Journal of ISAS最新文献

Effect of addition of fillers on Cellulose/β-TCP polymer Composites: Thermal, Mechanical and Antimicrobial Properties 添加填料对纤维素/β-TCP聚合物复合材料的热、力学和抗菌性能的影响

Journal of ISAS Pub Date : 2023-10-31 DOI: 10.59143/isas.jisas.2.2.noqe5610

T. S. Kiruthika, B. Deepan Kumar, V. Jaisankar

{"title":"Effect of addition of fillers on Cellulose/β-TCP polymer Composites: Thermal, Mechanical and Antimicrobial Properties","authors":"T. S. Kiruthika, B. Deepan Kumar, V. Jaisankar","doi":"10.59143/isas.jisas.2.2.noqe5610","DOIUrl":"https://doi.org/10.59143/isas.jisas.2.2.noqe5610","url":null,"abstract":"Cellulose-based polymeric composites have received considerable attention as appealing biomimetic alternatives for a variety of biological applications because of their unique mechanical characteristics and appreciable bioactivity. In this investigation, four ternary polymeric composites were prepared, with cellulose serving as a typical common - -TCP) serving as a common bioceramic component. The naturally available hemp was used for the isolation of cellulose. The solution precipitation process was used to cr -TCP. Cellulose/Agar- -TCP, Cellulose/I- -TCP, Cellulose/Polyvinyl alcohol - -TCP were the four polymeric composites prepared. The thermal and mechanical properties of the prepared composites were analysed and were compared. The SEM images of these materials indicated that the presence -TCP in the composites reveals notable morphological changes in the surface that are appropriate for the cell adhesion nature. The antimicrobial properties such as antibacterial, antifungal, anticancer and in vitro wound healing ability of the prepared composites open a new perspective in the applications for biomaterials field.","PeriodicalId":484338,"journal":{"name":"Journal of ISAS","volume":"2022 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135813668","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

Preparation of Inorganic Composites of Chitosan/magnesium Oxide Nanoparticle for Antibacterial Activity 壳聚糖/氧化镁纳米颗粒无机复合材料的制备及其抗菌性能

Journal of ISAS Pub Date : 2023-10-31 DOI: 10.59143/isas.jisas.2.2.kcna4459

K. Deepa, M. Leo Edward, A. Shalini, V. Jaisankar

引用次数: 0

Quantum Chemical Reactivity Investigation on ism Methyl Acetate Through DFT Studies 用DFT研究ism乙酸甲酯的量子化学反应性

Journal of ISAS Pub Date : 2023-10-31 DOI: 10.59143/isas.jisas.2.2.metn2363

P. Gayathri, P. Udhayakala

引用次数: 0

Diffusion of Fe3+ Ions in Agar Gel Medium Containing Zinc Sulfate: Obstruction effect and Activation Energy Fe3+离子在含硫酸锌琼脂凝胶介质中的扩散:阻碍效应和活化能

Journal of ISAS Pub Date : 2023-10-31 DOI: 10.59143/isas.jisas.2.2.iawx1959

M. S. Gupte

{"title":"Diffusion of Fe3+ Ions in Agar Gel Medium Containing Zinc Sulfate: Obstruction effect and Activation Energy","authors":"M. S. Gupte","doi":"10.59143/isas.jisas.2.2.iawx1959","DOIUrl":"https://doi.org/10.59143/isas.jisas.2.2.iawx1959","url":null,"abstract":"The paper presents a study on the diffusion behaviour of ferric ions within an agar gel medium containing zinc sulfate electrolyte. Investigations for various aspects, including the obstruction effect introduced by the agar gel, the validation of Wang's diffusion model, and the suitability of applying transition state theory to the diffusion of Fe3+ ions in an agar gel medium with zinc sulfate were made. This investigation involved optimising the gel concentration, electrolyte concentration, and system temperature. The diffusion coefficients are determined by the zone diffusion technique. The results reveal that the activation energy (E) decreases as the electrolyte concentration increases, aligning with Wang's model. This decrease is attributed to the disruption of the water structure induced by ions and agar molecules. Additionally, for a fixed electrolyte concentration, the activation energy decreases with the cubic root of the weight percent of agar (W1/3), while the diffusion coefficient (Do) decreases with the square of the reciprocal of the weight percent of agar (W-2/3). This behaviour is consistent with the principles of the transition state theory of diffusion.","PeriodicalId":484338,"journal":{"name":"Journal of ISAS","volume":"116 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135863320","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

Synthesis Of Graphene Oxide Modified Polyaniline And Its Electrochemical Application For Detection of Nitric Oxide 氧化石墨烯修饰聚苯胺的合成及其在一氧化氮检测中的电化学应用

Journal of ISAS Pub Date : 2023-10-31 DOI: 10.59143/isas.jisas.2.2.qonr9019

A. Shalini, K. Pandian, K. Deepa, V. Jaisankar

引用次数: 0

Synthesis of Au nanospheres, Au/PVDF nanocomposites and their breath sensing properties 金纳米球、金/聚偏氟乙烯纳米复合材料的合成及其呼吸传感性能

Journal of ISAS Pub Date : 2023-10-31 DOI: 10.59143/isas.jisas.2.2.qdai6853

Amruta Bang, Parag Adhyapak

引用次数: 0

Review of the Booklet : Solvothermal and Hydrothermal Techniques for Nano-synthesis: An Overview by Dr. Manisha Bora 《溶剂热和水热技术用于纳米合成:综述》，作者:Manisha Bora博士

Journal of ISAS Pub Date : 2023-10-31 DOI: 10.59143/isas.jisas.2.2.izrv7844

Dinesh Amalnerkar

{"title":"Review of the Booklet : Solvothermal and Hydrothermal Techniques for Nano-synthesis: An Overview by Dr. Manisha Bora","authors":"Dinesh Amalnerkar","doi":"10.59143/isas.jisas.2.2.izrv7844","DOIUrl":"https://doi.org/10.59143/isas.jisas.2.2.izrv7844","url":null,"abstract":"Dr.Manisha Bora has come with handy booklet on hermal and Hydrothermal Techniques for Nano- in the same timeframe of October 2023 when Nobel prize in Chemistry has been awarded to three American Professors Bawendi, Brus and Yekimov for their pioneering research on Q Dots, the tiniest components of nanotechnology. What a great coincidence! This booklet is thus a timely and welcome addition in the sphere of nanotechnology. It comprises in all 12 chapters followed by apt references at the end. Illustrative figures and synthesis equations are provided at appropriate places. Table-1 furnishes summary of hydrothermal and solvothermal reaction conditions for the synthesis of typical nanomaterials and their focussed end-applications. It is well established that hydrothermal/solvothermal synthesis conditions lead to formation of nanostructures with complex morphological features/ hierarchical nano- architecture which, in turn, can enhance the utility of the envisaged end-application. Perhaps, inclusion of representative FESEM and FETEM images in this booklet could have been very useful for clarity on nano-scale formation and also to prove the merits of hydrothermal/solvothermal","PeriodicalId":484338,"journal":{"name":"Journal of ISAS","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135871889","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

X-Ray Diffraction in Mineralogical Research 矿物学研究中的x射线衍射

Journal of ISAS Pub Date : 2023-04-30 DOI: 10.59143/isas.jisas.1.4.wcjb9374

Yamuna Singh

引用次数: 0