Materials Literature
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Abstract An investigation of the influence of different types of carbon black on fatigue crack‐growth behavior was undertaken. Fatigue tests were carried out on edge‐notched specimens under cyclic tension loading. A power‐law dependency between the crack‐growth rate and tearing energy was obtained. Natural rubber (NR)…
Fluorescent silica nanoparticles decorated with a responsive shell, a mixed polymer brush, were synthesized. Specifically, a poly(2-vinylpyridine), P2VP, and poly(ethylene glycol), PEG, binary polymer brush was synthesized on silica nanoparticles via the "grafting to" technique. The selection of the components (PEG an…
We use inelastic neutron scattering to show that for the optimally electron-doped ${\text{BaFe}}_{1.9}{\text{Ni}}_{0.1}{\text{As}}_{2}$ $({T}_{c}=20\text{ }\text{K})$ iron arsenide superconductor, application of a magnetic field that partially suppresses the superconductivity and superconducting gap energy also reduce…
The structure and magnetic properties of nanoporous zeolite-templated carbon (ZTC) and its guest-adsorbed systems are investigated using potassium and bromine as guest species. In ZTC, nanopores formed by a three-dimensional curved-graphene network, whose structure is transcribed from the zeolite nanopore structure, a…
Abstract Single‐walled carbon nanotube (SWNT)/cellulose nanocomposite films were prepared using N ‐methylmorpholine‐ N ‐oxide (NMMO) monohydrate as a dispersing agent for the acid‐treated SWNTs (A‐SWNTs) as well as a cellulose solvent. The A‐SWNTs were dispersed in both NMMO monohydrate and the nanocomposite film (as…
Abstract Triblock copolymers of monomethoxy poly(ethylene glycol) (mPEG) and ε‐caprolactone (CL) were prepared with varying lengths of poly(ε‐caprolactone) (PCL) compositions and a fixed length of mPEG segment. The molecular characteristics of triblock copolymers were characterized by 1 H NMR, gel permeation chromatog…
${\text{CaFe}}_{2}{\text{As}}_{2}$ single crystals under uniaxial pressure applied along the $c$ axis exhibit the coexistence of several structural phases at low temperatures. We show that the room-temperature tetragonal phase is stabilized at low temperatures for pressures above 0.06 GPa, and its weight fraction atta…
A zinc oxide (ZnO) nanowire (NW) photodetector was fabricated with a simple method by bridging the gap of interdigitated gallium-doped ZnO pattern deposited on a silicon oxide (SiO2) thin film with interlaced ZnO NWs. With an incident wavelength of 375 nm, it was found that measured responsivity was 0.055 A/W for the…
We synthesized a photoswitchable fluorescent probe incorporating a BODIPY fluorophore and an oxazine photochrome within the same molecular skeleton. The selective excitation of the BODIPY component at visible wavelengths is accompanied by the emission of light in the form of fluorescence. However, the illumination of…
Density-functional theory calculations of the xenon incorporation energies in point defects in urania have been done in order to fit empirical potentials. With this set of parameters, we have considered the incorporation of xenon in small and extended defects such as planar interstitials, grain boundaries, faceted, an…
Abstract The main objectives of the study were (i) to quantitatively describe the nonlinear viscoelastic creep of model nanocomposites, (ii) to construct the generalized compliance curve by means of the tensile compliance vs. internal time superposition for a pseudo iso‐free‐volume state, and (iii) to predict the comp…
Crystalline spherulitic fiber networks are commonly observed in polymeric and supramolecular functional materials. The elasticity of materials with this type of network is low if interactions between the individual spherulites are weak (mutually exclusive). Improving the elasticity of these materials is necessary beca…
The compounds of the title series have been prepared from citrate precursors under moderate pressure conditions (P = 2 GPa) and 1000 degrees C in the presence of KClO(4) as oxidizing agent. The crystal structures are cubic, space group Im3 (No. 204); the unit cell parameters linearly vary from a = 7.3272(4) A (R = La)…
Abstract Phenolic foam with nanometer pore structure and high strength was prepared by using a novel foaming method of phenol–formaldehyde novolac resin solution under pressure. Pore structure and the effects of pressure and resin concentration on it were investigated. Results showed that the mean pore size decreases…
Abstract In this investigation, our aim was to evaluate the performance of a controlled release of malathion pesticide loaded in microspheres of pure polymers of poly(3‐hydroxybutyrate) and poly(ε‐caprolactone) (PCL) and of blends of these polymers with compositions of 70/30, 80/20, 90/10, 95/5, and 97/3 w/w. Microsph…
Sulfur-containing mono- or bidentate types of ligands, usually form square planar Ni((II))S(4) complexes. However, it has already been established that the bidentate L(-) dithioimidodiphosphinato ligands, [R(2)P(S)NP(S)R'(2)](-), R, and R' = aryl or alkyl, can afford both tetrahedral and square planar, NiS(4)-containi…
A novel competitive binding assay was implemented to monitor the binding of a redox inactive substrate to a redox inactive metallacrown host based on its competition with ferrocene carboxylate (FcC(-)) using cyclic voltammetry (CV). First, the binding of FcC(-) to Ln(III)[15-MC(Cu(II),N,L-pheHA)-5] (LnMC) hosts was ch…
PURPOSE: Non-Hodgkin's lymphoma (NHL) is the sixth most common cause of cancer death in the U.S. Pegylated liposomal doxorubicin (PLD) is a liposomal form of doxorubicin (DXR) that causes less toxicity than does free DXR. To further enhance efficacy and decrease toxicity, we conjugated HB22.7, an anti-CD22 monoclonal…
Günstige Lage: Ultradünne Oxidfilme auf Metallen können die katalytische Aktivität stark erhöhen, z. B. bei der CO-Oxidation an einem FeO(111)-Film auf Pt(111). Unter den Reaktionsbedingungen lagert sich der zweilagige FeO-Film zu einem dreilagigen OFeO-Film um (siehe Bild). Neben experimentellen Befunden zur Struktur…
Site-specific drug delivery and targeting attracts much research interest from both academia and industry, but because of the many challenges faced in the development of these systems, only a handful of targeted therapies have successfully made it into clinical practice. Focusing on the delivery technologies that util…