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136 articles for “Crystal”
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Nanostructured Hydroxyapatite: A Biomimetic Revolution in Enamel Regeneration and Remineralization
Abstract: Background Dental caries and erosive enamel wear remain among the most common chronic conditions worldwide, affecting more than 2 billion people and contributing to pain, tooth loss, and substantial economic costs. Conventional fluoridebased strategies reduce demineralization but do not fully restore enamel microstructure. Source and selection of data We searched MEDLINE, Embase, Scopus, and Cochrane Library for in vitro, in situ, and clinical studies on nanohydroxyapatite (nHAp) used for enamel …
Published in International Journal of Composite and Constituent Materials · Vol. 12, Issue 1, 2026 · pp. 1–11 Read article
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Synthesis of mixed metal oxides CuO-SnO, composite nano material for the study ofefficiency of textile fabrics as UV-absorbers
Abstract: In the present study we report the synthesis and characterization of nanosized copper oxide,tin oxide and composite of copper and tin oxide and their application on cotton fabrics forUV shielding. The CuO-SnO nanocomposite material prepared under different temperature90 0 - 150 °C by using water and 1,2-ethanediol as a solvent. Copper oxide, tin oxide andcomposite of copper and tin oxide nanoparticles were then applied to cotton sample to impartsunscreen activity …
Published in International Journal of Composite and Constituent Materials · Vol. 11, Issue 2, 2025 · pp. 1–5 Read article
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Green Synthesis of Silver Nanoparticles from Trapa bispinosa Fruit Extract: Characterization and Promising Antimicrobial Activity Against Multidrug-Resistant Pathogens
Abstract: Silver nanoparticles (Ag NPs) are widely recognized for their applications in medicine, electronics, and environmental remediation. This study presents a new green synthesis method for Ag NPs using Trapa bispinosa fruit extract as a natural reducing agent and stabilizing agent. Characterization of the synthesized Ag NPs through X-ray diffraction (XRD) confirmed a crystalline structure consistent with the face-centered cubic (fcc) arrangement, with peaks at (111), (200), (220), (311), and (222), …
Published in International Journal of Applied Nanotechnology · Vol. 11, Issue 1, 2025 · pp. 38–46 Read article
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Utilization and Mitigation of Ventilation Air Methane in Coal Mining: A Focus on Turkey
Abstract: Ventilation Air Methane (VAM), a byproduct of underground coal mining, is a significant source of methane emissions and a potential energy resource. VAM is typically released at low concentrations, ranging from 0.1% to 1.5%, making it challenging to capture and utilize effectively. This article explores methane enrichment technologies, focusing on the weak eddy and free diffusion methods to increase VAM concentrations. These techniques have shown promise in enhancing methane capture …
Published in International Journal of Chemical Separation Technology · Vol. 11, Issue 1, 2025 Read article
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Green approach for the synthesis of Titanium dioxide nano particles and their characterization
Abstract: The ecofriendly and sustainable method of green synthesis of nanoparticles gained a lot of popularity these days. Azadirachta indica (neem) leaves are used in this study to identify the eco friendly synthesis of titanium dioxide nanoparticles (TiO 2 NPs). TiO 2 NPs can be easily and sustainably synthesized from titanium precursors using neem leaves having bioactive compounds. Green production of TiO 2 NPs is facilitated by the stabilizing and capping …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 11, Issue 1, 2026 · pp. 50–58 Read article
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Kinetic Modifications in Polymers under Cryogenic Stress: A Thermochemical Study
Abstract: This study explores the kinetic modifications in polymers subjected to cryogenic stress, focusing on the thermochemical behavior and structural changes that occur at low temperatures. Polymers, when exposed to cryogenic conditions, exhibit distinct molecular rearrangements, influencing their mechanical properties and thermal stability. The investigation involves characterizing these polymers using advanced spectroscopic and thermal analysis techniques to identify alterations in crystallinity, molecular weight distribution, and glass transition temperature. By examining the …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 10, Issue 2, 2024 Read article
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Three Dimensional (3D) Structure and Morphology ofCarbon Fibers from X-Ray Microscopy (XRM) Analysis†
Abstract: X-ray microscopy is an elegant chemical imaging technique that bridges the gap between lightmicroscopy and electron microscopy. Vital information on the chemical state (valency, surfacefunctionality), chemical composition, three-dimensional (3D) chemical structure (order, disorder,rupture), and chemical imaging can be obtained from X-ray microscopy. In the current originalresearch article, X-ray microscopy is used as a characterization tool to examine the microstructuralfeatures of commercial carbon fibers. Pitch-based (NX100) and polyacrylonitrile (PAN)-based(T700SC) CFs chosen …
Published in International Journal of Composite Materials and Matrices · Vol. 10, Issue 2, 2024 · pp. 23–32 Read article
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Design and Analysis of Metal-Organic Frameworks for Gas Adsorption and Storage
Abstract: Metal-Organic Frameworks (MOFs) represent a class of highly porous materials formed by the coordination of metal ions with organic linkers, exhibiting exceptional potential for gas storage applications due to their high surface area, tunable pore sizes, and structural versatility. The synthesis and characterization of MOFs intended for the effective storage of gases like carbon dioxide, methane, and hydrogen are the main topics of this work. Solvothermal Hectic strategies, including solvothermal, …
Published in International Journal of Metallurgy and Alloys · Vol. 10, Issue 1, 2024 · pp. 25–30 Read article
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Synthesis of Fe2(MoO4)3/MoO3 Nanocatalysts by Solution Combustion Approach and Their Catalytic Performance for the Selective Oxidation of Methanol
Abstract: The Fe 2 (MoO 4 ) 3 /MoO 3 nanocatalysts comprising Fe 2 (MoO 4 ) 3 nanoparticles supported on MoO 3 nanorods were synthesized via two-step solution combustion approach and their catalytic performance for the selective oxidation of methanol were evaluated. The materials have been characterised using electron microscopy, powder X-ray diffraction and Raman spectroscopy. First, MoO 3 nanoparticles were prepared by solution combustion reaction employing ammonium nitrate as …
Published in International Journal of Applied Nanotechnology · Vol. 10, Issue 1, 2024 · pp. 37–47 Read article
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Study on Compressive Strength of Concrete by Partial Replacement of Cement with Metakaolin
Abstract: Concrete is that the most typically used material for construction. The worldwide production of cement has greatly inflated since 1990. Production of cement leads to heaps of environmental pollution because it involves the emission of CO2 gas. Supplementary building material materials (SCM) area unit finely ground solid materials that area unit accustomed replace a little of the cement in a very concrete mixture. These supplementary materials could also be present, …
Published in International Journal of Architectural Heritage · Vol. 2, Issue 1, 2019 · pp. 26–36 Read article
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Cryopreservation
Abstract: Cryopreservation depends on the capacity of certain molecules to enter cells and avert drying out and arrangement of intracellular crystals, which can bring about cell death and annihilation of cell organelles amid the solidifying procedure. Two basic cryoprotective operators are dimethyl sulfoxide (DMSO) and glycerol. Glycerol is utilized fundamentally for cryoprotection of red platelets, and DMSO is utilized for assurance of most different cells and tissues. A sugar called trehalose, …
Published in International Journal of Animal Biotechnology and Applications · Vol. 2, Issue 1, 2016 Read article
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Rearing of the Mussels (freshwater bivalves) for Commercial Pearl.
Abstract: The concretion consisted of the material of molluscan shell and highly valued gemstone is the pearl. The pearl is perfectly round, hard and glistening objects synthesized by the mantle of the oyster, the molluscan animal. In a minute and crystalline form, the calcium carbonate has deposited by soft tissue of mantle in the concentric layers. Pearl mussel, Margaritifera margaritifera (L) is one of fresh water molluscan animals used for the …
Published in International Journal of Animal Biotechnology and Applications · Vol. 8, Issue 2, 2022 · pp. 13–20 Read article
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Agronomy of Rice Husks
Abstract: Rice husk and hull is the waste material of rice mill. These have been hard, fibrous and abraded capabilities. Bio active and biodegradable rice husk/hull have been studied to claim remaining form by firing at scaled opts of amorphous and crystal forms of silica. Metallic constitutive like iron, manganese, sodium, potassium, lead, copper have suggestive towards route to subscribe purest form after firing. Preparations out of raw forms have subjectively …
Published in International Journal of Agrochemistry · Vol. 6, Issue 1, 2020 · pp. 52–57 Read article
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Synthesis and characterization of high saline water resistant sulphur composite from petrochemical waste
Abstract: Petrochemical industry produces variety of side products and waste materials like sulphur, spent catalysts, spent adsorbents, etc. These waste materials can be converted to the value-added products by forming their composites with unique properties. For example, sulphur due to its chemical properties like high resistivity to corrosive environment, hydrophobic nature, antifungal property, its composite can be prepared and used in construction industries as a substitute for cement composite material. To …
Published in International Journal of Green Chemistry · Vol. 6, Issue 2, 2020 · pp. 64–77 Read article
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Computational modeling and experimental investigation of using vibration to mixing and separation of a gas bubbles and a liquid in reduced and microgravity conditions
Abstract: The main purpose of the present research is the computational modeling of the gas bubbles behavior in the vibrating fluid under reduced and microgravity conditions. The manuscript presents the results of work of the developed computer model of the gas bubbles behavior in the vibrating fluid under reduced and microgravity conditions, and the experimental investigation of using vibration to mixing and separation of a gas bubbles and a liquid in …
Published in International Journal of Analytical and Applied Chemistry · Vol. 4, Issue 1, 2018 · pp. 1–7 Read article
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Fresh water production from sea water using DC current influence on sea water powered by solar energy
Abstract: Today, the existing methods for fresh water production from sea water are: distillation or thermal distillation, reverse osmosis, electrodialysis, extraction and crystallization. The main disadvantages of these methods are: the complexity of the designs of desalinators and the used equipment, the economic unprofitability of their use due to high energy costs, the use of expensive and wear-resistant materials. The article presents a developed method of seawater desalination and a specially …
Published in International Journal of Analytical and Applied Chemistry · Vol. 9, Issue 1, 2023 · pp. 30–48 Read article
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A Review Status on Application of Separation Techniques in Daily Life
Abstract: In chemistry and related fields, a unit operation is the basic step in a process. Unit operations involve a physical change or chemical transformation such as separation, crystallization, evaporation, filtration, polymerization, isomerization, and other reactions. Researchers have developed economic ways of using materials and energy. Chemical engineers use chemistry and engineering to turn raw materials into usable products, such as medicine, petrochemicals and plastics on a large-scale industrial setting. They …
Published in International Journal of Chemical Separation Technology · Vol. 3, Issue 2, 2017 · pp. 30–35 Read article
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Potato Starch-Based Polyethylene Composite: Fabrication and Evaluation
Abstract: This study's objective was to create and evaluate a biodegradable polymer composite consisting of potato starch (PS) and low-density polyethylene (LDPE). The effects of changing the PS content (10– 40 wt%) on the mechanical (elongation at break and tensile modulus), thermal (heat conductivity), and biodegradability characteristics of the polymer composite were examined. Next, it was examined how the cross-linking agent influenced the polymer composite's mechanical and thermal properties. The melt …
Published in International Journal of Chemical Separation Technology · Vol. 8, Issue 2, 2022 · pp. 32–44 Read article
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Studies on Preparation of Tiles from Slag
Abstract: This article is the study of issued forms for advanced ceramics manufacture from proportioned waste slag from iron and steel manufacture. Huge slag disposal has linked waste landfill originated pollution and loss of flora and fauna in the area, henceforth subjected reuse/recycle slag for useful purposes. Tile/shaped piece is made of glass-ceramics, in which slag (partly amorphous) is added in proportion to reduce a huge load of usual raw material …
Published in International Journal of Chemical Engineering and Processing · Vol. 7, Issue 1, 2021 · pp. 25–35 Read article
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IMAGING OF A FAR SURFACE OBJECT WITH HORIZONTAL LOOP ELECTROMAGNETIC INSTRUMENT
Abstract: An electromagnetic imaging instrument with variable voltage and frequency was designed and constructed to image a far surface metallic object. The methodology involved the transmitted voltage of 250V to the transmitter core with frequency of 300Hz. The liquid crystal display (LCD) module was used to display the computed voltage values after being processed by the microcontroller unit. The constructed instrument took measurement at horizontal profiling to 30m along the surface …
Published in International Journal of Environmental Chemistry · Vol. 5, Issue 1, 2019 · pp. 4–9 Read article