Materials Literature
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The composite of different semiconductor nanoparticles may facilitate the charge separation and transfer because the difference in the band edge positions creates the potential gradient at the composite interface. For this purpose, the CdS–TiO 2 –WO 3 ternary hybrid was successfully synthesized and characterized for t…
We present a scaling formula for size-dependent viscosity coefficients for proteins, polymers, and fluorescent dyes diffusing in complex liquids. The formula was used to analyze the mobilities of probes of different sizes in HeLa and Swiss 3T3 mammalian cells. This analysis unveils in the cytoplasm two length scales:…
By introducing tail states into a continuum drift diffusion model, we are able to self-consistently reproduce the experimental voltage-dependent carrier concentration, the current–voltage curve, and the nongeminate recombination prefactor as measured by transient photovoltage (TPV) measurements of poly-3-hexylthiophen…
In this work, we demonstrate a facile one-pot glucose-mediated hydrothermal method for the synthesis of ferric oxyhydroxide (FeOOH) rodlike nanoparticles. It is found that the presence of glucose not only facilitates the formation of FeOOH nanorods but also gives rise to a uniform, glucose-derived, carbon-rich polysac…
ADVERTISEMENT RETURN TO ISSUEPREVReviewNEXTIon and Molecular Recognition by Lower Rim 1,3-Di-conjugates of Calix[4]arene as ReceptorsRoymon Joseph and Chebrolu Pulla Rao*View Author Information Bioinorganic Laboratory, Department of Chemistry, Indian Institute of Technology, Bombay, Mumbai 400 076, IndiaPhone: +91 22…
Bioactivity of Escherichia coli bacteria (as a simple model for microorganisms) and interaction of them with the environment were controlled by their capturing within aggregated graphene nanosheets. The oxygen-containing functional groups of chemically exfoliated single-layer graphene oxide nanosheets were reduced by…
The mechanical characteristics and the infrared imaging of stress-induced martensite transformation developing in TiNi shape memory alloy (SMA) subjected to tension in various conditions with respect to the SMA austenite finish parameter have been presented. Based on the mechanical curves and their related temperature…
A side-chain liquid crystalline polyurethane (LCPU) based on NCO- terminated polybutadiene and bi-phenol has been synthesized. The characterization of LCPU samples was done using gel permeation chromatography, scanning electron microscopy, differential scanning calorimetry, thermogravimetry, and polarized optical micr…
Abstract A simple‐cubic lattice of identical, magnetodielectric spheres exhibiting double‐negative (DNG) behavior is analyzed.An analytic expression for the threshold loss angle δth of the spheres, above which DNG behavior is extinguished, is derived by utilizing the Möbius transformation. The formula is valid for eit…
Abstract Most of the recent research on electromagnetic absorbers at terahertz (THz) frequencies is focused on metamaterials based absorber, which provides high absorptivity of electromagnetic (em) radiations in narrow frequency band and tailoring of em response of materials. Under this work, we have also attempted th…
Rheological responses of hydrophobic fumed silica powders, whose surface silanol groups were modified by hexadecane, suspended in 1,4-dioxane at lower silica concentrations than 6.8 vol% have been investigated as a function of the silica concentration. Transient shear stress behavior before attaining the steady-state…
Cathodic current trends on stainless steel samples with different surface percentages covered by biofilm and potentiostatically polarized in natural seawater were studied under oxygen concentration changes, temperature increases, and additions of enzymic inhibitors to the solution. The results showed that on each surf…
This report describes an investigation into the generation of fiber length distributional function using a limited number of length measurements. Based on the experimental data, the correlation between fiber length statistics (the calculated mean value and variance) and length measures (tested short fiber content, spa…
We report on a $c$-axis polarized optical measurement on a Ba${}_{0.67}$K${}_{0.33}$Fe${}_{2}$As${}_{2}$ single crystal. We find that the $c$-axis optical response is significantly different from that of high-${T}_{c}$ cuprates. The experiments reveal an anisotropic three-dimensional (3D) optical response with the abs…
A special cavity based on effective near-zero-index paired structures containing ɛ-negative and μ-negative materials is realized by using composite right- or left-handed transmission lines. When an artificial magnetic "atom" is put into the cavity, unusual Rabi-type splitting appears because of the strong coupling bet…
Nonlinear optical imaging is a powerful method for observing bulk and interfacial phenomena in time and space. Here, we present a step-by-step description of how to carry out second harmonic generation imaging with a kHz amplifier laser system and demonstrate its applicability for SHG microscopy studies of highly size…
Two high molecular weight (MW) isotactic polypropylene (i-PP) samples, one containing a small amount of rr stereodefects denoted R1 and one conventional, commercial i-PP denoted S1, were used to grow single crystals in thin films at high temperatures ( T x = 145 °C for R1, T x = 155 °C for S1). Elongated α 2 -form lat…
The thermo-mechanical and tensile properties of multiwalled carbon nanotube (MWCNT)/epoxy composite samples were evaluated by performing dynamic-mechanical thermal analysis (DMTA) and tensile tests. The composite samples were fabricated by sonication and a cast molding process. The results indicated that the addition…
Crystalline nanosized particles of clathrate-II phases K(x)Ge(136) and Na(x)Si(136) were obtained from a dispersion of alkali metal tetrelides in ionic liquids based on DTAC/AlCl(3), which were slowly heated to 120-180 °C. The nanoparticles are bullet-shaped with typical dimensions of about 40 nm in width and 140-200…
We performed visualization of the oxygen diffusion path in oxidized and reduced BaTiO 3 ceramics by utilizing an ion-imaging technique. The oxygen tracer diffused quickly from the surface up to the grain boundary, and then behaved as discontinuous steps at the grain boundary. The grain boundary acted as a blocking lay…