Materials Literature
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The effect of thin-film characteristics on the thermionic emission of dispenser cathodes has been investigated. Nanoparticle Ir thin films were grown by magnetron sputtering at room temperature. Microstructures of these thin films grown at different sputtering pressures were observed using a scanning electron microsco…
We report the effect of 3d metal Cobalt (Co) and Nickel (Ni) doping on the FeTe0.5Se0.5superconductor with the nominal composition range Fe1 - xMxTe0.5Se0.5( M = Co, Ni and x = 0.00, 0.01 0.02, 0.05 , and 0.10). Samples are synthesized through standard solid state reaction route and all are crystallize in single phase…
Abstract Functionalized next generation biodegradable polymeric systems (bioplastics) that have better compatibility, enhanced relaxation, and thermal properties were designed using bentonite‐added alginate biocomposite films in the presence of borax. A series of bentonite‐added biocomposite films crosslinked with CaC…
A symmetry-additive ab initio model for second-harmonic generation (SHG) activity of protein crystals was applied to assess the likely protein-crystal coverage of SHG microscopy. Calculations were performed for 250 proteins in nine point-group symmetries: a total of 2250 crystals. The model suggests that the crystal s…
Urea-based molecular constructs are shown for the first time to be nonlinear optically (NLO) active in solution. We demonstrate self-assembly triggered large amplification and specific anion recognition driven attenuation of the NLO activity. This orthogonal modulation along with an excellent nonlinearity-transparency…
Abstract Hydrophobic nanosilica or nanofluoric particles were mixed with fluoropolyurethane resin to fabricate superhydrophobic coatings that have contact angles higher than 145°. These coatings were prepared from the simple mixing of nanoparticles in fluoropolymer and were cured at room temperature. Different fractio…
Mesoporous-carbon-coated graphite nanosheet (GNS@MC) composites have been synthesized by the intercalation of resol prepolymer into the interlayers of expandable graphite (EG) under vacuum-assisted conditions, followed by the exfoliation of EG through in situ polymerization, the growth of resol under hydrothermal cond…
Ultraviolet radiation (UVR) skin exposure is a common exogenous insult that can alter skin barrier and immune functions. With the growing presence of nanoparticles (NPs) in consumer goods and technological applications the potential for NPs to contact UVR-exposed skin is increasing. Therefore it is important to unders…
CuFe2O4 nanoparticles have been obtained by heat treatment of coprecipitation product, which were synthesis by reaction of Cu2+ ions and Fe3+ in alkaline condition. The morphology and microstructure of the synthesized urchin-like superstructures have been characterized by X-ray diffraction (XRD) and transmission elect…
Highly luminescent Cd-free Zn doped CuInS(2) nanocrystals (ZCIS NCs) were synthesized, and their properties were evaluated using X-ray diffraction, Raman, UV, and photoluminescence. The crystal structure of the ZCIS NCs was similar to the zinc blende, and the lattice constant decreased with increasing Zn concentration…
Mesocrystals of ZnO were synthesized hydrothermally by using gum arabic as a structure-directing agent. Their hierarchical structure has a unique twin-brush form consisting of vertically aligned nanorods in a single-crystal-like porous form. The formation mechanism of the twin-brush ZnO was investigated by quenching a…
The Jiles-Atherton (J-A) model is very suitable for modeling ferrite-core based inductors and transformers. In this paper the differential evolution (DE) method was applied to extract five parameters in static J-A model first. Then it was applied to extract another two parameters in dynamic J-A model with five paramet…
The objective of this part is to compare the results calculated from the model developed in part I with experimental measurements. Five warp-knitted spacer fabrics made with polyester filaments but with different thicknesses and outer layer structures, as well as different spacer yarn fineness, are selected for testin…
A simple route towards highly crystalline and hierarchically porous tungsten oxide nanotubes is presented. Interestingly, due to the limited wall thickness, the metastable orthorhombic high-temperature polymorph could be stabilized for the first time at room temperature without doping. In brief, ammonium metatungstate…
Studies on quantum dot light emitting devices (QD-LEDs) show that the lifetime of a QD exciton is modified by localized surface plasmon resonant (LSPR) coupling of Au nanoparticles (NPs). The efficiency roll-off of the device containing Au NPs was reduced by 15%. A significant enhancement of 116% for both luminance an…
Nine L-shaped benzimidazole fluorophores have been synthesized, computationally evaluated and spectroscopically characterized. These "half-cruciform" fluorophores respond to bases, acids and anions through changes in fluorescence that vary from moderate to dramatic.
N-ZnO/P-CuI heterojunctions are fabricated by growing undoped n-type ZnO thin films on p-type$\gamma$-CuI (111) single-crystal substrates using radio-frequency magnetron sputtering. The ZnO films are identified to be columnar structured with$c$-axis-preferred orientation by using X-ray diffraction and scanning electro…
Electrical signals are used to trigger the entrapment and release of antibiotics on the surface of titanium plate. The entrapment of antibiotics relies on the electrochemically induced pH gradient generated at the titanium surface that allows the gelation of an aminopolysaccharide chitosan and codeposition of vancomyc…
Nonhydrolytic/non-sol–gel pyrolytic synthesis technique, as a convenient method, was applied to synthesize zirconium oxide nanoparticles (ZrO 2 NPs). Pyrolysis of either the mononuclear keto ester/alkoxide complex zirconium bis(isopropoxide)bis( tert -butylacetoacetate) [Zr(O i Pr) 2 (tbaoac) 2 ] ( I ) or the oligonuc…
This paper investigates the impact of natural change in salinity on the morphological plasticity of diatom frustules. In particular, this study uses as an example the highly saline lagoons of the Coorong wetlands in South Australia. These wetlands have been strongly impacted by the drought in South Australia (2004–201…