Materials Literature
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Use of aqueous extracts of leaves, stem, and roots of the obnoxious weed coral vine (Antigonon leptopus) was explored in the biomimetic extracellular synthesis of palladium nanoparticles (PdNPs). Extracts of all the three basic components of the plant-leaves, stem, and root-serve as a reducing as well as a stabilizing…
Changes in intermolecular interactions and molecular geometry for two kinds of thermotropic cubic mesogenes, 4'-n-alkoxy-3'-nitrobiphenyl-4-carboxlic acid (denoted as ANBC-n, where n represents the number of carbon atoms in the alkoxy group) and 1,2-bis(4'-n-alkoxybenzoyl)hydrazines (BABH-n), at liquid crystal (LC) ph…
A series of Ni1−xCoxFe2O4 (x = 0–1.0) ferrite nanoparticles were synthesized by a hydrothermal process and characterized for their microstructural, magnetic, and photocatalytic properties. The nanoparticles had uniform particle morphology with a nanoscale average particle sizes of ∼14.8–29.4 nm and a narrow band gap o…
It is important to investigate the mechanism for the hydrogen embrittlement of Ni-Ti alloys in acidic fluoride solutions to improve the reliability and safety of these alloys as dental devices. Therefore, the hydrogen embrittlement behavior of Ni-Ti shape memory alloy immersed in acidic fluoride solution was investiga…
We have investigated the adsorption and reaction mechanisms of C2H4 and O2 catalyzed by a Au38 nanoparticle based on periodic density-functional theory (DFT) calculations. The configurations of the adsorption of C2H4/Au38, O2/Au38, and O/Au38 as well as the coadsorption of C2H4-O2/Au38 were predicted. The calculation…
In recent decades, targeted nano-drug delivery systems have attracted extensive attention in cancer therapy for their efficient drug delivery and tumor site specificity. Tumor vasculature, including angiogenesis and vasculogenic mimicry is associated tightly with tumor growth, progression and metastasis. Therefore, na…
LiMnPO 4 was successfully synthesized via thermal decomposition processes of the synthesized MnHPO 4 ·3H 2 O precursor. Thermogravimetry/differential thermal gravimetry/differential thermal analysis, Fourier transform infrared, atomic absorption spectrophotometry, X-ray diffraction, and scanning electron microscopy te…
Titrations for a series of porphyrins bearing either 4-aminophenyl or 4-pyridyl meso substituents were performed using methanesulfonic acid in DMSO and followed by proton NMR. Special emphasis was placed on identifying the intermediate protonation stages that are described as hyperporphyrins, that is, where there exis…
Critical examinations were made to understand the thermophysical behavior of zirconium dioxide (ZrO 2 )–epoxy nanocomposite using differential thermal analysis/thermogravimetric analysis studies. ZrO 2 nanoparticles in the size range of 20–30 nm were used as fillers. Ultrasonic dual mode mixing (UDMM) at two different…
A hyperbolic metamaterial waveguide can reduce the group velocity of light down to zero by tuning a waveguide structure. The light trapping capability of a tapered hyperbolic metamaterial waveguide is comprehensively studied in this work. Although a pulse of light cannot be trapped forever in such a waveguide, the dur…
By combination of hard X-ray photoelectron spectroscopy (HAXPES) and first-principles band structure calculations, the electronic states of β-Ga2O3 were investigated to deepen the understanding of bulk information for this compound. The valence band spectra of HAXPES presented the main contribution from Ga 4sp, which…
Atomic layer deposition (ALD) was used to coat γ-Al2O3 particles with oxide films of varying Mg/Al atomic ratios, which resulted in systematic variation of the acid and base site areal densities. Variation of Mg/Al also affected morphological features such as crystalline phase, pore size distribution, and base site pr…
In our previous study, α-tocopherol succinate modified chitosan (CS-TOS) was synthesized and encapsulated paclitaxel (PTX) to form micelles. Preliminary study revealed that the CS-TOS was a potential micellar carrier for PTX. In this study, some further researches were done using Taxol formulation as the control to ev…
A metal-insulator transition (MIT) in ${\mathrm{BiFeO}}_{3}$ under pressure was investigated by a method combining generalized gradient corrected local density approximation with dynamical mean-field theory (GGA+DMFT). Our paramagnetic calculations are found to be in agreement with the experimental phase diagram: Magn…
ZnO hybrid materials with singly precipitated ZnO nanocrystals embedded in the glass surface were fabricated by melt-quenching method followed by the annealing process. A series of samples containing different densities and species of intrinsic defects were obtained under different annealing conditions in a controllab…
An acid-free formulation based on water, glycerol, and polyvinyl alcohol (PVA) was studied to disperse and stabilize, via steric-like interaction, low surface area cerium oxide powders. A dispersion route that implies a milling process and a proper ratio among the components was experienced. PVA was used as viscosity…
Cationic polyamidoamine (PAMAM) dendrimers are branch-like spherical polymers being investigated for a variety of applications in nanomedicine including nucleic acid drug delivery. Emerging evidence suggests they exhibit intrinsic biological and toxicological effects but little is known of their interactions with sign…
Even for apparently simple condensed-phase processes, bulk measurements of relaxation often yield nonexponential decays; the rate appears to be dispersed over a range of values. Taking averages over individual molecules is an intuitive way to determine whether heterogeneity is responsible for such rate dispersion. How…
Here, we report an efficient and facile method for constructing plasmonic gold nanostructures with controlled morphology on a Si wafer and its use as a surface enhanced Raman scattering (SERS) reporting system for specific detection of HClO. To achieve this substrate, the core gold nanoparticles (AuNPs, ∼100 nm) with…
The effect of thermal annealing on the bolometric properties of TiO2−x films was investigated. The test-patterned TiO2−x samples were annealed at 300 °C temperature in order to enhance their structural and electrical properties for effective infrared image sensor device applications. The crystallinity was changed from…