Materials Literature
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Volume x-ray gratings consisting of a multilayer coating deposited on a blazed substrate can diffract with very high efficiency, even in high orders if diffraction conditions in-plane (grating) and out-of-plane (Bragg multilayer) are met simultaneously. This remarkable property, however, depends critically on the abil…
Abstract A kind of novel n = 2 phthalonitrile oligomer containing biphenyl ethernitrile (2PEN‐BPh) had been firstly synthesized from 2,6‐dichlorobenzonitrile, 4,4′‐biphenol and 4‐nitrophthalonitrile via solution reaction, and the 2PEN‐BPh was characterized by FTIR, 1H‐NMR spectra which exhibited that cyano groups and…
Thermoresponsive nanohydrogels cross-linked by gold nanoparticles (AuNPs) were prepared by 1,3-dipolar cycloaddition reactions and in situ reversible addition-fragmentation chain-transfer (RAFT) polymerization. In order to synthesize thermoresponsive nanohydrogels, AuNPs decorated with azide groups (AuNPs-N(3)) were p…
Molecular dynamics simulations using fully atomistic models were conducted to investigate gas transport mechanism and its connection to the free volume distribution and morphology in polyvinyl chloride (PVC) and in PVC modified with 4-fluorothiophenol. The influence of both, modification degree and temperature on diff…
Abstract Telomerization of common petrochemical 1,3‐dienes such as butadiene and isoprene have long been successful with different nucleophiles; however, the telomerization of the C10 hydrocarbon myrcene was not known until now. Herein, the first telomerization of the monoterpene myrcene with diethylamine is discussed…
Oxygen, oxygen, everywhere! Poor sensitivity has hindered the development of solid-state 17O NMR spectroscopy as a practical technique for the structural elucidation of protein complexes. However, this has now changed and it has been demonstrated that multinuclear 17O, 27Al, 13C NMR parameters can be used to aid struc…
Toxic CO concentrations can be detected by a very clear induced color change of the dirhodium complex 1 (see scheme) upon binding of CO, as reported by Esteban et al. Other atmospheric compounds such as H2O, CO2, O2, CH4, SO2, NOx, and volatile organic compounds do not interfere with the CO sensing.
Novel cell-based and gene therapies represent promising approaches for the treatment of incurable diseases, including cancer. Following the success of the hematopoietic stem cell-based transplantation, other populations of adult progenitor cells, including mesenchymal stem cells (MSCs), have been identified as powerfu…
We present an extensive numerical study of the critical behavior of dimer models in three dimensions, focusing on the phase transition between Coulomb and crystalline columnar phases. The case of attractive interactions between parallel dimers on a plaquette was shown to undergo a continuous phase transition with crit…
We demonstrate good optical quality TiO(2) thin films grown by atomic layer deposition at 120 degrees C. The optical properties were studied using spectroscopic ellipsometry and prism coupling methods. The refractive index was 2.27, and the slab waveguide propagation loss was less than 1dB/cm at 1.53microm. A high qua…
Endothelial cells (ECs) represent a major source of actively secreted adenosine triphosphate (ATP). Natural killer (NK) cells can mediate vascular injury in several pathologic conditions, including cytomegalovirus infection and vascular leak syndrome. We studied NK-cell expression of P2 receptors and the role of these…
The adsorption and reaction of tetrakis(dimethylamido)hafnium (TDMAH) on hydrogen terminated Si(100) were studied by using in situ attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), transmission IR, and quadrupole mass spectrometry (Q-MS). Surface and gas phase reactions were investigated…
Better together: A novel hybrid N-heterocyclic carbene (NHC) palladium complex, integrating a totally inorganic and polyanionic decatungstate unit, has been synthesized following a convergent strategy. The interplay of the Pd binding domains with the inorganic scaffold is instrumental in accessing multi-turnover catal…
Broad dispersions of operation parameters are generally observed with continuous resistive switching. In this letter, we explore a prototype resistive random access memory (RRAM) device for switching uniformity improvement. Compared with Al/CuxO/Cu structure, by introducing a thin phase-change Ge2Sb2Te5(GST) film betw…
The double thermosensitive and narrow dispersed PNIPAm 110 -PEO 100 -PPO 65 -PEO 100 -PNIPAm 110 pentablock terpolymer was synthesized by the typical atomic transfer radical polymerization (ATRP) method with N -isopropylacrylamide (NIPAm) as the monomer and modified poly(ethylene oxide) 100 −poly(propylene oxide) 65 −…
The results of a comprehensive characterisation study of different phase transformations that take place upon heating and cooling in some low carbon, 9 wt-%Cr steels with varying concentrations of microalloying additions are presented in this paper. The steels investigated include: standard 9Cr–1Mo grade, V and Nb add…
BACKGROUND: Edible coatings may extend fresh-cut fruit storage by preventing moisture loss and decreasing gas exchange. This study evaluated the effect of an antibrowning dip (calcium ascorbate, citric acid and N-acetyl-L-cysteine), followed or not with carboxymethylcellulose (CMC) or carrageenan coatings on quality o…
Abstract Three kinds of red electroluminescent (EL) polymers based on polyfluorene as blue host and 2,1,3‐benzothiadiazole derivatives with different emission wavelengths as red dopant units on the side chain are designed and synthesized. The influence of the photoluminescence (PL) efficiencies and emission wavelength…
The interior permanent-magnet (IPM) synchronous motor is characterized by a high rotor anisotropy. Such an anisotropy is the cause of a high harmonic content of the air-gap flux density distribution, almost independent of the main flux. As a consequence, there are fluctuations of the flux density in the stator iron an…
Abstract In this study, the phenomenon of light trapping in Si solar cells coated with metal (Au) and dielectric (TiO2, SiO2) nanoparticles (NPs) is systematically investigated. In contrast to previous reports, herein it is proposed that the photocurrent enhancement of solar cells should be attributed to the limited a…