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90 articles for “rate kinetics”
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Design and Evaluation Cefaclor Microspheres for Bioavailability Enhancement
Abstract: This study attempted to formulate microspheres for oral administration of Cefaclor by using different polymers like Hydroxypropyl methylcellulose (HPMC) K4M, (HPMC) K15M and Ethylcellulose (EC) which increases the gastric residence time and thereby the bioavailability. Solvent evaporation method was found to be the best due to its ease of fabrication without compromising the activity of the drug. Cefaclor is a second-generation cephalosporin antibiotic used to treat certain ear, lung, skin, …
Published in Research & Reviews: A Journal of Drug Formulation, Development and Production · Vol. 6, Issue 3, 2019 · pp. 39–48 Read article
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Use of Molybdenum Doped Titanium Dioxide as Nanophotocatalyst in the Degradation of Methylene Blue under Visible Light
Abstract: The Earth is facing environmental pollution in its different facets, out of which water pollution is a major problem. Photocatalysis, which is an important part of advanced oxidation processes, is such a technology, which will be beneficial for waste water treatment due to its green chemical nature. In the present work, the photocatalytic degradation of methylene blue (MB) was carried in the presence of molybdenum doped titania nanophotocatalyst and progress …
Published in Journal of Water Pollution & Purification Research · Vol. 2, Issue 2, 2015 · pp. 23–28 Read article
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AI-Driven IoT Ecosystems for Real-Time Thermo-Chemical Decision Making
Abstract: The efficient management of thermo-chemical processes is a critical challenge in modern industry, where maintaining precision, operational safety, and energy efficiency directly influences productivity and sustainability. The convergence of the Internet of Things (IoT) and Artificial Intelligence (AI) has transformed conventional industrial systems into intelligent, data-driven environments capable of continuous monitoring, predictive analysis, and autonomous decision-making. By integrating interconnected sensors, edge computing, cloud platforms, and advanced machine learning algorithms, industries …
Published in International Journal of Photochemistry and Photochemical Research · Vol. 4, Issue 2, 2026 · pp. 10–15 Read article
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Photo-Catalytic Degradation of Rhodamine-B by using UV/TiO2 and Nb2O5 Process: A Kinetic Study
Abstract: The photo-catalytic degradation of Rhodamine-B (RB) in aqueous solution with titanium dioxide (TiO2) and niobium pentaoxide (Nb2O5) as photocatalyst in slurry form has been carried out using UV-A light (254 nm). The effect of various parameters such as catalyst loading, pH and initial concentration of the RB dye on degradation have been determined. An attempt has been made to study the effect of process parameters through concentration of dye, amount …
Published in Journal of Catalyst & Catalysis · Vol. 1, Issue 3, 2014 · pp. 12–24 Read article
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The Kinectics of Petroleum Hydrocarbon Degradation in Soil: The Concept of Ponderosa Lemon Integrity as Bio-stimulant
Abstract: The kinesics of petroleum hydrocarbon degradation in soil: the concept of ponderosa lemon integrity as bio-stimulant with respect to the impact of preparation condition of room and sun-dried was monitored. The kinetic values of the effect of the biostimulant dosage were monitored and the data obtained from the experimental investigation was useful in the computation of the maximum specific rate of the substrate degradation and the dissociation constant of the …
Published in Journal of Petroleum Engineering & Technology · Vol. 15, Issue 3, 2025 · pp. 22–32 Read article
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Thermodynamic, Kinetic and Mechanistic Investigations of Ruthenium(III) Catalyzed Methylparaben Oxidation by Diperiodatocuprate(III) in Aqueous Alkaline Medium
Abstract: The kinetics of ruthenium(III) catalyzed degradative oxidation of methylparaben by the copper complex, diperiodatocuprate(III) in alkaline medium is studied at 25ºC and at a ionic strength of 8.0 × 10−2 mol dm−3. In the presence of catalyst ruthenium(III), the reaction between methylparaben and diperiodatocuprate(III) in aqueous alkaline medium exhibits 1:1 stoichiometry. The oxidation products were identified by UV-visible, GC-MS and IR spectroscopy. The reaction exhibited unit order in case of …
Published in Journal of Catalyst & Catalysis · Vol. 2, Issue 1, 2015 · pp. 4–17 Read article
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High-Performance Carbon Nanotube-Reinforced Biodegradable Polymer Composites for Packaging
Abstract: The growing issues concerning the properties of petroleum-based plastics on the environment increased the demand for biodegradable alternatives and polylactic acid (PLA) is one of the most promising options available. However, its poor toughness, thermal resistance, and barrier properties limit broader applications in sustainable packaging. This study reports the fabrication and characterization of PLA-based nanocomposites reinforced with carbon nanotubes (CNTs) at varying loadings (0.1-2 wt.%). Structural analysis (FTIR, XRD) confirmed …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 183–194 Read article
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Formulation and Evaluation of Transungual Drug Delivery of Fluconazole Using Permeation Enhancers Screened by Hydration of Nail Plate
Abstract: The objective of the work was to formulate nail lacquer containing fluconazole an antifungual drug for the treatment of onychomycosis. Onychomycosis, a common fungal nail infection affects the people. Topical and ungual therapy is limited because of the poor permeation of the drug through nail plate. Film base was prepared using varying concentration of cellulose acetate and ethyl cellulose as polymers. The permeation enhancers were screened by nail plate hydration. …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 8, Issue 3, 2017 · pp. 32–45 Read article
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Mechanistic and Catalytic Behavior of Os(VIII) for the Chlorpheniramine Maleate and Bromamine-B Redox System: A Kinetics Based Approach
Abstract: Chlorpheniramine maleate (CPM) is an important antihistamine agent. To the best of our knowledge there is no report in the literature about the oxidation of CPM with halogen + 1 oxidant from the stand point of its kinetics and mechanistic chemistry. Hence, a systematic kinetics and mechanistic study on the oxidation of CPM with bromamine-B (BAB) in the presence of NaOH and Os(VIII) catalyst has been carried out at 303 …
Published in Journal of Catalyst & Catalysis · Vol. 2, Issue 1, 2015 · pp. 18–31 Read article
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Application of Monod and Finite Element Models for Groundwater Cleanup in the Niger Delta Area of Nigeria
Abstract: The Niger Delta region of Nigeria, known for its rich biodiversity and extensive oil and gas exploration activities, faces significant environmental degradation, including groundwater contamination. This study investigates the application of Monod kinetics and Finite Element Models (FEM) in the cleanup of groundwater contamination in the Niger Delta. Specifically, the research integrates Monod models to understand microbial degradation rates in contaminated aquifers and FEM to simulate the groundwater flow and …
Published in Journal of Catalyst & Catalysis · Vol. 12, Issue 1, 2025 · pp. 39–47 Read article
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The Impact of Bacteria and Biostimulants on Crude Oil Breakdown in Loamy Soil
Abstract: This study investigates the influence of bacteria and biostimulants—specifically Bryophyllum pinnatum leaves soaked in both water and ethanol—on the degradation of crude oil in loamy soil. A laboratory-scale bioremediation setup was employed using a batch reactor model and first-order degradation kinetics to assess total petroleum hydrocarbon (TPH) breakdown under controlled conditions. Various analytical tools and procedures, including gas chromatography (Agilent 6890) and microbial media such as nutrient agar and mineral …
Published in International Journal of Pollution: Prevention & Control · Vol. 3, Issue 2, 2025 · pp. 15–22 Read article
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Influence of Rheological and Physical Properties of Particles and Liquid media to compute Terminal Fall Velocity: A Review
Abstract: The hydrodynamic demeanor of falling particles and the liquid media in which they fall, supported by data analytics, is indispensable in the computation of the terminal falling rate. which is a critical concept in many civil engineering disciplines. The application of terminal settling velocity becomes vital to prevent the settling of microplastic particles (< 5 mm in size), several metal particles, polymers, etc.; especially those of irregular shape. Past research …
Published in Journal of Polymer & Composites · Vol. 12, Issue 4, 2024 · pp. 28–40 Read article
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Characterization of Thermochemical Properties and Combustion Behavior In AP/HTPB Polymer Composite Solid Propellant for Enhanced Performance
Abstract: The thermal decomposition of solid propellants containing hydroxyl-terminated polybutadiene (HTPB) binder is a complex process, driven by multiple interacting chemical and physical factors. Solid propellant combustion characteristics are profoundly influenced by the composition of the propellant, the conditions of pressure, the starting temperature, and a range of aero-thermochemical parameters. The paper explores the influence of polymeric structure in the HTPB binder on thermal decomposition characteristics of the AP/HTPB composite propellants …
Published in Journal of Polymer & Composites · Vol. 13, Issue 3, 2025 · pp. 502–511 Read article
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Research on Turbine Volute design using CFX
Abstract: Volute is centrifugal part or basically it is a casing of turbine, centrifugal pump and turbo chargers. It is the most important component of turbine which converts velocity into pressure by the help of blades. It has a funnel type shape, with increasing diameter with curved shape. It receives fluid from the impeller and maintaining its velocity to the diffuser. While converting the fluids velocity into kinetic energy there are …
Published in Recent Trends in Fluid Mechanics · Vol. 6, Issue 2, 2019 · pp. 47–59 Read article
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Synthesis and characterization of mixed SnO2-ZnO Nano composites material to study the kinetics of catalytic reduction of Aromatic Nitro compounds
Abstract: A straightforward and cost-effective method was employed to synthesize zinc oxide (ZnO) nanostructures supported on tin oxide (SnO₂) for catalytic applications. This hybrid nanocomposite, formed by integrating ZnO with SnO₂, exhibited impressive catalytic activity in the reduction of various nitro compounds. The synergistic interaction between ZnO and SnO₂ significantly enhanced the surface area and active sites of the catalyst, thereby improving its overall efficiency. The resulting SnO₂-ZnO nanocomposite not only …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 15, Issue 3, 2025 · pp. 8–14 Read article
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Non-destructive Application of Tracer Isotopes to Study the Kinetics of Iodide and Bromide Ion-isotopic Exchange Reactions in Anion Exchange Resins Indion-103 and Duolite A-611
Abstract: The present study is concerned with non-destructive application of radio-analytical technique for characterization of industrial grade ion exchange resins Indion-103 and Duolite A-611. The radioactive tracer isotopes 131I and 82Br were used to trace the kinetics of iodide and bromide ion-isotopic exchange reactions taking place in the two resins. It was observed that during bromide and iodide ion-isotopic exchange reactions, under identical experimental conditions of temperature remaining constant at 40 …
Published in Journal of Nuclear Engineering & Technology · Vol. 3, Issue 2, 2013 · pp. 14–24 Read article
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Study of the Hammett equation for oxidation of 2 – Hydroxy – 1 - Naphthalidene Anil and para substituted chloroanils by potassium bromate in acid medium
Abstract: The kinetics of oxidation of the Schiff base and its substituted anils by potassium bromate in aquo-acetic acid medium has been studied in this work. The study of thermodynamic parameters is done, and the rate constants for the reaction are determined. The plot of log{ks/k0} against the substituent constant (ï³ ) is plotted for para and meta substitution and the reaction constant (ï²) is calculated. The plot of ï„H against …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 7, Issue 2, 2016 · pp. 1–4 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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Activation Energy in Photochemical and Thermally Driven Reactions: Mechanistic Insights, Kinetic Modelling and Photocatalytic Applications
Abstract: Chemical reactions constitute fundamental processes in which reactants are transformed into products through the breaking and formation of chemical bonds. In photochemical systems, these transformations are initiated or influenced by the absorption of light, making energy transfer mechanisms particularly significant. A key parameter governing reaction kinetics is activation energy, defined as the minimum energy required for reactant molecules to undergo a successful transformation. This article focuses on the role of …
Published in International Journal of Photochemistry and Photochemical Research · Vol. 4, Issue 1, 2026 · pp. 21–26 Read article
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Evaluation of Lemon Grass (Cymbopogon Citratus) Performance for Petroleum Hydrocarbon Degradation in Soil Environment
Abstract: The evaluation of lemon grass (cymbopogon citratus) performance for petroleum hydrocarbon degradation in soil environment was monitored with respect to contact time or period of exposure. Models were developed in this research to demonstrate the potential of the first-order kinetic, Michaelis Menten and the LineWeaver Burk Plot, and the evaluation of the effect of the biostimulant dosage was monitored in accordance the total petroleum hydrocarbon degradation. The performance of lemon …
Published in Journal of Catalyst & Catalysis · Vol. 11, Issue 1, 2024 · pp. 33–49 Read article