Materials Literature
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Sulfidation of silver nanoparticles (AgNPs), which is known to alter AgNP toxicity, occurs during transport through wastewater treatment plants. In this study, arrays of immobilized AgNPs fabricated by nanosphere lithography (NSL) were used to study AgNP sulfidation in a full-scale wastewater treatment plant (WWTP). A…
We synthesized the following previously unreported aluminum-containing solid solution Mn+1AXn phases: (Ti0.5, V0.5)3AlC2, (Nb0.5, V0.5)2AlC, (Nb0.5, V0.5)4AlC3 and (Nb0.8, Zr0.2)2AlC. Rietveld analysis of powder X-ray diffraction patterns was used to calculate the lattice parameters and phase fractions. Heating Ti, V,…
Bilayer graphene has a distinctive electronic structure influenced by a complex interplay between various degrees of freedom. We probed its chemical potential using double bilayer graphene heterostructures, separated by a hexagonal boron nitride dielectric. The chemical potential has a nonlinear carrier density depend…
First-principles calculations for carbyne under strain predict that the Peierls transition from symmetric cumulene to broken-symmetry polyyne structure is enhanced as the material is stretched. Interpretation within a simple and instructive analytical model suggests that this behavior is valid for arbitrary 1D metals.…
Abstract In a superconductor electrons form pairs and electric transport becomes dissipation-less at low temperatures. Recently discovered iron-based superconductors have the highest superconducting transition temperature next to copper oxides. In this article, we review material aspects and physical properties of iro…
In this review we cover recent developments in the area of surface-enhanced dropwise condensation against the background of earlier work. The development of fabrication techniques to create surface structures at the micro- and nanoscale using both bottom-up and top-down approaches has led to increased study of complex…
OBJECTIVE: The aim of this study was to obtain kinetic data that can be used in human risk assessment of titanium dioxide nanomaterials. METHODS: Tissue distribution and blood kinetics of various titanium dioxide nanoparticles (NM-100, NM-101, NM-102, NM-103, and NM-104), which differ with respect to primary particle…
Passivated phosphorene nanoribbons, armchair (a-PNR), diagonal (d-PNR), and zigzag (z-PNR), were investigated using density functional theory. Z-PNRs demonstrate the greatest quantum size effect, tuning the bandgap from 1.4 to 2.6 eV when the width is reduced from 26 to 6 Å. Strain effectively tunes charge carrier tra…
Three-dimensional (3D) ordered mesoporous Ag/Co 3 O 4 and K–Ag/Co 3 O 4 catalysts were successfully prepared on the basis of 3D-Co 3 O 4 . All catalysts possess 3D mesoporous structures, which are not affected due to Ag and K addition. Ag nanoparticles, uniformly dispersed and supported on the polycrystalline wall of…
Dendrimers are discrete nanostructures/nanoparticles with 'onion skin-like' branched layers. Beginning with a core, these nanostructures grow in concentric layers to produce stepwise increases in size that are similar to the dimensions of many in vivo globular proteins. These branched tree-like concentric layers are r…
A metal micro-textured thermal interface material (MMT-TIM) has been developed to address the shortcomings of conventional TIMs for Remote Radio Heat (RRH) applications. The performance of the MMT-TIM was characterized in-situ by monitoring the temperatures of the dominant heat generating devices in an RRH Power Ampli…
An atmospheric-pressure radio-frequency (RF) corona torch plasma and a low-pressure parallel-plate RF plasma are employed to increase hydrophilicity of polycarbonate and acrylonitrile butadiene styrene surfaces. The contact angle of water for the plastic surfaces is decreased by Ar plasma treatment in any condition, w…
Sr2FeMoO6 (SFMO) films were grown on SrTiO3 (100)- and (111)-oriented substrates via pulsed laser deposition (PLD). In order to study the fundamental characteristics of deposition, films were grown in two different PLD chambers. In chamber I, the best films were grown with a relatively long substrate-to-target distanc…
Abstract There is increasing interest in studying the interaction of nanoparticles with biomolecules, microorganisms, and noble metals to explore their unique properties and potential biological applications. The synthetic butyloxycarbonyl (Boc)‐protected methyl esters of peptides composed of only aliphatic amino acid…
A series of isomeric poly(thioether ether imide)s (PTEIs) containing both thioether and ether linkages were prepared by aromatic nucleophilic substitution reaction of isomeric bis(chlorophthalimide)s (BCPIs) with bis(4-mercaptophenyl) ether (BMPE). The inherent viscosities of synthesized polymers were found in the ran…
Abstract Thermodynamic irreversibility in thin silicon film is considered and entropy generation in the film is predicted. The Boltzmann equation is incorporated to formulate the phonon transport in the film due to temperature disturbance across the film edges. Frequency-dependent and frequency-independent phonon tran…
We show that the structure, properties, and concentration of vacancies in crystals can be studied by ultrasonic experiments previously employed for impurity centres only. Measurements of the temperature dependence of attenuation and phase velocities of ultrasonic shear waves of 52 MHz propagating along the crystallogr…
Abstract The disposal problem of bark residues and the shortage of wood raw material supply in some regions make the use of bark an attractive option for the industry. In this study, medium-density particleboards were manufactured from mixed black spruce bark and spruce-pine-fir wood particles at a weight ratio of 50/…
Novel divertor cooling system concept is currently under development at Princeton Plasma Physics Laboratory. This concept utilizes supercritical carbon dioxide as a coolant for the liquid lithium filled porous divertor front plate. Coolant is flowing in closed loop in the T-tube-type channel. Application of CO2elimina…
The "projection operator" method is a variation of the normal-vector method for simulating optical diffraction from biperiodic gratings. A projection operator defined by the normal vector is interpolated over the grating volume rather than interpolating the vector itself. This approach circumvents difficulties associa…