Materials Literature
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This study was conducted to determine the effect of zeolite as filler on mechanical properties, and thermal structure blends of natural rubber and polypropylene (NR/PP). In this study, NR/PP/PP-g-MA blends was filled uncalcined zeolite and calcined zeolite at different weight percent of the 2, 4, and 6%. Samples were…
The scaffold geometries, stability and magnetic features of the (pyridine-2-yl)methanolate (L) supported wheel-shaped transition-metal complexes with compositions [M6L12] (1), [Na⊂(ML2)6](+) (2), and [M'⊂(ML2)6](2+) (3), in which M=Co(II), Ni(II), Cu(II), and Zn(II) were investigated with density functional theory (DF…
Titanate nanowires (TiONWs) are synthesized through the hydrothermal method and characterized in acidic aqueous dispersions by using electrophoresis, dynamic light scattering, and atomic force microscopy. The TiONWs have a rodlike shape with an average length of about 600 nm and a thickness of 35 nm. They are positive…
This work describes the use of direct current (DC) cyclic voltammetry (CV) and alternating current (AC) electrochemical impedance spectroscopy (EIS) as a means to monitor an electrochemical interface of different mass flow direction induced polyaniline (PANI) film in IL (BmimPF6). Observed by SEM, vertical mass flow (…
The magnetic reversal behaviors of single domain sized Nd-Fe-B permanent magnets, with and without isolation between the Nd2Fe14B grains, was clarified using small-angle neutron scattering (SANS). The SANS patterns obtained arose from changes in the magnetic domains and were analyzed using the Teubner–Stray model, a p…
Magnesium (Mg) is a promising conductive metallic biomaterial due to its desirable mechanical properties for load bearing and biodegradability in human body. Controlling the rapid degradation of Mg in physiological environment continues to be the key challenge toward clinical translation. In this study, we investigate…
Room-temperature electrocaloric properties of Pt/BaTiO3/SrRuO3 ferroelectric tunnel junctions (FTJs) are studied by using a multiscale thermodynamic model. It is found that there is a divergence in the adiabatic temperature change ΔT for the two opposite polarization orientations. This difference under a typical writi…
The effect of phonon focusing on the temperature dependence of thermal conductivity of single crystalline silicon is studied at temperatures from 3 to 40 K in the frame of generalized Callaway theory. Thermal conductivity has been calculated for silicon samples in the form of finite length rectangular rods with differ…
1 H and 27 Al NMR is used to reveal the motions of AlH 4 anions in KAlH 4 . Line-narrowing from rotations and from translational diffusion is observed in the NMR of both nuclei. Unlike the anions in NaAlH 4 and LiAlH 4 that are not rotating on the NMR time scale at room temperature, the KAlH 4 anions are already rotat…
A coordination polymer gel that is self-assembled to form a network structure between a thiacalix[4]arene derivative (L) and Co(2+) has been prepared. This gel is capable of selectively changing color in the presence of gases that yield hydrogen chloride upon hydrolysis. The UV-vis absorption spectrum of a coordinatio…
The focus of this research is on linear and nonlinear melt rheological investigations of polylactide (PLA) and nanographite platelet (NGP) based bionanocomposites. The linear steady and dynamic shear viscoelastic behaviors of the samples is analyzed to study the effects of NGP filler contents on the rheological proper…
Conjugated polymer actuators have potential use in implantable neural interface devices for modulating the position of electrode sites within brain tissue or guiding insertion of neural probes along curved trajectories. The actuation of polypyrrole (PPy) doped with dodecylbenzenesulfonate (DBS) is characterized to asc…
Thermal evolution and an intermediate phase between ferroelectric orthorhombic and paraelectric tetragonal phase of multiferroic Bi5Ti3FeO15 ceramic have been investigated by temperature-dependent spectroscopic ellipsometry and Raman scattering. Dielectric functions and interband transitions extracted from the standar…
Freestanding membranes created from Bombyx mori silk fibroin (BMSF) offer a potential vehicle for corneal cell transplantation since they are transparent and support the growth of human corneal epithelial (HCE) cells. Fibroin derived from the wild silkworm Antheraea pernyi (APSF) might provide a superior material by v…
Understanding of the contact between graphene and metal is a key issue to improve device performance. We extend the previous finding of work function pinning of monolayer graphene under various metals to multilayer graphene and discover that the work function of graphene under metal can be tuned from 4.3 eV to 5.1 eV…
A dense carbon nanotube [CNT] forest was formed by chemical vapor deposition [CVD] using spin-coated iron oxide (Fe2O3) thin-film on Si substrate. The nanoforest contains carbon nanotubes was obtained by feeding a mixture of acetylene, hydrogen and nitrogen [N2:H2: C2H2 = 27: 27: 5 mL/min] for 45 min at 700°C in the C…
The aim of this investigation was to understand and engineer the interactions between endothelial cells and the electrospun (ES) polyvinylidene fluoride-co-hexafluoropropylene (PVDF-HFP) nanofiber surfaces and evaluate their potential for endothelialization. Elastomeric PVDF-HFP samples were electrospun to evaluate th…
Biocomposites are emerging as a possible sustainable alternative in structural applications, and as a result, a major focus should be on their durability. This study focuses on the environmental aging of bioresin glass fiber–reinforced polymer (GFRP) through immersion in saltwater at elevated temperatures. The resin i…
Abstract Experimentally, A Zn 2 Sb 2 samples ( A =Ca, Sr, Eu, Yb) are found to have large charge carrier concentrations that increase with increasing electronegativity of A. Using density functional theory (DFT) calculations, we show that this trend can be explained by stable cation vacancies and the corresponding fin…
Isoniazid (Laniazid, Nydrazid), also known as isonicotinylhydrazine (INH), is an organic compound that is the first-line medication in prevention and treatment of tuberculosis. The optimized geometry of the isoniazid and its derivative N-cyclopentylidenepyridine-4-carbohydrazide molecule has been determined by the met…