Material Science Research India最新文献_第5页

Green Synthesis of Ceria Nanoparticles Using Azadirachta Indica Plant Extract: Characterization, Gas Sensing and Antibacterial Studies 利用印楝植物提取物绿色合成纳米二氧化铈:表征、气敏及抗菌研究

Material Science Research India Pub Date : 2021-12-30 DOI: 10.13005/msri/180304

S. Ahire, A. Bachhav, T. B. Pawar, A. V. Patil, Swapnil Sampatrao Shendge, P. B. Koli

{"title":"Green Synthesis of Ceria Nanoparticles Using Azadirachta Indica Plant Extract: Characterization, Gas Sensing and Antibacterial Studies","authors":"S. Ahire, A. Bachhav, T. B. Pawar, A. V. Patil, Swapnil Sampatrao Shendge, P. B. Koli","doi":"10.13005/msri/180304","DOIUrl":"https://doi.org/10.13005/msri/180304","url":null,"abstract":"In the present investigation we have fabricated the cerium dioxide (CeO2) nanoparticles by green route. While preparing the cerium dioxide nanoparticles by co-precipitation method, Neem leaf extract mixed into the precursor of cerium. The synthesized nanoparticles of CeO2 were used for the preparation of thick film sensor by using screen printing strategy. The fabricated CeO2 sensor was characterized by XRD, SEM, EDS and TEM techniques. The structural characteristics investigated by x-ray diffraction technique (XRD). XRD confirms the formation of cubic lattice of CeO2 material. The surface, texture, porosity characteristics were investigated from SEM analysis, while chemical composition of the material was analysed by EDS technique. The transmission electron microscopy (TEM) confirms the formation cubic lattice of the cerium dioxide material. The thickness of the films was calculated from mass difference method, the prepared film sensors belong to thick region. The fabricated material CeO2 sensor was applied as gas sensor to sense the gases such as LPG, petrol vapors (PV), toluene vapors (TV) and CO2. The CeO2 sensor showed excellent gas response for LPG and PV, nearly 93.20 % and 78.23 % gas response. The rapid response and recovery of the prepared sensors was observed at the tested gases. CeO2 material also employed for antibacterial study at several pathogenic organism such as pseudomonas, staphylococcus aureus and salmonella typhae. From antibacterial study it was observed that the material is capable of inhibiting the growth of these pathogenic microbes.","PeriodicalId":18247,"journal":{"name":"Material Science Research India","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85418105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Failure Analysis of Wire Ropes Used in Multi-Wire Machines for Cutting Blocks of Stone 多丝切割石料机用钢丝绳失效分析

Material Science Research India Pub Date : 2021-12-30 DOI: 10.13005/msri/180303

S. Baragetti

引用次数: 1

Anti-Inflammatory and Antioxidant Properties of Coffea Arabica/Reduced Graphene Oxide Nanocomposite prepared by green synthesis 绿色合成制备阿拉比卡咖啡/还原氧化石墨烯纳米复合材料的抗炎和抗氧化性能

Material Science Research India Pub Date : 2021-12-30 DOI: 10.13005/msri/180306

D. Perera, R.C.L. De Silva, L. Nayanajith, H. Colombage, T. S. Suresh, W. Abeysekera, I. Kottegoda

{"title":"Anti-Inflammatory and Antioxidant Properties of Coffea Arabica/Reduced Graphene Oxide Nanocomposite prepared by green synthesis","authors":"D. Perera, R.C.L. De Silva, L. Nayanajith, H. Colombage, T. S. Suresh, W. Abeysekera, I. Kottegoda","doi":"10.13005/msri/180306","DOIUrl":"https://doi.org/10.13005/msri/180306","url":null,"abstract":"The present study focuses on an efficient eco-friendly method for reducing graphene oxide (rGO) using Coffea arabica leaf extract for bio-medical applications for the first time to the best of our knowledge. The reduction of graphene oxide (GO) using Coffea arabica leaves was verified through Raman, X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM). The XRD peaks corresponding to GO at 2 =10º have dissapeared on reduction of GO to rGO and the formation of rGO was verified through a new broad peak at 2 =26º. FTIR revealed functional group changes in reducing GO to rGO. The SEM images of rGO showed a ribbed form instead of the rigid appearance of the GO flakes. The analysis revealed that the current green method is a feasible method for reducing GO to rGO and formation of the Coffea arabica/rGO nanocomposite. The composite prepared from young coffee leave exhibited higher antioxidant capacity than matured leave against scavenging 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) and 2, 2-diphenyl-1-picrylhydrazyl (DPPH) free radicals. Fascinatingly, the Coffea arabica/rGO nanocomposite showed an anti-inflammatory activity as well suggesting that the Coffea arabica /rGO nanocomposite is promising candidate for bio-medical applications in near future.","PeriodicalId":18247,"journal":{"name":"Material Science Research India","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80025702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Effect of Kota Stone Slurry Powder in Fresh and Hardened Concrete: A Review Kota石浆粉在新拌混凝土和硬化混凝土中的作用综述

Material Science Research India Pub Date : 2021-12-30 DOI: 10.13005/msri/180301

Arpita Ojha, T. Gupta

引用次数: 0

Design, Fabrication and Development of House Hold Utensil Cleaning Machine 家用餐具清洗机的设计、制造与开发

Material Science Research India Pub Date : 2021-12-30 DOI: 10.13005/msri/180302

Sumit Desai, Dilip Choudhari

{"title":"Design, Fabrication and Development of House Hold Utensil Cleaning Machine","authors":"Sumit Desai, Dilip Choudhari","doi":"10.13005/msri/180302","DOIUrl":"https://doi.org/10.13005/msri/180302","url":null,"abstract":"This work presents design and fabrication of efficient and economical ultrasonic utensil cleaning machine. Electrical energy is converted into Mechanical energy by transducer. Transducer vibrates with ultrasonic frequency supplied to it by the frequency producer. These vibrations produce cavitation bubbles in the solvent/water. The size of the bubbles is in micron range. The mass of the cavitation bubbles depend on the rate of recurrence of the transducer. These bubbles act as scrubber which scrub the surface of utensil thus removing the soils/dirt stick on it. The size of the bubble is so small it does not cause any damage to the surface of utensil. Higher the frequency, more homogeneous will be the cleaning. Rinsing is provided within the system which will make it more compact. To keep the contaminants away from the cleaned surface, sweep frequency is used. Rotation to the basket is given by the motor. This rotation helps to reduce the cycle time and also dry the surface of utensil by centrifugal action. So when the utensil is removed from the basket it is ready for use. By this technology cycle time will be reduced drastically. Without any human efforts it can clean the dirtiest stains from the oily utensils. All types of utensils can be cleaned whether it is ceramics, glass, copper, wood, aluminum, stainless steel, etc. This cleaning process is more hygienic and can clean more efficiently compared to conventional cleaning.","PeriodicalId":18247,"journal":{"name":"Material Science Research India","volume":"50 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77277789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multiphase Phase-Field Approach for Virtual Melting: A Brief Review 虚拟熔炼的多相相场方法:综述

Material Science Research India Pub Date : 2021-08-30 DOI: 10.13005/msri/180201

Anisha Roy

引用次数: 3

Reduced Graphene Oxide-sno2-Polyaniline Ternary Composite for High-Performance Supercapacitors 高性能超级电容器用还原氧化石墨烯-sno2-聚苯胺三元复合材料

Material Science Research India Pub Date : 2021-08-30 DOI: 10.13005/msri/180208

V. Jayaweera, W.L.N.C. Liyanage, R.C.L. De Silva, S. Rosa, I. Kottegoda

引用次数: 6

Zinc Oxide Nanoparticles Promoted Highly Efficient and Benign Synthesis of 3,4-Dihydropyrimidine-2(1H)-one/thione Derivatives 氧化锌纳米颗粒促进了3,4-二氢嘧啶-2(1H)- 1 /硫酮衍生物的高效良性合成

Material Science Research India Pub Date : 2021-08-30 DOI: 10.13005/msri/180210

V. Bagul

引用次数: 0

Synthesis, Molecular Structure, HOMO-LUMO, Chemical, Spectroscopic (UV-Vis and IR), Thermochemical Study of Ethyl 6-amino-5-cyano-2-methyl-4-(4-nitrophenyl)-4H-pyran-3-carboxylate: A DFT Exploration 6-氨基-5-氰基-2-甲基-4-(4-硝基苯基)-4 - h -吡喃-3-羧酸乙酯的合成、分子结构、HOMO-LUMO、化学、光谱(紫外-可见和红外)、热化学研究:DFT探索

Material Science Research India Pub Date : 2021-08-30 DOI: 10.13005/msri/180206

V. A. Adole, Tejendra R. Rajput, Bapusonu Jagdale

{"title":"Synthesis, Molecular Structure, HOMO-LUMO, Chemical, Spectroscopic (UV-Vis and IR), Thermochemical Study of Ethyl 6-amino-5-cyano-2-methyl-4-(4-nitrophenyl)-4H-pyran-3-carboxylate: A DFT Exploration","authors":"V. A. Adole, Tejendra R. Rajput, Bapusonu Jagdale","doi":"10.13005/msri/180206","DOIUrl":"https://doi.org/10.13005/msri/180206","url":null,"abstract":"The ethyl 6-amino-5-cyano-2-methyl-4-(4-nitrophenyl)-4H-pyran-3-carboxylate (ACNPPC) was synthesized using an environmentally friendly method and looked into in terms ofstructural, UV-visible, vibrational, and computational analysis. In the gaseous phase, calculations of the density functional theory (DFT) with B3LYP/6-311G(d,p) level were performed. Using Time-dependent density functional theory (TD-DFT) with the B3LYP/6-311G(d,p) basis set method, the HOMO and LUMO energies are calculated. For assessing electrophilic and nucleophilic reactive sites, the molecular electrostatic surface potential (MESP) and contour plot were plotted over the optimized structure. Using computed and experimental vibrational spectra, vibrational assignments were elucidated. To illustrate the charge density in the title compound, Mulliken atomic charges are disclosed. In addition, using vibrational analysis, some thermochemical functions have also been derived. Theoretical simulations have shown the best relationship with experimental results obtained with the B3LYP/6-311G(d,p) level of theory at the DFT and TD-DFT methods.","PeriodicalId":18247,"journal":{"name":"Material Science Research India","volume":"79 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82582098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Hydrostatic Stress and Fatigue Crack Growth of Notched Ti6Al4V in Aggressive Media 缺口Ti6Al4V在侵蚀介质中的静水应力与疲劳裂纹扩展

Material Science Research India Pub Date : 2021-08-30 DOI: 10.13005/msri/180212

S. Baragetti

引用次数: 0