1
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Faris Kayed S. Metal complexes of azo compounds: Synthesis, characterization, molecular modeling and degradation study by gamma radiation. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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2
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Synthesis & characterization of heterocyclic disazo - azomethine dyes and investigating their molecular docking & dynamics properties on acetylcholine esterase (AChE), heat shock protein (HSP90α), nicotinamide N-methyl transferase (NNMT) and SARS-CoV-2 (2019-nCoV, COVID-19) main protease (Mpro). J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131974] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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3
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Experimental and theoretical studies of azo derivatives in terms of different donors, acceptors and position isomerism: Synthesis, characterization and a combined electronic absorption, electrochemical and DFT study. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131621] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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4
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Kannigadu C, Aucamp J, N'Da DD. Synthesis and in vitro antileishmanial efficacy of benzyl analogues of nifuroxazide. Drug Dev Res 2020; 82:287-295. [PMID: 33141473 DOI: 10.1002/ddr.21755] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/12/2020] [Accepted: 10/16/2020] [Indexed: 12/22/2022]
Abstract
Leishmaniasis is a vector-borne parasitic disease that mostly affects populations in tropical and subtropical countries. There is currently no vaccine to protect against and only a handful of drugs are available to treat this disease. Leishmaniasis is curable, but its eradication and elimination are hindered by the emergence of multidrug resistant strains of the causative pathogens, accentuating the need for new and effective antileishmanial drugs. In search for such agents, nifuroxazide, a clinical antibiotic, was evaluated through investigation of its benzyl analogues for in vitro antileishmanial efficacy against promastigotes of various Leishmania (L.) strains. The monobenzylated analogues 1 and 2 were the most potent of all, possessing nanomolar activities up to 10-fold higher than the parent drug nifuroxazide against all three tested Leishmania strains. Both analogues stand as antipromastigote hits for further lead investigation into their potential to act as new antileishmanial agents.
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Affiliation(s)
- Christina Kannigadu
- Centre of Excellence for Pharmaceutical Sciences, North-West University, Potchefstroom, South Africa
| | - Janine Aucamp
- Centre of Excellence for Pharmaceutical Sciences, North-West University, Potchefstroom, South Africa
| | - David D N'Da
- Centre of Excellence for Pharmaceutical Sciences, North-West University, Potchefstroom, South Africa
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5
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Wang J, Sui Q, Lyu S, Huang Y, Huang S, Wang B, Xu D, Zhao W, Kong M, Zhang Y, Hou S, Yu G. Source apportionment of phenolic compounds based on a simultaneous monitoring of surface water and emission sources: A case study in a typical region adjacent to Taihu Lake watershed. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 722:137946. [PMID: 32208277 DOI: 10.1016/j.scitotenv.2020.137946] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 03/12/2020] [Accepted: 03/13/2020] [Indexed: 06/10/2023]
Abstract
A comprehensive characterisation of four phenolic compounds in surface water and various emission sources was conducted simultaneously in a typical industrial city upstream of the Taihu Lake watershed. The overall concentrations of the target compounds ranged from 0.15 to 2.75 μg/L in the surface water and from 0.43 to 377 μg/L in the emission sources. Relatively high concentration levels were observed in August, during which the rainy season typically occurred in the study area, indicating seasonal emission sources. The spatial distribution revealed severe phenolic-compound contamination in the northeast part of the study area. According to the relationships between the surface water and emission sources, combined-sewer overflow and surface runoff from agricultural activities were identified as seasonal emission sources that were responsible for the increased concentration levels in wet seasons. Indirect discharge of industrial wastewater was proposed as a persistent emission source responsible for the severe contamination level in the northeast region over the entire sampling period, accounting for 16.5% of the phenolic-compound load in a demonstration river section. The findings of this study are useful for identifying the sources of phenolic compounds and controlling the contamination from the main sources in a typical industrial city.
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Affiliation(s)
- Jiaqi Wang
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resources and Environmental Engineering, East China University of Science and Technology, 200237 Shanghai, China
| | - Qian Sui
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resources and Environmental Engineering, East China University of Science and Technology, 200237 Shanghai, China; Shanghai Institute of Pollution Control and Ecological Security, 200092 Shanghai, China.
| | - Shuguang Lyu
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resources and Environmental Engineering, East China University of Science and Technology, 200237 Shanghai, China; Shanghai Institute of Pollution Control and Ecological Security, 200092 Shanghai, China
| | - Yunzhu Huang
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resources and Environmental Engineering, East China University of Science and Technology, 200237 Shanghai, China
| | - Shaoxin Huang
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resources and Environmental Engineering, East China University of Science and Technology, 200237 Shanghai, China
| | - Bin Wang
- Beijing Key Laboratory for Emerging Organic Contaminants Control, Tsinghua University, 100084 Beijing, China
| | - Dongjiong Xu
- Key Laboratory for Aquatic Biomonitoring Jiangsu Environmental Protection, Changzhou Environmental Monitoring Center of Jiangsu Province, 213001, Jiangsu, China
| | - Wentao Zhao
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 200092 Shanghai, China
| | - Ming Kong
- Ministry of Ecology and Environment, Nanjing Institute of Environmental Sciences, 210042 Nanjing, China
| | - Yimin Zhang
- Ministry of Ecology and Environment, Nanjing Institute of Environmental Sciences, 210042 Nanjing, China
| | - Shuang Hou
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resources and Environmental Engineering, East China University of Science and Technology, 200237 Shanghai, China
| | - Gang Yu
- Beijing Key Laboratory for Emerging Organic Contaminants Control, Tsinghua University, 100084 Beijing, China
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Ghanavatkar CW, Mishra VR, Sekar N. Benzothiazole-pyridone and benzothiazole-pyrazole clubbed emissive azo dyes and dyeing application on polyester fabric: UPF, biological, photophysical and fastness properties with correlative computational assessments. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 230:118064. [PMID: 31955124 DOI: 10.1016/j.saa.2020.118064] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 01/07/2020] [Accepted: 01/10/2020] [Indexed: 06/10/2023]
Abstract
Positional isomers of benzothiazole-pyridone and benzothiazole-pyrazole containing disperse azo dyes are reported. These heterocyclic azo dyes are decorated with 'separate ESIPT core' and show emission in seven solvents of different polarity. After application on polyester fabric, "very good to excellent" light and washing fastness properties were observed. Thermal stability of 'dyed fabric' was analysed by sublimation fastness test- and found 'very good to excellent' ratings at 210 °C. Ultraviolet Protection Factor (UPF) analysis of four 'dyed fabric' indicates the blocking 96-97% of UV radiation. Dyes were found effective on gram positive and negative bacteria by agar diffusion method and all the 'dyed fabrics' also showed more than 92% or 94% reduction of S. aureus or K. pneumoniae respectively by 'AATCC 100' method. Structures of the dyes were optimized using Density Functional Theory (DFT) to deduce stable tautomeric form. Calculated HOMO-LUMO gap is then compared with antibacterial activities. Electrophilicity index and lightfastness property were also compared and found to have very good correlation.
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Affiliation(s)
- Chaitannya W Ghanavatkar
- Department of Dyestuff Technology, Institute of Chemical Technology, Matunga (E), Mumbai 400 019, Maharashtra, India
| | - Virendra R Mishra
- Department of Dyestuff Technology, Institute of Chemical Technology, Matunga (E), Mumbai 400 019, Maharashtra, India
| | - Nagaiyan Sekar
- Department of Dyestuff Technology, Institute of Chemical Technology, Matunga (E), Mumbai 400 019, Maharashtra, India.
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Tasli PT, Atay ÇK, Demirturk T, Tilki T. Experimental and computational studies of newly synthesized azo dyes based materials. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127098] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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8
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Silva CJD, Lima LHFD, Paiva PMD, Maia LM, Rocha REDO, Souza PTDD, Carvalho DADCA. An inexpensive and environmentally friendly staining method for semi-permanent slides from plant material probed using anatomical and computational chemistry analyses. RODRIGUÉSIA 2020. [DOI: 10.1590/2175-7860202071024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract One of the main methods for plant anatomy study is the analysis of thin, transparent, and stained tissue sections. Synthetic dyes traditionally used in anatomical studies might be expensive and produced by specific companies. In contrast, the use of alternative industrial dyes can both represent an inexpensive substitute as well as an environmentally friendly option for conducting plant anatomy studies. In this study, a set of 22 textile dyes was evaluated. Transversal-, longitudinal, and paradermal sections of plant organs obtained using the freehand cutting technique were stained using hydroalcoholic solution (0 to 100%) of textile dyes purchased from a local market. Dyes mixed with 50% hydroalcoholic solution showed higher efficiency in tissue contrast, allowing greater solubility of dye powder and better solution interaction with the plant tissues. Most of the tested dyes showed satisfactory staining results. Cell wall, especially lignified one, showed higher staining efficiency. Computational docking analysis and molecular models of cellulose and lignin showed the probable association mechanisms and dye selectivity to cell wall constituents. Our findings suggest that the developed method can be useful in mixed practical classes of plant anatomy, chemistry, and/or biochemistry, both at high school as well as undergraduate levels.
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Mishra VR, Ghanavatkar CW, Sekar N. UV protective heterocyclic disperse azo dyes: Spectral properties, dyeing, potent antibacterial activity on dyed fabric and comparative computational study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 223:117353. [PMID: 31306957 DOI: 10.1016/j.saa.2019.117353] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 06/28/2019] [Accepted: 07/07/2019] [Indexed: 06/10/2023]
Abstract
Disperse azo dyes are synthesized and characterized by 1H NMR, 13C NMR, LC-MS, Elemental analysis, UV-visible, and fluorescence spectroscopy methods. The azo dyes show absorption maxima in the range of 460-493 nm. Dye with benzothiazole moiety i.e. VM7a and VM8a show a bathochromic shift in absorption maxima of 90 and 26 nm respectively in a polar aprotic solvent (i.e. DMF, DMSO). The dyes show deep red emission in a polar aprotic solvent (i.e. DMF, DMSO) with a Stokes shift of 62 to 180 nm. The dyes are applied on polyester fabric and the dyed fabric exhibit excellent to a good wash and sublimation fastness property. They show a very good UPF rating and almost blocking 95 to 98% of harmful UV radiation. Antibacterial activity of dyed polyester fabric is assessed qualitatively and quantitatively by using AATCC 147 and 100 test method respectively. The dyed fabrics exhibit excellent antibacterial activities against S.aureus (Gram-positive) and K. pneumoniae (Gram-negative). DFT method was used to identify the stable conformer. HOMO-LUMO gap and global reactivity descriptors were calculated using DFT method and correlated with antibacterial activities and light fastness properties respectively.
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Affiliation(s)
- Virendra R Mishra
- Department of Dyestuff Technology, Institute of Chemical Technology, Matunga (E), Mumbai 400 019, Maharashtra, India
| | - Chaitannya W Ghanavatkar
- Department of Dyestuff Technology, Institute of Chemical Technology, Matunga (E), Mumbai 400 019, Maharashtra, India
| | - Nagaiyan Sekar
- Department of Dyestuff Technology, Institute of Chemical Technology, Matunga (E), Mumbai 400 019, Maharashtra, India.
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A series of new acid dyes; study of solvatochromism, spectroscopy and their application on wool fabric. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.05.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Catalytic approach green synthesis, characterization and electrochemical studies of heterocyclic azo dye derived from 5-amino-1,3,4-thiadiazole-2-thiol. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.10.156] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Publisher’s Note. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.08.091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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13
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Malik NH, Zain H, Ali N. Organismic-level acute toxicology profiling of reactive azo dyes. ENVIRONMENTAL MONITORING AND ASSESSMENT 2018; 190:612. [PMID: 30259157 DOI: 10.1007/s10661-018-6986-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 09/18/2018] [Indexed: 06/08/2023]
Abstract
In the present study, organismic-level acute toxicology profile of three reactive azo dyes, viz. Reactive Blue 221, Reactive Red 195, and Reactive Yellow 145, was investigated, by using bacterial (Pseudomonas aeruginosa, Escherichia coli, Klebsiella pneumoniae, Staphylococcus aureus, Listeria monocytogenes, and Bacillus subtilis), fungal (Trichoderma asperellum, Aspergillus flavus, Fusarium fujikuroi, and Rhizoctonia solani), plant (Raphanus sativus, Triticum aestivum, Sorghum bicolor, and Phaseolus mungo), and aquatic (Artemia salina and Daphnia magna) specimens. Microbial test organisms (all the six bacteria and two fungi, i.e., T. asperellum and A. flavus) and D. magna were found to be relatively more sensitive towards the reactive azo dyes and their mixture, as the EC50 values were in the range of 80-330, 135-360, and 108-242 ppm for bacteria, fungi, and D. magna, respectively (but the effect was not acutely toxic). Moreover, the effect of dye mixture was comparable tothe individual dyes in almost all the tested microbial specimens. For plant seeds, the dye mixture was found to be relatively more inhibitory towards T. aestivum and R. sativus than the individual dyes. For S. bicolor and P. mungo seeds, the effect of the dye mixture was almost identical to the individual dyes. However, in all cases, EC50 values were in the range of 950-3500 ppm, which indicates a non-toxic effect on plant seed germination potential. Likewise, the dyes and their mixture were not acutely toxic for Artemia salina larvae (more sensitive to the dye mixture) and Daphnia magna neonates (EC50, 516-950 and 108-242 ppm, respectively).
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Affiliation(s)
| | - Hajira Zain
- Department of Microbiology, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Naeem Ali
- Department of Microbiology, Quaid-i-Azam University, Islamabad, 45320, Pakistan.
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Yahyazadeh A, Abbaspour-Gilandeh E, Aghaei-Hashjin M. Four-Component Synthesis of 2-Amino-3-Cyanopyridine Derivatives Catalyzed by Cu@imineZCMNPs as a Novel, Efficient and Simple Nanocatalyst Under Solvent-Free Conditions. Catal Letters 2018. [DOI: 10.1007/s10562-018-2318-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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15
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Atay ÇK, Kara Y, Gökalp M, Kara I, Tilki T, Karci F. Disazo dyes containing pyrazole and indole moieties: Synthesis, characterization, absorption characteristics, theoretical calculations, structural and electronic properties. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.01.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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16
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Synthesis and investigation of antimicrobial activity and spectrophotometric and dyeing properties of some novel azo disperse dyes based on naphthalimides. Biotechnol Prog 2015; 31:1086-95. [DOI: 10.1002/btpr.2107] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Revised: 04/11/2015] [Indexed: 11/07/2022]
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Karabacak Ç, Dilek O. Synthesis, solvatochromic properties and theoretical calculation of some novel disazo indole dyes. J Mol Liq 2014. [DOI: 10.1016/j.molliq.2014.09.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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18
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Yahyazadeh A, Yousefi H. Synthesis, spectral features and biological activity of some novel hetarylazo dyes derived from 8-chloro-4-hydroxyl-2-quinolone. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 117:696-701. [PMID: 24140457 DOI: 10.1016/j.saa.2013.09.046] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Revised: 08/30/2013] [Accepted: 09/07/2013] [Indexed: 06/02/2023]
Abstract
In this study, 8-chloro-4-hydroxyl-2-quinolone was synthesized from cyclocondensation of corresponding dianilide and subsequently used as a potent coupling component with some diazotized heterocyclic amines. These compounds were characterized by UV-vis, FT-IR, (1)H NMR spectroscopic techniques and elemental analysis. Absorption spectra of these dyes were measured in six polar solvents and discussed with respect to the nature of solvents and substituted groups. The effects of acid, base, temperature and concentration on the visible absorption spectra of the dyes were reported. In addition, the antimicrobial activity of the dyes was explored in detail.
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Affiliation(s)
- Asieh Yahyazadeh
- Department of Chemistry, Faculty of Sciences University of Guilan, Rasht, Iran.
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Karcı F, Karcı F, Demirçalı A, Yamaç M. Synthesis, solvatochromic properties and antimicrobial activities of some novel pyridone-based disperse disazo dyes. J Mol Liq 2013. [DOI: 10.1016/j.molliq.2013.08.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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