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168 articles for “molecular structure”
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Machine Learning for Finding Materials for Membranes
Abstract: Traditionally, finding and improving membrane materials has depended on trial-and-error experiments, which can take a long time, cost a lot of money, and only cover a small area. Recent improvements in machine learning (ML) have the potential to change the way membrane materials are designed by making it possible to make predictions about performance, selectivity, and stability based on data. ML algorithms can find hidden links between the structure, composition, …
Published in International Journal of Membranes · Vol. 3, Issue 1, 2026 · pp. 1–7 Read article
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Investigation and Concerns on the Mechanics Behind Grain Refinement During ECAP Operation with Applications to Polymers
Abstract: Materials science and engineering have studied Equal Channel Angular Pressing (ECAP) grain refining. This abstract discusses important findings and concerns about grain refining mechanics during ECAP.A adaptable severe plastic deformation method; ECAP refines grain patterns in many metallic materials. Many researches have attempted to understand this phenomenon's complex mechanisms. Microhardness and microstructure (morphology) of AL alloy increase with the increase in pass numbers. It is observed that the mechanical property …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 1–11 Read article
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Growth, Structural and Optical characteristics of Citric Acid Doped Copper Sulphate Single Crystals Polymer Composites Photonic Applications
Abstract: The organic material Citric Acid doped Copper Sulphate single crystals (CACS) was synthesized and single crystal was grown by slow evaporation method. The incorporation of citric acid, an organic compound, introduces polymer-like functional behavior into the crystal matrix, forming an organic-inorganic hybrid composite with enhanced optical and structural characteristics. Single crystal XRD confirmed the triclinic system with unit cell parameters: a = 5.96 Å, b = 6.11 Å, c = …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 482–488 Read article
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Biochemical Changes in Chickpea (Cicer arietinum L.) Plants Induced by Flooding
Abstract: Flooding is a significant environmental stressor that affects the growth, development, and productivity of chickpea (Cicer arietinum L.), a crucial pulse crop grown worldwide, especially in India. This study investigates the biochemical changes in chickpea plants subjected to prolonged and sudden flooding. Key parameters analyzed include carbohydrate metabolism, protein content, chlorophyll levels, amylase activity, and proline accumulation. Results show that flooding significantly reduces total sugar content in leaves, stems, and …
Published in Research & Reviews : Journal of Agricultural Science and Technology · Vol. 13, Issue 3, 2024 · pp. 1–9 Read article
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White-Rot Fungi-Based Bioprocessing for Circular Bioeconomy & Valorization of Lignocellulosic Waste
Abstract: The escalating global demand for sustainable resource management and the imperative to reduce dependence on fossil-based products have positioned the circular bioeconomy as a transformative paradigm for the 21st century. Lignocellulosic biomass, generated abundantly as agricultural and forestry residues, constitutes one of the most underexploited renewable carbon sources on Earth, yet its recalcitrant structure, interlinking cellulose, hemicellulose, and lignin, has long impeded its efficient valorization. White-rot fungi (WRF), predominantly belonging …
Published in International Journal of Fungi · Vol. 3, Issue 2, 2026 Read article
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Design and Synthesis of Functionalized Copolymers for Enhanced Interfacial Compatibility in Polymer Matrix Composites
Abstract: Interfacial adhesion between the polymer matrix reinforcing phase affects significantly the mechanical and thermal behavior of polymer composites. The study reports on the design and synthesis of functionalized copolymers in the efforts to establish interfacial compatibility based on chemical design. The reinforcements were functionalized doping polar functional groups such as glycidyl methacrylate and maleic anhydride during free-radical copolymerization to form copolymerizing reactive sites that interacted with the reinforcement surfaces. Confirmation …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 1404–1418 Read article
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A Comparative Study on Formaldehyde Detection Capabilities in Pristine Graphene and Ag-doped Graphene Sheet
Abstract: The present work concerns a detailed investigation of the enhanced formaldehyde (also known as methanal) detection by decorating the pristine (or bare) graphene nanosheet with silver (Ag) nano-particle (or foreign Ag atom). The bare graphene sheet was exposed to the formaldehyde vapor forming the formaldehyde-adsorbed pristine graphene sheet (taken as Case-I), and whose results were studied and compared with the outcomes obtained from the formaldehyde-adsorbed Ag-decorated graphene sheet (taken as …
Published in Journal of Polymer & Composites · Vol. 13, Issue 1, 2025 · pp. 801–809 Read article
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Effect of Nano-Prepared N. sativa Seed Extract on Cardiac Tissue Structure in Tartrazine-Treated Male Albino Mice
Abstract: This study investigates the effects of Tartrazine and N. sativa nanoparticles on body weight and cardiac histology in male albino mice. Thirty-six male mice were divided into four groups: a control group receiving physiological saline, a group treated with Tartrazine (20 mg/kg), a group receiving both Tartrazine and N. sativa nanoparticles (100 mg/kg), and a group treated solely with N. sativa nanoparticles (100 mg/kg). The body weights were chronicled before …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 14, Issue 3, 2024 · pp. 119–124 Read article
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Characterization of Synthesized Heterocyclic Oxadiazole Derivatives Using Mass, UV, IR, and NMR Spectroscopy, Among other Spectroscopic Techniques: Review
Abstract: The current study synthesized and assessed 3-heteroarylazo 4-hydroxy coumarin derivatives' initial antibacterial activities in vitro against four distinct pathogenic bacterial strains, including Pseudomonas aeruginosa, Bacillus subtilis, Escherichia coli, and Staphylococcus aureus. Ampicillin, a common medication, was used to compare each compound's antibacterial properties. UV, IR, 1H NMR, mass spectroscopy, and X-ray diffraction examinations were used to analyze the compounds. By using UV–vis spectra, the solute-chromic behavior of these compounds was …
Published in International Journal of Photochemistry and Photochemical Research · Vol. 1, Issue 1, 2023 · pp. 28–33 Read article
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Long Non-Coding RNAs: Key Regulators of Gene Expression in Development and Disease
Abstract: Long non-coding RNAs (lncRNAs) are RNA molecules that do not make proteins but are essential for controlling how genes are turned on or off in the body. These molecules help with various biological functions, such as guiding cell growth, shaping development, and influencing the progression of diseases. Recent advancements in genomics and transcriptomics have revealed the vast and complex roles of lncRNAs, with an increasing recognition of their involvement in …
Published in International Journal of Genetic Modifications and Recombinations · Vol. 3, Issue 1, 2025 · pp. 11–15 Read article
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Platelets A Tiny Cell Fragments
Abstract: Platelets are disc-shaped, anucleate cells that are approximately 2-3 μm in diameter. Their primary function is to control hemostasis, or blood clotting, but they also play important roles in angiogenesis (the formation of new blood vessels) and innate immunity (the body's first line of defence against infection). With a diameter of just 2-3 microns, platelets are tiny, disc-shaped cells that lack a nucleus. While their main responsibility is to ensure …
Published in Research and Reviews: Journal of Oncology and Hematology · Vol. 13, Issue 2, 2024 · pp. 22–28 Read article
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Polymer–Gel Composite Phase Change Materials: A Functional Polymer Composite Approach for Solar-Thermal Energy Storage in Building Facades
Abstract: This study investigates polymer–composite phase change materials (PCMs) in the form of polymer–gel hybrids as multifunctional systems for solar–thermal energy storage in building façades. Paraffin- and PEG-based PCMs were embedded into polyurethane and acrylic gel matrices to create shape-stabilized polymer–composites with high PCM loading (70–80 wt%). Differential Scanning Calorimetry (DSC) confirmed distinct melting/freezing transitions at ~56°C (paraffin) and ~42°C (PEG), with enthalpy values of 120–150 J/g, closely matching theoretical predictions, …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 36–51 Read article
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Differential Gene Expression Analysis of Human Atrial Fibroblasts Reveals Dysregulation of RNA Metabolism and Translational Machinery in Atrial Fibrillation
Abstract: Atrial fibrillation (AF) is a complex cardiac arrhythmia characterized by extensive structural remodeling and the activation of atrial fibroblasts, which drive the progression of fibrosis. To identify the underlying transcriptomic alterations, we analyzed six human atrial fibroblast RNA-Seq datasets (three control and three AF) retrieved from the Sequence Read Archive. After performing rigorous quality control and adapter trimming, we aligned the reads to the GRCh38 human reference genome using a …
Published in International Journal of Bioinformatics and Computational Biology · Vol. 4, Issue 2, 2026 · pp. 15–25 Read article
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Quorum Sensing and Biofilm Dynamics in Pathogens: An Evolving Frontier in Infectious Disease
Abstract: Bacterial and fungal pathogens rarely act as solitary invaders. Instead, they engage in sophisticated chemical communication known as quorum sensing (QS) to coordinate population-wide behaviours and construct structured, multicellular biofilm communities. These biofilms, composed of extracellular polymeric substances, not only facilitate microbial persistence on biotic and abiotic surfaces but also confer remarkable protection against host immune defenses and antimicrobial therapies. QS systems act as central regulators of biofilm dynamics, orchestrating …
Published in International Journal of Pathogens · Vol. 3, Issue 1, 2026 · pp. 18–23 Read article
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Synthesis and Spectral Characterization of Complexes Tin(II) With 4-Nitrophenol
Abstract: Tin(II)4-nitrophenoxide complexes with the formulas SnCl(OC₆H₄NO₂-4) and Sn(OC₆H₄NO₂-4)₂ were prepared through the reaction of stannous chloride (SnCl₂) with 4-nitrophenol (HOC₆H₄NO₂-4) in 1:1 and 1:2 molar ratios, respectively. The reaction was performed in tetrahydrofuran (THF) with diethylamine serving as the base. The resulting compounds were characterized through elemental analysis, determination of molecular weight, molar conductance measurements, and spectroscopic methods including IR and ¹H NMR spectroscopy. Current investigations are directed toward assessing …
Published in International Journal of Advance in Molecular Engineering · Vol. 4, Issue 1, 2026 · pp. 22–26 Read article
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Muscle vs. Heart: A Comprehensive Review of Anabolic Steroid-Induced Cardiovascular Risks
Abstract: Anabolic-androgenic steroids (AAS) are widely used by athletes and bodybuilders to enhance muscle mass and performance. However, their misuse is associated with serious and often underrecognized cardiovascular risks. Despite their popularity, particularly among young adults, the long-term consequences of AAS abuse on cardiovascular health remain insufficiently explored in the literature. This review aims to: 1. Analyze the cardiovascular implications of AAS use. 2. Elucidate the molecular and physiological mechanisms contributing …
Published in International Journal of Toxins and Toxics · Vol. 3, Issue 2, 2026 Read article
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pH-Responsive Smart Polymer Nanocomposites for Anti-Corrosive Coatings
Abstract: Metallic corrosion under adverse marine and industrial conditions imposes gigantic financial burdens and risks worldwide. Conventional waterproofing waterborne epoxy has passive barrier protection, but is also inherently microporous, lacking intrinsic repair ability against mechanical damage and thus rapidly decays. This is a critical gap that this work tries to bridge by designing a new pH-responsive hybrid polymer nanocomposite by using polyethyleneimine-tannic acid-cerium functionalized boron nitrate nanosheets with chitosan-capped mesoporous silica …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 201–213 Read article
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Grid based docking study of some 2-(4-methylsulfonyl phenyl) pyrimidine derivatives (designed after QSAR studies) with Cyclooxygenase
Abstract: Molecular docking helps in studying drug/ligand or receptor/ protein interactions by identifying the suitable active sites in protein, obtaining the best geometry of ligand-receptor complex and calculating the energy of interaction for different ligands to design more effective ligands. In Grid based docking, after unique conformers of the ligand are generated, the receptor cavity of interest is chosen and a grid is generated around the cavity. Cavity points are found …
Published in International Journal of Antibiotics · Vol. 1, Issue 1, 2024 · pp. 23–41 Read article
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In-Silico Docking of Rubia cordifolia Phytocompounds as Potential MMP-2 Inhibitors for Varicose Vein Management
Abstract: Varicose veins are one of the most common disorders, affecting the vein structure and function of lower limbs, yet there has been no absolute cure found yet. One of the underlying causes for worsening of the condition is the proteolytic activity of MMPs which are a group of enzymes that affect the extracellular matrix (ECM) surrounding the affected veins. Phytocompounds of Rubia cordifolia (Manjishta) were docked against the MMP-2 protein …
Published in International Journal of Biochemistry and Biomolecule Research · Vol. 3, Issue 2, 2025 · pp. 31–42 Read article
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Responses of Phytoplankton Community Structure to Polycyclic Aromatic Hydrocarbon Constituents in Imo River, Oyigbo, Niger Delta, Nigeria
Abstract: Phytoplankton perform a pivotal role in the food chain and serve as indicator species in environmental studies. Polycyclic aromatic hydrocarbons (PAHs) are toxic group of divergent chemicals with two or more aromatic rings coalesce side by side representing serious persistent organic contaminants posing environmental risk to aquatic life and human. Imo River receive contaminants from illegal oil refinery. The study was conducted to assess the responses of phytoplankton community structure …
Published in Journal of Water Pollution & Purification Research · Vol. 12, Issue 1, 2025 · pp. 45–53 Read article