Materials Literature
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The thermoelectric properties of AlGaN and InGaN semiconductors are analyzed. In our analysis, the thermal conductivities, electrical conductivities, Seebeck coefficients, and figure of merits (Z*T) of AlGaN and InGaN semiconductors are computed. The electron transports in AlGaN and InGaN alloys are analyzed by solvin…
Abstract Poly(ethylene terephthalate) (PET) had been compounded with antibacterial materials for preparing antibacterial masterbatch using a twin‐screw extruder. Composite antibacterial PET fibers were prepared using the antibacterial masterbatch and pure PET resin by high‐speed melt‐spinning device, with spinning rat…
Abstract This article deals with the effect of cellulosic fiber from commercially available writing paper, bleached kraft pulp, and commercially available rice flour on the foaming of polyurethane based on polyol derived from soy bean oil. The presence of cellulosic materials was observed to have a notable influence o…
Recently, controlled growth of branched hierarchical crystals has been the focus of intensive research for their novel properties and potential applications. The key to synthesizing the branched nanostructures is to induce and control secondary nucleation on primary crystals. The metal catalysts and organic structure-…
Abstract Nanoparticles arise from a wide variety of natural and man‐made sources and have a diverse array of biological, chemical, and physical properties. The toxicity of these particles can be roughly divided into two categories: 1) the enhanced delivery of toxic agents 2) toxicity induced the properties of the part…
The purpose of this study is to explore the feasibility of using Surface Enhanced Raman Spectroscopy (SERS) to image the distribution of Epidermal Growth Factor Receptor (EGFR) in cells. To accomplish this task, 30 nm gold nanoparticles (AuNPs) tagged with antibodies to EGFR (10<sup>12</sup> per ml) are incubated with…
We report a method for improving the sensitivity of label-free optical biosensors based on in-situ synthesis of DNA probes within porous silicon structures. The stepwise attachment of up to 15mer probes inside 30 nm mesopores was accomplished through a series of phosphoramidite reactions. In this work, a porous silico…
A general synthesis strategy to prepare metal nanostructures by self-assembly was proposed by molecular dynamics (MD) simulation. In this simulating synthesis strategy, the metal nanostructures were generated by the self-assembly of the amorphous nanoparticles with the attractive forces of the nanoparticle−nanoparticl…
Colloidal synthesis of cerium-doped lanthanum fluoride nanocrystals is reported. The nanocrystals were characterized by transmission electron microscopy, energy-dispersive X-ray spectroscopy, steady-state UV-VIS optical absorption and photoluminescence (PL) spectroscopy, and by PL lifetime measurements. Cerium doping…
Hyperthermia, as an independent modality or in combination with standard cancer treatments such as chemotherapy and radiation, has been established in vitro and in vivo as an effective cancer treatment. However, despite efforts over the past 25 years, such therapies have never been optimized or widelyaccepted clinical…
Abstract A novel block mercaptosilane (3‐benzothiazolthio‐1‐propyltriethoxylsilane) (Silane‐M) was synthesized and characterized by Fourier transform infrared spectra, 1 H nuclear magnetic resonance, and elemental analysis. Styrene–butadiene rubber (SBR)/silica composites were prepared with Silane‐M, and its effect on…
The magnetic transition has been studied in Mn1.1Fe0.9P0.8Ge0.2 by magnetic measurements and F57e Mössbauer spectroscopy. The alloy crystallizes in the hexagonal Fe2P-type structure with lattice constants of a=6.0476(4) Å and c=3.4766(7) Å. Both bulk magnetization measurements and Mössbauer spectroscopy show that the…
Laser processes have penetrated into the crystalline silicon solar cell production market some time ago already, but are still far from reaching the status they probably will achieve one day. As the largest fraction of state-of-the-art production lines still produces conventional screen-printed aluminum back surface f…
Valence-band structures of the polar ZnO surfaces, i.e., ZnO(0001)-Zn and $\text{ZnO}(000\overline{1})\text{-O}$, have been investigated by angle-resolved photoelectron spectroscopy utilizing synchrotron radiation. On the $(1\ifmmode\times\else\texttimes\fi{}1)$ O-terminated surface, surface-localized states forming d…
We report the structural and transport properties of the Bi-substituted Co2MnO4 multiferroic materials. Samples synthesized using the solid state reaction route with the composition BixCo2−xMnO4 (&lt;0x&lt;0.3) exhibit a single phase behavior with a cubic spinel structure (space group Fd3m). The lattice parame…
It is established that heat can enhance the effect of radiation cancer treatment. Due to the ability to localize thermal energy using nanoparticle hyperthermia, as opposed to other, less targeted, hyperthermia modalities, it appears such enhancement could be accomplished without complications normally associated with…
Despite its appeal, real and simulated glass forming systems do not undergo an ergodic-nonergodic (ENE) transition. We reconsider whether the fluctuating nonlinear hydrodynamics (FNH) model for this system, introduced by us in 1986, supports an ENE transition. Using nonperturbative arguments, with no reference to the…
Crystallization of hard spheres interacting with a square well potential was investigated by numerical simulations using so-called Brownian cluster dynamics. The phase diagram was determined over a broad range of volume fractions. The crystallization rate was studied as a function of the interaction strength expressed…
Fourier transform ion cyclotron resonance mass spectrometry has been employed to study the reactions of gas-phase cationic cobalt clusters, Co(n) (+) (n=4-30), with nitric oxide, NO, and nitrous oxide, N(2)O, under single collision conditions. Isolation of the initial cluster permits detailed investigation of fragment…
Abstract In this paper we consider magnetic properties of single‐molecule magnets (SMMs). The main focus, however, is on possible mechanisms of magnetic switching of SMMs. One mechanism considered is the phenomenon of macroscopic quantum tunneling of magnetization (QTM) in an external time‐dependent magnetic field. Wh…