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356 articles for “SEM”
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Polymeric and Modified Nanofibers and Its Application
Abstract: Polymeric nano-fiber based materials and their application is one of the research areas in materials science and nanotechnology. Nano-fibrous materials are receiving extensive research interest for applications in diverse fields as biosensors, optical and chemical sensors, stimuli-responsive or "smart" materials, bioreactors, drug delivery carriers, antibacterial materials, tissue engineering scaffolds, clean energy, electronic and semiconductive materials, reinforced nano-composites, affinity membranes, etc. This is because of their important and interesting characteristics such …
Published in International Journal of Applied Nanotechnology · Vol. 2, Issue 2, 2016 · pp. 11–17 Read article
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Zinc oxide/Chitosan biocompatible nanocomposites: Preparation, Characterization and its use in Congo red dye photodegradation
Abstract: Zinc oxide/chitosan biocompatible nanocomposites have been successfully synthesized by co-precipitation method. The samples were characterized by X-ray diffraction (XRD), Scanning electron microscope (SEM), Energy dispersive X ray Flurescence spectroscopy (EDAX) and Fourier transformation infrared spectroscopy (FTIR). The photocatalytic efficiency and photostability of the sample was investigated systematically for Congo red degradation under solar light irradiation. UV-vis Spectroscopy was employed to investigate the optical properties and photocatalysis behavior of the Zinc …
Published in International Journal of Applied Nanotechnology · Vol. 3, Issue 2, 2017 · pp. 27–39 Read article
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Synthesis and Characterization of Graphene Nanoplatelets & Graphene Oxide Based Nanofluids With Their Comparative Analysis for Heat Transfer Applications
Abstract: Stability and thermal conductivity are the main features of nanofluids. Higher concentration of nanoparticles become the reason of agglomeration, so a balance equation is required for the preparation of remarkable nanofluids in the application point of view. In the present study, we describe a novel synthesis of graphene Nanoplatelets and graphene oxide based nanofluids with different concentration (0.001,0.003,0.005wt %) with the help of stock solution of 1mg/ml. The Hummer’s method …
Published in International Journal of Applied Nanotechnology · Vol. 4, Issue 2, 2018 · pp. 13–29 Read article
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High-k and Low-k Gate Dielectric Stacking for Low Voltage Organic Thin Film Transistors
Abstract: Electrical performance parameters of Organic thin film transistor (OTFT) are closely related to the interface characteristics of gate dielectric and organic semiconductor film. Henceforth, it becomes important to study the effect of gate dielectric stacking on device performance of OTFTs. In this paper, we demonstrate the stacking of high-k and low-k gate dielectric based Single and Dual gate OTFTs. The structural effect of Organic thin film transistors is methodically explored …
Published in International Journal of Applied Nanotechnology · Vol. 5, Issue 1, 2019 · pp. 1–7 Read article
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Porous Silicon and its Nanoparticles: A Theoretical Study
Abstract: It is very simple and cost consuming technique of fabrication of porous silicon film over silicon substrate and synthesizing the porous silicon and silicon nanoparticles. The etch reactions in RIVPSE process forms the porous structures without need of complex and expensive equipments. The luminescent porous film can be fabricated using this sample technique with any cost effecting methods such as extra energy excitation like plasma or ultraviolet photon and additional …
Published in International Journal of Applied Nanotechnology · Vol. 5, Issue 1, 2019 · pp. 14–18 Read article
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Green Nanotechnology Based Analysis & Treatment of Industrial Effluent
Abstract: The research into effluent treatment and recycling is ongoing process. Particularly the development of new methods and technology for nanowaste treatment is a focus of most professionals, scientist and engineers. One of the developments among the emerging technology is the green nanotechnology, which is environmental friendly, affordable and cost effective. This research is an overview of Green nanotechnology based analysis and treatment techniques for an industrial nanowaste is emphasized. Most …
Published in International Journal of Applied Nanotechnology · Vol. 8, Issue 2, 2022 · pp. 15–22 Read article
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Impact of Substrate Temperature on Chemically Deposited Cds Thin Films
Abstract: The interest for renewable energy sources are increasing day by day due to the limited availability of fossil fuel. Among all the renewable energy sources solar energy is growing interest due to its easy availability almost among all area of earth where people lives. Solar energy can be used as a source of energy by two ways: Solar Photovoltaic Cell and Solar thermal. Photovoltaic cells are the easiest way for …
Published in International Journal of Energetic Materials · Vol. 1, Issue 1, 2015 · pp. 22–26 Read article
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Preparation of Cu2O/ZnO Heterojunction Thin Film Solar Cell grown by RF Magnetron Sputtering
Abstract: Both cuprous oxide (Cu2O) and zinc oxide (ZnO) hold a very important position in the fields of materials science due to great potential in many acoustic, electric and optical applications. Cu2O, a direct-gap semiconductor with band gap energy of 2.0 eV has been regarded as one of the most promising materials for application to photovoltaic cells, especially for the top cell in a tandem structure. The attractiveness of Cu2O and …
Published in International Journal of Energetic Materials · Vol. 1, Issue 1, 2015 · pp. 27–30 Read article
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Potential Applications of Titanium Dioxide in Diverse Fields
Abstract: Metal oxide semiconductors, such as TiO2 nanoparticles are frequently used as photocatalyst due to non-toxicity, chemical stability, and the ability to possess relatively high photocatalytic activity of TiO2. Laboratory studies have demonstrated that organic compounds such as alcohols, carboxylic acid, phenolic derivatives, and chlorinated aromatics can be readily mineralized by TiO2 into harmless carbon dioxide, water and simple mineral acids, using molecular oxygen as the primary oxidant. Keywords: environmental pollution, …
Published in International Journal of Metallurgy and Alloys · Vol. 3, Issue 2, 2017 · pp. 8–10 Read article
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Taguchi based validation of wear prediction for Zirconium dioxide particulate reinforced Aluminium 7068 composites
Abstract: The current work emphasis on the tribological characterization of Zirconium dioxide (Zirconia, ZrO2) particulates reinforced Aluminium 7068 metal matrix composites for different process variables established following design of experiments methodology and consequent taguchi based validation techniques for wear prediction. The pin on disc wear test is carried out on specimens fabricated enroute ultrasonic assisted stir casting with controlled dispersion of 12 Wt.% of ZrO2 and subsequent machining of the castings …
Published in International Journal of Metallurgy and Alloys · Vol. 4, Issue 1, 2018 · pp. 37–50 Read article
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Effect of Ge and Pb Impurities on the Optical Properties of Amorphous (Sb2Se3)90Sn10 Thin Films
Abstract: The as prepared samples of [(Sb2Se3)90Sn10]95 M5 [M = Ge, Pb] chalcogenide system were amorphous as evidenced by X-ray diffraction studies. The optical band gap has been estimated with the help of Taucs relation for the as-deposited [(Sb2Se3)90Sn10]95M5 thin films. It is observed that the optical band gap increase with increase in the Ge and Pb content, which may be due to decrease in the density of defect states. This …
Published in International Journal of Metallurgy and Alloys · Vol. 6, Issue 1, 2020 · pp. 7–14 Read article
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Biosynthesis of silver nanoparticles using aqueous leaf extract of Muntingia calabura Linn.
Abstract: The present study was focused to synthesis silver nanoparticles using the aqueous leaf extract of Muntingia calabura L. as the reducing agent. The formation of silver nanoparticles was confirmed by colour change from light yellow to dark brownish red, UV-Visible Spectroscopy, FT-IR, X-Ray Diffraction Method (XRD), Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray microanalysis spectroscopy (EDS). The nanoparticles showed an absorbance at 443nm on UV-Visible spectroscopy. The presence of …
Published in International journal of Nanobiotechnology · Vol. 4, Issue 1, 2018 · pp. 9–15 Read article
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Formulation and Characterization of Polyhydroxyalkanoates Copolymer Nanoparticles for Controlled Drug Release
Abstract: The present study was focused on the formulation of polyhydroxyalkanoates copolymer nanoparticles (PHANPs) for in vitro controlled release of the drugs, viz. levofloxacin and amoxicillin. The PHANPs were synthesized by a triple emulsion method and conjugated with amoxicillin and levofloxacin to improve its remedial bioavailability. The PHANPs and drug conjugatedPHANPs were analysed using Scanning Electron Microscopy (SEM), Fourier Transform Infrared (FTIR) spectroscopy and X-Ray Diffraction (XRD). The cell viability % …
Published in International journal of Nanobiotechnology · Vol. 6, Issue 2, 2020 · pp. 1–11 Read article
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Trichoderma Based Synthesis of Silver Oxide Nanoparticles, Their Characterization and Assessment of Antifungal Activity
Abstract: The fungal spore suspension of Trichoderma harzianum was used for the preparation of AgO nanoparticles. T. harzianum spore suspension acts as reducing and stabilizing agent for the fabrication of nanoparticles. The synthesized nanoparticles were characterized by X-ray diffractometry (XRD), scanning electron microscopy (SEM), energy dispersive X-analysis (EDAX) and transmission electron microscopy (TEM). The AgO nanoparticles were circular in shape with average diameter 10-20 nm. The AgO nanoparticles showed promising antifungal …
Published in International journal of Nanobiotechnology · Vol. 7, Issue 2, 2021 · pp. 19–25 Read article
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Enhancing the Sensing Properties of Nanosensors for Detection of Gases
Abstract: In order to improve commercial gas sensors, many approaches have attempted to modify the sensing properties of metal oxide semiconductor gas sensors in order to achieve higher sensitivity and selectivity. Enhancements of the sensing properties of MOS sensor (Metal Oxide Gas Sensors) materials can be achieved by the development of sensors with nanoscale sizes and structures, such as nanoparticles, nanowires, nanorods etc.
Published in International Journal of Nanomaterials and Nanostructures · Vol. 1, Issue 2, 2015 · pp. 42–43 Read article
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Expedition to Nanosynthesis: A Review
Abstract: Semiconducting metal oxide (like SnO2, ZnO, Ga2O3, Co3O4,TiO2, WO3, etc.) based gas sensors are widely used for the detection of the gases like H2, CO, Nox, CH4 and other hydrocarbons due to its smaller particle size as well as higher surface to volume ratio. Presently several nanoforms of metal oxides like rods, combs, rings, springs, wires, belts, propellers are becoming popular in the field of optoelectronics, ultra-sensitive nanosized gas sensors, …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 2, Issue 1, 2016 · pp. 1–23 Read article
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Recent advances in utilization of wide band gap metal oxides for photocatalysis of organic waste
Abstract: Water cleaning has become a major challenge in the current scenario with huge amounts of industrial wastes being accumulated in the water bodies over the years. Traditional chemical, physical and biological processes for treating wastewater containing textile dye have disadvantages such as high cost, high energy requirement and generates secondary pollution during treatment process. The progressive oxidation processes technology has been appealing growing attention for the decomposition of organic dyes. …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 3, Issue 2, 2017 · pp. 1–9 Read article
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Synthesis and Characterization of Cesium Intercalated Graphene Thin Film
Abstract: Graphene Oxide (GO) becomes promising two-Dimensional (2D) material in optoelectronics due to its sparkling properties. In preparation step we used Carboxylation of graphene and vacuum filtration to create the free standing thin film of cesium (Cs) intercalated GO. In this work we have synthesized cesium (Cs) intercalated GO thin films at different concentration (0.03, 0.05, 0.1 mol %) by using vacuum filtration method. The functional group present in synthesized thin …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 4, Issue 1, 2018 · pp. 8–16 Read article
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Synthesis and Characterization of Nickel Doped BFO Nanoparticles
Abstract: In the present, work we have synthesized the pure and Nickle doped bismuth ferrite at different concentration by the chemical route method. Increasing in the doping concentration leads to generation of secondary phase, thus dopant concentration is maintained to 5mol%. XRD was used to confirm the phases transformation of nanocrystalline composite materials along with measurement of the crystallite size. Scanning electronic microscopy (SEM) was used to study the morphological properties …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 4, Issue 1, 2018 · pp. 17–29 Read article
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Synthesis of 2-(2,3-dichlorophenyl)-5-(substituted)-1,3,4-Oxadiazole Microcrystals by Solvothermal Method and Assessment of in vitroAntibacterial with Docking and in vivo Larvicidal Efficiency with Comprehensive Toxicological Studies
Abstract: 2,5-Disubstituted 1,3,4-oxadiazole compounds are among the most beneficial organic molecules of biological importance. In the current research, a new series of 2-(2,3-dichlorophenyl)-5-(substituted)-1,3,4-oxadiazole compounds have been synthesized solvothermally from derivatives of2,3-dichloro-N'-(substituted)benzohydrazide and Chloramine-T as an oxidizing agent using autoclave with good yield. The obtained products are micro-sized (5µm–20µm) crystals confirmed through SEM. The structures of synthesized compounds were confirmed through IR, 1H-NMR, 13C-NMR, mass Spectroscopy, Elementary analysis. Molecular docking study shows …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 6, Issue 1, 2020 · pp. 29–44 Read article