51
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Thalamuthu S, Annaraj B, Neelakantan MA. A systematic investigation on biological activities of a novel double zwitterionic Schiff base Cu(II) complex. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 118:120-129. [PMID: 24044990 DOI: 10.1016/j.saa.2013.08.065] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Revised: 08/13/2013] [Accepted: 08/15/2013] [Indexed: 06/02/2023]
Abstract
Double zwitterionic amino acid Schiff base, o-vanillylidene-L-histidine (OVHIS) and its copper complex (CuOVHIS) have been synthesized and characterized. CuOVHIS has distorted octahedral geometry, and OVHIS coordinates the copper ion in a tetradentate manner (N2O2). The pKa of OVHIS in aqueous solution was studied by potentiometric and spectrophotometric methods. DNA binding behavior of the compounds was investigated using spectrophotometric, cyclic voltammetric, and viscosity methods. The efficacy of DNA cleaving nature was tested on pUC19 DNA. The in vitro biological activity was tested against various micro organisms. The effect of CuOVHIS on the surface feature of Escherichia coli was analyzed by SEM. DPPH assay studies revealed that CuOVHIS has higher antioxidant activity. OVHIS inhibits proliferation of HCT117 cells with half maximal inhibition (IC50) of 71.15±0.67. Chelation of OVHIS with Cu(II) ion enhances the inhibition of proliferation action (IC50=53.14±0.67).
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Affiliation(s)
- S Thalamuthu
- Chemistry Research Centre, National Engineering College, K.R. Nagar, Kovilpatti 628503, Thoothukudi District, Tamil Nadu, India
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52
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Rajalakshmi S, Fathima A, Rao JR, Nair BU. Antibacterial activity of copper(ii) complexes against Staphylococcus aureus. RSC Adv 2014. [DOI: 10.1039/c4ra03241a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
[Cu(bitpy)2]2+ showed better antistaphylococcal activity than [Cu(bitpy)(dmp)]2+. SEM and confocal microscopy showed the damage caused by complex 2 is more effective than 1. Complex 2 can be better used as an anti-biofouling agent.
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Affiliation(s)
- Subramaniyam Rajalakshmi
- Council of Scientific and Industrial Research (CSIR) – Central Leather Research Institute (CLRI)
- Chemical Laboratory
- Chennai 600 020, India
| | - Aafreen Fathima
- Council of Scientific and Industrial Research (CSIR) – Central Leather Research Institute (CLRI)
- Chemical Laboratory
- Chennai 600 020, India
| | - Jonnalagadda Raghava Rao
- Council of Scientific and Industrial Research (CSIR) – Central Leather Research Institute (CLRI)
- Chemical Laboratory
- Chennai 600 020, India
| | - Balachandran Unni Nair
- Council of Scientific and Industrial Research (CSIR) – Central Leather Research Institute (CLRI)
- Chemical Laboratory
- Chennai 600 020, India
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53
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Gama S, Rodrigues I, Marques F, Palma E, Correia I, Carvalho MFNN, Pessoa JC, Cruz A, Mendo S, Santos IC, Mendes F, Santos I, Paulo A. New ternary bipyridine–terpyridine copper(ii) complexes as self-activating chemical nucleases. RSC Adv 2014. [DOI: 10.1039/c4ra12085j] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
New copper complexes with an impressive DNA cleaving ability in the absence of any exogenous oxidants or reductants.
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Affiliation(s)
- Sofia Gama
- Centro de Ciências e Tecnologias Nucleares (C2TN)
- Instituto Superior Técnico
- Universidade de Lisboa
- Campus Tecnológico e Nuclear
- Bobadela LRS, Portugal
| | - Inês Rodrigues
- Centro de Ciências e Tecnologias Nucleares (C2TN)
- Instituto Superior Técnico
- Universidade de Lisboa
- Campus Tecnológico e Nuclear
- Bobadela LRS, Portugal
| | - Fernanda Marques
- Centro de Ciências e Tecnologias Nucleares (C2TN)
- Instituto Superior Técnico
- Universidade de Lisboa
- Campus Tecnológico e Nuclear
- Bobadela LRS, Portugal
| | - Elisa Palma
- Centro de Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa, Portugal
| | - Isabel Correia
- Centro de Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa, Portugal
| | | | - João Costa Pessoa
- Centro de Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa, Portugal
| | - Andreia Cruz
- Departamento de Biologia & CESAM
- Universidade de Aveiro
- Campus de Santiago
- 3810-193 Aveiro, Portugal
| | - Sónia Mendo
- Departamento de Biologia & CESAM
- Universidade de Aveiro
- Campus de Santiago
- 3810-193 Aveiro, Portugal
| | - Isabel C. Santos
- Centro de Ciências e Tecnologias Nucleares (C2TN)
- Instituto Superior Técnico
- Universidade de Lisboa
- Campus Tecnológico e Nuclear
- Bobadela LRS, Portugal
| | - Filipa Mendes
- Centro de Ciências e Tecnologias Nucleares (C2TN)
- Instituto Superior Técnico
- Universidade de Lisboa
- Campus Tecnológico e Nuclear
- Bobadela LRS, Portugal
| | - Isabel Santos
- Centro de Ciências e Tecnologias Nucleares (C2TN)
- Instituto Superior Técnico
- Universidade de Lisboa
- Campus Tecnológico e Nuclear
- Bobadela LRS, Portugal
| | - António Paulo
- Centro de Ciências e Tecnologias Nucleares (C2TN)
- Instituto Superior Técnico
- Universidade de Lisboa
- Campus Tecnológico e Nuclear
- Bobadela LRS, Portugal
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54
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Synthesis, structural characterization and DNA interaction of new copper-terpyridine complexes. Polyhedron 2014. [DOI: 10.1016/j.poly.2013.11.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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55
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Synthesis and DNA photocleaving activities of ancillary ligand-containing zinc complexes of quaternized carboxylates. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2013.09.033] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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56
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Rajalakshmi S, Kiran MS, Vaidyanathan VG, Azhagiya Singam ER, Subramaniam V, Nair BU. Investigation of nuclease, proteolytic and antiproliferative effects of copper(II) complexes of thiophenylmethanamine derivatives. Eur J Med Chem 2013; 70:280-93. [DOI: 10.1016/j.ejmech.2013.10.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Revised: 10/01/2013] [Accepted: 10/07/2013] [Indexed: 11/29/2022]
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57
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Raman N, Rajakumar R. Bis-amide transition metal complexes: isomerism and DNA interaction study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 120:428-436. [PMID: 24211801 DOI: 10.1016/j.saa.2013.10.037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2013] [Revised: 10/01/2013] [Accepted: 10/09/2013] [Indexed: 06/02/2023]
Abstract
A quatridentate bis-amide ligand, N,N'-propylenebis(salicylamide) H2pbs, and its transition metal complexes [M(pbs)(H2O)2], where M=Co(II), Ni(II), Cu(II), and Zn(II) have been synthesized and characterized by elemental analysis, UV-Vis, IR, NMR, Mass, EPR, molar conductivity, magnetic moment values and thermal analysis. The NMR spectrum of ligand evidences the E/Z isomerism. All the evidences reveal that the metal ions adopt octahedral geometry with metal:ligand:solvent ratio 1:1:2. The conductivity measurements exhibit that the complexes are non-electrolytes. DNA binding properties of these complexes have been explored by UV-Vis and cyclic voltammetry. The results indicate that these complexes are good intercalators.
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Affiliation(s)
- Natarajan Raman
- Research Department of Chemistry, VHNSN College, Virudhunagar 626 001, India.
| | - Ramasubbu Rajakumar
- Research Department of Chemistry, VHNSN College, Virudhunagar 626 001, India
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58
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Santini C, Pellei M, Gandin V, Porchia M, Tisato F, Marzano C. Advances in Copper Complexes as Anticancer Agents. Chem Rev 2013; 114:815-62. [DOI: 10.1021/cr400135x] [Citation(s) in RCA: 1290] [Impact Index Per Article: 107.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Carlo Santini
- Scuola
di Scienze e Tecnologie−Sez. Chimica, Università di Camerino, via S. Agostino 1, 62032 Camerino, Macerata, Italy
| | - Maura Pellei
- Scuola
di Scienze e Tecnologie−Sez. Chimica, Università di Camerino, via S. Agostino 1, 62032 Camerino, Macerata, Italy
| | - Valentina Gandin
- Dipartimento
di Scienze del Farmaco, Università di Padova, via Marzolo
5, 35131 Padova, Italy
| | | | | | - Cristina Marzano
- Dipartimento
di Scienze del Farmaco, Università di Padova, via Marzolo
5, 35131 Padova, Italy
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59
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Pravin N, Raman N. DNA interaction and antimicrobial activity of novel tetradentate imino-oxalato mixed ligand metal complexes. INORG CHEM COMMUN 2013. [DOI: 10.1016/j.inoche.2013.08.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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60
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Chu W, Wang Y, Liu S, Yang X, Wang S, Li S, Zhou G, Qin X, Zhou C, Zhang J. Synthesis, cytotoxicity and DNA-binding properties of Pd(II), Cu(II) and Zn(II) complexes with 4′-(4-(2-(piperidin-1-yl)ethoxy)phenyl)-2,2′:6′,2″-terpyridine. Bioorg Med Chem Lett 2013; 23:5187-91. [DOI: 10.1016/j.bmcl.2013.07.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2013] [Revised: 06/20/2013] [Accepted: 07/04/2013] [Indexed: 12/11/2022]
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61
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Mathan Kumar S, Dhahagani K, Rajesh J, Nehru K, Annaraj J, Chakkaravarthi G, Rajagopal G. Synthesis, characterization, structural analysis and DNA binding studies of nickel(II)–triphenylphosphine complex of ONS donor ligand – Multisubstituted thiosemicarbazone as highly selective sensor for fluoride ion. Polyhedron 2013. [DOI: 10.1016/j.poly.2013.04.048] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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62
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Chen M, Chen MZ, Zhou CQ, Lin WE, Chen JX, Chen WH, Jiang ZH. Towards polynuclear metal complexes with enhanced bioactivities: Synthesis, crystal structures and DNA cleaving activities of CuII, NiII, ZnII, CoII and MnII complexes derived from 4-carboxy-1-(4-carboxybenzyl) pyridinium bromide. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2013.02.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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63
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Parveen S, Arjmand F, Mohapatra DK. Zinc(II) complexes of Pro-Gly and Pro-Leu dipeptides: synthesis, characterization, in vitro DNA binding and cleavage studies. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2013; 126:78-86. [PMID: 23911763 DOI: 10.1016/j.jphotobiol.2013.07.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Revised: 05/10/2013] [Accepted: 07/07/2013] [Indexed: 12/24/2022]
Abstract
Dipeptide (Pro-Gly and Pro-Leu) Zinc(II) complexes 1 and 2 were designed and synthesized for potential use as cancer chemotherapeutic agents. In order to augment the DNA recognition of metallonuclease activity, zinc metal ion was tethered to peptide motif to carry out DNA site specific hydrolytic cleavage. The structural formulation of the complexes 1 and 2 was done by elemental analysis, spectroscopic methods (IR, NMR, electronic) and molar conductance measurements. Their in vitro DNA binding profile was investigated by UV-vis titrations, fluorescence titrations and circular dichroism which revealed that these complexes bind to CT DNA by electrostatic interactions via groove binding mode. Zn(II) Pro-Gly complex 1 showed greater binding affinity to CT DNA as compared to the Zn(II) Pro-Leu complex 2 due to steric constraints in the latter. The supercoiled pBR322 DNA cleavage activity of complex 1, ascertained by gel electrophoresis demonstrated efficient DNA cleaving ability via hydrolytic mechanistic pathway. Further, the molecular docking studies confirmed that complex 1 bind to the minor groove of DNA having AT-rich sequences with relative binding energy of -196.72kJmol(-1).
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Affiliation(s)
- Shazia Parveen
- Department of Chemistry, Aligarh Muslim University, Aligarh 202 002, India
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64
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Thalamuthu S, Annaraj B, Vasudevan S, Sengupta S, Neelakantan M. DNA binding, nuclease, and colon cancer cell inhibitory activity of a Cu(II) complex of a thiazolidine-4-carboxylic acid derivative. J COORD CHEM 2013. [DOI: 10.1080/00958972.2013.791393] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- S. Thalamuthu
- a Chemistry Research Centre, National Engineering College , Kovilpatti , India
| | - B. Annaraj
- a Chemistry Research Centre, National Engineering College , Kovilpatti , India
| | - Smreti Vasudevan
- b Cancer Research Program-3, Rajiv Gandhi Centre for Biotechnology , Trivandrum , India
| | - Suparna Sengupta
- b Cancer Research Program-3, Rajiv Gandhi Centre for Biotechnology , Trivandrum , India
| | - M.A. Neelakantan
- a Chemistry Research Centre, National Engineering College , Kovilpatti , India
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65
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Arjmand F, Jamsheera A, Mohapatra DK. Synthesis, DNA recognition and cleavage studies of novel tetrapeptide complexes, Cu(II)/Zn(II)-Ala-Pro-Ala-Pro. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 108:151-158. [PMID: 23501933 DOI: 10.1016/j.saa.2013.01.059] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Revised: 12/11/2012] [Accepted: 01/17/2013] [Indexed: 06/01/2023]
Abstract
New tetrapeptide complexes Cu(II)·Ala-Pro-Ala-Pro (1) and Zn(II)·Ala-Pro-Ala-Pro (2) were synthesized from the reaction of tetrapeptide, Ala-Pro-Ala-Pro and CuCl2/ZnCl2 and were thoroughly characterized by elemental analysis, IR,(1)H and (13)C NMR (in case of 2), ESI-MS, UV and molar conductance measurements. The solution stability study was carried out employing UV-vis absorption titrations over a broad range of pH which suggested the stability of the complexes in solution. In vitro interaction of complexes 1 and 2 with CT-DNA was studied employing UV-vis, fluorescence, circular dichroic and viscometry studies. To throw insight into molecular binding event at the target site, UV-vis titrations of 1 and 2 with mononucleotides of interest viz.; 5'-GMP and 5'-TMP were carried out. Cleavage activity of the complexes with pBR322 plasmid DNA was evaluated by agarose gel electrophoresis and, the electrophoresis pattern demonstrated that both the complexes 1 and 2 are efficient cleavage agents. Further, the Cu(II) complex displayed efficient oxidative cleavage of supercoiled DNA while various reactive oxygen species are responsible for the cleavage in Zn(II) complex.
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Affiliation(s)
- Farukh Arjmand
- Department of Chemistry, Aligarh Muslim University, Aligarh 202 002, Uttar Pradesh, India.
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66
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Synthesis, characterization and in vitro DNA binding and cleavage studies of Cu(II)/Zn(II) dipeptide complexes. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2013; 121:75-85. [DOI: 10.1016/j.jphotobiol.2012.12.009] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2012] [Revised: 11/29/2012] [Accepted: 12/19/2012] [Indexed: 11/20/2022]
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67
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Lopez T, Ortiz-Islas E, Guevara P, Gómez E. Catalytic nanomedicine technology: copper complexes loaded on titania nanomaterials as cytotoxic agents of cancer cell. Int J Nanomedicine 2013; 8:581-92. [PMID: 23413123 PMCID: PMC3572821 DOI: 10.2147/ijn.s37118] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
The anticancer properties of pure copper (II) acetate and copper (II) acetylacetonate, alone and loaded on functionalized sol-gel titania (TiO2), were determined in four different cancer cell lines (C6, RG2, B16, and U373), using increasing concentrations of these compounds. The copper complexes were loaded onto the TiO2 network during its preparation by the solgel process. Once copper-TiO2 materials were obtained, these were characterized by several physical-chemical techniques. An in vitro copper complex–release test was developed in an aqueous medium at room temperature and monitored by ultraviolet spectroscopy. The toxic effect of the copper complexes, alone and loaded on TiO2, was determined using a cell viability 3(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide (MTT) assay, when cancer cells were treated with increasing concentrations (15.75–1000 mg/mL) of these. Characterization studies revealed that the addition of copper complexes to the TiO2 sol-gel network during its preparation, did not generate changes in the molecular structure of the complexes. The surface area, pore volume, and pore diameter were affected by the copper complex additions and by the crystalline phases obtained. The kinetic profiles of both copper complexes released indicated two different stages of release: The first one was governed by first-order kinetics and the second was governed by zero-order kinetics. The cell viability assay revealed a cytotoxic effect of copper complexes, copper-TiO2, and cisplatin in a dose-dependent response for all the cell lines; however, the copper complexes exhibited a better cytotoxic effect than the cisplatin compound. TiO2 alone presented a minor cytotoxicity for C6 and B16 cells; however, it did not cause any toxic effect on the RG2 and U373 cells, which indicates its high biocompatibility with these cells.
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Affiliation(s)
- Tessy Lopez
- Nanotechnology and Nanomedicine Laboratory, Metropolitan Autonomous University-Xochimilco, Coyoacán, México
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68
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Li GY, Du KJ, Wang JQ, Liang JW, Kou JF, Hou XJ, Ji LN, Chao H. Synthesis, crystal structure, DNA interaction and anticancer activity of tridentate copper(II) complexes. J Inorg Biochem 2013. [DOI: 10.1016/j.jinorgbio.2012.09.019] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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69
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Copper(II) complexes of terpyridine derivatives: A footstep towards development of antiproliferative agent for breast cancer. J Inorg Biochem 2012; 117:48-59. [DOI: 10.1016/j.jinorgbio.2012.08.010] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2012] [Revised: 08/14/2012] [Accepted: 08/14/2012] [Indexed: 11/17/2022]
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70
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Suntharalingam K, Hunt DJ, Duarte AA, White AJP, Mann DJ, Vilar R. A tri-copper(II) complex displaying DNA-cleaving properties and antiproliferative activity against cancer cells. Chemistry 2012; 18:15133-41. [PMID: 23059789 DOI: 10.1002/chem.201202482] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2012] [Indexed: 11/07/2022]
Abstract
A new disubstituted terpyridine ligand and the corresponding tri-copper(II) complex have been prepared and characterised. The binding affinity and binding mode of this tri-copper complex (as well as the previously reported mono- and di-copper analogues) towards duplex DNA were determined by using UV/Vis spectroscopic titrations and fluorescent indicator displacement (FID) assays. These studies showed the three complexes to bind moderately (in the order of 10(4) M(-1)) to duplex DNA (ct-DNA and a 26-mer sequence). Furthermore, the number of copper centres and the nature of the substituents were found to play a significant role in defining the binding mode (intercalative or groove binding). The nuclease potential of the three complexes was investigated by using circular plasmid DNA as a substrate and analysing the products by agarose-gel electrophoresis. The cleaving activity was found to be dependent on the number of copper centres present (cleaving potency was in the order: tri-copper>di-copper>mono-copper). Interestingly, the tri-copper complex was able to cleave DNA without the need of external co-reductants. As this complex displayed the most promising nuclease properties, cell-based studies were carried out to establish if there was a direct link between DNA cleavage and cellular toxicity. The tri-copper complex displayed high cytotoxicity against four cancer cell lines. Of particular interest was that it displayed high cytotoxicity against the cisplatin-resistant MOLT-4 leukaemia cell line. Cellular uptake studies showed that the tri-copper complex was able to enter the cell and more importantly localise in the nucleus. Immunoblotting analysis (used to monitor changes in protein levels related to the DNA damage response pathway) and DNA-flow cytometric studies suggested that this tri-copper(II) complex is able to induce cellular DNA damage.
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71
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Abdi K, Hadadzadeh H, Salimi M, Simpson J, Khalaji AD. A mononuclear copper(II) complex based on the polypyridyl ligand 2,4,6-tris(2-pyridyl)-1,3,5-triazine (tptz), [Cu(tptz)2]2+: X-ray crystal structure, DNA binding and in vitro cell cytotoxicity. Polyhedron 2012. [DOI: 10.1016/j.poly.2012.06.089] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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72
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Arjmand F, Parveen S, Mohapatra D. Synthesis, characterization of Cu(II) and Zn(II) complexes of proline-glycine and proline-leucine tetrapeptides: In vitro DNA binding and cleavage studies. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2012.03.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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73
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Naseri Z, Nemati Kharat A, Banavand A, Bakhoda A, Foroutannejad S. First row transition metal complexes of thienyl substituted terpyridine: Structural, photophysical and biological studies. Polyhedron 2012. [DOI: 10.1016/j.poly.2011.11.060] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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