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A Practical Approach for Solubility Enhancement of Leflunomide 一种提高来氟米特溶解度的实用方法
Oriental Journal Of Chemistry Pub Date : 2023-10-30 DOI: 10.13005/ojc/390537
Yash Bhandari, Sunayana Rathore, Vaishali Raghuwanshi, Shehnaz Sheikh, Yashmita Sharma, Ishan Dubey
{"title":"A Practical Approach for Solubility Enhancement of Leflunomide","authors":"Yash Bhandari, Sunayana Rathore, Vaishali Raghuwanshi, Shehnaz Sheikh, Yashmita Sharma, Ishan Dubey","doi":"10.13005/ojc/390537","DOIUrl":"https://doi.org/10.13005/ojc/390537","url":null,"abstract":"Leflunomide is an anti-rheumatic medication. As it has low water solubility, it shows low absorption in gastrointestinal tract. The reported solubility of Leflunomide is approx 25.27 mcg/ml. Leflunomide comes under BCS Class II in which it has low solubility and high permeability. In this study, gel entrapment technique is used to enhance the solubility of leflunomide. In this technique Hydroxy Propyl Methyl Cellulose and Ethyl Cellulose are used which are converted to gel with the addition of different organic solvent such as Ethanol, Chloroform, Di chloro Methane etc. The analyses of the samples are done by UV Spectrophotometer at 260nm. Results shows an increment in solubility of Leflunomide drug by gel entrapment technique and are found to be 5.23, 3.80, 3.05 and 2.64 times using HPMC+Chloroform, HPMC+Ethanol+ Dichloro methane, HPMC+Ethanol+Water, HPMC+Ethyl Cellulose+ Dichloro methane+ Water respectively.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136105555","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
The Analysis of Pyrostegia Venusta Flower Mediated Dye as Sensitizer for TiO2 Based Dye Sensitized Solar Cells 火豆花介导染料作为TiO2基染料敏化太阳能电池的敏化剂分析
Oriental Journal Of Chemistry Pub Date : 2023-10-30 DOI: 10.13005/ojc/390529
Tanvi Pandya, Varsha Rajoriya, Jay Lalita, K. R. Genwa
{"title":"The Analysis of Pyrostegia Venusta Flower Mediated Dye as Sensitizer for TiO2 Based Dye Sensitized Solar Cells","authors":"Tanvi Pandya, Varsha Rajoriya, Jay Lalita, K. R. Genwa","doi":"10.13005/ojc/390529","DOIUrl":"https://doi.org/10.13005/ojc/390529","url":null,"abstract":"Since no vacuum systems or expensive equipment are needed in their fabrication, dye sensitized solar cells (DSSCs) are anticipated to be one of the effective solar cells of third generation delivering green energy at low production costs. The structure and operating principles of the dye-sensitized solar cell (DSSC) are reviewed in this work. Optical characterization and extraction of detail is provided on pyrostegia venusta. The preparation steps, dye-based optical and electrical characterization of the DSSC, are all covered. The sensitized solar cell having maximum conversion efficiency(1.99%)is capable of producing an open circuit voltage Voc (1.94V) and a short circuit current isc (1.804mA) when exposed to solar irradiation.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136068016","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
Study on Solution Behavior of Green Gemini-Conventional Mixed Systems and their Solubilization Capability Towards Phenanthrene 绿色双-常规混合体系的溶解行为及其对菲的增溶能力研究
Oriental Journal Of Chemistry Pub Date : 2023-10-30 DOI: 10.13005/ojc/390514
Moughes Ahmad, Najam Sardar
{"title":"Study on Solution Behavior of Green Gemini-Conventional Mixed Systems and their Solubilization Capability Towards Phenanthrene","authors":"Moughes Ahmad, Najam Sardar","doi":"10.13005/ojc/390514","DOIUrl":"https://doi.org/10.13005/ojc/390514","url":null,"abstract":"In the present study green ester bonded cationic gemini surfactants, Ethane-1,2-diyl bis (N,N-dimethyl-N-hexadecylammonium acetoxy)dichloride (16E216) and 2,2’-{(oxybis(ethane1,2-diyl)bis(oxy)bis(N-alkyl-N,N-dimethyl-2-hexadecyl oxoethanaminium)dichloride (16E316) were synthesized and evaluated for their various physicochemical and other interaction parameters with their mixtures with conventional surfactants namely (cetyltrimethylammonium bromide (CTAB) and cetyltrimethylammonium chloride (CTAC) by tensiometry. Much lower cmc values of the order of 250 times were observed for 16E216 and 16E316 than conventional surfactants. Further, synergistic interaction occurs between the gemini and conventional surfactants as a result of negative interaction parameters. The mixed systems were also investigated for the solubilization of polyaromatic hydrocarbon (PAH), Phenanthrene. Among the pure surfactants, 16E216 has the highest and CTAB has the lowest efficiency for phenanthrene. Solubility enhancement was observed for almost all gemini-conventional mixed systems and shows better solubilization properties than pure surfactant systems due to synergism. The morphologies of pure and mixed systems were examined by TEM imaging. Findings of the present study could be exploited to use such mixed surfactant systems as the successful remediation technology for PAH contaminated soils.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"26 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136068944","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
Rheology of Almond (Prunus amygdalus) Oil used as Biodegradable Lubricant 杏仁油作为可生物降解润滑剂的流变学研究
Oriental Journal Of Chemistry Pub Date : 2023-10-30 DOI: 10.13005/ojc/390518
Ioana Stanciu*
{"title":"Rheology of Almond (Prunus amygdalus) Oil used as Biodegradable Lubricant","authors":"Ioana Stanciu*","doi":"10.13005/ojc/390518","DOIUrl":"https://doi.org/10.13005/ojc/390518","url":null,"abstract":"Almond (Prunus amygdalus) oil is recommended for those for whom other treatments to remedy hair loss problems have not worked. Almond oil was studied at increasing temperatures and shear rates and we obtained the rheological parameters corresponding to the oil through regression. This paper reflects a study on the rheology of almond oil used as biodegradable lubricant using the Brookfield RVDV II I Ultra Rheometer system.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136069073","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
DFT study of Lithium, Sodium and Potassium salts of Amino Acids; Global Reactivity Descriptors, Optimized parameters and Hydration Free Energy 氨基酸锂盐、钠盐和钾盐的DFT研究全局反应性描述符，优化参数和水化自由能
Oriental Journal Of Chemistry Pub Date : 2023-10-30 DOI: 10.13005/ojc/390528
Mahendra Bapurao Dhande, G Krishna Chaitanya, Dipak Tukaram Tayade, Pavan Vijay Raut
{"title":"DFT study of Lithium, Sodium and Potassium salts of Amino Acids; Global Reactivity Descriptors, Optimized parameters and Hydration Free Energy","authors":"Mahendra Bapurao Dhande, G Krishna Chaitanya, Dipak Tukaram Tayade, Pavan Vijay Raut","doi":"10.13005/ojc/390528","DOIUrl":"https://doi.org/10.13005/ojc/390528","url":null,"abstract":"A promising solvent for removing CO2 from flue gases after combustion is aqueous solutions of amino acid salts of alkali metals. Their computational work would be extremely significant in this area. Amino acid salts of alkali metals are being explored in aqueous solutions for post-combustion CO2 capture from flue gases. In this regard, their computational study would be of the utmost importance. The hydration free energies, total dipole moment, HOMO/LUMO band gap energy, C=O vibration of the –COOH group, bond lengths and bond angles for lithium, sodium and potassium cysteinate and prolinate were computed in the current work using the Gaussian 09 program. Study shows that the hydration free energy for potassium saltsisless than that of corresponding lithium and sodium salts. From result it could be stated that the change of alkali metal(Na/ K)in amino acid saltsare changing the physical structural and vibrational characteristics of amino acid salts. This study would be helpful for their evaluation as a CO2 capturing agent.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136069628","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
Elegant Explorations of Ionic Liquids in the Expeditious Synthesis of Fe3O4 Nanoparticles 离子液体在Fe3O4纳米颗粒快速合成中的优雅探索
Oriental Journal Of Chemistry Pub Date : 2023-10-30 DOI: 10.13005/ojc/390533
Sangita R. Bhirud, Chandrakant H. Sarode, Gaurav R. Gupta, Rakesh P. Chaudhari, Ganesh R. Chaudhari
{"title":"Elegant Explorations of Ionic Liquids in the Expeditious Synthesis of Fe3O4 Nanoparticles","authors":"Sangita R. Bhirud, Chandrakant H. Sarode, Gaurav R. Gupta, Rakesh P. Chaudhari, Ganesh R. Chaudhari","doi":"10.13005/ojc/390533","DOIUrl":"https://doi.org/10.13005/ojc/390533","url":null,"abstract":"Ionic liquids (ILs) are becoming an innovative and attractive synthesis medium for inorganic nano-materials, allowingmore efficient, environmentally benign and sustainable preparation of high quality nano-materials. The present study explores the potentials of imidazolium ionic liquids as a stabilized reaction medium in the synthesis of metal oxide nanoparticles. Furthermore, a detail explanation regarding the methods of modifying surfaces with ILs of varying chain length for the formation of Fe3O4 nanoparticles have been addressed.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"7 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136105373","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
Eco-friendly Synthesis of Strontium Oxide Nanoparticles using Solanum nigrum Leaf Extract: Characterization and Antibacterial Potential 利用茄叶提取物环保合成氧化锶纳米颗粒:表征及其抗菌潜力
Oriental Journal Of Chemistry Pub Date : 2023-10-30 DOI: 10.13005/ojc/390531
A. Kasthuri, P. Pandian
{"title":"Eco-friendly Synthesis of Strontium Oxide Nanoparticles using Solanum nigrum Leaf Extract: Characterization and Antibacterial Potential","authors":"A. Kasthuri, P. Pandian","doi":"10.13005/ojc/390531","DOIUrl":"https://doi.org/10.13005/ojc/390531","url":null,"abstract":"In this study, strontium oxide nanoparticles (SrO NPs) were successfully synthesized using Solanum nigrum leaf extract. The extract acted as a stabilizing agent during the synthesis process. Characterization techniques such as FTIR spectroscopy confirmed the existence of functional groups of the nanoparticles. Photon Correlation Spectroscopy analysis revealed an average particle size of 94.8 nm with a polydisperse distribution. SEM images showed the morphology of the nanoparticles, ranging from individual particles to agglomerates. XRD analysis indicated a cubic crystal structure for the SrO NPs. Importantly, the synthesized SrO NPs exhibited significant antibacterial activity against Mycobacterium TB, Candida albicans, and E. coli, highlighting their potential as antimicrobial agents. This eco-friendly approach utilizing Solanum nigrum extract opens up possibilities for the green synthesis of SrO NPs with promising biomedical applications.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"32 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136105374","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 Schiff bases Derivatives of 1,3-oxazepine and Evaluation of Antioxidant Action In vitro 1,3-恶氮平席夫碱衍生物的合成及体外抗氧化作用评价
Oriental Journal Of Chemistry Pub Date : 2023-10-30 DOI: 10.13005/ojc/390534
Sarvesh Kumar Singh, Neelima Mishra, Govind Nayak, Parulben Mehta
{"title":"Synthesis of Schiff bases Derivatives of 1,3-oxazepine and Evaluation of Antioxidant Action In vitro","authors":"Sarvesh Kumar Singh, Neelima Mishra, Govind Nayak, Parulben Mehta","doi":"10.13005/ojc/390534","DOIUrl":"https://doi.org/10.13005/ojc/390534","url":null,"abstract":"The objective of this work was to synthesize new 1,3-oxazepine derivatives and evaluate the antioxidant activity of the synthesized compounds. The synthesis of Schiff’s base of oxazepine was achieved in four steps involving condensation of aniline and benzaldehyde followed by (2+5) cycloaddition occurs between the imine and anhydride leading to the formation of 1,3-oxazepine-4,7-dione. Later the oxazepine dione undergoes condensation with thiosemicarbazide and finally nucleophilic addition of active carbonyl group to form Schiff’s bases. The synthesized compounds 8a-e were obtained in yield ranging from 69-77%. The antioxidant activity of the compounds was evaluated at various concentrations (100-500µg/mL) using DPPH radical scavenging assay and hydroxy radical scavenging assay. The compounds had IC50 in the range of 34.297 µg to 131.04 µg in the DPPH scavenging assay whereas the IC50 ranged of 49.943 µg to 153.13 µg in the hydroxy radical scavenging assay.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"14 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136105873","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
Visualizing Structure Models and Patterson Densities in four WS2 Polymorphs: Metastable (1T’, 4M) and Stable (2H, 3R) Phases 四种WS2多晶的可视化结构模型和Patterson密度:亚稳态(1T′，4M)和稳定(2H, 3R)相
Oriental Journal Of Chemistry Pub Date : 2023-10-30 DOI: 10.13005/ojc/390521
Manu Kumar Bhandoria, Ravi Kumar Rana, Hari Shankar, Yashpal Sharma, Jitendra Gangwar
{"title":"Visualizing Structure Models and Patterson Densities in four WS2 Polymorphs: Metastable (1T’, 4M) and Stable (2H, 3R) Phases","authors":"Manu Kumar Bhandoria, Ravi Kumar Rana, Hari Shankar, Yashpal Sharma, Jitendra Gangwar","doi":"10.13005/ojc/390521","DOIUrl":"https://doi.org/10.13005/ojc/390521","url":null,"abstract":"3-dimensional atomic and electronic structures of four crystalline WS2 phases are rendered using VESTA program. In this study, a comprehensive investigation for visualizing structure models and Patterson densities in metastable 1T’- and 4M-WS2 phases and elucidate comparison to stable 2H- and 3R-WS2 phases. Structure models are provided in Stick, Space-filling, Ball-and-stick and Polyhedral representations with size of atoms based on their atomic radii. Analysis on type of W-S coordination (WS6) polyhedra reveals that metastable WS2 phases are composed of distorted octahedra and for stable WS2 phases it is perfect trigonal prisms. Moreover, evidence of different stacking sequences in WS2 polymorphs is also visualized. Patterson densities are exploited from model-electron and -nuclear densities are demonstrated in Wireframe representation by optimizing the interatomic distances. These studies not only evidence the structural characteristics influencing the construction of four WS2 polymorphs, but also provide an ideal platform for both fundamental and application-oriented research.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136067503","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
Beneficiation of Coal with Biochemical Method and Effect of Treated Coal on Boiler Efficiency in Power Generatation 煤的生化选矿及处理后煤对发电锅炉效率的影响
Oriental Journal Of Chemistry Pub Date : 2023-10-30 DOI: 10.13005/ojc/390506
Gangadhara Reddy Ulavapalli, Rambabu Koyilapu, G. V. Subba Reddy, T. Gouri Chran, V. Murali Krishna, Sreedhar Reddy Duvvuri
{"title":"Beneficiation of Coal with Biochemical Method and Effect of Treated Coal on Boiler Efficiency in Power Generatation","authors":"Gangadhara Reddy Ulavapalli, Rambabu Koyilapu, G. V. Subba Reddy, T. Gouri Chran, V. Murali Krishna, Sreedhar Reddy Duvvuri","doi":"10.13005/ojc/390506","DOIUrl":"https://doi.org/10.13005/ojc/390506","url":null,"abstract":"In India it has become a major challenging task in majority of thermal power stations to maintain heat rate as per design norms due to problems associated with coal quality and constraints in operation and maintenance practices. Heat rate refers to the amount of heat required to generate one unit of power which mainly depends upon coal quality. Boiler efficiency and heat rate are mainly influenced by key quality parameters of the coal that is ash, moisture, volatile matter, net calorific value of coal, ratio of fixed carbon to volatile matter and grindability of coal. In this research study an effort is being made to improve coal quality by using bio-extracts derived from leaves of citrus limon in combination with lower concentrations of Ethylene Diamine Tetra Acetic Acid (EDTA) and compare boiler efficiency/heat rate with raw and beneficiated coals. Phyto extract derived from citrus limon is effective in demineralizing Aluminium and Pyrite minerals in coal and EDTA is successful for removal of Calcium and Magnesium mineral components of coal and hence calorific value of coal is increased. Results suggesting that usage beneficiated coals improving the boiler efficiency and reducing the heat rate of the thermal unit there by crores of rupee can be saved.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136070183","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
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