Materials Literature
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We present the results of magnetization, electron spin resonance (ESR), and nuclear magnetic resonance (NMR) measurements on single-crystal samples of the frustrated $S=1/2$ chain cuprate LiCu${}_{2}$O${}_{2}$ doped with nonmagnetic Zn${}^{2+}$. As shown by the x-ray techniques, the crystals of Li(Cu${}_{1\ensuremath{…
Intermetallic titanium aluminides have evolved into a lightweight alternative to nickel-based superalloys because of their good mechanical properties at elevated temperatures combined with a low density. Potential fields of application include aircraft and automobile engines. Microstructure strongly influences a mater…
Thermoluminescence (TL) and optically stimulated luminescence (OSL) are the well-known phenomena used for passive methods of dose measurements. TL and OSL detectors are frequently used in the dosimetry of cosmic radiation in space and of particle radiotherapy beams. However, the relative TL/OSL efficiency, which is de…
Zielgerichtet: Das Cucurbit[7]uril-Derivat 1, das einen kovalent gebundenen Biotinliganden trägt, ermöglicht den gezielten Transport von Oxaliplatin in Form des 1⋅Oxaliplatin-Komplexes zu Krebszellen. Das System führt zu einer höheren Cytotoxizität als Oxaliplatin alleine.
The yeast protein Zim17 belongs to a unique class of co-chaperones that maintain the solubility of Hsp70 proteins in mitochondria and plastids of eukaryotic cells. However, little is known about the functional cooperation between Zim17 and mitochondrial Hsp70 proteins in vivo . To analyze the effects of a loss of Zim1…
Carbon supported Pt–Ni nanoparticles (NPs) electrocatalysts with nominal Pt/Ni atomic ratios of 3:1, 2:1, and 1:1, denoted as Pt 3 Ni/C, Pt 2 Ni/C, and Pt 1 Ni/C, respectively, were obtained by a modified polyol process. The structure of Pt n Ni/C ( n = 3, 2, 1) electrocatalysts was studied by using an X-ray absorptio…
We demonstrate both theoretically and experimentally that a vertical-cavity surface-emitting laser with an overlay of cholesteric liquid crystal (CLC-VCSEL) becomes a coupled system with different spectral, threshold and polarization characteristics from those of the stand-alone VCSEL. Due to the existence of a band g…
An all atomic, non-restrained molecular dynamics (MD) simulation in explicit water was used to study in detail the structural features of the highly conserved glycine-rich loop (GRL) of the α-subunit of the yeast mitochondrial processing peptidase (MPP) and its importance for the tertiary and quaternary conformation o…
N,N'-Diphenyl-N,N'-bis(3-methylphenyl)-(1,1'-biphenyl)-4,4'-diamine (TPD) was demonstrated to be suitable for stimulated emission in doping and nondoping planar waveguide structure, but the mechanism for its lasing is of ambiguity. With the aim of providing a microsscopic picture for its lasing, we performed a combine…
A fascinating core-shell-structured graphitic carbon material composed of ordered microporous core and uniform mesoporous shell is fabricated for the first time through a site-specific chemical vapor deposition process by using a nanozeolite@mesostructured silica composite molecular sieve as the template. The mesostru…
Amyloid oligomers are considered to play essential roles in the pathogenesis of amyloid-related degenerative diseases including type 2 diabetes. Using an explicit solvent all atomic MD simulation, we explored the stability, conformational dynamics and association force of different single-layer models of the full-leng…
In the current work, beach sand (BS) and beach sand coated with polyaniline (BS/Pani) were used as an efficient green adsorbent for dye removal from aqueous solutions. Methylene blue (MB) was chosen as a test probe for the evaluation of the selected adsorbents for dye removal efficiency. The adsorption experiments wer…
Direct observation of an unexpected product from excited state fusion of two excited triplet states in platinum octaethylporphyrin is reported. Transient spectroscopy was used to identify the product as a metal centered (d, d) state that decays slowly compared with the rate of fusion. The reaction was demonstrated to…
*This paper is declared a work of the U.S. Government and is not subject to copyright protection in the United States. The emergence of bismaleimide composites has fulfilled some of the increasing demand for higher temperature performance aeronautics and space exploration vehicles. This study examines and evaluates th…
We present a Grand Canonical Monte Carlo simulation study of argon adsorption at 87 K in slit shape mesopores with nonuniform separation between the pore walls. We show that different wall curvatures can generate diverse hysteresis loop shapes, simply by tuning the wall curvature and hence the variation of width along…
CONTEXT: The excellent gelling and safety profiles of alginic acid combined, however, with drawbacks of its ionotropically crosslinked beads (i.e. their quick release of loaded drugs) prompted us to chemically modify alginic acid. OBJECTIVE: Alginic acid was chemically conjugated with four amines of varying hydrophili…
A detailed characterization of a close synthetic model of the [2 Fe]H subcluster in the [FeFe] hydrogenase active site is presented. It contains the full primary coordination sphere of the CO-inhibited oxidized state of the enzyme including the CN(-) ligands and the azadithiolate (adt) bridge, [((μ-SCH2 )2 NR)Fe2 (CO…
The intermetallic microstructure in two representative regions of the cross section, the corner and the core, of a cast‐to‐shape tensile specimen was studied. Available 3D data of the intermetallic, obtained with focused dual ion beam tomography, were incorporated into a finite element code to simulate the deformation…
KAERI (Korea Atomic Energy Research Institute) has been operating an integral effect test facility, the Advanced Thermal–Hydraulic Test Loop for Accident Simulation (ATLAS), for transient and accident simulations of advanced Pressurized Water Reactors (PWRs). Using ATLAS, a high-quality Integral Effect Test (IET) data…
Pores in ultra-low- k carbon-doped silicon oxide (SiOCH) film have been a serious problem because they produce fragile film strength, with the film incurring damage from integration and diffusion of Cu atoms in thermal annealing. To address this problem, we developed a practical large-radius neutral-beam-enhanced chem…