Bulletin of the Chemical Society of Ethiopia最新文献_第6页

Synthesized and hypothesized schiff base ligand and its metal(II) complexes DNA binding mode 合成和假设的希夫碱配体及其金属(II)配合物DNA结合模式

IF 1.2 4区化学

Bulletin of the Chemical Society of Ethiopia Pub Date : 2023-06-30 DOI: 10.4314/bcse.v37i5.6

G. Puthilibai, V. Devatarika, Byeon Haewon, Shyam Sundar Behura, Hitendra Kumar Lautre, V. Subha, P. Sangwan, J. Sunil

{"title":"Synthesized and hypothesized schiff base ligand and its metal(II) complexes DNA binding mode","authors":"G. Puthilibai, V. Devatarika, Byeon Haewon, Shyam Sundar Behura, Hitendra Kumar Lautre, V. Subha, P. Sangwan, J. Sunil","doi":"10.4314/bcse.v37i5.6","DOIUrl":"https://doi.org/10.4314/bcse.v37i5.6","url":null,"abstract":"ABSTRACT. Metal complexes play an important role in agriculture, pharmacology, medicine, and industrial chemistry. Schiff base metal compounds are the fusion products of propene and aldehydes, require a metal surrounded by an ion or cluster of molecules to form. Metal complexes of Co(II), Ni(II), Cu(II), and Zn(II) have also been created. Elemental analysis is used to analyses the structure and related compounds of the produced Schiff base ligand. According to deoxyribose nucleic acid (DNA) binding tests, Schiff base metal(II) complexes attach to DNA in an intercalative form with weak covalent connections. The predicted DNA binding mode supports an increase in the complexes' binding activity in the presence of newly generated ligand. The cleavage activities of the DNA were recorded using gel-electrophoresis in the presence and absence of the complexes. The findings of the cleavage experiment show that all of the produced chelates can successfully cut DNA. \u0000 \u0000KEY WORDS: Schiff base ligand, DNA, Metal(II) complex, Hetero-ligand cobalt(II), Aldehydes \u0000Bull. Chem. Soc. Ethiop. 2023, 37(5), 1133-1139. \u0000DOI: https://dx.doi.org/10.4314/bcse.v37i5.6","PeriodicalId":9501,"journal":{"name":"Bulletin of the Chemical Society of Ethiopia","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46115723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effervescence-assisted dispersive liquid-liquid microextraction for extraction and preconcentration of organochlorine pesticides in water samples 泡腾辅助分散液液微萃取法提取和预富集水样中有机氯农药

IF 1.2 4区化学

Bulletin of the Chemical Society of Ethiopia Pub Date : 2023-06-30 DOI: 10.4314/bcse.v37i5.4

Bereket Tesfaye, Tsegaye Girma Asere, Guyo Jilo Molole, A. Gure

{"title":"Effervescence-assisted dispersive liquid-liquid microextraction for extraction and preconcentration of organochlorine pesticides in water samples","authors":"Bereket Tesfaye, Tsegaye Girma Asere, Guyo Jilo Molole, A. Gure","doi":"10.4314/bcse.v37i5.4","DOIUrl":"https://doi.org/10.4314/bcse.v37i5.4","url":null,"abstract":"ABSTRACT. In this paper, effervescence-assisted dispersive liquid-liquid microextraction method has been developed for the extraction and preconcentration of organochlorine pesticides in water samples before their determination by gas chromatography-mass spectrometry. The method involves in-situ generation of CO2 bubbles to induce dispersion of the extraction solvent in the aqueous sample. Different parameters affecting the extraction efficiency of the method including the type and concentration of the effervescent agents as well as the type and volume of extraction solvent were optimized. Under optimum conditions, matrix matched calibration curves were constructed at eight concentrations ranging from 0.6–4.0 ng/mL showed good linearity with coefficient of determinations of ≥ 0.9961. The limits of detections and quantifications ranged from 0.2–0.4 and 0.6–1.0 ng/mL, respectively. The intra- and inter-day precisions studied at two concentration levels had below 5% relative standard deviation values. Similarly, recoveries investigated at two concentration levels ranged from 80.7–117.4%. The findings demonstrated that proposed method is simple, rapid, and efficient to be used as alternative method for analysis of organochlorine pesticides from environmental water and other similar matrices. \u0000 \u0000KEY WORDS: Effervescence agents, CO2 bubbles, Organochlorine pesticides, Water samples, gas chromatography-mass spectroscopy \u0000 \u0000Bull. Chem. Soc. Ethiop. 2023, 37(5), 1109-1122. \u0000DOI: https://dx.doi.org/10.4314/bcse.v37i5.4 ","PeriodicalId":9501,"journal":{"name":"Bulletin of the Chemical Society of Ethiopia","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47640025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A convenient one pot synthesis, crystal structure and chemiluminescence of S,S-diphenyl ethanebis(thioate) compound 一种简便的一锅法合成S,S-二苯基乙二(硫酸盐)化合物的晶体结构和化学发光性能

IF 1.2 4区化学

Bulletin of the Chemical Society of Ethiopia Pub Date : 2023-06-30 DOI: 10.4314/bcse.v37i5.11

Ruiji Li, Q. Fang, Bingzhao Mou, Minghui Chen, Qiwen Tang, B. Shen, Dong Wang, Wei Li

{"title":"A convenient one pot synthesis, crystal structure and chemiluminescence of S,S-diphenyl ethanebis(thioate) compound","authors":"Ruiji Li, Q. Fang, Bingzhao Mou, Minghui Chen, Qiwen Tang, B. Shen, Dong Wang, Wei Li","doi":"10.4314/bcse.v37i5.11","DOIUrl":"https://doi.org/10.4314/bcse.v37i5.11","url":null,"abstract":"ABSTRACT. A compound S,S-bis(2-(prop-1-yn-1-yl)phenyl) ethanebis(thioate) is synthesized through one-pot synthesis. The lithiation reaction of 3-bromo-2-methylbenzo[b]thiophene by using n-butyllithium, is followed by conversion to the corresponding organocopper compound, and subsequent reaction with oxalyl chloride to afford the target compound. The chemical structure of the final compound is well confirmed by NMR, HRMS and X-ray analysis. Meanwhile, the proposed reaction mechanism is fully discussed. Furthermore, the chemiluminescent reaction by using target compound to release light is also investigated. This work provides a convenient synthetic approach for obtaining S,S-diphenyl ethanebis(thioate) compound and broadening its application in chemiluminescence. \u0000 \u0000KEY WORDS: One pot synthesis, S,S-Diphenyl ethanebis(thioate) compound, Crystal structure, Reaction mechanism, Chemiluminescence \u0000Bull. Chem. Soc. Ethiop. 2023, 37(5), 1185-1191. \u0000DOI: https://dx.doi.org/10.4314/bcse.v37i5.11","PeriodicalId":9501,"journal":{"name":"Bulletin of the Chemical Society of Ethiopia","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46109900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

4-Aminoantipyrine-new organotin complexes, synthesis, structure and antioxidant activity 4-氨基安替比林-新型有机锡配合物的合成、结构及抗氧化活性

IF 1.2 4区化学

Bulletin of the Chemical Society of Ethiopia Pub Date : 2023-06-30 DOI: 10.4314/bcse.v37i5.9

Dhekra Jawad Hashim, Eman H. Al-Rikabi, Angham G. Hadi, Sadiq J. Baqir

引用次数: 0

One-pot mediated synthesis of pyrimidine and quinazoline annulated derivatives of nitrogen containing five membered rings through their nitrile derivatives as antibacterial agents 一锅催化合成含氮五元环的嘧啶和喹唑啉环衍生物及其腈衍生物作为抗菌剂

IF 1.2 4区化学

Bulletin of the Chemical Society of Ethiopia Pub Date : 2023-06-30 DOI: 10.4314/bcse.v37i5.12

Umang A. Gosalia, Manish Srivastava, Neetu Yaduvanshi, Shivangi Jaiswal, Sonika Jain, D. Kishore, J. Dwivedi, Swapnil Sharma

{"title":"One-pot mediated synthesis of pyrimidine and quinazoline annulated derivatives of nitrogen containing five membered rings through their nitrile derivatives as antibacterial agents","authors":"Umang A. Gosalia, Manish Srivastava, Neetu Yaduvanshi, Shivangi Jaiswal, Sonika Jain, D. Kishore, J. Dwivedi, Swapnil Sharma","doi":"10.4314/bcse.v37i5.12","DOIUrl":"https://doi.org/10.4314/bcse.v37i5.12","url":null,"abstract":"ABSTRACT. Novel five-membered ring (pyrrole, pyrazole and imidazole)-based pyrimidine and quinazoline derivatives were synthesized by one-pot domino approach. This approach has the advantages of high yield, mild reaction conditions and a simple work-up procedure. The structure of the synthesized compound was elucidated by spectroscopy technique and elemental analysis. The synthesized compound were examined for antimicrobial activity against four bacteria (E. coli, S. pyogenes, S. aureus, and P. aeruginosa) and two fungi (C. albicans and A. clavatus) and most of the synthesized compound exhibited moderate to good activity against reference drug ampicillin, ciprofloxacin, norfloxacin, gentamycin, nystatin and griseofulvin, respectively. \u0000 \u0000KEY WORDS: One-pot, Pyrrole, Pyrazole, Imidazole, Pyrimidine, Quinazoline, Antimicrobial activity \u0000 \u0000Bull. Chem. Soc. Ethiop. 2023, 37(5), 1193-1208. \u0000DOI: https://dx.doi.org/10.4314/bcse.v37i5.12","PeriodicalId":9501,"journal":{"name":"Bulletin of the Chemical Society of Ethiopia","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45195214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spectroscopic, thermal, and anticancer investigations of new cobalt(II) and nickel(II) triazine complexes 新的钴(II)和镍(II)三嗪配合物的光谱、热学和抗癌研究

IF 1.2 4区化学

Bulletin of the Chemical Society of Ethiopia Pub Date : 2023-06-30 DOI: 10.4314/bcse.v37i5.8

Amnah Mohammed Alsuhaibani, Abdel Majid A. Adam, M. S. Refat, Mohamed I. Kobeasy, S. B. Bakare, Eman Salah Bushara

{"title":"Spectroscopic, thermal, and anticancer investigations of new cobalt(II) and nickel(II) triazine complexes","authors":"Amnah Mohammed Alsuhaibani, Abdel Majid A. Adam, M. S. Refat, Mohamed I. Kobeasy, S. B. Bakare, Eman Salah Bushara","doi":"10.4314/bcse.v37i5.8","DOIUrl":"https://doi.org/10.4314/bcse.v37i5.8","url":null,"abstract":"ABSTRACT. The condensation of thiosemicarbazide with oxazolidinone produced 5-benzylidene-3-(4-chloro-phenyl)-6-oxo-5,6-dihydro-1H-[1,2,4]triazine-2-carbothioic acid amide (HL1). Co(II) and Ni(II) ions were reacted with the HL1 ligand. Elemental analysis and molar conductivity, along with mass, 1H-NMR, IR, UV-Vis, and X-ray powder diffraction spectral examinations, were used to reveal the chemical structure of the synthesized complexes. The stoichiometry of the complexes was determined to be 1:2 (metallic: moiety) using analytical, spectroscopic, and thermal data. The thermal properties of the complexes were explored using thermogravimetric (TG-DTG/DTA) methods, as well as the decomposition stages. Several kinetic thermodynamic parameters such as free activation energy (ΔG*), activation enthalpy (ΔH*), activation entropy (ΔS*), pre-exponential factor (A), and the activation energy (E*) were estimated. Inhibitory effects towards colon carcinoma cells (HCT cell line), hepatocellular carcinoma (Hep G2 cell line), and breast carcinoma (MCF-7 cell line) were verified using various concentrations of the samples. A colorimetric method was used to determine the cell viability percent in comparison to doxorubicin drug as a control. \u0000 \u0000KEY WORDS: 1,2,4-Triazines, Thiosemicarbazide, Thermogravimetric analysis, Non-electrolytes, Anticancer \u0000Bull. Chem. Soc. Ethiop. 2023, 37(5), 1151-1162. \u0000DOI: https://dx.doi.org/10.4314/bcse.v37i5.8","PeriodicalId":9501,"journal":{"name":"Bulletin of the Chemical Society of Ethiopia","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47218999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis and characterization of chemical bath deposited copper doped lead sulfide thin films 化学浴沉积铜掺杂硫化铅薄膜的合成与表征

IF 1.2 4区化学

Bulletin of the Chemical Society of Ethiopia Pub Date : 2023-06-30 DOI: 10.4314/bcse.v37i5.15

Dennis Eyetan Elete, Joseph Onyeka Emegha, Nelson Oyindenyifa Nenuwe, Oghogho Weyinmi Omagbemi

{"title":"Synthesis and characterization of chemical bath deposited copper doped lead sulfide thin films","authors":"Dennis Eyetan Elete, Joseph Onyeka Emegha, Nelson Oyindenyifa Nenuwe, Oghogho Weyinmi Omagbemi","doi":"10.4314/bcse.v37i5.15","DOIUrl":"https://doi.org/10.4314/bcse.v37i5.15","url":null,"abstract":"ABSTRACT. The effects of copper concentration on the properties of copper lead sulfide thin films have been reported. Chemical bath deposition (CBD) method was used to deposit the ternary material on soda-lime substrates. Here, the films were grown using copper(II) chloride, lead nitrate, and thiourea as sources of copper (Cu), lead (Pb) and sulfur (S), respectively. The grown films were examined using X-ray diffractometer (XRD), scanning electron microscopy (SEM), energy dispersive X-ray (EDX) spectroscopy, UV-spectrophotometer and four-point (4P) probes. XRD measurements revealed a polycrystalline material with strong adherent to the substrates. SEM readings indicated various grain-like crystalline morphologies with different sizes that change with copper concentrations. The EDX studies revealed that the deposited material consist of copper, lead and sulfur in various compositions. The transmittance was high in the near infrared regions of the electromagnetic radiation and, also decreases with copper concentrations. The band gap (Eg) varies from 2.05 to 2.50 eV with increase in copper concentrations. The study shows that CBD is an excellent method in depositing good quality films for device applications. \u0000 \u0000KEY WORDS: Thin films, Substrates, Copper lead sulfide, Deposition, Optical properties \u0000Bull. Chem. Soc. Ethiop. 2023, 37(5), 1237-1251. \u0000DOI: https://dx.doi.org/10.4314/bcse.v37i5.15","PeriodicalId":9501,"journal":{"name":"Bulletin of the Chemical Society of Ethiopia","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41513734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Molecular geometry and biological activity of 2-(4-substituted-phenylimino)thiazolidin- 4-one compounds 2-(4-取代苯基氨基)噻唑烷- 4- 1化合物的分子几何结构和生物活性

IF 1.2 4区化学

Bulletin of the Chemical Society of Ethiopia Pub Date : 2023-06-30 DOI: 10.4314/bcse.v37i5.18

A. El-Rayyes, Roaa T. Mogharbel, Mohamed H. Abdel-Rhman, Mohamed A. Ismail, E. Abdel‐Latif

{"title":"Molecular geometry and biological activity of 2-(4-substituted-phenylimino)thiazolidin- 4-one compounds","authors":"A. El-Rayyes, Roaa T. Mogharbel, Mohamed H. Abdel-Rhman, Mohamed A. Ismail, E. Abdel‐Latif","doi":"10.4314/bcse.v37i5.18","DOIUrl":"https://doi.org/10.4314/bcse.v37i5.18","url":null,"abstract":"ABSTRACT. A series of 2-(4-substituted-phenylimino)thiazolidin-4-one compounds was synthesized via heterocyclizing the corresponding N-aryl-2-chloroacetamides with ammonium thiocyanate. Their chemical structures were elucidated based on an extensive analysis of their spectroscopic data, including infrared, 1H NMR, 13C NMR, and mass analyses. The possible tautomeric forms of synthesized thiazolidine-4-ones were studied. The tautomerization equilibrium parameters, ΔH, ΔG, and Keq were calculated using the DFT/B3LYP methodology, where it has been indicated that the tautomeric form, phenylimino, is more favourable than the phenylamino form. The antibacterial and antioxidant properties of the synthesized thiazolidin-4-ones were investigated. 2-(Chlorophenyl-imino)thiazolidin-4-one displayed potent antibacterial activity against E. coli (88.46%) and S. aureus (91.66%), and highest percent of inhibition (81.8%, ABTS assay). \u0000 \u0000KEY WORDS: N-aryl-2-chloroacetamides, Ammonium thiocyanate, 2-(Arylimino)thiazolidin-4-ones, Mulliken’s charges, Dipole moment, ABTS assay \u0000Bull. Chem. Soc. Ethiop. 2023, 37(5), 1275-1286. \u0000DOI: https://dx.doi.org/10.4314/bcse.v37i5.18 ","PeriodicalId":9501,"journal":{"name":"Bulletin of the Chemical Society of Ethiopia","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43534883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Smartphones app as portable colorimetric sensor for low-cost quantification of safranin dye in aqueous solutions 智能手机应用程序作为便携式比色传感器，用于低成本定量水溶液中的藏红染料

IF 1.2 4区化学

Bulletin of the Chemical Society of Ethiopia Pub Date : 2023-06-30 DOI: 10.4314/bcse.v37i5.1

Hawraz Sami Khalid, Nabil Adil Fakhre

{"title":"Smartphones app as portable colorimetric sensor for low-cost quantification of safranin dye in aqueous solutions","authors":"Hawraz Sami Khalid, Nabil Adil Fakhre","doi":"10.4314/bcse.v37i5.1","DOIUrl":"https://doi.org/10.4314/bcse.v37i5.1","url":null,"abstract":"ABSTRACT. An android smartphone-based digital image colorimeter was proposed as a novel, fast, cheap, and portable colorimetric sensor for quantification of safranin in aqueous solutions via built-in-house light-boxes photography. Smartphone application known as RGB color detector app that uses an image-matching algorithm via using of take photo (TP) and live camera (LC) to analyze colorful solutions. The color values including red (R), green (G), and blue (B) parameters can be measured with the aid of the app and used for quantifying colorful solutions. The influence of various experimental factors has been optimized. Under optimal conditions, analytical curves were 1.0-10.0 and 2.0-30.0 µg/mL of safranin using G and B parameters, respectively. The obtained signal via the G channel also presented greater sensitivity and linearity, therefore preferred to be the best working channel. The obtained linear range, correlation coefficient, limit of detection, and limit of quantification were 1.00-10.00 µg/mL, 0.9889, 0.15 µg/mL, and 0.51 µg/mL via the GTP-25 method, and 1.00-10.00 µg/mL, 0.9961, 0.13 µg/mL, and 0.44 µg/mL via GLC-25 method, respectively. The proposed method was successfully applied for evaluation of the dye removal. Results were in good agreement with those recorded by UV-Visible spectrophotometer/reference method. \u0000 \u0000KEY WORDS: Smartphone, App, Portable, Colorimetric, Sensor, Safranin \u0000 \u0000Bull. Chem. Soc. Ethiop. 2023, 37(5), 1065-1080. \u0000DOI: https://dx.doi.org/10.4314/bcse.v37i5.1 ","PeriodicalId":9501,"journal":{"name":"Bulletin of the Chemical Society of Ethiopia","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46585285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrochemical micromachining and parameter optimization on AZ31 alloy—ANN and TOPSIS techniques AZ31合金电化学微加工及参数优化-神经网络和TOPSIS技术

IF 1.2 4区化学

Bulletin of the Chemical Society of Ethiopia Pub Date : 2023-06-30 DOI: 10.4314/bcse.v37i5.17

N. Sivashankar, R. Thanigaivelan, K. G. Saravanan

{"title":"Electrochemical micromachining and parameter optimization on AZ31 alloy—ANN and TOPSIS techniques","authors":"N. Sivashankar, R. Thanigaivelan, K. G. Saravanan","doi":"10.4314/bcse.v37i5.17","DOIUrl":"https://doi.org/10.4314/bcse.v37i5.17","url":null,"abstract":"ABSTRACT. Electrochemical micromachining (ECM) is a nontraditional method used for machining operations in hard and light materials with fixed or varying parameters. In this study, magnesium AZ31 alloy was micro machined using two types of electrolyte supply systems, namely electrolyte flooding and minimum quantity electrolyte (MQE). Experimental investigations were performed using TOPSIS and artificial neural network (ANN) techniques with types of electrolyte supply system, electrolyte concentration (EC), duty cycle (%), and machining voltage (V) as the input parameters, and material removal rate (MRR) and over cut (OC) as the outputs. Single and multi-objective parameter optimization was performed using Taguchi, TOPSIS, and ANN techniques. The machined microholes were analyzed using scanning electron microscopy. According to the TOPSIS results, under optimal conditions, a high MRR value and minimum OC of 1.282 μm/s and 66 μm, respectively, were obtained. The results of TOPSIS were verified using the developed ANN architecture. \u0000 \u0000KEY WORDS: Magnesium, AZ31 alloy, Electrochemical micromachining, Optimization, TOPSIS, ANN \u0000Bull. Chem. Soc. Ethiop. 2023, 37(5), 1263-1273. \u0000DOI: https://dx.doi.org/10.4314/bcse.v37i5.17 ","PeriodicalId":9501,"journal":{"name":"Bulletin of the Chemical Society of Ethiopia","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43406723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1