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524 articles for “crystallization”
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A Strategy of Nano-Calcite Fillers for Enhancing the Mechanical and Thermal Properties of Polypropylene Polymers
Abstract: Particulate polymer composites have gained popularity because of their many uses. For some, using high loadings to achieve desired attributes without compromising the material's mechanical properties or restricting its processability is desirable. It is possible to use surface active agents to improve characteristics and increase solid loading. Interface characteristics in highly packed particulate composites based on nano-calcite (nano-calcium carbonate) and polypropylene as a binder are the focus of the current …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 16, Issue 1, 2025 · pp. 20–29 Read article
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Guanidine as a Starting Material for Preparing a Scale Inhibitor
Abstract: Oilfield scale inhibition, which can obstruct fluid flow in pipelines, valves, and pumps during oil production and processing, is critical for preventing scale formation. Effective scale inhibitors (SIs) minimize downtime and enhance productivity by preventing the build-up of insoluble crystals in water systems. In oil processing, scale formation results from the precipitation of salts due to incompatible aqueous phases, leading to equipment blockage. Phosphonates are highly effective chelating agents for …
Published in Journal of Petroleum Engineering & Technology · Vol. 16, Issue 1, 2026 · pp. 15–28 Read article
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High-Performance Polymer Composite Membranes for Selective Ion Transport in Advanced Energy Conversion Systems
Abstract: The development of high-performance Polymer Composite Membranes (PCM) with enhanced ion transport is essential for Polymer Electrolyte Membrane Fuel Cells (PEMFC). However, low-humidity conditions and filter agglomeration still limit long-term membrane stability. This research designs a functionalized PCM integrating cross-linked Poly (Vinyl Alcohol)/Poly (Ethylene Glycol) (PVA/PEG) matrix with sulfonic acid functional groups and Titanium Dioxide (TiO₂) nanofillers to improve selective ion transport under low-humidity conditions. Two types of PCM were …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 724–736 Read article
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Fabrication and Properties of Recycled PET Reinforced Waste Cellulosic Fiber Composites
Abstract: The economic utilization of lignocellulose waste, which is now being explored, is one of the environmental problems confronting third-world nations. Waste cellulosic fiber (paper sludge, PS) composites will enable the cost of the composite to be reduced while allowing for the efficient use of a waste material that is presently burned or buried. Environmentally friendly composites made from PSreinforced recycled poly(ethylene terephthalate) (rPET) matrix with the addition of SEBS-g-MA as …
Published in Emerging Trends in Chemical Engineering · Vol. 10, Issue 1, 2023 · pp. 9–20 Read article
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CuO/TiO2 Nanocomposites: Effect of Calcination on Photocatalytic Hydrogen Production
Abstract: Hydrothermally synthesized TiO2 nanorods were subjected to calcination from 350 to 550 °C and tested their catalytic performance for hydrogen (H2) production in aqueous glycerol solution under solar irradiation. High rate of H2 evolution ca.300 µmol.h−1.g−1cat was recorded with TiO2 nanorods calcined at 500 °C. The nanocomposites were prepared by varying Cu-loading 0.1 to 2.0 wt% and activated at 350 or 500 °C. About 25 folds enhancement in H2 production …
Published in Journal of Catalyst & Catalysis · Vol. 1, Issue 2, 2014 · pp. 13–20 Read article
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Optical, Thermal Properties of Cadmium Chloride Reinforced PVA:PVP Blend Films
Abstract: In this study, pure polymer blend film (PVA:PVP) and salt (CdCl2.H2O) reinforced polymer blend films were prepared at different weight ratios (10, 20, 30) wt% using the casting method. The optical and thermal properties of all polymer blend films were studied.The transmittance and absorbance spectra were recorded within the wavelength range (190-1100) nm. The effect of salt weight ratio on the energy gap of salt (CdCl2.H2O) reinforced polymer blend films …
Published in Journal of Polymer & Composites · Vol. 8, Issue 1, 2020 · pp. 46–52 Read article
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Effect of Annealling on Optical Band Gap of Fe2O3 Thin Films on Amorphos Transparent Glass Substrate by Spray Pyrolysis Method
Abstract: The Fe 2 O 3 thin film has widely used photo-electrochemical cells. In this paper, the optical properties like band gap of thin films is depend on annealed temperature at 100 o C and 200 o C was discussed. The optical property of Fe 2 O 3 are studied by UV- Vis spectroscopy .The optical band gap decreased after increasing annealing temperature. The refractive index of Fe 2 O 3 …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 10, Issue 2, 2023 · pp. 25–29 Read article
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The Efficiency of Solar Panel: Case Study of Cross River State University of Technology, Nigeria
Abstract: We use two solar panels; mono-crystalline and poly-crystalline solar panel, to determine how ambient temperature affects the efficiency of photovoltaic solar panels in Cross River State University of Technology within Calabar south metropolis. This shows that the efficiency of the solar planes actually decreases with increase in temperature and which also depends on the time interval. Keywords: Mono-crystalline solar panel, polycrystalline solar panel, ambient temperature
Published in Journal of VLSI Design Tools and Technology · Vol. 9, Issue 2, 2019 · pp. 23–27 Read article
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Characterization of a Broadly Specific LPS-Neutralizing Single Domain Antibody
Abstract: Gram negative endotoxaemia or sepsis remains a lethal challenge to humans and animals, globally. Single domain antibodies (dAbs) have emerged as therapeutic biologics for challenging antigens such as lipopolysachharide (LPS). The present study characterized a broadly specific LPS-neutralising dAb produced from phage display library from LPS-immunized Indian desert camel, for its sequence validation with mass spectrometry. Also, the dAb clone 26 was subjected to co-crystallisation with LPS, extracted from E. …
Published in Research and Reviews : A Journal of Immunology · Vol. 7, Issue 1, 2017 · pp. 1–7 Read article
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Multifunctional Corn Husk Fibre/PLA–PBAT Hybrid Composites with Carbon-Black Percolation for Structural Self-Sensing Applications
Abstract: This study developed multifunctional polymer composites based on a PLA/PBAT (Polylactic Acid/ Poly(butylene adipate-co-terephthalate)) thermoplastic matrix reinforced with 20 wt.% corn husk fibre (CHF) and functionalized with conductive carbon black (CB) for smart consumer-electronics casings. Alkali treatment modified the lignocellulosic fibre surface, improving fibre–matrix interfacial adhesion and stress transfer within the polymer composite. Thermal characterization showed that the PLA cold-crystallization temperature decreased from 112.5 °C for the unfilled blend to …
Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 Read article
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Effect of Disorder in Nanocrystalline La0.5Pr0.2Ca1–xBaxMnO3 Manganites
Abstract: Nanocrystalline samples of La0.5Pr0.2Ca0.3–xBaxMnO3 (LPCBMO) (x = 0.05, 0.10, 0.15, 0.20, 0.25 and 0.30) manganites were successfully synthesized by employing prolonged grinding process in conventional solid-state reaction route. The obtained value of crystallite size (CS) varies from 76 nm in lower doped sample (x = 0.05) to 13 nm in the sample doped with Ba2+ (x) = 0.05. The variation in CS with x has been discussed in the context …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 16, Issue 1, 2014 Read article
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Modification of Structural and Electrical Properties of GDC with Sb3+ Ions
Abstract: Gadolinium doped cerium (GDC) is a potential candidate as electrolyte in the solid oxide fuel cells operating in intermediate temperatures. The optimum performance of GDC is obtained only when sintered at higher temperatures (~1400°C), where cerium is prone to reduction. Improvement in the conductivity and stability of GDC is expected by doping it with trivalent ions. In the present context, successful attempts have been made to synthesize Ce0.8Gd0.1Sb0.1O2-δ by solid …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 18, Issue 3, 2016 · pp. 27–35 Read article
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Effect of the Annealing Temperature on CdS Nanoparticles Synthesized by Chemical Precipitation Technique and also Characterized for its Potential Technological Applications
Abstract: Cadmium Sulfide (CdS) nano particles are synthesized by chemical precipitation method. Cadmium Chloride and Thiourea are used as the precursor materials. Ammonia water & distilled water are used as solvent. The samples are annealed at 100°C, 300°C and 500°C for 1 hour. Transmission electron microscopy (TEM), Energy–dispersive X-ray spectroscopy (EDAX), and X-ray diffraction pattern (XRD) are used to study the morphologies, distribution, and crystallinity of the CdS nanoparticles and to …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 23, Issue 3, 2021 · pp. 20–28 Read article
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Molecular Methods to Improve the Insecticidal Action of Bacillus thuringiensis in Biotechnology Arena
Abstract: Bacillus thuringiensis (or Bt) is a Gram-positive, soil-dwelling bacterium, frequently used as an organic pesticide. B. thuringiensis also arises naturally in the gut of caterpillars of several kinds of moths and butterflies, as well on foliage surfaces, marine environments, animal feces, insect-rich surroundings, and flour mills and grain-storage facilities. All through sporulation, various Bt strains harvest crystal proteins (proteinaceous inclusions), termed δ-endotoxins, that have insecticidal action. This has led to …
Published in Research & Reviews: A Journal of Bioinformatics · Vol. 4, Issue 1, 2017 · pp. 31–35 Read article
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Structural Properties of Spin Coated Multilayered Cupric Oxide Thin Films
Abstract: AbstractCuO thin films were spin-coated at 1500, 2200 and 2400 rpm for 30 sec, and subsequently annealed at 150–550°C for 1 h. Multi-layered CuO thin films were prepared including three and five layers. These thin films were characterized using XRD, Fourier-Transform Infrared Spectroscopy (FTIR) and polarizing light microscopy. The XRD and FTIR analysis confirmed the crystallization of CuO phase in thin films annealed above 350°C, and corresponding crystallite sizes were …
Published in Research & Reviews : Journal of Physics · Vol. 4, Issue 2, 2015 · pp. 8–13 Read article
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Spectroscopic, Thermal and Morphological Properties of Pa6 Copolymers
Abstract: Spectroscopic, thermal and morphological properties of PA6/PA12 copolymers have been reported in the present study. FTIR studies indicate the chemical interaction occurring between PA6 and PA12 homopolymers. Thermal properties of copolymers have been investigated by DTA technique. Among the PA6 copolymer, hydrolyzed PA6 has more Tg and Tm then the copolymer. Thermal degradation of copolymer is studied by TGA and DTG technique. The studies suggest that hydrolyzed PA6 has more …
Published in Research & Reviews : Journal of Physics · Vol. 7, Issue 3, 2018 · pp. 56–62 Read article
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Advanced Quantitative Analysis of Dynamic Recovery during Warm Working of FCC Alloys
Abstract: Metal working processes of warm working require an advanced quantitative analysis of dynamic and static recovery of dislocations to control microstructures and crucial shape forming properties. Feasibility of dynamic recovery by thermal glide and static recovery by climb of constricted jogs, applicable to ausforming, nano bulk forming by SPD and normalizing has been addressed to design new steels, used for hulls, and tribologically superior bearings. Predictive dislocation recovery analysis shows …
Published in Journal of Materials & Metallurgical Engineering · Vol. 12, Issue 4, 2022 · pp. 1–14 Read article
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Extraction, Isolation, Characterization of Curcumin-I From Curcuminoids
Abstract: The major goal of this study is to extract, isolate, and characterize curcumin-I, a component of curcuminoids. Turmeric, or Curcuma longa Linn., plays a significant role in Ayurvedic medicine. Turmeric, or Curcuma longa Linn, is the popular name for this plant. An array of chemicals with biological activity may be more easily extracted with the help of this seasoning. Some of the compounds at play include curcuminoids and turmerone, although …
Published in Journal of Polymer & Composites · Vol. 10, Issue 4, 2022 Read article
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AQUASOMES: A Vesicular, Self-assembled Ceramic Nanoparticulate Drug Carrier
Abstract: Nano-biopharmaceutics involves delivery of biopharmaceutical product through different biomaterials like multi-functional nanoparticles, quantum dots, aquasomes, super-paramagnetic iron oxide crystals, and liposomes dendrimers. Aquasomes are considered as one of the most recently developed delivery systems for bioactive molecules like peptides, proteins, hormones, antigens and genes to specific sites. Aquasomes have a spherical shape and a particle size of 60–300 nm. These are three layered self-assembled nano-particulate carrier system. This three-layered structure …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 12, Issue 3, 2025 · pp. 1–14 Read article
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Preparation and Characterization of TiO2 Nanoparticles by Green Method
Abstract: In this study, we attempted to synthesize TiO2 nanoparticles utilizing titanium tetrachloride as a precursor and an aqueous extract of Sansevieria plant leaves. Atomic force microscopy (AFM), X-ray diffraction (XRD) pattern, scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, and Brunauer-Emmett-Teller (BET) analysis were used to identify the synthesized TiO2 nanoparticles As per the surface topography, the average diameter of nanoparticles is considered as 67.73 nm. Debye-Scherrer equation was …
Published in Journal of Polymer & Composites · Vol. 11, Issue 2, 2023 · pp. 61–67 Read article