Materials Literature
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Our recently proposed method for automatic detection, calibration and evaluation of Debye-Scherrer ellipses using pattern-recognition techniques and advanced signal filtering was applied to the two-dimensional powder diffraction data of the non-ferroelectric, non-centrosymmetric non-linear optical (NLO) compound alpha…
The adsorption of CO at 300 K on a reduced (H 2, 713 K) 1% Au/Al 2 O 3 solid leads to the formation of a linear CO species adsorbed on the Au particles (denoted L1) characterized by an IR band at 2098 cm −1 that slightly shifts to higher wavenumbers with the decrease in the coverage. For adsorption pressures P a > 5 k…
Structural studies from X-ray and high-resolution neutron powder diffraction data collected on deuterated and nondeuterated BaCe 0.4 Zr 0.4 Sc 0.2 O 2.9 · x (D 2 O) have been carried out. Although X-ray diffraction suggested that a sample of the nominal composition was single phase cubic, neutron diffraction showed th…
An effective method for designing wave shape transformers (WSTs) is investigated by adopting the coordinate transformation theory. Following this method, the devices employed to transform electromagnetic (EM) wave fronts from one style with arbitrary shape and size to another style, can be designed. To verify this met…
Cage-like silica hollow spheres loaded with superparamagnetic iron oxide nanoparticles incorporated in their macroporous shells are synthesized in a facile manner through a one-step oil-in-diethylene glycol (DEG) microemulsion route.
Hydride transfer from dihydronicotinamide adenine dinucleotide (NADH) analogues to trans-dioxomanganese(v) porphyrin complexes proceeds via proton-coupled electron transfer, followed by rapid electron transfer.
Graphene bilayers can condense into a state with spontaneous interlayer phase coherence that supports dissipationless counterflow supercurrents. Here, we address the influence of disorder on the graphene bilayer mean field and Kosterlitz-Thouless critical temperatures and report on a simple criteria for the survival o…
The delivery of a full plasmid, encoding the green fluorescent protein gene into African monkey kidney (Vero3) cells, was successfully achieved using nanobiocomposites based on layered double hydroxides. This demonstrated the potential of using the system as an alternative DNA delivery vector. Intercalation of the cir…
This paper demonstrates a new and simple approach to fabricate nanoporous structure on gold thin films (∼1.5 μm) via electrochemical alloying and dealloying reactions in ZnCl 2 /DMSO electrolyte. The relevant parameters affecting the formation of nanoporous structure in the alloying/dealloying process in organic elect…
Ss-LrpB is an Lrp-like transcriptional regulator from Sulfolobus solfataricus. Previously, in vitro binding of Ss-LrpB to the control region of its own gene has been extensively studied. However, nothing was known about the physiological role of this regulator yet. Here, using the knowledge of the DNA-binding sequence…
We report the development of a realistic molecular model for mesoporous silica SBA-15, which includes both the large cylindrical mesopores and the smaller micropores in the pore walls. The methodology for modeling the SBA-15 structure involves molecular and mesoscale simulations combined with geometrical interpolation…
Band gap photoluminescence (PL) of single-walled carbon nanotubes (SWCNTs) encapsulating C 60 fullerenes (nanopeapods) is examined over a wide range of diameters (∼1.25−1.55 nm). The encapsulated fullerenes induce characteristic PL peak shifts that strongly depend on the tube diameter ( d t ) and the “2 n + m ” family…
SrAl(2)O(4):Eu(2+), Dy(3+) polynary complex nanotubes with long afterglow, templated by surfactant assemblies, were successfully synthesized by a homogeneous coprecipitation method, followed by heat treatment in a reducing atmosphere.
Using a low temperature, organic-free hydrothermal technique, single-crystalline barium polyborate Ba3B6O9(OH)6 (BBOH) nanorods were synthesized. It was found that β-BaB2O4 (BBO) nanospindles can be achieved by annealing the BBOH nanorods at a relatively low temperature of 810 °C. Transmission electron microscopy (TEM…
The adsorption of CO on nanosized gold particles deposited on a cerium oxide substrate is strongly influenced by the roughness and concentration of oxygen vacancies of the CeO x substrate surface. Literature showed that Au nucleates at step edges on oxidized samples. For oxidized samples we found that the Au dispersio…
Peptides with specific binding affinity to inorganic materials bridge biological systems with synthetic inorganic materials. Many inorganic-binding peptides were isolated using combinatorial peptide libraries without a good understanding of the interaction mechanism, which thus hinders the practical application of the…
A label-free, homogeneous, and sensitive fluorescence "turn-on" approach is designed to rapidly detect protease using serine functionalized polythiophene (POWT). The fluorescence of POWT solution containing bovine serum albumin (BSA) as substrate is efficiently quenched by Cu2+ ions through coordinate interaction with…
Fixed chirality: The treatment of cyclooctapyrroles (see picture) with a metal source with optically active carboxylate or amine ligands leads to enantioselective metalation to give stereochemically stable helical mononuclear and dinuclear complexes without a chiral auxiliary. The helicity of the dicopper complex was…
Lead‐free potassium sodium niobate‐based piezoelectric ceramics (1− x )(Na 0.5 K 0.5 )NbO 3 – x BiScO 3 (KNN–BS) ( x =0∼0.05) have been prepared by an ordinary sintering process. Single perovskite phase of KNN–BS exhibits an orthorhombic symmetry at x <0.015 and pseudocubic symmetry at x >0.02, separating by a M…
Abstract An important analytical application of x‐ray photoelectron spectroscopy is the possibility of determining the overlayer thickness in the nanometer range. The relevant procedure should be based on a realistic theoretical model relating the photoelectron signal intensities, measured for the overlayer and for th…