451 Result(s)
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Article
Heat transfer and fluid flow characteristics over a backward-facing step (BFS) containing square-rectangular ribs integrated as forward-facing steps (FFS)
Modifying the geometrical structures is a potential strategy that targets the compactness of any new devices in order to produce greater cooling performance. The heat transfer enhancement over a BFS with uniqu...
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Efficient Green Enzymatic Synthesis of Lipophilic Piperic Acid Esters By Immobilized Rhizopus oryzae Lipase: Optimization and Antioxidant Activities
Driven by the increasing demand for novel lipophilic antioxidants for emulsions and oil-based formulas, a non-commercial immobilized Rhizopus oryzae lipase's capacity to catalyze butanol, octanol, and dodecanol e...
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Article
Enhanced Reactivity and Stability of Natural Hematite Supported Cobalt for the Catalytic Oxidation of Congo Red Dye
Natural hematite supported cobalt (Co/Nat-Hem), a new heterogeneous catalyst, was successfully prepared by a simple impregnation technique. Textural, structural, functional groups and morphological aspects of ...
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Synthesize of exfoliated poly-methylmethacrylate/organomontmorillonite nanocomposites by in situ polymerization: structural study, thermal properties and application for removal of azo dye pollutant
This paper reports the synthesis of exfoliated structure of Poly-methylmethacrylate/organomontmorillonite nanocomposites by in situ polymerization of Methylmethacrylate monomer as a cost-effective adsorbent fo...
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Open AccessResponse surface methodology for low-energy consumption electro-Fenton process for xanthene dye electrochemical degradation
Erythrosine B (EB) is a dye widely used in the food and textile industries. Despite many studies that have been proposed in the literature about the electrochemical oxidation of dyes, few studies considered su...
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Article
Three isoelectronic families of X \(_4\) Y \(_4\) cubic systems
We performed several types of ab initio calculations, from Hartree-Fock to Complete-Active-Space second-order perturbation theory and Coupled Cluster, on compact clusters of stoichiometry X
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Differential thermal measurements of phase transitions at high pressures and temperatures
Thermal measurements of high-pressure transitions in metals can provide thermodynamic insight into the properties of the high-pressure high-temperature phases and their transitions. However, these measurements...
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Article
Open AccessThe controlled microfluidic formation of stable mixed phase HCP/FCC-UiO-67(Zr)-benzoic acid through modification of water concentration
This work reports the synthesis of a mixed crystal phase mesoporous metal–organic framework (MOF) through a new synthesis route. The Hexagonal Centred Planar/Face Centred Cubic mixed phase UiO-67(Zr) product w...
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Pure and Stone-Wales Defect Armchair Boron Nitride Graphene Nanoribbons as Anticancer Drug Delivery Vehicles: A Theoretical Investigation
This study’s methodology employs the pristine Armchair Boron Nitride Nanoribbons (ABNNR) and Armchair Boron Nitride Nanoribbons Stone–Wales (ABNNR-SW) defects as carriers for the fluorouracil (FU), Nitrosourea...
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Article
X-Ray Crystallography, Molecular Interactions, DFT Study, and Molecular Docking Investigation of a Novel Noncentrosymmetric Cu(II) Complex of 2,6-Dimethylpyrimidin-4-(1 H)-One Based Ligand
A new Cu(II) complex with the monodentate ligand 2,6-dimethylpyrimidin-4-(1 H)-one, [CuCl(C6H8N2O)2H2O]Cl.3H2O, was synthesized and characterized by single crystal X-ray diffraction, elemental analysis, and IR sp...
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Article
Effect of precursors on structural, optical and surface properties of ZnO thin film prepared by spray pyrolysis method: efficient removal of Cu (II) from wastewater
In this study, ZnO thin films were prepared with different precursors using the spray pyrolysis technique, zinc acetate (ZAC-0.2), zinc chloride (ZCL-0.2), and dehydrated zinc nitrate (ZNH-0.2) precursors. The...
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Article
Computational insights on the adsorption of glycine, methionine, tyrosine and phenylalanine on the zinc oxide nanocluster Zn12O12
The current work investigated the interaction of ZnO nanoparticles (NPs) with glycine, tyrosine, methionine and phenylalanine. (ZnO)12 cage-like cluster was modeled using the density functional theory to determin...
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Article
Microbial Enzymatic Degradation, Spectral Analysis and Phytotoxicity Assessment of Congo Red Removal By Bacillus spp.
The textile industry is a leading contributor to water pollution. Therefore, there is a need for economic and environmental efforts to manage the textile industry’s wastewater. The present study used five bact...
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Article
Enhanced photocatalytic degradation of Rhodamine B by (Mg/Ta): doped Bi4Ti3O12 catalyst under sunlight irradiation
(Mg/Ta) was incorporated into Bi4Ti3O12 (BTO) crystals in this research to improve their photocatalytic activity in the degradation of organic contaminants. The (Mg/Ta)-modified BTO photocatalyst was synthesized ...
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Article
Synthesis, X-ray structure, DFT investigation, and molecular docking of 1,3,5-tricyclohexyl-1,3,5-triazinane-2,4,6-trione, a cyclic polyamide with anti HIV-1 (RT), antiplatelet, and anticoagulant activities
1,3,5-tricyclohexyl-1,3,5-triazinane-2,4,6-trione (TCy-TAZTO) was obtained with high chemoselectivity and excellent yield, through an efficient and simple cyclotrimerization of isocyanatocyclohexane, performed at...
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Article
Long-term water aging effects on the durability of alkali-treated bamboo fiber reinforced composite
This paper investigates the degradation mechanisms and mechanical properties of alkali-modified bamboo fiber composites under long-term water aging (up to 120 days) at 25 °C. The main findings show that alkali...
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Exploring the impact of vanadium on physical, structural and thermal properties of bioactive glass 46S6: a comparative study with other metallic elements
Vanadium-doped quaternary bioactive glass systems 46 SiO2, (24–x/2) Na2O, (24–x/2) CaO, 6P2O5, xV, where x = 0, 0.5, 2.5, 2.8, and 5 mass% of vanadium through the use of V2O5 oxide, were successfully synthesized ...
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Article
MLP and optimized FCM-ANFIS models proposed for inlet turbulent flow under ultrasonic vibration
In this research, two methods, the multi-layer perceptron (MLP) neural network and the adaptive neuro-fuzzy inference system (ANFIS), were employed to find the best relationship between inputs and outputs of t...
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Correction: Investigation on Crystal Structure, Spectroscopic Characterization, Thermal Analysis, Conductivity Study and Antioxidant Activity of a Novel Compound Containing Cluster Entities (C7H10N)2·(HgCl2)2·(Hg2Cl6)
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Open AccessOptical control of ultrafast structural dynamics in a fluorescent protein
The photoisomerization reaction of a fluorescent protein chromophore occurs on the ultrafast timescale. The structural dynamics that result from femtosecond optical excitation have contributions from vibration...
