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Extraction of Silica from Different Sources of Agricultural Waste 从不同来源的农业废弃物中提取二氧化硅
Pub Date : 2023-02-24 DOI: 10.52711/0974-4150.2023.00016
I. Kouadri, Bachir BEN SEGHİR, H. Hemmami, S. Zeghoud, N. Allag, A. Rebiai, Ilham Ben Amor, A. Chala, H. Belkhalfa
Disposal and burning of biomass-derived from relevant agricultural waste indiscriminately pollutes the environment and increases greenhouse gas emissions. Researchers have been exploring the “waste to wealth creation” policy due to the renewable nature and availability of agricultural wastes. In this study, agricultural wastes (groundnut shell (K), walnut shell (G), and wood carpentry waste (N)) were investigated for potential use in silica production. Initially, to obtain the ash, the samples were burned. The chemical method was then used to extract fine powder silica in the nanoscopic range using a simple bottom-up approach. To confirm the results, the samples were examined by XRD, SEM with EDX, and FT-IR, which were used to analyze the extracted silica nanoparticles. The isolated silica nanoparticles have a unit size of 9 – 30 nm, according to microstructural examination. EDX verified the presence of SiO2 in the sample. FT-IR analysis also reveals the presence of siloxane group.
处置和燃烧来自相关农业废弃物的生物质不分青红皂白地污染环境并增加温室气体排放。由于农业废弃物的可再生性和可获得性,研究人员一直在探索“废物转化为财富”的政策。在本研究中,研究了农业废弃物(花生壳(K)、核桃壳(G)和木工废弃物(N))在二氧化硅生产中的潜在用途。最初,为了获得灰,样品被焚烧。然后使用化学方法,使用简单的自下而上的方法提取纳米范围内的细粉二氧化硅。为了证实这一结果,对样品进行了XRD、SEM和FT-IR分析,并对提取的二氧化硅纳米颗粒进行了分析。根据显微结构检查,分离的二氧化硅纳米颗粒的单位尺寸为9 - 30纳米。EDX验证了样品中SiO2的存在。FT-IR分析还发现了硅氧烷基团的存在。
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引用次数: 2
Preparation and Evaluation of Viloxazine Hydrochloride Bilayer Matrix Tablets 盐酸维洛嗪双层基质片的制备及评价
Pub Date : 2023-02-24 DOI: 10.52711/0974-4150.2023.00015
K. Nagasree, Uppalanchi Prashanthi, R. Sri. S
Aim of study was to develop bilayer drug delivery for treatment of attention deficit hyperactivity disorder (ADHD) by delivering loading and maintenance dose for fast achievement of peak plasma concentration and maintaining the same respectively. The prepared drug loaded bilayer tablets were evaluated for pre and post compression parameters. The tablets were prepared by direct compression and wet granulation method. The loading dose was delivered in the form of immediate release layer prepared by different super-disintegrations and maintenance dose was delivered through sustained release layer prepared by using polymers like Ethyl cellulose and Carbopol. Both the immediate release layer and sustained release layers were separately optimized and then combined to optimize the bilayer tablets. No interactions were found between drug and excipients. Formulation containing Cross Carmellose shows immediate drug release. Formulation Containing Carbopol shows sustained release action and bilayer formulations F5 shows releases up to 12 hours. Bilayer tablets with release characteristics offer critical advantages such as, site specificity with improved absorption and efficacy.
本研究的目的是建立治疗注意缺陷多动障碍(ADHD)的双层给药方法,分别通过给药负荷和维持剂量来快速达到血药浓度峰值和维持血药浓度峰值。对制备的载药双层片的压缩前后参数进行评价。采用直接压片和湿造粒法制备。负载剂量以不同超崩解物制备的速释层形式释放,维持剂量以乙基纤维素、卡波波尔等聚合物制备的缓释层形式释放。分别对立即释放层和缓释层进行优化,再将其联合优化为双层片。未发现药物与辅料之间的相互作用。含有交叉卡梅尔糖的配方显示药物立即释放。含有卡波波尔的配方显示持续释放作用,双层配方F5显示释放长达12小时。具有释放特性的双层片剂具有重要的优势,如,部位特异性,改善吸收和疗效。
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引用次数: 0
Synthesis and Characterization of Zirconium Oxide Nanoparticles using Sapindus mukorossi (Soapnut) as natural surfactant, A green synthetic approach 以皂子为天然表面活性剂的氧化锆纳米颗粒的合成与表征,绿色合成方法
Pub Date : 2023-02-24 DOI: 10.52711/0974-4150.2023.00013
Avnish Kumar Arora, Lalit Chauhan, Pankaj Kumar
Synthesis of zirconium oxide nanoparticles have been carried out in presence of Sapindus mukorossi (Soapnut) as surfactant and characterization of the synthesized nanoparticles have been carried out using analytical techniques as XRD, Magnetic studies and TEM. Synthesized zirconium Oxide was ZrO2. The structure of the ZrO2 was monoclinic Magnetic susceptibility measurements showed that there were no unpaired electrons in ZrO2. Hence ZrO2 is diamagnetic in nature. Exact size of the zirconium oxide were find out using TEM. Size of the oxide was from 13nm – 26nm.
以皂果为表面活性剂合成了氧化锆纳米颗粒,并利用XRD、XRD、TEM等分析技术对合成的氧化锆纳米颗粒进行了表征。合成的氧化锆为ZrO2。ZrO2的结构为单斜晶型,磁化率测试表明ZrO2中没有不成对电子。因此ZrO2本质上是抗磁性的。用透射电镜测定了氧化锆的确切尺寸。氧化物的尺寸在13nm - 26nm之间。
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引用次数: 0
Silico Methodologies Modelling of Aquatic Toxicity in Tetrahymena Pyriformis Via Aromatic Amines 通过芳香胺对梨形四膜虫水生毒性的硅方法模拟
Pub Date : 2023-02-24 DOI: 10.52711/0974-4150.2023.00001
N. Ziani, Khadidja Amirat, Souhaila Meneceur, Fatiha Mebarki, Abderrhmane Bouafia
EU Directive for the Protection of Laboratory Animals mandates and encourages the use of alternative methods that could substitute, cut down on, and generally improve animal testing. Quantitative structure-activity relationship models (QSAR) as well as in vitro toxicity testing are among the most notable of such. QSARs are defined as computerized mathematical models that can utilize a compound’s (aromatic amine) biological activity—aquatic toxicity—to calculate or provide the experimental descriptors of the chemical structure of this compound. Multiple Linear Regression (MLR) and Artificial Neural Networks (ANN) are the approaches we use for the aim of predicting aquatic toxicity. The best models for two descriptors are the electrotopological descriptors derived from E-calc, and the partition coefficient derived by the Hyperchem software, applying a genetic algorithm—variable subset selection procedure. The important values of the statistical parameters obtained by the two approaches were as follows: By MLR: R2= 92.18, Q2 = 90.51, Q2ext= 95.26, F=188.5466, S = 0.1995. By ANN were: Q2 = 94.79, RMSE= 0.16, Q2ext= 91.71, RMSEext=0.18.
欧盟保护实验动物指令要求并鼓励使用可以替代、减少和普遍改善动物试验的替代方法。定量构效关系模型(QSAR)以及体外毒性测试是其中最值得注意的。qsar被定义为计算机化的数学模型,可以利用化合物(芳香胺)的生物活性-水生毒性-来计算或提供该化合物化学结构的实验描述符。多元线性回归(MLR)和人工神经网络(ANN)是我们用于预测水生毒性的方法。两个描述符的最佳模型是由E-calc导出的电拓扑描述符和由Hyperchem软件导出的分配系数,应用遗传算法-变量子集选择程序。两种方法得到的统计参数的重要值为:MLR: R2= 92.18, Q2 = 90.51, Q2ext= 95.26, F=188.5466, S = 0.1995。经人工神经网络分析:Q2 = 94.79, RMSE= 0.16, Q2ext= 91.71, RMSEext=0.18。
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引用次数: 0
Application of reactive dyes in Validation of favipiravir from pharmaceutical dosages 活性染料在法匹拉韦药量验证中的应用
Pub Date : 2023-02-24 DOI: 10.52711/0974-4150.2023.00005
R. V. Rele, Prathamesh P. Tiwatane
Simple sensitive and accurate ion pair complex formation with reactive dyes, extractive spectrophotometric methods have developed for the estimation of favipiravir in pharmaceutical dosage form. The methods are based on the formation of ion paired coloured complexes by the drug with reactive dyes like Congo red, eriochrome black T and methyl orange in acidic medium. The ion associated complexes were formed and quantitatively extracted under the experimental condition in chloroform. The absorbance values were measured at 490 nm, 500 nm, and 430 nm respectively. The proposed methods were validated statistically. Recoveries of methods were carried out by standard addition method. The linearity was found to be 5.0-30.0 μg/ml, 5 -12 μg/ml, and 2-20 μg/ml for methods respectively. The low values of standard deviation and percentage RSD indicate high precision of methods. Hence these methods are useful for routine estimation of favipiravir in pharmaceutical dosages.
利用活性染料形成离子对络合物,建立了一种简便、灵敏、准确的提取分光光度法测定药物剂型法匹拉韦的方法。这些方法是基于药物与活性染料如刚果红、eriochrome black T和甲基橙在酸性介质中形成离子配对的有色复合物。在实验条件下,在氯仿中形成离子缔合物并定量提取。分别在490 nm、500 nm和430 nm处测定吸光度值。提出的方法经统计学验证。采用标准加样法进行回收率测定。方法的线性范围分别为5.0 ~ 30.0 μg/ml、5 ~ 12 μg/ml和2 ~ 20 μg/ml。标准偏差和RSD百分比值较低,表明该方法精度较高。因此,这些方法可用于法匹拉韦药物剂量的常规估计。
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引用次数: 0
Use of Artificial Intelligence in Drug Discovery and its Application in Drug Development 人工智能在药物发现中的应用及其在药物开发中的应用
Pub Date : 2023-02-24 DOI: 10.52711/0974-4150.2023.00014
Shaikh Habeeba
Artificial intelligence is an area of computer science that deals with the ability to solve problems using symbolic programming. Artificial intelligence can help solve health-care issues with large-scale applications. Expert system development is a significant and effective application of artificial intelligence. Artificial intelligence (AI) is a technology-based system that uses a variety of advanced tools and networks to simulate human intelligence. AI makes use of systems and software that can read and learn from data and to make independent judgments in order to achieve certain goals. Its applications in the pharmaceutical area are constantly being expanded, as discussed in this chapter. Recently, healthcare sector is facing some complex challenges, such as the increased cost of drugs and therapies, and society needs specific significant changes in this area. Personalized medications with the necessary dose, release parameters, and other required aspects can be manufactured according to individual patient need with the use of AI in pharmaceutical product manufacturing. Using the latest AI-based technologies will not only reduce the time it takes for products to reach the market, but it will also improve product quality and overall safety of the manufacturing process, as well as provide better resource utilization and cost-effectiveness, emphasize the importance of automation. This chapter emphasizes the importance of artificial intelligence (AI) in the pharmaceutical sector, including drug research and development, medication repurposing, enhancing pharmaceutical productivity, and clinical trials And its current and future applications in drug discovery development.
人工智能是计算机科学的一个领域,涉及使用符号编程解决问题的能力。人工智能可以通过大规模应用帮助解决医疗保健问题。专家系统开发是人工智能的重要而有效的应用。人工智能(AI)是一种基于技术的系统,它使用各种先进的工具和网络来模拟人类的智能。人工智能利用能够从数据中阅读和学习并做出独立判断的系统和软件来实现某些目标。正如本章所讨论的,它在制药领域的应用正在不断扩大。最近,医疗保健行业正面临着一些复杂的挑战,例如药物和治疗成本的增加,社会需要在这一领域进行具体的重大变革。通过在药品生产中使用人工智能,可以根据患者的个人需要制造具有必要剂量、释放参数和其他必要方面的个性化药物。使用最新的基于人工智能的技术不仅可以减少产品进入市场所需的时间,还可以提高产品质量和制造过程的整体安全性,并提供更好的资源利用率和成本效益,强调自动化的重要性。本章强调了人工智能(AI)在制药领域的重要性,包括药物研发、药物再利用、提高制药生产力和临床试验,以及它在药物发现开发中的当前和未来应用。
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引用次数: 0
Plant-based Isoquinoline Alkaloids: A Chemical and Pharmacological Profile of Some Important Leads 植物基异喹啉生物碱:一些重要线索的化学和药理学概况
Pub Date : 2023-02-24 DOI: 10.52711/0974-4150.2023.00008
Arjun Singh
Plant-based products are a one-of-a-kind source of favoured molecules with a wide scaffold variety and broad multi-target potential for the treatment of complicated disorders. Among multi-target NPs, alkaloids have showed anti-inflammatory, anticancer, cardioprotective, and neuroprotective effects, supporting their promise in the treatment of chronic multifactorial disorders. Several recent investigations have revealed that isoquinoline alkaloids (IAs) have multimodal potential, sparking growing interest in the polypharmacological research of these small molecules, particularly in the field of neurological illnesses and cancer. IAs are a broad and diversified category of nitrogenous compounds that are extensively dispersed in living organisms, mostly in plants family. Isoquinolines are known as highly conserved metabolites in early vascular plants at the chemotaxonomic level; moreover, biochemical and molecular phylogenetic investigations have revealed that these alkaloids play an evolutionarily monophyletic role in basal angiosperms.As a result, medicinal chemistry has been experimenting with various ways in order to overcome the constraints of existing paradigms and increase the effectiveness of novel therapeutic molecules. In this context, the search or design of multi-target medications has shown an accelerated breakthrough; in fact, this strategy has sparked the interest of both the scientific community and the pharmaceutical business, allowing several multimodal agents already on the market to be positioned.
基于植物的产品是一种独特的有利分子来源,具有广泛的支架种类和广泛的多靶点潜力,可用于治疗复杂疾病。在多靶点NPs中,生物碱显示出抗炎、抗癌、心脏保护和神经保护作用,支持它们在治疗慢性多因素疾病方面的前景。最近的一些研究表明,异喹啉生物碱(IAs)具有多模态潜力,引起了人们对这些小分子的多药理学研究的兴趣,特别是在神经系统疾病和癌症领域。IAs是广泛分布于生物体内的一类氮化合物,主要分布于植物科。异喹啉在早期维管植物的化学分类水平上被认为是高度保守的代谢物;此外,生物化学和分子系统发育研究表明,这些生物碱在基生被子植物中起着单系进化作用。因此,药物化学一直在尝试各种方法,以克服现有范式的限制,提高新的治疗分子的有效性。在这种背景下,多靶点药物的研究或设计已经显示出加速突破;事实上,这一策略引起了科学界和制药企业的兴趣,使市场上已有的几种多模式药物得以定位。
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引用次数: 0
In silico molecular docking against C-KIT Tyrosine Kinase and ADME studies of 3-Ethyl-2-(2,3,4-trifluoro-phenylimino)-thiazolidin-4-one derivatives 针对C-KIT酪氨酸激酶和ADME的3-乙基-2-(2,3,4-三氟苯基)-噻唑烷-4- 1衍生物的硅分子对接研究
Pub Date : 2023-02-24 DOI: 10.52711/0974-4150.2023.00010
Shreyash D. Kadam, D. Mammen, Deepak S. Kadam, Sudhakar G. Patil
Thiazolidin-4-one derivatives have been hailed as “wonder nucleus” due to their profound biological activities. A number of derivatives with variable functional groups attached to the five-membered heterocyclic ring which have been synthesized and further subjected to molecular docking studies, against C-KIT Tyrosine kinase target protein (1T46). The interactions, binding and affinity variations due to differences in functional groups have been studied using ChemDraw Ultra 7.0, RCSB – Protein Data Bank, BIOVIA Discovery Studio Visualizer 2021, MGL AutoDock Tools, AutoDock Vina and Vina Split software. The docking studies showed good interaction of the synthesized molecules with the 1T46 target protein. The ADME studies of these molecules have also been studied to identify which of the synthesized molecules have the potential to cross the Human Intestinal lining (HIA), as well as the BBB barrier. Out of the 18 molecules studied, 12 of them showed good potential to be absorbed by the intestine out of which only one molecule was able to show potential to cross the BBB barrier. There were 4 molecules that could not cross both the barrier. These studies could reveal which functionalities present attached to the thiazolidin-4-one could assist in human intestinal absorption and the crossing of the BBB barrier.
噻唑烷-4- 1衍生物因其具有丰富的生物活性而被誉为“神奇核”。针对C-KIT酪氨酸激酶靶蛋白(1T46),已经合成了许多具有可变官能团的五元杂环衍生物,并进行了进一步的分子对接研究。使用ChemDraw Ultra 7.0、RCSB - Protein Data Bank、BIOVIA Discovery Studio Visualizer 2021、MGL AutoDock Tools、AutoDock Vina和Vina Split软件研究了功能基团差异导致的相互作用、结合和亲和变化。对接研究表明,合成的分子与1T46靶蛋白具有良好的相互作用。对这些分子的ADME研究也进行了研究,以确定哪些合成分子有可能穿过人类肠道内膜(HIA)和血脑屏障。在研究的18个分子中,有12个分子显示出被肠道吸收的良好潜力,其中只有一个分子能够显示出穿过血脑屏障的潜力。有4个分子不能同时穿过两个势垒。这些研究可以揭示附着在噻唑烷-4- 1上的哪些功能可以帮助人体肠道吸收和穿过血脑屏障。
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引用次数: 0
Performance Evaluation of Mentha longifolia Plant for Domestic Waste water Treatment under arid climate conditions (Tamanrasset region, Algeria) 干旱气候条件下长叶薄荷厂处理生活污水的性能评价(阿尔及利亚Tamanrasset地区)
Pub Date : 2023-02-24 DOI: 10.52711/0974-4150.2023.00006
Abdelaziz Bouhoreira, Benzahi Khedidja, B. Labed, Zorai Ameur, Serraoui Mabrouk, Sabrina Batoul Benachoura, Benzahi Rabia
The objective of this work is to highlight the purification performance of the Mentha longifolia plant for wastewater under a horizontal flow regime and a hot and dry (arid) climate. In this research, we made a comparison between a planted bed of Mentha longifolia and a non-planted bed (control) as well as the study of the performance of the Mentha longifolia to purify the wastewater. The study is carried out according to an experimental pilot in the urban wastewater treatment zone within the National Sanitation Office (NSO) in Tamanghasset. The experimental pilot consists of pots of capacity 130 liters filled from bottom to top on a thickness of 45 cm of gravel (15 / 25mm) of 10 cm of sand. The pot is planted with young stems of Mentha longifolia (36 stems / m2) and the other non-planted pot is taken as a control. The pots are fed by urban wastewater (18 liters / day), once a week. The water obtained after 5 days is collected in a container located under the pot. The performance information shown is for the periods from the month of January - April 2021.After four months of follow –up, we obtained the pollutant removal results with the following percentages: COD (77.74%), BOD5 (72.47%), MES (87.78%), NO3-(63.40%), NO2- (62.03%), PO43- (62.77%), E. coli (99.43%). The existence of the plant Mentha longifolia in planted beds maintains a sufficient porosity that prevents clogging. The significant reduction of pollutants and pathogenic microorganisms allows us to consider the reuse of treated water in agriculture and industry.
这项工作的目的是强调薄荷植物在水平流动制度和干热(干旱)气候下对废水的净化性能。在本研究中,我们对长叶薄荷种植床和未种植床(对照)进行了比较,并研究了长叶薄荷净化废水的性能。这项研究是根据塔曼加塞特国家卫生办公室(NSO)城市污水处理区的一项实验性试点进行的。试验装置由容量为130升的罐子组成,从底部到顶部填充10厘米沙子厚度为45厘米的砾石(15 / 25毫米)。盆栽种植长叶薄荷幼茎(36茎/ m2),另一个未种植盆栽作为对照。这些罐子由城市废水(18升/天)喂养,每周一次。5天后获得的水被收集在位于锅下的容器中。所示的性能信息为2021年1月至4月期间。经过4个月的随访,得到的去除率分别为:COD(77.74%)、BOD5(72.47%)、MES(87.78%)、NO3-(63.40%)、NO2-(62.03%)、PO43-(62.77%)、大肠杆菌(99.43%)。长叶薄荷植物在种植床上的存在保持了足够的孔隙,防止堵塞。污染物和致病微生物的显著减少使我们能够考虑在农业和工业中重新使用处理过的水。
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引用次数: 0
Validated RP-HPLC Method for Simultaneous Estimation of Perphenazine and Amitriptyline in Bulk and Tablet Dosage form 反相高效液相色谱法同时测定安非那嗪和阿米替林散装和片剂的含量
Pub Date : 2023-02-24 DOI: 10.52711/0974-4150.2023.00009
P. A. Reddy, Vommidarapu Srujana, R. Sri. S
A new, simple, precise, rapid, selective and stability reversed-phase high performance liquid chromatographic (RP-HPLC) method has been developed and validated for the simultaneous quantification of Perphenazine and Amitriptyline in pure form and its pharmaceutical dosage form. The method is based on Phenomenex Gemini C18 (4.6×250mm) 5µ column. The separation is achieved using isocratic elution by Methanol: TEA Buffer in the ratio of 65:35% v/v, pumped at flow rate 1.0mL/min and UV detection at 230nm. The column is maintained at 40°C throughout the analysis. The total run time is about 6min. The method is validated for specificity, accuracy, precision and linearity, robustness and ruggedness, system suitability, limit of detection and limit of quantitation as per International conference of harmonization (ICH) Guidelines. The method is accurate and linear for quantification of Perphenazine, Amitriptyline between 10 - 50µg/mL and 20 - 100µg/mL respectively. Further, satisfactory results are also established in terms of mean percent- age recovery (100.37% for Perphenazine and 100.34% for Amitriptyline, intra-day and inter-day precision (<2%) and robustness. The advantages of this method are good resolution with sharper peaks and sufficient precision. The results indicate that the method is suitable for the routine quality control testing of marketed tablet formulations.
建立了一种简便、精确、快速、选择性和稳定性好的反相高效液相色谱(RP-HPLC)方法,用于同时定量高纯度的Perphenazine和Amitriptyline及其制剂剂型。方法采用Phenomenex Gemini C18 (4.6×250mm) 5µ色谱柱。采用甲醇:TEA缓冲液,以65:35% v/v的比例等密度洗脱,泵送流速1.0mL/min,紫外检测波长为230nm。在整个分析过程中,色谱柱保持在40°C。总运行时间约为6分钟。该方法的特异性、准确性、精密度和线性度、稳健性和坚固性、系统适用性、检出限和定量限按照国际协调会议(ICH)指南进行了验证。该方法在10 ~ 50µg/mL和20 ~ 100µg/mL范围内定量,结果准确、线性。此外,在平均年龄回收率(奋那嗪为100.37%,阿米替林为100.34%)、日内和日内精密度(<2%)和稳健性方面也建立了令人满意的结果。该方法的优点是分辨率高,峰值清晰,精度高。结果表明,该方法适用于市售片剂的常规质量控制检验。
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引用次数: 0
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Asian Journal of Research in Chemistry
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