Journal of Taibah University for Science最新文献_第10页

Facile synthesis of novel CoWO ₄ /FeWO ₄ hetrocomposite with efficient visible light photocatalytic degradation and hydrogen evolution aspects 具有高效可见光光催化降解和析氢性能的新型coo4 / fewo4异质复合材料的快速合成

3区综合性期刊

Journal of Taibah University for Science Pub Date : 2023-10-13 DOI: 10.1080/16583655.2023.2265631

Muhammad Munir Sajid, Thamer Alomayri, Haifa Zhai

{"title":"Facile synthesis of novel CoWO <sub>4</sub> /FeWO <sub>4</sub> hetrocomposite with efficient visible light photocatalytic degradation and hydrogen evolution aspects","authors":"Muhammad Munir Sajid, Thamer Alomayri, Haifa Zhai","doi":"10.1080/16583655.2023.2265631","DOIUrl":"https://doi.org/10.1080/16583655.2023.2265631","url":null,"abstract":"Tungstate-based nanomaterials exhibit efficient photocatalytic performance and offer several advantages owing to their electrical and superior optical features, charge transport potentials, and superb corrosion resistance. The objective of the present study is to fabricate cobalt tungstate (CoWO4), Ferric tungstate (FeWO4) and CoWO4/FeWO4 heterojunction composite photocatalysts using a hydrothermal route with various molar concentrations (2:1, 1:1, 1:2, 1:5). The model pollutant Methyl Orange (MO) and Congo Red (CR) azo dyes were degraded 98.26% and 99.61% in 150 min by the as-synthesized CoWO4/FeWO4 at a molar concentration ratio of 1:2. A feasible photodegradation mechanism is purposed and the optimum values for different parameters are also evaluated by considering two different dyes as model organic pollutants. Hydrogen production efficiency reaches up to 36 μmolg−1 h−1 under visible light over 1:2 CoWO4/FeWO4. This work may open new possibilities for the use of CoWO4/FeWO4 composite for potential applications such as the hydrothermal synthesis of composites and their photocatalytic wastewater remedy and as hydrogen evolution applications.","PeriodicalId":17100,"journal":{"name":"Journal of Taibah University for Science","volume":"2012 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135854680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanistic QSAR analysis to predict the binding affinity of diverse heterocycles as selective cannabinoid 2 receptor inhibitor 机制QSAR分析预测不同杂环作为选择性大麻素2受体抑制剂的结合亲和力

3区综合性期刊

Journal of Taibah University for Science Pub Date : 2023-10-09 DOI: 10.1080/16583655.2023.2265104

Rahul D. Jawarkar, Magdi E. A. Zaki, Sami A. Al-Hussain, Abdullah Yahya Abdullah Alzahrani, Long Chiau Ming, Abdul Samad, Summya Rashid, Suraj Mali, Gehan M. Elossaily

{"title":"Mechanistic QSAR analysis to predict the binding affinity of diverse heterocycles as selective cannabinoid 2 receptor inhibitor","authors":"Rahul D. Jawarkar, Magdi E. A. Zaki, Sami A. Al-Hussain, Abdullah Yahya Abdullah Alzahrani, Long Chiau Ming, Abdul Samad, Summya Rashid, Suraj Mali, Gehan M. Elossaily","doi":"10.1080/16583655.2023.2265104","DOIUrl":"https://doi.org/10.1080/16583655.2023.2265104","url":null,"abstract":"CB2R are fascinating targets for neuropathic pain and mood disorders because of their improved biological characteristics. Experimental data on 1296 cannabinoid-2 receptor inhibitors with different structural properties were used to develop a QSAR model following OECD guidelines. This study selected the best-predicted model (80:20 splitting ratio) with fitting parameters, such as R2:0.78; F:623.6, Internal validation parameters, such as Q2Loo:0.78; CCCcv: 0.87 and external validation parameters, such as R2ext:0.77; Q2F1:0.7730; Q2F2:0.7730; Q2F3:0.76; CCCext:0.87. Following this, another QSAR model was developed by using a 50:50 split ratio for thetraining and the prediction sets, which were then swapped to evaluate the robustness of the built QSAR model by the 50:50 ratio, which also gives a deeper understanding of the chemical space. In addition, we have confirmed the QSAR result with pharmacophore modelling, and supported by molecular docking, MD simulation, MMGBSA and ADME studies. Thus, this work may enable cannabinoid 2 receptor inhibsitor development.","PeriodicalId":17100,"journal":{"name":"Journal of Taibah University for Science","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135146311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Natural convection of nanofluid flow in a porous medium in a right-angle trapezoidal enclosure: a Tiwari and Das’ nanofluid model 直角梯形外壳中多孔介质中纳米流体流动的自然对流:Tiwari和Das的纳米流体模型

3区综合性期刊

Journal of Taibah University for Science Pub Date : 2023-10-04 DOI: 10.1080/16583655.2023.2263224

Kothuru Venkatadri, Syed Fazuruddin, Osman Anwar Bég, Obbu Ramesh

引用次数: 0

Computational analyses of RPIA gene mutation causing Ribose-5-phosphate isomerase deficiency: a rarest known metabolic disorder in humans RPIA基因突变导致核糖-5-磷酸异构酶缺乏症的计算分析:一种已知最罕见的人类代谢紊乱

3区综合性期刊

Journal of Taibah University for Science Pub Date : 2023-09-29 DOI: 10.1080/16583655.2023.2262753

Muhammad Muzammal, Sana Fatima, Aisha Gul, Junaid Qayum, Arshad Farid, Safeer Ahmad, Wasim Shah, Muzammil Ahmad Khan

引用次数: 0

A numerical approach to solve hyperbolic telegraph equations via Pell–Lucas polynomials 利用Pell-Lucas多项式求解双曲型电报方程的数值方法

3区综合性期刊

Journal of Taibah University for Science Pub Date : 2023-09-20 DOI: 10.1080/16583655.2023.2255404

Şuayip Yüzbaşı, Gamze Yıldırım

引用次数: 0

Thermal analysis of magnetic Iron-Oxide nanoparticle with combination of Water and Ethylene Glycol passes through a partially heated permeable square enclosure 热分析磁性氧化铁纳米颗粒与水和乙二醇的组合通过部分加热的可渗透方形外壳

3区综合性期刊

Journal of Taibah University for Science Pub Date : 2023-09-19 DOI: 10.1080/16583655.2023.2257366

A. Sumithra, B. Rushi Kumar, R. Sivaraj, Hakan F. Öztop

引用次数: 0

Promising reddish-orange light as Eu ³⁺ incorporated in zinc-borosilicate glass derived from the waste glass bottle 利用废弃玻璃瓶制成的锌硼硅酸玻璃，将Eu 3+掺入其中，有望发出红橙色的光

3区综合性期刊

Journal of Taibah University for Science Pub Date : 2023-09-19 DOI: 10.1080/16583655.2023.2260080

Wei Mun Cheong, Mohd Hafiz Mohd Zaid, Khamirul Amin Matori, Yap Wing Fen, Tan Sin Tee, Zhi Wei Loh, Mohd Zul Hilmi Mayzan

引用次数: 0

Ecofriendly analytical quality by design-based method for determining Metronidazole, Lidocaine and Miconazole using RP-HPLC in semisolid dosage form 半固体剂型甲硝唑、利多卡因、咪康唑的反相高效液相色谱测定方法设计分析质量

3区综合性期刊

Journal of Taibah University for Science Pub Date : 2023-09-13 DOI: 10.1080/16583655.2023.2252593

Viswanathan Sukumar, Hemanth Kumar Chanduluru, Saravanan Chinnusamy

引用次数: 1

Phytochemical studies on Arecaceae growing in Al-Madinah Al-Munawarah, Saudi Arabia 沙特阿拉伯Al-Madinah Al-Munawarah地区槟榔科植物化学研究

3区综合性期刊

Journal of Taibah University for Science Pub Date : 2023-09-11 DOI: 10.1080/16583655.2023.2254908

Meaad F. Alaida, Amal Y. Aldhebiani

{"title":"Phytochemical studies on Arecaceae growing in Al-Madinah Al-Munawarah, Saudi Arabia","authors":"Meaad F. Alaida, Amal Y. Aldhebiani","doi":"10.1080/16583655.2023.2254908","DOIUrl":"https://doi.org/10.1080/16583655.2023.2254908","url":null,"abstract":"Arecaceae belongs to monocotyledons with around 217 genera. In Saudi Arabia, two genera of Arecaceae are recorded, namely, Hyphaena and Phoenix. Al-Madinah Al-Munawarah is an important region in the western part of Saudi Arabia. This study aimed to investigate the significance of phytochemical traits in Arecaceae plants growing in the region of Al-Madinah Al-Munawarah. Plant specimens were collected in September 2021 from the Al-Madinah Al-Munawarah region. Leaves and fruit samples were screened using standard techniques for the presence of phytochemical groups. For the estimation of antioxidants, extracts were obtained from leaves and the concentration of phenolics and flavonoids was determined by LC-DAD at 335 nm and characterized by LTQ-XL linear Ion Trap LC-MS. In statistical analyses, all data obtained from phytochemical investigations were transferred to numerical characters and used in the multivariate statistical package (MVSP). In phytochemical screening, the phytochemical groups of leaves were useful to differentiate between cultivars of date palms. The presence or absence of tannin and saponin in fruits was useful to distinguish between Ph. dactylifera and H. thebaica. The leaves of Ph. dactylifera cultivars and H. thebaica contained flavonoid compounds with different concentrations. The leaves of Phoenix dactylifera cultivars and Hyphaena thebaica can be a valuable source of natural antioxidants and protect against several diseases because of the abundance of flavonoids. The high concentration of phenolics and flavonoids among date palm cultivars was in Altaibat (5.88 mg/g) while the lowest concentration was found in Safawi (1.54 mg/g). The concentration of phenolics and flavonoids in H. thebaica was 5.02 mg/g.","PeriodicalId":17100,"journal":{"name":"Journal of Taibah University for Science","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135937790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Selective and sensitive GC-MS analysis of carcinogenic N-nitrosodimethylamine in pharmaceuticals using a magnetic coconut carbon composite as a solid-phase extraction sorbent 磁椰炭复合材料固相萃取-质谱联用分析药品中致癌物n -亚硝基二甲胺的选择性和敏感性

IF 3.3 3区综合性期刊

Journal of Taibah University for Science Pub Date : 2023-09-06 DOI: 10.1080/16583655.2023.2254352

Hazim M Ali, I. Alsohaimi, Mohammad Rizwan Khan, Ibrahim A. Naguib, Rosa Busquets, P. Alam, Bayan E Ainousah, Mohammed Gamal

{"title":"Selective and sensitive GC-MS analysis of carcinogenic N-nitrosodimethylamine in pharmaceuticals using a magnetic coconut carbon composite as a solid-phase extraction sorbent","authors":"Hazim M Ali, I. Alsohaimi, Mohammad Rizwan Khan, Ibrahim A. Naguib, Rosa Busquets, P. Alam, Bayan E Ainousah, Mohammed Gamal","doi":"10.1080/16583655.2023.2254352","DOIUrl":"https://doi.org/10.1080/16583655.2023.2254352","url":null,"abstract":"The aim of the present research was to develop a magnetic coconut carbon composite (Fe2O3/Fe3O4@CNC) as a solid-phase extraction (SPE) sorbent for the analysis of carcinogenic N-nitrosodimethylamine (NDMA) in pharmaceuticals. Coconut composites modified with Fe2O3 and Fe3O4 were prepared and applied as SPE sorbent for the extraction of NDMA in pharmaceuticals. The sorbent was characterized with X-Ray, infrared spectroscopy and nitrogen porosimetry. The best ions for the Gas Chromatography-Mass Spectrometry with Selected Ion Monitoring (GC-MS/SIM) analysis were m/z 74 and 42 for NDMA, and m/z 80 and 46 for NDMA-d6 internal standard. System has offered great method performance in terms of sensitivity limit of quantitation (LOQ) 16 ng kg−1. The developed sorbent has enhanced the sensitivity and speed of analysis. The developed method was applied to authenticate the presence of NDMA in various pharmaceutical samples. Among the analyzed samples, NDMA impurities were relatively identified at high amounts in nizatidine samples. Highlights NDMA was verified in ranitidine, metformin and nizatidine Fe2O3/Fe3O4@CNC composite was used for NDMA identification without pretreatment SPE sorbent enhance sensitivity, reduce analysis time, sustain accuracy & precision High level of NDMA impurity were found in nizatidine pharmaceuticals. GRAPHICAL ABSTRACT","PeriodicalId":17100,"journal":{"name":"Journal of Taibah University for Science","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2023-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46283547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0