoxicity against human tumor cells and 3D spheroids derived from solid tumors, related to the high cellular uptake. Complexes 2 and 3 also showed a high selectivity towards cancerous cell lines with respect to non-cancerous cell lines and were able to circumvent cisplatin resistance. Via the Transmission Electron Microscopy (TEM) imaging technique, preliminary insights into the biological activity of copper complexes were obtained.
Collapse
Affiliation(s)
- Eswaran Ramachandran
- Department of Industrial Engineering, University of Padova, 35131 Padova, Italy; (E.R.); (R.B.); (M.M.)
- Chemistry Research Center, National Engineering College, K. R. Nagar, Kovilpatti, Tamilnadu 628503, India
| | - Valentina Gandin
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35131 Padova, Italy; (V.G.); (A.D.); (C.M.)
| | - Roberta Bertani
- Department of Industrial Engineering, University of Padova, 35131 Padova, Italy; (E.R.); (R.B.); (M.M.)
| | - Paolo Sgarbossa
- Department of Industrial Engineering, University of Padova, 35131 Padova, Italy; (E.R.); (R.B.); (M.M.)
| | - Karuppannan Natarajan
- Department of Chemistry, Sri Ramakrishna Mission Vidyalaya College of Arts and Science, Coimbatore, Tamil Nadu 641020, India
| | | | - Alfonso Venzo
- Department of Chemical Sciences, University of Padova, 35131 Padova, Italy; (A.V.); (A.Z.)
| | - Alfonso Zoleo
- Department of Chemical Sciences, University of Padova, 35131 Padova, Italy; (A.V.); (A.Z.)
| | - Mirto Mozzon
- Department of Industrial Engineering, University of Padova, 35131 Padova, Italy; (E.R.); (R.B.); (M.M.)
| | - Alessandro Dolmella
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35131 Padova, Italy; (V.G.); (A.D.); (C.M.)
| | - Alberto Albinati
- Department of Chemistry, University of Milan, 20133 Milan, Italy; (A.A.); (C.C.)
| | - Carlo Castellano
- Department of Chemistry, University of Milan, 20133 Milan, Italy; (A.A.); (C.C.)
| | - Nuno Reis Conceição
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal; (N.R.C.); (M.F.C.G.d.S.)
| | - M. Fátima C. Guedes da Silva
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal; (N.R.C.); (M.F.C.G.d.S.)
| | - Cristina Marzano
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35131 Padova, Italy; (V.G.); (A.D.); (C.M.)
| |
Collapse
|
9
|
Kaya B, Yılmaz ZK, Şahin O, Aslim B, Ülküseven B. Structural characterization of new zinc(ii) complexes with N2O2 chelating thiosemicarbazidato ligands; investigation of the relationship between their DNA interaction and in vitro antiproliferative activity towards human cancer cells. NEW J CHEM 2020. [DOI: 10.1039/d0nj02149k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
New candidates to become DNA-targeting antiproliferative agents: Zinc(ii) complexes bearing N2O2-thiosemicarbazidato ligands.
Collapse
Affiliation(s)
- Büşra Kaya
- Department of Chemistry, Engineering Faculty
- Istanbul University-Cerrahpasa
- 34320 Avcilar
- Turkey
| | | | - Onur Şahin
- Sinop University
- Scientific and Technological Research Application and Research Center
- 57000 Sinop
- Turkey
| | - Belma Aslim
- Faculty of Science
- Department of Biology
- Gazi University
- Ankara
- Turkey
| | - Bahri Ülküseven
- Department of Chemistry, Engineering Faculty
- Istanbul University-Cerrahpasa
- 34320 Avcilar
- Turkey
| |
Collapse
|
10
|
Elamathi C, Fronczek FR, Madankumar A, Prabhakaran R. Synthesis and spectral characterizations of water soluble Cu(ii) complexes containing N-heterocyclic chelates: cell-proliferation, antioxidant and nucleic acid/serum albumin interactions. NEW J CHEM 2020. [DOI: 10.1039/c9nj04136b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Water soluble N-heterocyclic copper(ii) complexes were synthesized, characterized and studied their DNA/protein binding interactions, antioxidation and antiproliferative potentials. The complex 4 found to be better than other complexes.
Collapse
Affiliation(s)
- C. Elamathi
- Department of Chemistry
- Bharathiar University
- Coimbatore 641 046
- India
| | | | - A. Madankumar
- Cancer biology Lab
- Molecular and Nanomedicine Research Unit
- Sathyabama Institute of Science and Technology
- Chennai 600 119
- India
| | - R. Prabhakaran
- Department of Chemistry
- Bharathiar University
- Coimbatore 641 046
- India
| |
Collapse
|
11
|
Mathews NA, Begum PS, Kurup MP. Synthesis, characterization, biological screening and molecular docking of Zn(II) and Cu(II) complexes of 3,5‐dichlorosalicylaldehyde‐N
4
‐cyclohexylthiosemicarbazone. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5294] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Nimya Ann Mathews
- Department of Applied ChemistryCochin University of Science and Technology Kochi 682 022 Kerala India
| | - P.M. Sabura Begum
- Department of Applied ChemistryCochin University of Science and Technology Kochi 682 022 Kerala India
| | - M.R. Prathapachandra Kurup
- Department of Applied ChemistryCochin University of Science and Technology Kochi 682 022 Kerala India
- Department of ChemistrySchool of Physical Sciences Central University of Kerala, Tejaswini Hills, Periye Kasaragod 671 320 India
| |
Collapse
|
12
|
Reddy AS, Mao J, Krishna LS, Badavath VN, Maji S. Synthesis, spectral investigation, molecular docking and biological evaluation of Cu(II), Ni(II) and Mn(II) complexes of (E)-2-((2-butyl-4-chloro-1H-imidazol-5-yl)methylene)-N-methylhydrazinecarbothioamide (C10H16N5ClS) and its DFT studies. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.06.085] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
13
|
Bessega T, Chaves OA, Martins FM, Acunha TV, Back DF, Iglesias BA, de Oliveira GM. Coordination of Zn(II), Pd(II) and Pt(II) with ligands derived from diformylpyridine and thiosemicarbazide: Synthesis, structural characterization, DNA/BSA binding properties and molecular docking analysis. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.119049] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
14
|
Venkateswarlu K, Ganji N, Daravath S, Kanneboina K, Rangan K, Shivaraj. Crystal structure, DNA interactions, antioxidant and antitumor activity of thermally stable Cu(II), Ni(II) and Co(III) complexes of an N,O donor Schiff base ligand. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.06.048] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
15
|
Three Schiff base complexes based on diethylenetriamine: synthesis, structure, DNA binding and cleavage, and in vitro cytotoxicity. TRANSIT METAL CHEM 2019. [DOI: 10.1007/s11243-019-00327-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
16
|
Structural analysis and biological functionalities of iron(III)– and manganese(III)–thiosemicarbazone complexes: in vitro anti-proliferative activity on human cancer cells, DNA binding and cleavage studies. J Biol Inorg Chem 2019; 24:365-376. [DOI: 10.1007/s00775-019-01653-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 03/13/2019] [Indexed: 01/28/2023]
|
17
|
Elamathi C, Butcher R, Prabhakaran R. Anomalous coordination behaviour of 6-methyl-2-oxo-1,2-dihydroquinoline-3-carboxaldehyde-4(N)-substituted Schiff bases in Cu(II) complexes: Studies of structure, biomolecular interactions and cytotoxicity. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4659] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- C. Elamathi
- Department of Chemistry; Bharathiar University; Coimbatore 641 046 India
| | - Ray Butcher
- Department of Inorganic and Structural Chemistry; Howard University; Washington DC 20059 USA
| | - R. Prabhakaran
- Department of Chemistry; Bharathiar University; Coimbatore 641 046 India
| |
Collapse
|
18
|
Gu S, Yu P, Hu J, Liu Y, Li Z, Qian Y, Wang Y, Gou Y, Yang F. Mitochondria-localizing N-heterocyclic thiosemicarbazone copper complexes with good cytotoxicity and high antimetastatic activity. Eur J Med Chem 2019; 164:654-664. [DOI: 10.1016/j.ejmech.2019.01.014] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 11/26/2018] [Accepted: 01/06/2019] [Indexed: 01/16/2023]
|
19
|
Demirbaş Ü, Barut B, Özel A, Çelik F, Kantekin H, Sancak K. Synthesis, characterization and DNA interaction properties of the novel peripherally tetra 4-(3-methyl-4-(3-morpholinopropyl)-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl) substituted water soluble Zn(II) and Cu(II) phthalocyanines. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.10.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
|
20
|
Synthesis, characterization, DNA binding and anticancer ability of a Yb (III) complex constructed by 1,4-bis(pyrazol-1-yl)terephthalic acid. INORG CHEM COMMUN 2019. [DOI: 10.1016/j.inoche.2018.12.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
21
|
Khan MS, Khalid M, Ahmad MS, Ahmad M, Ashafaq M, Rahisuddin, Arif R, Shahid M. Synthesis, spectral and crystallographic study, DNA binding and molecular docking studies of homo dinuclear Co(II) and Ni(II) complexes. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.08.048] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
22
|
Synthesis and Characterization of Oxidovanadium(IV) Complexes of 2-((E)-(6-Fluorobenzo[d]thiazol-2-ylimino)methyl)-6-methoxyphenol and Their Antimicrobial, Antioxidant, and DNA-Binding Studies. Bioinorg Chem Appl 2018; 2018:2452869. [PMID: 30050562 PMCID: PMC6040275 DOI: 10.1155/2018/2452869] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 05/01/2018] [Accepted: 05/23/2018] [Indexed: 11/17/2022] Open
Abstract
Two novel oxidovanadium(IV) complexes with a new bidentate (O- and N-) imine-based ligand 2-((E)-(6-fluorobenzo[d]thiazol-2-ylimino)methyl)-6-methoxyphenol (HL) were synthesized under in situ experimental condition where VOSO4 acts as a kinetic template in the ratio 2 : 1 (L : M) and mixed ligand complex using 1,10-phenanthroline (phen) in 1 : 1 : 1 (L : M : phen) ratio. The synthesized compounds were structurally characterized by microanalysis, magnetic susceptibility, FTIR, electronic spectra, TG/DTA, ESR, and molar conductance studies. Based on the spectral studies, the complexes have the general composition [VO(L)2] (C 1 ) and [VO(L)phen] (C 2 ) in a square pyramid geometrical fashion. The synthesized compounds were primarily screened for their in vitro growth inhibiting activity against different strains of bacteria, namely, E. coli, B. subtilis, S. aureus, and P. aeruginosa by the disc diffusion method. Also, the antifungal activity was determined against C. albicans and A. niger by the Bateman poisoned technique. The in vitro antioxidant activity of all the compounds was determined by DPPH free radical-scavenging assay. Intercalative mode of DNA-binding properties of the oxidovanadium(IV) complexes with calf-thymus DNA (CT-DNA) was investigated using UV, fluorescence spectra, and viscosity measurements.
Collapse
|