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532 articles for “dispersant”
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Fabrication and Characterization of Sustained Release Beads of Carbamazepine by Extrusion – Spheronization Containing Carbopol®974
Abstract: The erratic absorption of Carbamazepine, BCS Class II drug, due to low water solubility and anticholinergic properties can be minimized by developing sustained release beads. Sustained release beads of Carbamazepine were prepared using axial single screw extruder and a chequered plate spheronizer. Beads offer therapeutic advantages such as easy dispersion in the gastro-intestinal tract, lower risk of dose dumping, reduce peak plasma fluctuations and drug release is independent of gastric …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 2, Issue 2, 2011 · pp. 11–21 Read article
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CONVECTION IN COMPRESSIBLE COUPLE-STRESS DUSTY FLUID
Abstract: The problem of thermosolutal convection in compressible couple-stress fluid in presence of suspended particles is considered. Following the linearized stability theory and normal mode analysis, the dispersion relation is obtained. For the case of stationary convection, the compressibility, couple-stress and stable solute gradient postpone the onset of convection whereas the suspended particles hasten the onset of convection. Graphs have been plotted by giving numerical values to the parameters to depict …
Published in Journal of Experimental & Applied Mechanics · Vol. 5, Issue 2, 2014 · pp. 27–37 Read article
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Characterization for Metal Matrix Composite of Aluminium-Magnesium Alloy with SiC and B4C Reinforcement with Different Weight Percentage
Abstract: Metal matrix composites (MMCs) based on magnesium alloys are excellent candidates for engineering light structure materials, and have great potential in automotive, high performance defence and aerospace applications. Crackpropagation as well as delamination along to the interface are two major failure modes of the multilayered composites subjected over bending load. In this paper, the study is focused on the preparation of metal-matrix composites with SiC and B4C reinforcement in particulate …
Published in Journal of Experimental & Applied Mechanics · Vol. 6, Issue 3, 2015 · pp. 73–79 Read article
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Ludiflash—A Novel Excipient for Patient Friendly Dosage Form
Abstract: Consumers want a pleasant-tasting and fast-acting tablet that can be taken anywhere, anytime without the need of water. They want such a tablet that completely disintegrates within moments, with no bitterness or chalky aftertaste. FDTs fast disintegrating tablets are the dosage form which will disintegrate in mouth within seconds without need of water. This type of property in dosage form can be attained by addition of different varieties of excipients. …
Published in Research and Reviews: A Journal of Pharmacology · Vol. 7, Issue 2, 2017 · pp. 5–7 Read article
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Trusting on the soft Global platform– a Functional Imperative
Abstract: From ancient times, when simplicity prevailed at isolated civilisations, to date, when the world has become a global village, social complexities have correspondingly increased, in sympathy of size. As interspersed people are no longer in physical contact, Quality of their social interactions is also impacted. Should one continue to trust others as in past, vis-à-vis this enlarged social platform {which euphorically uses internet technologies in a world-wide networking by wire}, …
Published in OmniScience: A Multi-disciplinary Journal · Vol. 1, Issue 1, 2011 · pp. 25–35 Read article
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Fabrication and Characterization of Copper Nanowires: An Overview
Abstract: Copper (Cu) is one of the most important metals in modern electronic technology. Keeping in view its role in nanoelectronics, we have fabricated copper nanowires of diameters 100 and 200 nm using Anodic Alumina and polymer membranes as templates. Template-based growth of copper nanowires has been realized using conventional electro deposition technique in an electrochemical cell designed in our laboratory. Fabrication of copper nanowires is one of the most important …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 1, Issue 1, 2011 · pp. 1–16 Read article
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MYCOSYNTHESIS OF SILVER NANOPARTICLES AND INVESTIGATION OF THEIR ANTIMICROBIAL ACTIVITY
Abstract: The silver nanoparticles were formed in contact with the cell free filtrate of Alternaria alternata. The nanoparticles were characterised by means of UV-Vis spectrophotometer, Transmission electron microscopy (TEM), Dynamic Light Scattering (DLS), Energy-dispersive X-ray (EDX), X-ray Diffraction (XRD) and Fourier Transform Infra-red Spectroscopy (FTIR). The synthesized silver nanoparticles showed an absorbance maximum at 420 nm in the visible range. Transmission electron microgram and particle size distribution curve showed the formation …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 1, Issue 1, 2011 · pp. 17–26 Read article
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Synthesis of Nanocrystalline Bismuth Ferrite by Solution Combustion Synthesis Method
Abstract: Normal 0 false false false EN-US X-NONE X-NONE The present paper describes a simple method of nanosized BiFeO3 by the solution combustion synthesis using bismuth and iron nitrates as oxidizers and the combination fuel of citric acid and ammonium nitrate, with fuel to oxidizer ratio (Ψ = 1) one. The average crystallite size of BiFeO3 nanoparticles was estimated from the full width half maximum of the X-ray diffraction peaks of …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 1, Issue 2, 2011 · pp. 52–58 Read article
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Study on CdS Nanoparticles and Nanocrystalline Thin Films Synthesized by Chemical Bath Deposition Technique
Abstract: Normal 0 false false false EN-US X-NONE X-NONE Cadmium Sulfide (CdS) nanoparticles and nanocrystalline thin films were synthesized by chemical bath deposition technique at room temperature. The elemental composition of the as-grown CdS nanoparticles and nanocrystalline thin films were determined by energy dispersive analysis of X-rays (EDAX). Crystallite size and lattice parameter were determined from X-ray diffractogram whereas transmission electron microscopy (TEM) image gave particle size and the selected area …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 1, Issue 3, 2011 · pp. 8–15 Read article
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Extracellular Biosynthesis of Silver Nanoparticles using the Fungus Pleurotus ostreatus and their Antibacterial Activity
Abstract: In the present study, an eco-friendly process for the synthesis of nanomaterials using a fungus (Pleurotus ostreatus) has been attempted. The fungus supernatant of seed culture was used for the biosynthesis of silver nanoparticles. The aqueous silver ions were reduced to silver metal nanoparticles when treated with the fungal supernatant. After 72h of treatment, silver nanoparticles were obtained. These silver nanoparticles were characterized by UV–Vis spectroscopy, scanning electron microscopy (SEM), …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 2, Issue 2, 2012 · pp. 28–38 Read article
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Epoxy Modified Bio-based Hyper branched Polyurethane/Clay Nanocomposites: Rheology and Biodegradability
Abstract: The rheological study of nanocomposite has significant contribution not only in processing but also reveals the dispersion state of the nano reinforcing agent in the matrix. This study divulges the rheological behavior of epoxy cured Mesua ferrea L. seed oil modified hyper branched polyurethane/clay nanocomposites. The influence of different preparative techniques viz. in situ and ex situ on the rheological properties was also investigated. The nanocomposites prepared by in situ …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 3, Issue 3, 2013 · pp. 1–12 Read article
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Synthesis, Characterization and Photocatalytic Activity of Bismuth Doped Titanium Dioxide under Different Light Sources
Abstract: 800x600 Photocatalysis is a recognized approach where light energy is employed to excite the semiconductor material and produce electron-hole pairs. These electron-hole pairs eventually involves in the detoxification of pollutants (in air or water) & water splitting. TiO2 photocatalyst shows poor activity in visible light due to its wide band gap (3.2 eV), which restricts its use under Sun light. In the present work, photocatalytic activity of TiO2 was enhanced …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 4, Issue 3, 2014 · pp. 23–31 Read article
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A Comparative Study of Structure, Morphology and Optical Properties of CaAl2O4 Phosphors by Sol–Gel Method
Abstract: In this paper, monoclinic CaAl2O4 phosphor with different weight percentage of aluminium was synthesized by low temperature sol–gel method. The prepared samples were characterized by X-ray diffraction (XRD) analysis, Fourier transform infra red (FTIR), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and photoluminescence emission spectra (PL). The XRD analysis showed that CaAl2O4 have monoclinic structure. The average size of the particles lies between 88 and 109 nm. It was …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 5, Issue 3, 2015 · pp. 1–10 Read article
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Characterization of Mn Dopped SrAlO Nano-Phosphors Prepared via Sol-Gel Method
Abstract: Strontium aluminate with Mn dopped phosphor was synthesized by Sol-Gel method using Strontium Acetate, Aluminium Acetate as raw material and 2-methoxyethanol as complexing agent. The transparent sol was preheated at 100°C for 2 h and then the precursor was finally annealed at 950°C for 2 h. The phosphor emits luminescence with peak wavelength at 395 nm and 520 nm under near-ultraviolet excitation at 360 nm. The morphology, composition and structure …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 6, Issue 3, 2016 · pp. 5–10 Read article
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A Review on the Fabrication Techniques of Carbon Nanotube Reinforced Aluminium Metal Matrix Composites
Abstract: AbstractThe recent trend towards the use of composites is increasing in the ongoing research and islikely to continue rapidly in the future. Nowadays, aluminium (Al) and aluminium alloy basedcomposites are gaining importance in the upcoming fields of engineering. Metal matrixcomposites (MMC`s) with carbon nanotubes (CNTs) reinforcements give superior mechanicaland physical properties. Aluminium Metal Matrix Composites (AMMC`s), sought over otherconventional materials in the field of automobile, aerospace, defense, sports, electronics, biomedicaland …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 7, Issue 2, 2017 · pp. 1–6 Read article
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Estimation of Genetic Diversity in Some Species of Meliaceae Family through RAPD Technique
Abstract: Random amplified polymorphic DNA (RAPD) analysis has proved to be useful in determining genetic relationship and variation in many plant species, result of RAPD analysis can be used to determine genetic distances and relatedness within or among species, which can then be utilized in construction of phytogenetic. RAPD analysis could also provide useful insights into the phylogenetic relationship. RAPD is a polymerase chain reaction (PCR), which is based on dominant …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 5, Issue 3, 2015 · pp. 11–17 Read article
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Comprehensive Centralised Surveillance System for Safe Operation of Radiological Laboratory
Abstract: The ventilation system plays an important role in preventing the release and dispersal of radioactive materials. There are a set of radiation monitoring instruments installed in vantage points in the laboratory to monitor whether ambient radiation level is within safe limits. Novel implementation of collecting ventilation system data in syncronization with radiation background data in areas handling radioactivity, ensures comprehensive safe functioning of the radioactive laboratory. In Radiochemistry Laboratory of …
Published in Journal of Nuclear Engineering & Technology · Vol. 3, Issue 1, 2013 · pp. 1–6 Read article
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PBE-based Drop Dynamics Simulation in an Unbaffled Stirred Tank Reactor
Abstract: The population balance equation (PBE)-based model describes the distribution of drop size with respective to its size. In this work, 30% TBP was dispersed in 4N nitric acid solution by turbine impeller. Drop-size distributions were measured with a 630 nm laser-based particle size analyzer. For daughter drop density function, a normal distribution function was considered. For breakage rate, Voigt model of Chen et al. was used in the simulation [1]. …
Published in Journal of Nuclear Engineering & Technology · Vol. 6, Issue 1, 2016 · pp. 25–35 Read article
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Comparative Study of Oxidation and Hot Corrosion Behavior of Uncoated and Detonation Gun Sprayed Cr3C2-25NiCr Coating on SA516 Boiler Steel at 800°C
Abstract: In the present investigation Cr3C2-25NiCr powder was deposited on boiler steel SA 516 (Grade 70) by detonation gun process. The oxidation and hot corrosion performance of coated as well as bare boiler steel was studying in the air and aggressive environment of Na2SO4–50% NaCl under cyclic conditions at an elevated temperature of 8000C. Oxidation and hot corrosion of metals and alloys has been recognized as a serious problem for elevated-temperature …
Published in Journal of Aerospace Engineering & Technology · Vol. 8, Issue 1, 2018 · pp. 5–10 Read article
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Structural Investigation on Synthesized Ag Doped ZnO-MWCNT and its applications
Abstract: Metal doped multiwalled carbon nanotube with metal oxide has unique properties which provide the remarkable studies in the field many applications. Zinc oxide nanoparticles (ZnO NPs) is a semiconducting material with a large excitation binding energy of 60 meV and wide energy band gap of 3.367 eV. The doping of silver naoparticle with ZnO/MWCNT composite materials offer values and makes it as advanced multifunctional materials. Silver nanoparticles are a highly …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 8, Issue 2, 2018 · pp. 49–59 Read article