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Yu L, Song Y, Bi J, Gao Y, Jiang C, Yang Z, Qi H, Yu H, Yang W, Gong Q, Shi C, Wang M. Exploring the potent hydrolytic activity of chitosan-cerium complex microspheres resin for organophosphorus pesticide degradation. Heliyon 2024; 10:e33642. [PMID: 39027539 PMCID: PMC11255554 DOI: 10.1016/j.heliyon.2024.e33642] [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: 03/18/2024] [Revised: 06/25/2024] [Accepted: 06/25/2024] [Indexed: 07/20/2024] Open
Abstract
Chitosan is a biocompatible, non-toxic and renewable natural basic polysaccharide that can be cross-linked and reacted with Ce(IV) to form a physiologically active chitosan-Ce(IV) complex. To investigate this novel complex and its potential to hydrolyze phosphate ester bonds, chitosan-cerium complex microspheres resin (CS-CCMR) was prepared from chitosan and ceric ammonium nitrate by reversed-phase suspension cross-linking polymerization. CS-CCMR was characterized, its ability to hydrolyze disodium p-nitrobenzene phosphate (PNPP2Na) and organophosphorus pesticides was investigated, and the hydrolytic mechanism was explored. CS-CCMR was composed of dark yellow microspheres with smooth surfaces and dense pores. It was found that CS-CCMR contained 4.507 mg/g Ce(IV), indicating that coordination polymerization between Ce(IV) and chitosan was successful. The presence of Ce(IV) in CS-CCMR was confirmed by multiple analytical methods and it was found that coordination of Ce(IV) by chitosan was mediated by the nitrogen atom of the amino group and the oxygen atom of the hydroxyl group of chitosan. It was shown that CS-CCMR efficiently hydrolyzed the phosphate ester bonds of PNPP2Na and five organophosphorus pesticides. Hydrolysis of PNPP2Na is potentially accomplished by charge neutralization and nucleophilic substitution. The mechanism of parathion degradation by CS-CCMR involves modification of the nitro group to give aminoparathion, followed by cleavage of the P-O bond to generate diazinphos. Consequently, the novel chitosan-Ce(IV) complex exhibits great efficiency for hydrolysis of phosphate ester bonds and CS-CCMR is expected to be developed as an agent to reduce the possibility of contamination of fruit and vegetable drinks by organophosphorus pesticides.
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Affiliation(s)
- Lina Yu
- Shandong Peanut Research Institute, Qingdao, 266100, PR China
| | - Yu Song
- Shandong Peanut Research Institute, Qingdao, 266100, PR China
| | - Jie Bi
- Shandong Peanut Research Institute, Qingdao, 266100, PR China
| | - Yuan Gao
- Shandong Peanut Research Institute, Qingdao, 266100, PR China
| | - Chen Jiang
- Shandong Peanut Research Institute, Qingdao, 266100, PR China
| | - Zhen Yang
- Shandong Peanut Research Institute, Qingdao, 266100, PR China
| | - Hongtao Qi
- College of Life Sciences, Qingdao University, Qingdao, 266071, PR China
| | - Honghua Yu
- Shandong Innovation and Entrepreneurship Community of Science and Technology Special Commissioner, Jinan, 250000, PR China
| | - Weiqiang Yang
- Shandong Peanut Research Institute, Qingdao, 266100, PR China
| | - Qingxuan Gong
- Shandong Peanut Research Institute, Qingdao, 266100, PR China
| | - Chengren Shi
- Shandong Peanut Research Institute, Qingdao, 266100, PR China
| | - Mingqing Wang
- Shandong Peanut Research Institute, Qingdao, 266100, PR China
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2
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Chang Q, Xie Y, Lu X, Zong Z, Zhang E, Cao S, Liang L. In vitro and in vivo antiproliferative activity on lung cancer of two acylhydrazone based zinc(II) complexes. Bioorg Chem 2024; 147:107422. [PMID: 38705106 DOI: 10.1016/j.bioorg.2024.107422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 04/19/2024] [Accepted: 04/29/2024] [Indexed: 05/07/2024]
Abstract
Two acylhydrazone based zinc(II) complexes [Zn(HL)2Cl2(CH3OH)2] (Zn1) and [ZnL(AC)]2 (Zn2) were synthesized from 3-(1-(salicyloylhydrazono)ethyl) pyridine (HL). Single crystal X-ray structure analyses showed that complexes Zn1 and Zn2 have a zero-dimensional monomer or dimer structure. Antiproliferative activity studies revealed that Zn1 and Zn2 are both more effective against A549 cells than cisplatin. The results of the reactive oxygen species (ROS) generation assay on A549 cells showed that both Zn1 and Zn2 induced apoptosis through ROS accumulation. The apoptosis-inducing and cell cycle arrest effects of Zn1 and Zn2 on A549 cells indicated that the antitumor effect was achieved through apoptosis induction and inhibition of DNA synthesis by blocking the G0/G1 phase of the cell cycle. What's more, the results of wound-healing assay showed that Zn1 and Zn2 could inhibit the migration of A549 cells. Western blot analysis further demonstrated that Zn1 and Zn2 induced cell apoptosis through the mitochondrial pathway, in which process, the expression level of cytochrome C, cleaved-PARP, cleaved-caspase 3 and cleaved-caspase 9 proteins increased while pro-caspase 3 and pro-caspase 9 expression decreased. In vivo anticancer evaluation demonstrated that both Zn1 and Zn2 complexes effectively inhibited tumor growth without causing significant toxicity in systemic organs.
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Affiliation(s)
- Qinghua Chang
- Department of Pharmaceutical Engineering, Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical University, Bengbu 233030, PR China.
| | - Yaqing Xie
- Department of Pharmaceutical Engineering, Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical University, Bengbu 233030, PR China.
| | - Xiaotong Lu
- Department of Pharmaceutical Engineering, Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical University, Bengbu 233030, PR China.
| | - Zhihui Zong
- Department of Pharmaceutical Engineering, Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical University, Bengbu 233030, PR China
| | - Enli Zhang
- Department of Pharmaceutical Engineering, Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical University, Bengbu 233030, PR China
| | - Shouying Cao
- Department of Pharmaceutical Engineering, Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical University, Bengbu 233030, PR China.
| | - Lili Liang
- Department of Pharmaceutical Engineering, Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical University, Bengbu 233030, PR China.
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Sambamoorthy S, Thamaraichelvan G, Karikalan A, Kumar SS. Heterocyclic fluorescent Schiff base chemosensors for the detection of Fe(III) and Cu(II) ions. LUMINESCENCE 2024; 39:e4739. [PMID: 38685743 DOI: 10.1002/bio.4739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 03/04/2024] [Accepted: 03/12/2024] [Indexed: 05/02/2024]
Abstract
Two new Schiff bases were synthesized from 1-(2,4-dihydroxyphenyl)ethanone and pyridine derivatives. Both compounds were characterized using infrared, UV-Vis., 1H NMR, 13C NMR and mass spectral studies. Density functional theory (DFT) calculations were performed for both the Schiff bases with 6-31G(d, p) as the basis set. Vibrational frequencies calculated using the theoretical method were in good agreement with the experimental values. Both the Schiff bases were highly fluorescent in nature. The cation-recognizing profile of the compounds was investigated in aqueous methanol medium. The Schiff base 4-(1-(pyridin-4-ylimino)ethyl)benzene-1,3-diol (PYEB) was found to interact with Fe(III) and Cu(II) ions, whereas the Schiff base 4,4'-((pyridine-2,3-diylbis(azanylylidene))bis(ethan-1-yl-1-ylidene))bis(benzene-1,3-diol) (PDEB) was found to detect Cu(II) ions. The mechanism of recognition was established as combined excited state intramolecular proton transfer (ESIPT)-chelation-enhanced fluorescence (CHEF) effect and chelation-enhanced quenching (CHEQ) process for the detection of Fe(III) and Cu(II) ions, respectively. The stability constant of the metal complexes formed during the sensing process was determined. The limit of detection for Fe(III) and Cu(II) ions with respect to Schiff base PYEB was found to be 1.64 × 10-6 and 2.16 × 10-7 M, respectively. With respect to Schiff base PDEB, the limit of detection for Cu(II) ion was found to be 4.54 × 10-4 M. The Cu(II) ion sensing property of the Schiff base PDEB was applied in bioimaging studies for the detection of HeLa cells.
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Affiliation(s)
- Santhi Sambamoorthy
- PG and Research Department of Chemistry, Seethalakshmi Ramaswami College, Affiliated to Bharathidasan University, Tiruchirappalli, India
| | - Geetha Thamaraichelvan
- PG and Research Department of Chemistry, Seethalakshmi Ramaswami College, Affiliated to Bharathidasan University, Tiruchirappalli, India
| | - Abinaya Karikalan
- PG and Research Department of Chemistry, Seethalakshmi Ramaswami College, Affiliated to Bharathidasan University, Tiruchirappalli, India
| | - Saranya Srinivasa Kumar
- PG and Research Department of Chemistry, Seethalakshmi Ramaswami College, Affiliated to Bharathidasan University, Tiruchirappalli, India
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Thanigachalam S, Pathak M. Bioactive O^N^O^ Schiff base appended homoleptic titanium(iv) complexes: DFT, BSA/CT-DNA interactions, molecular docking and antitumor activity against HeLa and A549 cell lines. RSC Adv 2024; 14:13062-13082. [PMID: 38655487 PMCID: PMC11034360 DOI: 10.1039/d3ra08574k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 04/06/2024] [Indexed: 04/26/2024] Open
Abstract
Five new homoleptic derivatives of titanium(iv) have been developed and characterized by physicochemical techniques. Metal complexes, TiH2L1 [(C38H26N6O4)Ti], TiH2L2 [(C38H24F2N6O4)Ti], TiH2L3 [(C38H24Cl2N6O4)Ti], TiH2L4 [(C38H24Br2N6O4)Ti] and TiH2L5 [(C38H24N8O8)Ti], were obtained by treating Ti(OPri)4 with appropriate ONO ligands (H2L1-H2L5) in anhydrous THF as solvent. The electronic structures and properties of titanium(iv) complexes (TiH2L1-TiH2L5) and ligands (H2L1-H2L5) were examined by DFT studies. The stability of all synthesized derivatives was assessed by a UV-visible technique using 10% DMSO, GSH medium and n-octanol/water systems. The binding interactions of BSA and CT-DNA with respective titanium(iv) complexes were successfully evaluated by employing UV-visible absorption, fluorescence, circular dichroism (CD) techniques and docking studies. The in vitro cytotoxicity of TiH2L2, TiH2L3 and TiH2L4 complexes was assessed against HeLa (human epithelioid cervical cancer cells) and A549 (lung carcinoma) cell lines. The IC50 values of TiH2L2, TiH2L3 and TiH2L4 were observed to be 28.8, 14.7 and 31.2 μg mL-1 for the HeLa cell line and 38.2, 32.9 and 67.78 μg mL-1 for A549 cells, respectively. Complex TiH2L3 exhibited remarkably induced cell cycle arrest in the G1 phase and 77.99% ROS production selectivity in the HeLa cell line.
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Affiliation(s)
- Sathish Thanigachalam
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology Vellore 632014 Tamilnadu India
| | - Madhvesh Pathak
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology Vellore 632014 Tamilnadu India
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Saeed AM, Taha AG, Dardeer HM, Aly MF. One-pot synthesis of novel chitosan-salicylaldehyde polymer composites for ammonia sensing. Sci Rep 2024; 14:239. [PMID: 38168141 PMCID: PMC10761969 DOI: 10.1038/s41598-023-50243-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 12/17/2023] [Indexed: 01/05/2024] Open
Abstract
Chitosan (Chs)-salicylaldehyde (Sal) polymer derivatives were formed via the reaction of Chs-Sal with zinc oxide nanoparticles (ZnO NPs) and beta-cyclodextrin (β-CD). These polymers were synthesized through inclusion with β-CD and doping with ZnO NPs to give pseudopolyrotaxane and Chs-Sal/ZnO NPs composite, respectively, for low-temperature detection and sensing of NH3 vapors as great significance in environmental control and human health. Additionally, the polymer (Chs-Sal/β-CD/ZnO NPs) was prepared via the insertion of generated composite (Chs-Sal/ZnO NPs) through β-cyclodextrin ring. The structural and morphological characterizations of the synthesized derivatives were confirmed by utilizing FTIR, XRD and, SEM, respectively. Also, the optical properties and thermal gravimetric analysis (TGA) of the synthesized polymers were explored. The obtained results confirmed that using β-CD or ZnO NPs for modification of polymer (Chs-Sal) dramatically enhanced thermal stability and optical features of the synthesized polymers. Investigations on the NH3-sensing properties of Chs-Sal/β-CD/ZnO NPs composite were carried out at concentrations down to 10 ppm and good response and recovery times (650 s and 350 s, respectively) at room temperature (RT) and indicated that modification by β-CD and doping with ZnO NPs effectively improves the NH3-sensing response of Chs-Sal from 712 to 6192 using Chs-Sal/β-CD/ZnO NPs, respectively, with low LOD and LOQ of 0.12 and 0.4 ppb, respectively.
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Affiliation(s)
- Ahmed Muhammed Saeed
- Department of Chemistry, Faculty of Science, Al-Azhar University, Cairo, 11884, Egypt.
| | - Ahmed Gaber Taha
- Department of Chemistry, Faculty of Science, South Valley University, Qena, 83523, Egypt
| | - Hemat Mohamed Dardeer
- Department of Chemistry, Faculty of Science, South Valley University, Qena, 83523, Egypt
| | - Moustafa Fawzy Aly
- Department of Chemistry, Faculty of Science, South Valley University, Qena, 83523, Egypt.
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Kumar B, Devi J, Dubey A, Tufail A, Antil N. Biological and computational investigation of transition metal(II) complexes of 2-phenoxyaniline-based ligands. Future Med Chem 2023; 15:1919-1942. [PMID: 37929611 DOI: 10.4155/fmc-2023-0046] [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] [Indexed: 11/07/2023] Open
Abstract
Aim: In the 21st century, we are witness of continuous onslaughts of various pathogen deformities which are a major cause of morbidity and mortality worldwide. Therefore, to investigate the grave for these deformities, antioxidant, anti-inflammatory and antimicrobial biological activities were carried out against newly synthesized Schiff base ligands and their transition metal complexes, which are based on newly synthesized 2-phenoxyaniline and salicylaldehyde derivatives. Materials & methods: The synthesized compounds were characterized by various physiochemical studies, demonstrating the octahedral stereochemistry of the complexes. Results: The biological assessments revealed that complex 6 (3.01 ± 0.01 μM) was found to be highly active for oxidant ailments whereas complex 14 (7.14 ± 0.05 μM, 0.0041-0.0082 μmol/ml) was observed as highly potent for inflammation and microbial diseases. Conclusion: Overall, the biological and computational studies demonstrate that the nickel(II) complex 14 can act as an excellent candidate for pathogen deformities.
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Affiliation(s)
- Binesh Kumar
- Department of Chemistry, Guru Jambheshwar University of Science & Technology, Hisar, Haryana, 125001, India
| | - Jai Devi
- Department of Chemistry, Guru Jambheshwar University of Science & Technology, Hisar, Haryana, 125001, India
| | - Amit Dubey
- Department of Pharmacology, Saveetha Dental College & Hospital, Saveetha Institute of Medical & Technical Sciences, Chennai, Tamil Nadu, 600077, India
- Department of Computational Chemistry & Drug Discovery Division, Quanta Calculus, Greater Noida, Uttar Pradesh, 201310, India
| | - Aisha Tufail
- Department of Computational Chemistry & Drug Discovery Division, Quanta Calculus, Greater Noida, Uttar Pradesh, 201310, India
| | - Nidhi Antil
- Department of Chemistry, Maharshi Dayanand University, Rohtak, Haryana, 124001, India
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Ouyang R, Wang S, Feng K, Liu C, Silva DZ, Chen Y, Zhao Y, Liu B, Miao Y, Zhou S. Potent saccharinate-containing palladium(II) complexes for sensitization to cancer therapy. J Inorg Biochem 2023; 244:112205. [PMID: 37028114 DOI: 10.1016/j.jinorgbio.2023.112205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 03/27/2023] [Accepted: 03/29/2023] [Indexed: 04/07/2023]
Abstract
Palladium(II) (PdII) complexes are among the most promising anticancer compounds. Both 2`-benzoylpyridine thiosemicarbazone (BpT) and saccharinate (Sac) are efficient metal chelators with potent anticancer activity. To explore a more effective new anticancer drug, we synthesized a series of Sac and BpT-containing PdII complexes coordinated with thiosemicarbazone (TSC)-derived ligands, and characterized them through nuclear magnetic resonance (NMR), Fourier transformed infrared spectroscopy (FT-IR), elemental analysis, ultraviolet-visible spectroscopy (UV-Vis) and thermogravimetric analysis (TGA). Each target complex was composed of PdII, BpT, and one or two Sac molecules. Both the in vitro and in vivo anti-growth effects of those ligands and the obtained PdII complexes were investigated in the human lung adenocarcinoma cell lines A549 and Spc-A1. The coordination of PdII with the TSC-derivatives and Sac resulted in clearly greater anticancer activity than single ligands. These compounds were demonstrated to be safe for 293 T normal human kidney epithelial cells. The introduction of Sac into the TSC-derived PdII complex significantly enhanced anti-growth effects, and induced apoptosis of human lung cancer cells in vitro and in vivo in a dose dependent manner. Moreover, the PdII complex containing two Sac molecules showed the most promising therapeutic effects, thereby confirming that Sac increases the cancer therapeutic efficacy of PdII complexes and providing a new strategy for exploring anticancer drugs for potential clinical treatment.
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Comprehensive Assessment of Biomolecular Interactions of Morpholine-Based Mixed Ligand Cu(II) and Zn(II) Complexes of 2,2'-Bipyridine as Potential Anticancer and SARS-CoV-2 Agents: A Synergistic Experimental and Structure-Based Virtual Screening. Bioinorg Chem Appl 2022; 2022:6987806. [PMID: 36545430 PMCID: PMC9763021 DOI: 10.1155/2022/6987806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 11/06/2022] [Accepted: 11/10/2022] [Indexed: 12/14/2022] Open
Abstract
A new class of pharmacologically active mixed-ligand complexes (1a-2a) [MII(L)2 (bpy)], where L = 2-(4-morpholinobenzylideneamino)phenol), bpy = 2,2'-bipyridine, MII = Cu (1a), and Zn (2a), were assigned an octahedral geometry by analytical and spectral measurements. Gel electrophoresis showed that complex (1a) demonstrated the complete DNA cleavage mediated by H2O2. The overall DNA-binding constants observed from UV-vis, fluorometric, hydrodynamic, and electrochemical titrations were in the following sequence: (1a) > (2a) > (HL), which suggests that the complexes might intercalate DNA, a possibility that is further supported by the biothermodynamic characteristics. The binding constant results of BSA by electronic absorption and fluorometric titration demonstrate that complex (1a) exhibits the highest binding effectiveness among others, which means that all compounds could interact with BSA through a static approach, additionally supported by FRET measurements. Density FunctionalTheory (DFT) and molecular docking calculations were relied on to unveil the electronic structure, reactivity, and interacting capability of all substances with DNA, BSA, and SARS-CoV-2 main protease (Mpro). These observed binding energies fell within the following ranges: -7.7 to -8.6, -7.2 to -10.2, and -6.7 to -8.2 kcal/mol, respectively. The higher reactivity of the complexes compared to free ligand is supported by the Frontier MolecularOrbital (FMO) theory. The in vitro antibacterial, cytotoxic, and radical scavenging characteristics revealed that complex (1a) has the best biological efficacy compared to others. This is encouraged because all experimental findings are closely correlated with the theoretical measurements.
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Fabrication of Biologically Active Fish Bone Derived Hydroxyapatite and Montmorillonite Blended Sodium Alginate Composite for In-Vitro Drug Delivery Studies. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02401-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Fouad R, Shebl M, Saif M, Gamal S. Novel copper nano-complex based on tetraazamacrocyclic backbone: Template synthesis, structural elucidation, cytotoxic, DNA binding and molecular docking studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132021] [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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Venkateswarlu K, Rambabu A, Shankar DS, Lakshmi PVA, Shivaraj. A Treatise on Furan Cored Schiff Base Cu(II), Ni(II) and Co(III) Complexes Accentuating Their Biological Efficacy: Synthesis, Thermal and Spectroscopic Characterization, DNA Interactions, Antioxidant and Antibacterial Activity Studies. Chem Biodivers 2022; 19:e202100686. [PMID: 35137530 DOI: 10.1002/cbdv.202100686] [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: 08/23/2021] [Accepted: 01/14/2022] [Indexed: 02/04/2023]
Abstract
Three metal complexes [Cu(FMIMDIP)2 ] (1), [Ni(FMIMDIP)2 ] (2) and [Co(FMIMDIP)3 ] (3) where, FMIMDIP=(((furan-2-yl)methylimino)methyl)-4,6-diiodophenol, were synthesized and characterized by various spectroscopy. The analytical data revealed a square planar geometry for 1 and 2 and an octahedral geometry for 3. The kinetic and thermodynamic parameters of the thermal decomposition steps were calculated from the thermograms. The quantum chemical parameters have been calculated using HOMO-LUMO energies and reveal the stability of the complexes. The DNA interaction of 1-3 towards calf-thymus DNA was investigated by absorption titration, fluorescence spectroscopy and gel electrophoresis. All the complexes bind to DNA via intercalation mode with binding constant (Kb ) values of 4.17×103 M-1 to 5.9×104 M-1 and also effectively cleave pBR322 DNA by oxidative and photolytic techniques. The synergistic action of metal chelates with ascorbic acid induced the generation of free radicals. The antibacterial activity of 1-3 was tested against B. thuringiensis, S. pneumoniae, E. coli, and P. putida. Complex 3 has the best activity among all the complexes.
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Affiliation(s)
| | - Aveli Rambabu
- Department of Science and Humanities, St. Martin's Engineering College, Dhulapally, Hyderabad, Telangana, 500100, India
| | - Dasari Shiva Shankar
- Department of Chemistry, Osmania University, Hyderabad, Telangana, 500007, India
| | - P V Anantha Lakshmi
- Department of Chemistry, Osmania University, Hyderabad, Telangana, 500007, India
| | - Shivaraj
- Department of Chemistry, Osmania University, Hyderabad, Telangana, 500007, India
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Venkateswarlu K, Anantha Lakshmi PV, Shivaraj. Synthesis, spectroscopic and thermal studies of Cu
+2
, Ni
+2
and Co
+3
complexes of Schiff base containing furan moiety. Antitumor, antioxidant, antibacterial and DNA interaction studies. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6530] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
| | | | - Shivaraj
- Department of Chemistry Osmania University Hyderabad Telangana India
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Rajakkani P, Alagarraj A, Gurusamy Thangavelu SA. Tetraaza macrocyclic Schiff base metal complexes bearing pendant groups: Synthesis, characterization and bioactivity studies. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108989] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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14
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Kalaivanan C, Sankarganesh M, Suvaikin MY, Karthi GB, Gurusamy S, Subramanian R, Asha RN. Novel Cu(II) and Ni(II) complexes of nicotinamide based Mannich base: Synthesis, characterization, DFT calculation, DNA binding, molecular docking, antioxidant, antimicrobial activities. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114423] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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