Materials Literature
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Ternary Ba–Fe–As system has been studied to determine a primary solidification field of the BaFe 2 As 2 phase. We found that the BaFe 2 As 2 phase most likely melts congruently and primarily solidifies either in the FeAs excess or Ba x As 100- x excess liquid. Knowing the primary solidification field, we have performe…
Abstract First-principle electronic structure calculations have been performed in crystalline complex phases μ-Al4.12Mn and λ-Al4.6Mn using the TB-LMTO method. The atomic structures contain about 560 atoms in a large hexagonal unit cell. One of the main characteristic of their density of states is the presence of fine…
Ice accretion on aircraft leads to difficulties in aircraft flight control due to weight increase and change in weight distribution. Conventionally these difficulties are overcome using anti-icing or de-icing products, such as freezing depressants and heating devices. A more cost effective way to solve these problems…
This review focuses on the current trend in the commercial scale production methods of inorganic nanoparticles. The limiting factors for the scalability of synthesis methods are explained and the relationship between commercial nanoparticle materials and production methods is discussed. Particular emphasis is placed o…
Nickel oxide nanotubes with great antibacterial activities, electrochemical capacitance, and magnetic properties have been synthesized through a precursor method with dimethylglyoxime as precipitant for the precursor, and the method has been developed for the synthesis of Ni/C nanorods.
We have synthesized and characterized stable (non-aggregating, non-photobleaching and non-blinking), nearly monodisperse and highly-pure Au nanoparticles, and used them to probe nanoparticle transport and diffusion in cleavage-stage zebrafish embryos and to study their effects on embryonic development in real-time. We…
Finding suitable (transportable) storage devices for hydrogen is one of the key points to really access the foreseen “hydrogen economy”. While numerous studies are devoted to finding inorganic materials enabling the storage of hydrogen with high energy densities under “mild” conditions, relatively less effort has been…
We report the fabrication of a new superhydrophobic surface with dual-scale roughness by coating silica nanoparticles on a poly(dimethylsiloxane) (PDMS) elastomer bilayer film with micro-scaled ripples. The wetting behavior of the surface can be reversibly tuned by applying a mechanical strain, which induces the chang…
Multifunctional nanomedicine is emerging as a highly integrated platform that allows for molecular diagnosis, targeted drug delivery, and simultaneous monitoring and treatment of cancer. Advances in polymer and materials science are critical for the successful development of these multi-component nanocomposites in one…
An oxide semiconductor of β-Ga 2 O 3 has a natural solar-blind sensitivity due to its large bandgap of 4.8 eV. To evaluate its potential, a flame detector was fabricated using its conductive single crystal substrate applying a simple method without epitaxy and vacuum processes. The structure is a poly(3,4-ethylene dio…
We demonstrate a sol-gel approach, using a water-in-oil microemulsion as the template, for the synthesis of hollow and yolk/shell silica nanospheres, which can encapsulate pre-formed hydrophobic nanoparticles, and we then explore these multifunctional hollow nanospheres in cell-labeling applications.
BACKGROUND: Vitamin B6 is a collective term for a group of six interconvertible compounds: pyridoxine, pyridoxal, pyridoxamine and their phosphorylated derivatives. Vitamin B6 plays essential roles as a cofactor in a range of biochemical reactions. In addition, vitamin B6 is able to quench reactive oxygen species in v…
We present a planar design of a metamaterial exhibiting electromagnetically induced transparency that is amenable to experimental verification in the microwave frequency band. The design is based on the coupling of a split-ring resonator with a cut-wire in the same plane. We investigate the sensitivity of the paramete…
Engineered synthetic cellular systems are expected to become a powerful biomedical platform for the development of next-generation therapeutic carrier vehicles. In this mini-review, we discuss the potential of polymer capsules derived by the layer-by-layer assembly as a platform system for the construction of artifici…
Laminar flow over a bubble mattress is expected to experience a significant reduction in friction since the individual surfaces of the bubbles are shear-free. However, if the bubbles are sufficiently curved, their protrusion into the fluid and along the flow direction can lead to an increase in friction as was recentl…
Electrospinning is a very simple and versatile process by which polymer nanofibers with di-ameters ranging from a few nanometers to sev-eral micrometers can be produced using an electrostatically driven jet of polymer solution or polymer melt. Significant progress has been made in this process throughout the past few…
PEG is used to improve pharmacokinetic properties of biologicals. Concern has been expressed about the toxicological effect and/or fate of the PEG. This paper reviews the available toxicity, metabolism and clearance data of PEG and PEGylated products in order to place such concerns in to appropriate context. The avail…
The skill to use new synthetic routes to assemble nanoparticles (NPs) into advanced architectures for specific functions is a big challenge for the researchers. Controlled morphologies designed for generating 1-dimensional (1D) and 2-dimensional (2D) structures inspired by nature are one of the hot topics in nanoscien…
Single-crystal α-iron oxide (denoted as FO) particles with uniform sub-micrometer size and polyhedron-like shape have been successfully fabricated by using polyvinylpyrrolidone (PVP) capping agent-mediated hydrolysis of iron nitrate under mild hydrothermal conditions (200 °C). The hematite products were characterized…
The hydrogen delayed fracture (HDF) properties and internal hydrogen behavior were investigated in a Fe–18Mn–1.5Al–0.6C steel, a representative twinning induced plasticity (TWIP) aided steel. Slow strain rate tests (SSRT) were employed on both smooth and notched specimens to evaluate the effects of diffusible hydrogen…