Materials Literature
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Weight of evidence: Using synchrotron radiation, photo-fragmentation of an intrinsically disordered protein is probed and compared with classical tandem mass-spectrometry activation techniques. It provides excellent sequence coverage allowing the identification of the protein noncovalent binding sites.
The experimentally observed selective guest-induced (olefin-induced) magnetism transition from ferromagnetism (FM) to antiferromagnetism (AFM) on Fe/MOF-74 is investigated using the first principles calculations. We reveal that FM in bare MOF is due to direct exchange interaction between neighboring Fe ions while the…
Protein structure refinement refers to the process of improving the qualities of protein structures during structure modeling processes to bring them closer to their native states. Structure refinement has been drawing increasing attention in the community-wide Critical Assessment of techniques for Protein Structure p…
Optical forces constitute a fundamental phenomenon important in various fields of science, from astronomy to biology. Generally, intense external radiation sources are required to achieve measurable effects suitable for applications. Here we demonstrate that quantum emitters placed in a homogeneous anisotropic medium…
An approach to the synthesis of new regular graft-copolymers polyimide (PI)-graft-polymethacrylic acid is elaborated, including (1) synthesis of multicenter PI macroinitiators, (2) controlled ATRP of tert-butylmethacrylate on the prepared macroinitiators, and (3) protonolysis of tert-butyl ester groups of side chains…
Abstract There are great demands to develop explosives with higher performance accompanied by reduced sensitivities towards external stimuli, higher thermal stability and improved environmental acceptability. This contribution presents modified nitramines, which were investigated by nucleophilic substitution reactions…
Driving benzene round the twist: Azahelicene derivatives were synthesized in high yields by utilizing palladium-catalyzed C-H annulation reactions. Functionalization at the C5 position in 6-azahelicene by using palladium-catalyzed C-H arylation also gave coupling products in good yields. A tandem intra- and intermolec…
MCM‐41‐supported Fenton‐like ionic liquid catalysts were synthesized by the grafting method and applied in the removal of sulfur compounds in model oil. The structure and property of the catalysts were characterized by Fourier transform infrared spectra, X‐ray diffraction, diffuse reflectance spectra, transmission ele…
In this study, we describe the elaboration of multifunctional positively charged polyelectrolyte complex (PEC) nanoparticles, designed to be stable at physiological salt concentration and pH, for effective targeted delivery. These nanoparticles were obtained by charge neutralization between chitosan (CS) as polycation…
A lipophilic protein nanoparticle (LPP) was fabricated by ultrasonication of the soy lipophilic protein (LP), which contains hydrophobic proteins and phospholipids. This LPP (Rh = 136 ± 0.8 nm, ζ-potential = -20 mV, pH 7.0) had an improved dispersibility and acted as an emulsifier. The oil/water (O/W) emulsion stabili…
The properties of hydrolyzed feather keratin (HFK) were compared to those of hydrolyzed wool keratin (HWK) with the aim of developing better ways to utilize feather keratin waste. Amino acid analysis showed that HFK contained more hydrophobic amino acids did than HWK. Although gel permeation chromatography indicated t…
Approximate efficiency of a linear regulator, if the power consumed by the control circuits is negligible, can be expressed by the ratio of Vo/Vin. A very low frequency supercapacitor circulation technique can be combined with commercial low-dropout (LDO) regulator integrated circuits to achieve significantly high end…
In this letter, microwave annealing technology is proposed to reduce thermal budget for the manufacture of transparent conductive oxide thin-film transistor (TFT). With microwave annealing, a nitrogenated amorphous In-Ga-Zn-O (a-IGZO:N) TFT fabricated on glass panel behaves as a carrier mobility of 4.21${\rm cm}^{2}/{…
Kristalle in Bewegung: Bei Bestrahlung mit Licht springen und hüpfen Kristalle der Cobalt-Koordinationsverbindung [Co(NH3)5(NO2)]Cl(NO3) und legen dabei Distanzen zurück, die 102- bis 105-Mal größer als sie selbst sind, um die Spannung abzubauen, die sich in ihrem Inneren aufbaut. Die erste quantitative kinematische A…
EuNi2P2 is known as a heavy fermion compound with an electronic specific heat coefficient γ=100 mJ/(K2 \(\cdot\)mol). We grew single crystals and studied their electronic and magnetic properties by measuring the electrical resistivity, magnetic susceptibility, high-field magnetization, specific heat, and thermal expan…
Experimental demonstration of silicon inverse opal photonic crystals (PhCs) as a wave-optics-based back reflector for polycrystalline silicon solar cells is shown. Using a novel S5 process, crack-free three dimensional PhCs are fabricated, which are free-standing and have good optical properties. An efficiency enhance…
A repetitive control system (RCS) provides good control performance for periodic signals, but it may not satisfactorily reject aperiodic disturbances. Our solution is an equivalent-input-disturbance (EID)-based RCS in which aperiodic disturbances are estimated by an EID estimator and rejected by incorporation of the e…
Spatial light modulation can be used to address specific fiber modes, as required in mode-division multiplexed systems. We theoretically compare phase-only spatial light modulation to a combination of amplitude and phase spatial light modulation in terms of insertion loss and crosstalk for a fiber supporting 11 LP mod…
Liquids with no ions! Raman analysis and quantum calculations suggest that electrically neutral molecular species predominantly exist in an N-methylimidazole and acetic acid equimolar mixture, and that ionic species are rather minor. Nevertheless, the mixture has significant ionic conductivity, and shows "good ionic"…
Bigger is better: Sequential backbone assignments are obtained by NMR spectroscopy for a 1 MDa proteasome complex. The method relies on immobilization of a soluble protein complex by magic-angle spinning. Deuteration and proton detection of exchangeable sites and paramagnetic relaxation enhancement enables exploration…