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786 articles for “Reaction”
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Optimization of Reaction Parameters for Biodiesel (Methyl Ester) Synthesis Using Surface Response Methodology
Abstract: The Polyoxo vanadate catalytic trans-esterification of waste cooking oil (WCO) was carried out by optimizing four reaction parameters which include: catalyst loading, methanol/oil ratio, temperature, and reaction time. These optimized parameters are 0.5 g, 0.8 g, and 1.2 g catalyst loading, 3:1, 6:1 and 9:1 methanol/oil ratio, 45°C, 60°C and 65°C reaction temperature, 45 min, 60 min and 90 min reaction time. The regression equation in the uncoded units of …
Published in OmniScience: A Multi-disciplinary Journal · Vol. 14, Issue 3, 2024 · pp. 20–28 Read article
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AI-Powered Pharmacovigilance: Revolutionizing Adverse Drug Reaction Detection, Reporting, and Future Perspectives-A Review
Abstract: Pharmacovigilance is very important in drug safety as it monitors, identifies and prevents adverse drug reactions (ADR). Conventional pharmacovigilance systems are usually limited by underreporting and delay in signal detection as well as the inability to scale up. The pharmacovigilance sphere is undergoing a seismic shift with the arrival of AI. The use of AI-driven tools, such as machine learning and natural language processing, is transforming how ADR detection is …
Published in Research and Reviews: A Journal of Pharmacology · Vol. 15, Issue 3, 2025 · pp. 01–07 Read article
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5-Methyl-2-phenyl-2,4-dihydro-3H-pyrazol-4-one: Synthesis and Reactions
Abstract: The presence of the five-member pyrazole nucleus in different structures leads to a large diversity in its applications. In almost every research study, the pyrazole derivatives biological importance faces a competitive challenge in areas of technology, medicine and agriculture. This reflects the description of these derivatives as antibacterial, antifungal, anticancer, antidepressant, anti-inflammatory, anti-tuberculosis, antioxidant as well as antiviral agents. In our review, we will discuss and show the highlights of …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 16, Issue 3, 2025 · pp. 76–87 Read article
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Solid-State Reactions: Mechanistic Insights, Kinetic Behavior and Emerging Applications in Advanced Materials
Abstract: Solid-state reactions are fundamental to the synthesis and transformation of inorganic materials, playing a crucial role in the development of ceramics, semiconductors, catalysts, and energy storage systems. Unlike reactions in liquid or gaseous phases, they are limited by restricted atomic mobility and typically require elevated temperatures to enhance diffusion and overcome activation energy barriers. These reactions proceed through interfacial contact between solid reactants, followed by nucleation of product phases and …
Published in International Journal of Crystalline Materials · Vol. 3, Issue 1, 2026 · pp. 10–14 Read article
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The Specificity of Purine Derivatives towards Xanthine Oxidase Enzyme and the Factors Affecting the Enzyme Catalyzed Reaction
Abstract: Xanthine oxidase (XO) is a molybdenum-containing enzyme catalyzing the hydroxylation of a sp2-hybridized carbon in a broad range of aromatic heterocycles and aldehydes. Further, it is a key enzyme in the last two steps of purine metabolism. Thus, the need for an understanding and developing unified reaction mechanism to minimize the amount of accumulated uric acid inside human body has led us to the present detailed study of the reaction …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 6, Issue 2, 2016 · pp. 28–44 Read article
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Nondestructive Technique in Study of Purolite NRW-5010 and Duolite A-638 Anion Exchange Resins
Abstract: The present paper is one of the interesting applications of radioactive isotopes in nondestructive technique for performance evaluation of anion exchange resins Purolite NRW-5010 and Duolite A-638. The radioactive isotopes 131I and 82Br were used to trace the kinetics of ion-isotopic exchange reactions taking place between the resin surface and external ionic solution. It was observed that for bromide ion-isotopic exchange reaction at 35.0°C, when the concentration of bromide ions …
Published in Journal of Nuclear Engineering & Technology · Vol. 3, Issue 3, 2013 · pp. 1–11 Read article
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Analysis of Diethanolamide Reaction by using FTIR Technique
Abstract: The purpose of this work is to study the amidification reaction for production of diethanolamide from ethyl acetate and diethanolamine by using sulfuric acid catalyst. The amidation, which is the reaction between ethyl acetate and diethanolamine, was held in a glass batch reactor with mole ratio 1:1 using acid catalyst (H2SO4) 0.5% (w/w) and 200 rpm stirring. The reaction temperature is 160°C constant, and sampling was performed after every 30 …
Published in Journal of Catalyst & Catalysis · Vol. 3, Issue 1, 2016 · pp. 7–10 Read article
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Role of Solid Acid Catalyst in Isopropylation Reaction
Abstract: Cumene synthesis was carried out by the reaction of benzene with isopropyl alcohol in the vapour phase over rare earth metal modified 13X zeolite. Zeolite modification was done by exchanging sodium ions of the zeolite with cerium ions to vary the acidity of the catalyst in the range of 0.25‑1.36 meq/g. The synthesis was carried out over a wide range of operating conditions. The synthesis conditions were optimized by studying …
Published in Journal of Catalyst & Catalysis · Vol. 2, Issue 2, 2015 · pp. 19–26 Read article
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Geopolymerization: A Review on Physico-chemical Factors Influence to the Reaction Process
Abstract: A geopolymer is one of materials belonging to an inorganic polymer group based on alumino-silicate structural networks. The material is a product of reactions among the activated alumino silicate resources and solutions of alkaline activators in various conditions. There have been many investigations conducted to produce geopolymer using different raw materials and methods. The chemical factors have a decisive role in the reaction process and the formation of the geopolymeric …
Published in Journal of Polymer & Composites · Vol. 8, Issue 3, 2020 · pp. 1–9 Read article
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A Preliminary Computational Study of the Mechanism of Oxidation of D-Fructose by Iodine in Gas Phase
Abstract: This paper presents a preliminary computational study of the mechanism of oxidation of D-fructose by iodine in the gas phase. The study shows that the oxidation reactions proceeded in three consecutive elementary steps, in which three transition states were produced. The reactions also produced two intermediates. Heats of formation and other thermodynamic parameters of all species involved were also calculated and presented. The results obtained were based on the analyses …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 6, Issue 2, 2015 · pp. 41–49 Read article
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Adverse Drug Reactions Monitoring by Healthcare Professionals in Noida, Uttar Pradesh Region—A Study on Knowledge, Attitude and Method of Application
Abstract: The study was aimed to assessing the knowledge, attitude and method of application towards adverse drug reactions reporting by the doctors and other healthcare professionals (HCPs) in Delhi-NCR (Noida region), to get an insight into the causes of under-reporting of adverse drug reactions (ADRs) and to suggest possible ways of improving this method of reporting. A structured validated questionnaire was used consisting of 10 questions divided into three components; awareness, …
Published in Research and Reviews: A Journal of Pharmacology · Vol. 7, Issue 3, 2017 · pp. 1–6 Read article
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Nano- Catalysts for Enhanced Performance in Hydrogenation Reactions
Abstract: The development of nano-catalysts has revolutionized the field of hydrogenation reactions, offering unparalleled efficiency and selectivity. This study explores the synthesis, characterization, and application of novel nano-catalysts designed to enhance hydrogenation processes. By leveraging advanced materials science techniques, we have engineered catalysts with precisely controlled particle sizes, shapes, and surface properties. These nano-catalysts exhibit remarkable activity and stability, attributed to their high surface area-to-volume ratios and unique electronic structures. Our …
Published in Journal of Catalyst & Catalysis · Vol. 11, Issue 1, 2024 · pp. 22–27 Read article
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A Research Project on Identification and Reporting of Adverse Drug Reactions in General Medicine Ward of an ESI Hospital
Abstract: Aim: The study aims at identifying and reporting the adverse drug reactions (ADRs) in general medicine ward of an ESI hospital, Bangalore, Karnataka, India. Objective: Prescription study, analysis and prevention of medication-related problems (ADRs), identifying and minimizing medication-related problems, improving patient safety initiatives, improving the patient health-related outcomes, reducing work burden of physicians, and providing better therapy to large number of patients. Methodology: Study Design: It was a prospective and …
Published in Research and Reviews: A Journal of Toxicology · Vol. 8, Issue 3, 2018 · pp. 9–14 Read article
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Domino Reaction for the Synthesis of Nitroolefin Heterocyclic Compound Via Thiazole Formation Followed by Claisen Rearrangement
Abstract: The Baylis-Hillman adducts derived from nitroolefins have been conveniently transformed into Claisen rearrangement. These substances, which include benzothiazole moiety, are very biologically reactive substances. This novel nitro derivative of 2-((E)-2-nitro-3-phenylallyloxy)-3-ethoxybenzaldehyde was simply treated with mole percentage of 2-(2-(2-aminophenyl) disulfanyl) benzenamine in melt reactive condition. Hence this novel 2-(benzo[d]thiazol-2-yl)-6-ethoxy-4-((E)-2-nitro-3-phenylallyl)phenol core unit compounds was very intrusting and new opportunities for the preparation of closely related to the different [3,3] sigmatropic rearrangements related …
Published in Journal of Modern Chemistry & Chemical Technology · pp. 18–22 Read article
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The Comparative Catalytic Activities of Tungstate and Molybdate Ions on Oxygen Transfer Reactions Used in Production of Some Petrochemicals
Abstract: The comparative catalytic activities and kinetics of formation of glycerine from oxidation of allyl alcohol by hydrogen peroxide in the presence of sodium tungstate and sodium molybdate as catalyst have been studied. The reaction is zero order with respect to hydrogen peroxide concentration and the reaction is first order with respect to allyl alcohol and catalyst (sodium tungstate or sodium molybdate) concentrations. Tungstate catalyzed formation of glycerine from allyl alcohol …
Published in Journal of Catalyst & Catalysis · Vol. 4, Issue 1, 2017 · pp. 24–29 Read article
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Perturbant Effect of Iron in Free and Complexed Form on the Briggs-Rauscher Oscillating Reaction
Abstract: The present work is aimed to investigate the perturbations of the oscillatory regime of Briggs-Rauscher (BR) reaction by Fe(bipy)32+ and Fe(C2O4)33‑ complexes in a continuous stirred tank reactor (CSTR). The path of the perturbation (immediate quenching of oscillation -inhibition time- resumption of oscillations) provoked by the ferrous complex (Fe(bipy)32+) was found different to that of the ferric complex (Fe(C2O4)33‑). The initial concentration of Fe(bipy)32+ complex showed a linear dependence on …
Published in Journal of Catalyst & Catalysis · Vol. 2, Issue 2, 2015 · pp. 15–18 Read article
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Formation of Reaction Bubbles in FCC Riser Reactor
Abstract: For modeling FCC unit, art of defining undefined hydrocarbon misxtures in conjunction with application of two different specialized fields of Chemical Engineering–Chemical Reaction Engineering (CRE) and Computational Fluid Dynamics (CFD) are required. CRE needs elaboarte and appropriate definition of undefined mixture and their chemical kinetics, whereas CFD needs solution of more regorous differential equations to define fluctuating and turbulent flow. Most of the reported works in available literature seems to …
Published in Journal of Petroleum Engineering & Technology · Vol. 1, Issue 1-3, 2011 · pp. 16–27 Read article
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Detection of Listeria monocytogenes in Milk and Ice Cream by Polymerase Chain Reaction
Abstract: Abstract The present study was undertaken to standardize PCR assay for detection of L. monocytogenes and Listeriolysin O from livestock foods and compare its efficacy with conventional cultural methods. A set of primer derived from iap gene and other set derived from hlyA gene were used for detection of L. monocytogenes and Listeriolysin O in the PCR assay. The PCR assay was initially standardized by optimizing the concentration of the …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 5, Issue 1, 2015 · pp. 24–35 Read article
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Impact of Selective Nanocatalysts in Nitroarene Reduction Reactions
Abstract: This review provides a concise overview of the catalytic reduction of nitroarene using NaBH4 as a reducing agent. The focus is on the use of metallic nanoparticles (NPs), transition metallic NPs, and nanocomposites as reduction catalysts, specifically Ag, Au, Pd, and Cu NPs. These NPs have unique biophysical characteristics and highly accessible surfaces, making them suitable for various research fields, including medical and environmental research. The study also investigates the …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 25, Issue 2, 2023 · pp. 33–46 Read article
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Petroleum Ether, A Laboratory Solvent Induced Cannibalism, Piloerection and Straub Tail Reaction in Rodents
Abstract: Petroleum ether is one of the most commonly used solvent in extraction of herbals/biological substances. In pharmacognostical studies, petroleum ether is used as a solvent for extract of herbals which was used for further pharmacological investigation. In a few of their studies, the authors have observed petroleum ether-induced piloerection which may be related to the herbal extract or trace solvent effect. Complete removal of petroleum ether solvent in herbal extract …
Published in Research & Reviews: A Journal of Pharmacognosy · Vol. 1, Issue 2, 2014 · pp. 6–10 Read article