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93 articles for “Molecular weight”
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Evaluation of Polyethylene Glycol (PEG)-Based Polymers for Improving Solubility and Bioavailability of Poorly Soluble Drugs
Abstract: A significant barrier to optimizing oral bioavailability is the inadequate water solubility of numerous pharmaceutical compounds. This study examined whether polymer systems utilizing polyethylene glycol (PEG) may enhance the solubility and bioavailability of a poorly soluble model drug. Multiple PEG polymers with molecular weights between 2,000 and 10,000 Da were utilized to produce PEGylated preparations. The formulations were subsequently evaluated for dissolution efficacy, medication loading capacity, particle size, and solubility …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 489–499 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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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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Extraction and Characterization of Pectin from Malabar Tamarind, and Indian Wild Lime
Abstract: Pectin is a versatile heteropolysaccharide that is widely used in the food, pharmaceutical, and biomedical industries because of its gelling, stabilizing, and emulsifying properties. This review discusses the extraction of pectin from agro-waste peels of Malabar tamarind (Garcinia cambogia) and Indian wild lime (Citrus indica) using conventional acid hydrolysis under optimized conditions: pH 1.5–2.0, 85–90°C, and 90 minutes. The process resulted in 22.5% and 27.8% pectin yields, respectively, verified through …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 472–478 Read article
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Data-Driven Digital Twin Model for Real-Time Strength Estimation in Polymeric Materials
Abstract: The real-time prediction of mechanical properties in polymeric materials is essential for ensuring quality, consistency, and operational efficiency in modern manufacturing systems. As industrial processes become increasingly complex, traditional trial-and-error approaches to material characterization are no longer sufficient to meet the demands of high-throughput production environments. This study introduces a digital twin-integrated machine learning approach for the real-time estimation of tensile strength in polymeric materials by combining simulation-driven insights with …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 246–257 Read article
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Role of Electron Donors in MgCl2 Supported Ziegler-Natta Catalysis: DFT Approach
Abstract: An insight into the nature of carbonate-based electron donors in high-activity MgCl2 supported Ziegler-Natta (Z-N) catalysts has been studied and compared with conventional phthalate and diether systems by employing density functional theory (DFT) calculations. In the catalyst activation (one of the important processes to produce the active catalyst sites), the conventional monometallic and recently characterized bimetallic (TiCl2(Et)–Cl–AlEt2) active site are studied in the presence/absence of electron donors. These active sites …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 16, Issue 2, 2025 · pp. 51–81 Read article
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Synthesis and antibacterial studies of some bivalent transition metal ions Zn (II), Cu (II) and Ni (II) complexes of Schiff’s base derived from some substituted aromatic aldehydes.
Abstract: In this study, Schiff bases were synthesised through the condensation of aromatic aldehydes with primary amines and subsequently complexed with Ni(II),Zn(II) and Cu(II) ions. The formation of the metal complexes was confirmed by FTIR spectroscopy, which identified the key functional groups involved in coordination. The biological activity of the prepared compounds were studied with the help of selected bacteria like E. coli , Pseudomonas. and B. sereus.. The results obtained …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 16, Issue 2, 2025 · pp. 96–104 Read article
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Studies on the Self-Assembly of Steroids and DNA Mediated by Naphthalene-Based Amphiphilic Block Copolymer
Abstract: Amphiphilic block copolymers have attracted considerable interest in pharmaceutical and biomedical applications, including controlled drug release, gene delivery, and biomolecular sensing. In this study, fluorescent amphiphilic block copolymers were designed to facilitate interactions with biological molecules, such as DNA and antiviral agents, enabling their behavior to be monitored through fluorescence spectroscopy. Two novel block copolymers, poly(methyl methacrylate)-b-poly(dimethylaminoethyl methacrylate-co-naphthyl methacrylate) [PMMA-b-P(DMAEMA-co-NMA)] and poly(styrene)-b-poly(tert-butyl acrylate-co-naphthyl methacrylate) [PS-b-P(t-BA-co-NMA)], were synthesized successfully via atom …
Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 · pp. 183–196 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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Synthesis and Study of Different Thioamides as Corrosion Inhibitors
Abstract: Many organic compounds having electron rich atoms in their structures, such as nitrogen, and sulphur are widely use in lubricating additives, in the oil industry to minimize corrosion. The presence of electron rich atoms in the molecules increases its ability to form coordinate covalent bonds with the metal atoms, involved in the corrosion environment. Compounds based on fatty amines, aromatic amines, imidazoline, diamidazoline, and fatty amides are now, uses as …
Published in Journal of Catalyst & Catalysis · Vol. 3, Issue 3, 2016 · pp. 18–25 Read article
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Structural, Mechanical, Electrical and Magnetic Properties of Mn–Zn Substituted Ca-hexaferrites
Abstract: In the present investigation, the samples with chemical composition Ca(CoTi)0.5(MnZn)x/2Fe11–xO19 with (x = 0 to 1.0) have been synthesized using perfect stoichiometric proportions of reacting oxides by standard ceramic technique. The pellets of 15 mm diameter were prepared and sintered at 1313 K in air atmosphere for 106 h and characterized by using XRD and SEM. XRD studies of the samples showed hexagonal magnetoplumbite (M) structure with unit cell dimensions …
Published in Journal of Materials & Metallurgical Engineering · Vol. 1, Issue 1-3, 2011 · pp. 99–111 Read article
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Production, Estimation and Protein Network Studies of Bioethanol Fermented Media from Maduca Longifolia Produced by Surface Fermentation using Candida Albicans
Abstract: Candida albicans is a fungus that is used as industrially important species in fermentation productions from past several decades. In the present experimentation, Madhuca longifolia dried flowers with Candida albicans, Saccharomyces cerevisiae, and Pseudomonas aeruginosa respectively are used as cultures and was analyzed for bioethanol production. Bioethanol produced in M. longifolia+yeast with about 40% was more compared with other samples. M. longifolia+ Pseudomonas showed 20% ethanol, M. longifolia+ candida 14% …
Published in Research and Reviews : Journal of Computational Biology · Vol. 7, Issue 1, 2018 · pp. 9–14 Read article
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Preliminary In Silico Analysis of Choline Monooxygenase and Betaine Aldehyde Dehydrogenase from Suaeda monoica Forssk. and its Expression in E. coli.
Abstract: AbstractIn a tropical country like India, the yield of crop plants is majorly affected by soil salinity and drought. One of the strategies to address this problem is by introducing genes responsible for salinity/drought tolerance in crop plants. Such genes could be identified and isolated from mangrove plants, as they are known to have evolved certain physiological mechanisms to augment saline environments. One such mechanism is the accumulation of Glycine …
Published in Research and Reviews : Journal of Computational Biology · Vol. 9, Issue 1, 2020 · pp. 10–39 Read article
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Taxonomic Assessment of Thermostable Amylase Producer from the Unkeshwar Hot Spring, Nanded
Abstract: Total 42 thermophiles were isolated from the Unkeshwar hot spring of Maharashtra, India. Of these 23 thermostable amylase producers were identified as Bacillus alvei APP1, Bacillus brevis APP2, Bacillus sterothermophilus APP3, Bacillus subtilis APP4, Bacillus farraginis APP5, Bacillus firmus APP6, Bacillus licheniformis APP7, Bacillus megaterium APP8, Lysinibacillus sphaericus APP10, Paenibacillus alvei APP11, Bacillus simplex APP12, Staphylococcus cohnii APP15, Streptococcus thermophilus APP16, Bacillus cereus APP18, Bacillus atrophaeus APP19, Bacillus lentus APP24, …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 9, Issue 1, 2019 · pp. 113–126 Read article
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A Review of the Use of Direct Oral Anticoagulants for Treating Venous Thromboembolism in Patients with Cancer
Abstract: Venous thromboembolism is a common complication in patients with cancer. Treatment guidelines have long recommended low molecular weight heparin as the first-line therapy. There is a growing body of literature regarding direct oral anticoagulants in treating venous thromboembolism in these patients. The data regarding the use of direct oral anticoagulants in this population is reviewed as are the most current guidelines from the National Comprehensive Cancer Network. Keywords: Anticoagulants, venous …
Published in Research and Reviews: Journal of Oncology and Hematology · Vol. 7, Issue 2, 2018 · pp. 15–17 Read article
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Cadmium Toxicity: Oxidative Stress and Organ Dysfunction
Abstract: Due to continued anthropogenic mobilization, cadmium accumulation in the environment causes various health problems because of its diverse toxic effects, extremely lingering biological half life (20–30 years), low rate of excretion from the body and storage predominantly in soft tissue primarily liver and kidney. Cadmium is known to have numerous noxious effects, including nephrotoxicity, hepatoxicity, osteoporosis, cardiovascular toxicity, lung toxicity, and reproductive toxicity. The biologically significant ionic form of cadmium, …
Published in Research and Reviews: A Journal of Toxicology · Vol. 4, Issue 2, 2014 · pp. 14–31 Read article
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Polypropylene Fibres in Cementitious Composites: A Critical Review of Polymer Structure, Processing, Interfacial Behaviour and Performance
Abstract: Polypropylene (PP) fibres are widely used as secondary reinforcement in cementitious composites, yet their performance is governed as much by polymer structure and interfacial chemistry as by dosage. This review synthesises 50 primary sources (2003-2025, concentrated post-2015) to examine how PP molecular structure, fibre-manufacturing history, morphology, surface properties and environmental ageing govern fibre-matrix interaction and multiscale composite performance. Isotacticity, molecular weight, crystallinity and drawing ratio are shown to set the …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 Read article
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Mono(acetylacetonato)zirconium(IV) Aryloxides: Synthesis, Reactivity and Thermoanalytical Investigation
Abstract: Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 A series of novel zirconium(IV) complexes, formulated as ZrCl3−n(acac)(OArI–V)n (where n =− 3; –OArI = OC6H4Cl-2, –OArII = OC6H4Cl-4, –OArIII = –OC6H3Cl2-2,4, OArIV = –OC6H3Cl2-2,6 and OArV = –OC6H2Cl3-2,4,6) were synthesized by reacting ZrCl3(acac) with corresponding substituted chlorophenols in separate experiments. The complexes were characterized by elemental analysis, molar conductance measurements, molecular weight determination, spectroscopic techniques (1HNMR and IR) and thermal …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 3, Issue 1, 2012 · pp. 6–16 Read article
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Free Radical Copolymerization of N-(4-chloro-2-methyl phenyl) Maleimide with Vinyl Monomers and Characterization of Polymers
Abstract: The free radical copolymerization of N-(4-chloro-2-methyl phenyl) maleimide (CMPM) with ethyl acrylate, methyl acrylate and vinyl acetate in THF at 65ºC using free radical initiator was described. The physical characteristics like solubility, intrinsic viscosity and molecular weight were determined and discuss the effect of vinyl monomer in properties of polymers. The structure was ascertained by spectral analysis. The thermal stability of copolymers was evaluated by TGA. Keywords: N-(4-chloro-2-methyl phenyl) maleimide, …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 3, Issue 2, 2012 · pp. 1–8 Read article
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Development, Characterization and Evaluation of Topical Gel of Clove Oil
Abstract: A wide choice of vehicles ranging from solid to semisolid forms has been used for skin care and of dermatological disease. High molecular-weight water-soluble polymers of sodium carboxymethyl cellulose (CMC), gelatin, sodium alginate that possess very high viscosity, transparency, film forming properties at low concentration, are reported to be useful in formation of gel. In the present research work, gels of clove oil using different gel-forming agents such as sodium …
Published in Research and Reviews: A Journal of Pharmacology · Vol. 2, Issue 2, 2012 · pp. 5–11 Read article