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98 articles for “Keywords: Polymer”
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Synthesis and characterization of some organic semiconductor materials for optoelectronics
Abstract: Charge transfer complexes have high molar absorptivities and it’s an important phenomenon in the energy transfer process to increase the conductivity. Charge transfer complexes have been used in organic photovoltaic cells, organic semiconductors. Charge transfer complexes formed between electron donors and acceptors with strong interaction.In this paper, a Charge transfer complexes (CTC) of some organic semiconductor’s materials have been studied spectrophotometrically in chloroform, when the optical absorption of the CTC …
Published in International Journal of Energetic Materials · Vol. 6, Issue 1, 2020 · pp. 14–24 Read article
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Review on the Polymer based Microfluidic Devices for Bioengineering Applications
Abstract: In this review, few recently published research papers related to the experimental investigations are briefly summarized. The experimental observations on different effects to control the surface-driven capillary flow are mentioned related to the polymer microfluidic devices. According to the literature survey in this article, the negative photoresist SU-8 and polymethylmethacrylate (PMMA) are the two major polymers to fabricate the microfluidic devices using different conventional techniques. This review will be useful …
Published in International Journal of Polymer Science and Engineering · Vol. 4, Issue 2, 2018 · pp. 44–48 Read article
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Synthesis of chitosan mediated nanoparticles and its antimicrobial activity
Abstract: In this study, chitosan nanoparticles were synthesized from chitosan polymer by ionic gelation method. The chitin was first extracted from crab shell and then deacetylated to chitosan. The presence and characterization of chitosan nanoparticles was investigated by UV-Visible Spectroscopy (UV) and scanning electron microscopy (SEM). The antimicrobial property of these chitosan nanoparticles were studied against E.coli, S.aureus, S.typhi, P.aureginosa, C.albicans and A.niger and compare with chitosan polymer. CSNPs showed higher …
Published in International journal of Nanobiotechnology · Vol. 3, Issue 2, 2017 · pp. 31–35 Read article
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Nanocomposite Hydrogels for Water Purification
Abstract: DNA hydrogels have been demonstrated as versatile catalysts, potential adsorbents, sensors and immobilization carriers of bioactive molecules. They are a type of tenuous, semiflexible polymeric network that consists of precisely designed synthetic nucleotide strands as chemical or physical cross-linkers. Hydrogels have been widely studied due to their improved physicochemical properties and used as antibacterial platforms, wastewater pollutants, adsorbents and drug deliverers. Because of their biocompatibility and the ability to mix …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 4, Issue 2, 2018 · pp. 17–21 Read article
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MWCNT AND GRAPHENE FOR IMPROVED CORROSION RESISTANCE OF MILD STEEL
Abstract: ABSTRACTThe protective coating method is a passive corrosion protection technique. The protective coating detaches the metallic surfaces from the aggressive media, such as moisture, salts, acids etc. Nanotechnology is a relatively modern development in scientific research, the development of this concept occurred over a very short period of time. One technique that has recently been used to increase the adhesive and anti-corrosive properties of polymer coatings is the addition of …
Published in International Journal of Metallurgy and Alloys · Vol. 6, Issue 2, 2020 · pp. 12–17 Read article
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The Evolution of 3D Printing: Detailed Analysis of Processes, Materials, and Applications in Modern Manufacturing
Abstract: 3D printing, also known as additive manufacturing, has revolutionized manufacturing processes by enabling the creation of complex structures layer by layer from digital models. This technology plays a pivotal role in Industry 4.0, characterized by smart manufacturing and the integration of cyber-physical systems. This review explores the various processes used in 3D printing, the range of materials employed, and the diverse applications of 3D printing in industry. Key processes discussed …
Published in International Journal of Manufacturing and Materials Processing · Vol. 10, Issue 1, 2024 · pp. 35–46 Read article
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Review on the Capillary Flow Characteristics in Polymer based Microfluidic Systems
Abstract: In this review different effects to control the surface-driven capillary flow in polymer based microfluidic systems. Author has used the polymers like polyimide, SU-8 and polymethylmethacrylate (PMMA) to fabricate the polymer based microfluidic systems. Author has studied the individual effects of surface wettability, surface free energy, surface chemistry, surface topography, channel aspect ratio, capillary pressure, kinetic energy, centrifugal force, surface area to volume ratio, microfluidic friction, liquid viscosity and effective …
Published in International Journal of Polymer Science and Engineering · Vol. 4, Issue 1, 2018 · pp. 28–33 Read article
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Synthesis and characterization of Calcium Alginate Nanoparticle for Drug Delivery Application
Abstract: The polymeric nanoparticles (PNPs) are prepared from biocompatible and biodegradable polymers such as chitosan, gelatin, sodium alginate and albumin in size between 10-1000 nm where the drug is dissolved, entrapped, encapsulated or attached to a nanoparticle matrix. Their nanometer-size promotes effective permeation through cell membranes and stability in the blood stream. These smart PNPs are widely used as carriers in the pharmaceutical sector for controlled release in drug delivery. In …
Published in International journal of Nanobiotechnology · Vol. 4, Issue 2, 2018 · pp. 35–41 Read article
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Basic Fundamentals of Different Solar Cells, Solar Energy Materials and Photovoltaic Performances
Abstract: Solar cell is one of the thrust areas of modern technology in the field of renewable energy. Crystalline semiconductor wafer based solar cells (SCs) (thicknesses almost 200–300 μm) mainly crystalline-Si or GaAs based solar cells are playing the legend role in last few decades. With technological revolution, thin film SCs (thickness range 1–2 μm), dye-sensitized or Graetzel, organic/polymer and plasmonic solar cell respectively are known as 2nd,3rd, 4th and 5th …
Published in International Journal of Energetic Materials · Vol. 1, Issue 1, 2015 · pp. 1–9 Read article
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Spectrophtometric Study of Catalysed Oxidation of Some Cyclic Alcohols by N-bromophthalimide
Abstract: The spectrophotometric kinetic investigation of cyclohexanol and cycloheptanol catalysed by Keggin type anion [PW12O40]3- with N-bromophthalimide have been carried out in 30% acetic acid medium in absence of mercuric(II) acetate and in presence of sulphuric acid. The observed kinetic data was used for the justification of Beer-Lambert law. The reactions follow a fractional-order with respect to cyclic alcohols, PTA catalyst and first-order with respect to oxidant NBP. The added H+ …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 5, Issue 1, 2019 · pp. 44–50 Read article
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Isolation and Characterization of Tamarind Seed Polysaccharides Being Used as a Biopolymer in Modern Drug Delivery System
Abstract: Tamarind seed polysaccharide (TSP) obtained from the seed of Tamarindus indica tree. It possesses different properties like high viscosity, broad pH tolerance, biocompatibility, mucoadhesive nature. It is used as thickener, stabilizer, gelling agent in food and pharmaceutical industries and Gums are widely used natural materials for conventional and novel dosage forms. The objective of present investigation was to search for a cheap and effective natural polymer that can be used …
Published in International Journal of Polymer Science and Engineering · Vol. 2, Issue 1, 2016 · pp. 1–6 Read article
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Effect of Binder Type, Binder Content, Aggregate Gradation, Temperature and Air Voids on Rutting Susceptibility of Bituminous Mixes
Abstract: Abstract This paper presents an experimental investigation carried out to evaluate the rutting susceptibility of bituminous mixes. The effect of binder type and content, aggregate gradation and temperature are evaluated by means of a wheel tracking test. Two conventional VG 30 and VG 40 binders and one SBS polymer modified binder PMB 40 are used. Three types of aggregate gradations for bituminous concrete (BC), a dense graded mix commonly used …
Published in International Journal of Transportation Engineering and Traffic System · Vol. 1, Issue 2, 2015 · pp. 31–39 Read article
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Physico-Mechanical and Degradation Properties on Agro-Waste Based Polymer Composites Reinforced with Banana Bunch Fiber
Abstract: The usage of banana bunch fibers in polymer composite parts for the automotive, aerospace, and construction industries is growing. As people grow more aware of the danger of synthetic fibers, banana bunch fibers are being used in an increasing variety of sectors. It is important to recognize that humans depend on the Earth for survival, not the other way around. This understanding drives scientists and policymakers to seek alternatives to …
Published in International Journal of Composite and Constituent Materials · Vol. 10, Issue 2, 2024 · pp. 33–43 Read article
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Functionalization of Reclaim Rubber: Possible Precursor for Polyblends in Engineering Applications
Abstract: Improvements in mechanical and dynamic properties of a blend can be achieved by surface treatments such as grafting of functional groups on one of the blend components or activation by the application of a coating of a polymer. This paper describes the effect of grafting maleic anhydride on reclaim rubber with varying levels of maleic anhydride (i.e., 2 and 5 phr) on open two roll mills. Investigated cure characteristics and …
Published in International Journal of Analytical and Applied Chemistry · Vol. 3, Issue 1, 2017 · pp. 18–23 Read article
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Joule Effect Revolutionizing Self-Healing Polymer Nanocomposites
Abstract: Imagine a world where the materials around us, from the wings of an airplane to thecasing of your smartphone, could repair themselves after damage. No more discarding crackeddevices, no more costly structural repairs, just a material that intelligently mends its ownwounds. This vision, once confined to science fiction, is rapidly becoming a reality, thanks togroundbreaking advancements in the self-healing polymer nanocomposite materials. And at theheart of one of the most …
Published in International Journal of Polymer Science and Engineering Read article
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Joule Effect Revolutionizing Self-Healing Polymer Nanocomposites
Abstract: Abstract: Imagine a world where the materials around us, from the wings of an airplane to thecasing of your smartphone, could repair themselves after damage. No more discarding crackeddevices, no more costly structural repairs, just a material that intelligently mends its ownwounds. This vision, once confined to science fiction, is rapidly becoming a reality, thanks togroundbreaking advancements in the self-healing polymer nanocomposite materials. And at theheart of one of the …
Published in International Journal of Composite and Constituent Materials · Vol. 11, Issue 2, 2025 Read article
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Unity in Diversity: How Constituents Create Better Composites
Abstract: Composite materials have changed modern engineering by combining the bestqualities of their individual parts to make something stronger, lighter, and moredurable than any one part could be on its own. This paper examines the notionof "unity in diversity" concerning composite materials, highlighting how theamalgamation of distinct constituent phases—usually a matrix and areinforcement—yields synergistic qualities that single-phase materials cannotachieve. The matrix holds the reinforcement in place and protects it, while thereinforcement …
Published in International Journal of Composite and Constituent Materials · Vol. 11, Issue 2, 2025 Read article
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Passive Capillary Flow of Dyed Aqueous Ethanol in the Leakage-Free PMMA Microchannel
Abstract: A single polymethylmethacrylate (PMMA) microfluidic device is fabricated by the maskless lithography, hot embossing lithography and direct bonding technique. This device is tested by dyed aqueous ethanol (10% ethanol, 90% dyed water) in leakage-free condition. The passive capillary flow of dyed aqueous ethanol is recorded by a CMOS camera catching 25 frames per second. This work will be useful in commercial bioengineering applications. Keywords: Passive capillary flow, PMMA, Aqueous ethanol, …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 4, Issue 1, 2018 · pp. 12–14 Read article
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Mechanical characterization of hybrid natural fibre composites developed through compression moulding process
Abstract: Increasing environmental concerns these days due to excessive consumption of fossil-fuel products have impacted our atmosphere, which has led several researchers to work in the field of polymer composites reinforced by natural fibres. In this research, the emphasis is on developing the completely biodegradable green composites using polylactic acid (PLA) as a matrix and reinforcement with jute and sisal fiber by compression molding method and effect of various parameters on …
Published in International Journal of Composite Materials and Matrices · Vol. 6, Issue 1, 2020 · pp. 29–35 Read article
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Advantage of Microsilica in Concrete Compressive Strength
Abstract: Abstract Microsilica is an undefined sort of silica tidy for the most part gathered in sack house channels as by-result of the silicon and ferro-silicon generation. The paper condenses essential physical and synthetic properties of miniaturized scale silica and utilizes those outcomes for an assessment of small scale silica from a Health Safety and Environment (HSE) point of view. Small scale silica comprises of circular particles with a normal molecule …
Published in International Journal of Concrete Technology · Vol. 2, Issue 1, 2016 · pp. 37–43 Read article