Materials Literature
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The application of atto-second streaking spectroscopy (ASS) to direct time-domain studies of the plasmonic excitations in metallic nano-objects is addressed theoretically. The streaking spectrograms for a rectangular gold nano-antenna and spherical gold clusters are obtained within strong field approximation using cla…
III-V compounds with the zinc blende structure have good power factors due to their high carrier mobility. In the present study, Zn-doped GaSb (Ga1−xZnxSb, x = 0.001, 0.002, 0.005, and 0.01) samples were fabricated and the thermoelectric (TE) properties of the samples were measured. Hall measurements were conducted to…
The effects of styrene butadiene rubber/virgin acrylonitrile butadiene rubber (SBR/NBRv) blends and styrene butadiene rubber/recycled acrylonitrile butadiene rubber (SBR/NBRr) blends on properties such Fourier transform infrared (FTIR), thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC) wer…
Polypropylene (PP)/zinc oxide (ZnO) nanocomposites were prepared by melt compounding. Prior compounding, surface of the particles were modified with different compatilibizers such as silane and stearic acid. Modification was also done by coating the particles with maleic anhydride grafted styrene-ethylene-butylene-sty…
The previously reported Ni(II) complex, Tp*Ni(κ(3)-BH(4)) (Tp* = hydrotris(3,5-dimethylpyrazolyl)borate anion), which has an S = 1 spin ground state, was studied by high-frequency and -field electron paramagnetic resonance (HFEPR) spectroscopy as a solid powder at low temperature, by UV-vis-NIR spectroscopy in the sol…
Interactions of free-standing gold nanoparticles and hollow graphitized nanofibers in colloidal suspension are investigated, revealing the first example of the controlled arrangement of nanoparticles inside nano-containers, as directed by their internal structure. The ordering is highly effective for small gold nanopa…
When a superhydrophobic (SHPo) surface is fully submerged underwater, the surface becomes wet eventually and cannot recover the SHPo state naturally. In this paper, we fabricate hydrophobic microposts on a hydrophobic nanostructured substrate, i.e., hierarchically structured SHPo surfaces, and investigate their wettin…
Nanocomposites of silane- and alkali-treated bamboo fiber and epoxy resin incorporated with nanoclay were prepared. The possibility of obtaining relatively low dielectric constant (ε) bamboo-epoxy nanodielectrics with improved mechanical properties was demonstrated. Silane coupling agents and mercerization of bamboo m…
A century of diatom research on Lakes Ohrid and Prespa (Macedonia) has yielded 900 different taxonomic entities including species, varieties and unidentified species. This checklist is based on a comprehensive compilation of diatom names sourced from all available published data. The intention is to provide a basis fo…
Remote control: The title reaction is the first example of a catalyzed dehydrogenative cyclization (CDC) of diamine–monoboranes to give cyclic diaminoboranes. The cyclization reaction is strongly dependent on the nature of the substitution pattern at the remote amino group.
The thermoelectric properties of the type-I clathrate Ba8AuxSi46−x (4.10 ≤ x ≤ 6.10) were characterized from 300 to 700 K. Increasing the Au concentration leads to a transition from an n-type (x < 5.43) to a p-type (x ≥ 5.43) electrical conduction. The experimental data are well described by a single-parabolic-…
Switch 'em up: Two-electron oxidation and reduction switches the title complexes between aromatic and antiaromatic character (see picture). The switching is confirmed by 1H NMR and UV/Vis/NIR absorption spectroscopy and by cyclic voltammetry. The structure of the porphyrin–[26]hexaphyrin hybrid tape was elucidated by…
The comparison effect of glycerol and soritol as plasticizing agents on properties of biodegradable polyvinyl alcohol (PVOH)/rambutan skin waste flour (RWF) films were studied. Results showed that the glycerol-plasticized films exhibited higher elongation at break, but lower tensile strength and Young's modulus than s…
Within a certain range of Co content, ferromagnetic Ni–Co–Mn–Ga shape memory alloys undergo martensitic transformation (MT) between ferromagnetic austenite and paramagnetic martensite. This brings about an enlarged magnetization change with respect to the ternary Ni–Mn–Ga, approaching the requirements for magnetic fie…
A series of nickel complexes with nuclearity ranging from Ni(3) to Ni(6) have been obtained by treatment of a variety of nickel salts with the 2-pyridylcyanoxime ligand. The reported compounds have as a common structural feature the triangular arrangement of nickel cations bridged by a central μ(3)-oxo/alkoxo ligand.…
Using a Green’s function method based on an elastic wave equation, the effects of surface roughness and the nanowire-contact interface scattering on phonon thermal conductivity are studied at low temperatures. It is found that the interface geometry between a nanowire and its contacts affects the transmission function…
Raspy crickets (Orthoptera: Gryllacrididae) are unique among the orthopterans in producing silk, which is used to build shelters. This work studied the material composition and the fabrication of cricket silk for the first time. We examined silk-webs produced in captivity, which comprised cylindrical fibers and flat f…
The upper critical field ${\ensuremath{\mu}}_{0}{H}_{c2}({T}_{c})$ of ${\mathrm{Tl}}_{0.58}{\mathrm{Rb}}_{0.42}{\mathrm{Fe}}_{1.72}{\mathrm{Se}}_{2}$ single crystals has been determined by means of measuring the electrical resistivity in both a pulsed magnetic field ($\ensuremath{\sim}\phantom{\rule{-0.16em}{0ex}}\pha…
The unconsolidated sediment of intertidal mudflats constitutes a highly unstable environment, due to continuously changing water levels and currents, as well as temporary exposure to the air. As a consequence, diatoms inhabiting marine intertidal areas are subjected to wide variations in temperature, surface light int…
The fabrication of a p-shell/n-core coaxial nanorod ZnO homojunction light-emitting diode by inexpensive solution method is demonstrated. The p-type conductivity of the ZnO shell arises from the incorporation of potassium while the n-type conductivity of the core is due to unintentional doping.