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1223 articles for “Acidity”
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Modulating Immune System of Mosquitoes with A Novel Salicylate Derivative: A Bioinformatics-Based Study
Abstract: The present study aims to compare the interactions of a novel derivative of salicylic acid, 5-(2-nitroethynl) salicylic acid (5-SANA, salicylic acid nitroalkene), and salicylic acid with the critical residues of mosquito’s juvenile hormone binding protein (mJHBP). Given the better water solubility of 5-SANA and salicylic acid, it is believed that they can interact quicker than the natural substrate, juvenile hormone (JH), with the cavity of mJHBP, a circulating protein in …
Published in Research and Reviews : A Journal of Immunology · Vol. 16, Issue 1, 2026 · pp. 1–5 Read article
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TiO2-ZrO2 Supported Nickel Oxide Catalysts for Hydrogenation of Levulinic Acid to -Valerolcatone
Abstract: The Titania-Zirconia (TZ) mixed oxide sample (50:50 wt.% percent) was prepared by a simple coprecipitation method and used as a support for the nickel catalyst. The various loadings of nickel content from 1 to 20 wt.% were synthesized for the production of γ-valerolactone (GVL) from levulinic acid (LA). Among all the tested samples, the 5 wt.% Ni/TZ sample exhibited the 98% conversion of LA and 96% selectivity to GVL and …
Published in Emerging Trends in Chemical Engineering · Vol. 9, Issue 3, 2022 · pp. 35–44 Read article
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Synthesis, Characterization and Drug Delivery Application of Poly (Acid Fuchsin) Based Triblock Copolymer
Abstract: Synthesis, characterization and its drug delivery application of Poly (acid fuchsin) (PAF) was done under inert atmosphere. The (M0/I0) was maintained at 100. In order to increase the molecular weight and processability, it was block copolymerized with ε-caprolactone (CL) and tetrahydrofuran (THF) separately. The conductivity value of PAF was found to be decreased after the chemical conjugation with poly(ε-caprolctone) (PCL) and poly(tetrahydrofuran) (PTHF) blocks. Thus obtained triblock copolymer was subjected …
Published in Journal of Catalyst & Catalysis · Vol. 3, Issue 2, 2016 · pp. 33–43 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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Crosslinked Starch Polymer for Coating on Fruit/Vegetable for Preservation Derived from Waste De-Oiled Soybean Cake
Abstract: Cross-linked starch films have been prepared by reacting starch extracted from de-oiled soybean cake (waste material from oil industry) with bio-based acids citric acid and tartaric acid. The obtained films were characterized by spectroscopic, thermal and surface morphological techniques. Thermal analysis showed that thin film has good thermal stability. The micrographs obtained from scanning electron microscopy showed the film surface has smooth and uniform morphology. Biological properties like cytocompatibility, antimicrobial …
Published in Journal of Catalyst & Catalysis · Vol. 8, Issue 2, 2021 · pp. 17–29 Read article
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Direct and rapid synthesis of amides from carboxylic acids under solvent free condition using Clay based Heterogeneous recyclable catalyst
Abstract: Direct condensation of Carboxylic Acids and Amines has resulted in a highly simple and practical technique for the synthesis of amides. Fe-Al clay catalyst was used in the solvent-free, microwave-irradiated amide synthesis. Only a small amount of the catalyst was needed to produce products in very short of time with a good yield. The catalyst was easy to separate and could be recycled several times with negligible loss of catalytic …
Published in Journal of Catalyst & Catalysis · Vol. 10, Issue 2, 2023 · pp. 1–9 Read article
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Eco-friendly Corrosion Inhibitors for N80 Steel in Hydrochloric Acid
Abstract: An important method of protecting metallic materials against deterioration due to acid corrosion is by the use of corrosion inhibitors. In the present investigation, corrosion inhibition study of two compounds,1-(2-hydroxyethyl)-2-ethylimidazoline(Inh I) and 1-(2-hydroxyethyl)-2-decylimidazoline (Inh II) have been performed for oil-well tubular steel (N80) in 15% HCl using weight loss, electrochemical polarization, AC impedance and SEM. The inhibition efficiencies of the inhibitors follow the sequence, Inh II > Inh I. The …
Published in Journal of Materials & Metallurgical Engineering · Vol. 2, Issue 1-3, 2012 · pp. 71–83 Read article
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Molebdate as Corrosion Inhibitor for Aluminium 356 In Acidic and Saline Media
Abstract: Corrosion processes are the cause of significant losses in industry. Organic, inorganic, and mixed material inhibitors have all been used to resist corrosion for a long time, but the environmental toxicity of organic corrosion inhibitors has driven a quest for inorganic corrosion inhibitors. The effect of molybdate as a new corrosion inhibitor on the corrosion of aluminium 356 in acidic and saline conditions was investigated using electrochemical and weight loss …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 9, Issue 1, 2022 · pp. 39–47 Read article
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Optimization Study by Response Surface Methodology and Artificial Neural Network on the Culture Parameters of Citric Acid Bioproduction from Sweet Potato Peels
Abstract: In the cause of this research work, two steps enzymatic hydrolysis of sweet potato peel was carried out respectively. The effect of α-amylase dose, reaction time, and reaction temperature and biomass weight on glucose concentration was investigated carefully. The response surface methodology (REM) predicted the highest reducing sugar concentration at liquefaction to be 74 g/L, at the following optimized conditions; temperature of 45°C, α-amylase dose 0.7 %v/v, biomass weight 22.345 …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 9, Issue 1, 2022 · pp. 30–38 Read article
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Effect of Temperature on Inhibitory Efficacy of Tamarindus indica fruit extract on acid corrosion of Aluminium
Abstract: An attempt has been made to investigate the anti-corrosive propensity of ethanolic extract of Tamarindus indica fruit at elevated temperature between 303 to 343 K, so as to replace the exploitation of toxic chemicals as corrosion inhibitors. Inhibition efficiency has been observed significantly high (84.06%) at room temperature at concentration 0.45 %. The inhibition efficiency is found to increase with increasing concentration of extract and decrease with rise in temperature. …
Published in Recent Trends in Fluid Mechanics · Vol. 10, Issue 3, 2023 · pp. 42–50 Read article
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Tranexamic Acid Mouth Rinser as a Drug of Choice among Haemostatic Agent after Tooth Extraction in Patients who are on Anti-Coagulant and Anti Platelet Medical Therapy
Abstract: Oral surgery procedure became difficult to manage in patients, who are on anti-platelet and anti-coagulant medication. Risk of thromboembolism should be balance by surgeon via reducing or stopping anti platelet and anticoagulant therapy in such patients, because there are more risk of excessive post extraction bleeding if anticoagulation or anti platelet medications are prescribed at therapeutic dose during surgical procedure. Fibrin formation mechanism become impaired in such patients, as a …
Published in Research and Reviews: A Journal of Dentistry · Vol. 12, Issue 2, 2021 · pp. 33–44 Read article
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Gamma- and Electron Beam-Induced Crystalline modification in Poly (Lactic Acid): Effects of Radiation Dose and Dose Rate
Abstract: Poly(lactic acid) (PLA) is an important commercial biodegradable polyester whose properties are dictated by its molecular architecture and semicrystalline nature. The application of ionizing radiation particularly gamma rays and electron beams is extensive for sterilization and materials processing. The effect of ionizing radiation on the crystallinity of PLA is complex however, since irradiation causes concurrently chain scission, radical formation, oxidation, recombination and mobility driven structural reorganization. This work studies the …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 Read article
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PSSM Amino-Acid Composition Based Gene Identification Using Support Vector Machines
Abstract: AbstractThe main characteristic of identifying the molecular mechanism of the cell is to understand the significance or function of each protein encoded in the genome. For that purpose, genome annotation proves to be very supportive. One of the most obligatory phases of genome annotation is the prediction of the genes. Several methods or techniques have been developed in order to locate or predict the patterns of genes in genome sequence. …
Published in Journal of Artificial Intelligence Research & Advances · Vol. 6, Issue 1, 2019 · pp. 50–58 Read article
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Removal of 2,4-diclorofenoxyacetic Acid (2, 4–D) with Carbonized Peanut Shell
Abstract: Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 Removal of 2,4-diclorofenoxyacetic acid (2, 4–D) has been studied using carbonized peanut shell (CPS). The effects of experimental parameters such as the initial pesticide concentration, contact time and temperature were evaluated. The concentrations of solutions of 2,4-D used were 0.4 and 0.6 mg/L and the temperatures were 25, 35, 45 and 55 °C. Some adsorption isotherms such as the Langmuir and …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 3, Issue 1, 2012 · pp. 28–34 Read article
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3D QSAR Studies of 2,3-Disubstituted Quinazolin Phenyl Acetic Acid Derivatives as Antimicrobial Agents
Abstract: Quantitative structure activity relationship (QSAR) studies have been performed on series of31 compounds of 2,3-disubstituted quinazolin phenyl acetic acid derivatives withantimicrobial activity using Chemoffice version 8.0 software. The QSAR models have beendeveloped by using multiple linear regressions in order to identify descriptors, which areactually focusing towards the biological activity. Leave one out (LOO) method was employedin cross validation analysis to validate the developed model. The best predictive QSAR modelderived, had …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 8, Issue 2, 2017 · pp. 4–7 Read article
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“Optimization of Physiological Parameters for Production of PUFA using Biodiesel Derived Crude Glycerol as Carbon Sourceâ€
Abstract: Global interest on biodiesel as an alternative fuel has increased over the years, leading to production of large crude glycerol glut, which is impure and has low economic value. Its microbial conversion to value added products like organic acids, alcohol and fatty acid such as polyunsaturated fatty acids (PUFA) can add to the market value to this crude glycerol. The present work reports on the optimization studies on physiological parameters …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 6, Issue 2, 2016 · pp. 1–5 Read article
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Isolation and Characterization of Lantibiotic Producing Lactic Acid Bacteria from Ambali, Aged Mango Pickle Probiotics
Abstract: Each year in the US at least 2 million people are sickened with antibiotic resistant infection. The development of antibiotics was one of the most important advances of medicine. Many bacterial infections (e.g. tuberculosis and infected wounds) that previously had no effective treatment and often killed people became treatable with antibiotics, saving millions of lives. Now, because of the overuse and misuse of antibiotics, bacterial infections that were once easily …
Published in Research & Reviews: A Journal of Bioinformatics · Vol. 3, Issue 3, 2016 · pp. 30–36 Read article
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Ferrocenium Ion Encapsulated Montmorillonite Clay as a Voltammetric Sensor for Distinguishing Amino Acids Glycine and Alanine
Abstract: Detection and determination of small bio-molecules and metal ions are of great importance for diagnosis of a number of diseases and understanding environmental pollution leading to extensive research on development of sensors. Among different sensors, electrochemical sensors are unique because of simplicity, low cost, easy maintenance and easy in vivo applications. Voltammetric sensor, one of the major constituents of electrochemical sensors, is essentially a surface modified working electrode (WE). The …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 9, Issue 1, 2018 · pp. 8–11 Read article
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Synthesis and Characterization of Biodiesel from Waste Cooking Oils by Acid and Base Catalysis
Abstract: In this study, biodiesel was synthesized by the transesterification reaction involving methanol and triglyceride obtained from waster cooking oil (WCO) in a laboratory scale reactor. Different concentrations of catalysts such as sulfuric acid (H2SO4) and potassium hydroxide (KOH) were employed in the reactions. The feedstock samples were gathered from neighbourhood eateries in Ghana's Cape Coast metropolis. Investigations were done into how variables including temperature, reaction time, methanol/WCO ratio, and catalyst …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 14, Issue 2, 2023 · pp. 24–32 Read article
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Effect of Different Preservatives on Vase Life of Tuberose
Abstract: An experiment was conducted at the Laboratory of the Department of Horticulture, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Salna, Gazipur, Bangladesh during September 2015 to August 2016 to find out suitable preservative(s) of vase solution that increases vase life of tuberose (CV. Single). Nine treatments viz., T1= 1% sucrose +300 ppm Hydroxy Quinolene Sulphate (HQS), T2= 2% sucrose +300 ppm HQS, T3= 3% sucrose +300 ppm HQS, T4 =4% …
Published in Research and Reviews : Journal of Crop science and Technology · Vol. 7, Issue 3, 2018 · pp. 10–15 Read article