Materials Literature
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Utilization of empty fruit bunches of oil palm in Indonesia is still very low, so it should be developed further. One of them by researching the manufacture of cellulose acetate from oil palm empty fruit bunches. The process used in this study is the cellanase with α-cellulose materials. Stages reaction is activation,…
Cellulose nanowhiskers are lightweight, inexpensive, biocompatible nanomaterials that have found wide range of applications. One of their important applications is in the development of reinforced polymer nanocomposites (PNC). The aim of this study was to isolate cellulose nanowhiskers from oil palm biomass microcryst…
The present study is focused on the applications of biosynthesized silver nanoparticles in various fields. Silver nanoparticles are synthesized in vitro using marine bacteria Shewanella algae bangaramma in the laboratory. The silver nanoparticles are characterized by using UV–Vis spectrum, TEM, FTIR, EDAX, XRD and AFM…
We report on phase sensitive surface states of CdS quantum dots (QDs), where it is noticed that a simple phase change from dispersion to solid has shown significant influence on the emission spectrum. As the solvent evaporates from the dispersion, apparently yellow dispersion transforms into a white light emitter beca…
TiO2 porous films were prepared on ITO coated glass slides by the sol-gel dip-coating method assisted with Polyethylene glycol (PEG). The films were used as photo-anodes in the photo-assisted electrolytic removal of cuprous ions in cyanide media. These were characterized by SEM, UV-Visible spectroscopy and XRD. The PE…
The true stress-strain data from isothermal hot compression tests, in the temperature range of 300-500 ºC and strain rate of 0.001-0.1s-1, were employed to study the flow behavior of AZ31 and to develop constitutive equation based on an Arrhenius-type equation. The flow stress increases with the decrease of deformatio…
The growing interest in energy applications of molten salts is justified by several of their properties. Their possibilities of usage as a coolant, heat transfer fluid or heat storage substrate, require thermo-hydrodynamic refined calculations. Many researchers are using simulation techniques, such as Computational Fl…
The excellent magnetocaloric effect of a dense inorganic framework, orthorhombic Gd(OH)CO3, is evaluated by isothermal magnetization and heat capacity measurements. The large -ΔSm, both in gravimetric and volumetric units, place it as a great candidate for cryogenic magnetic cooler.
PURPOSE: The proposed project is aimed at enhancing the efficiency of epithelial ovarian cancer treatment and reducing adverse side effects of chemotherapy using nanotechnology. Overexpression of the CD44 membrane receptor results in tumor initiation, growth, cancer stem cells' specific behavior, development of drug r…
Abstract Green synthesis of silver nanoparticles was carried out using the aqueous extract of Alternanthera sessilis under various experimental conditions. The aqueous extract of Alternanthera sessilis showed significant potential for the quick reduction of silver ions. The synthesized silver nanoparticles were charac…
Abstract Some species of sulphate‐reducing bacteria (SRB) are known to mediate the formation of dolomite and Mg‐calcite. However, their exact role in the mineralization process remains elusive. Here, we present the result of a laboratory experiment that was designed to test whether formation of carbonate minerals by S…
LibGuides. Advanced Materials Engineering (EBT 421/3). Guides to Advanced Materials Engineering.
L'objectif de cette thèse a été de mettre au point l'introduction d'azoles en meso d'une porphyrine par couplage d'Ullmann; Divers azoles ont pu être introduit par cette méthode avec de bons rendements, par formation d'une liaison carbone-azote. il a même été possible avec certains azotes de réaliser des doubles coupl…
Le sujet de cette thèse porte sur l’élaboration du nouveau nanomatériau par la gravure électrochimique bipolaire (BEE) — le Ge mésoporeux et sur l’analyse de ses propriétés physico-chimiques en vue de son utilisation dans des applications photovoltaïques. La formation du Ge mésoporeux par gravure électrochimique a été…
Conception raisonnée de matériaux barrières incorporant des nano-adsorbants Un matériau est dit « barrière » quand il induit un retard à la diffusion de la molécule « pénétrante ». Il existe peu de possibilités pour moduler les propriétés barrière d'un matériau donné (ex. emballage). La possibilité technologique la pl…
Propriétés de nanostructures d'oxydes de métaux de transition pour les procédés avancés d'oxydation dans l'eau, en présence de peroxyde d'hydrogène et de peroxydisulfate comme oxydant Parmi les procédés avancés d'oxydation (AOPs), les procédés de type Fenton (réactif de Fenton: Fe2+/H2O2) et les procédés d'oxydation p…
Tesis doctoral inédita leída en la Universidad Autónoma de Madrid. Fecha de lectura: 13-9-2013.
Objectives: The goal of this study is to fabricate and investigate novel cellulose – hydroxyapatite composite scaffold for bone tissue engineering according to the bionic principle and to evaluate biological properties in vitro and in vivo. Material and methods: Cellulose gel was prepared by regeneration of cellulose…
Os aços inoxidáveis duplex (AID) caracterizam-se pela sua microestrutura composta por austenita numa matriz ferrítica, com fração volumétrica média de 50% para cada fase. A combinação destas características confere-lhes excelente resistência mecânica e à corrosão. A soldagem/junção destes aços é frequentemente uma ope…
Composite technology of a polymer matrix reinforced with artificial fibers, like fiberglass, Kevlar, carbon, etc., has become specialty in recent times moved by advances in technology in some sectors such as automotive and aerospace. The composites already have come a long way in replacing conventional materials like…