Materials Literature
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Embedded germanium nanocrystals (NCs) in a silica host matrix are theoretically analyzed to identify their third-order bound-state nonlinearities. A rigorous atomistic pseudopotential approach is used for determining the electronic structure and the nonlinear optical susceptibilities. This study characterizing the two…
By molecular dynamics simulations, we have studied the enhanced heating process of salty ice and water by the electric field of applied microwaves at 2.5 GHz, and those in the range 2.5-10 GHz for the frequency dependence. We show that water molecules in salty ice are allowed to rotate in response to the microwave ele…
This paper reports a systematic study on the relationship between surface structure and wetting state of ordered nanoporous alumina surface. The wettability of the porous alumina is dramatically changed from hydrophilicity to hydrophobicity by increasing the hole diameter, while maintaining the hole interval and depth…
The transport properties of magnetic tunnel junctions with different (110)-textured Heusler alloy electrodes such as Co2MnSi, Co2FeSi or Co2Mn0.5Fe0.5Si, AlOx barrier, and Co–Fe counterelectrode are investigated. The bandstructure of Co2Mn1−xFexSi is predicted to show a systematic shift in the position of the Fermi en…
The localized surface plasmon resonance (LSPR) of Al nanoparticles fabricated by nanosphere lithography (NSL) was examined by UV−vis extinction spectroscopy and electrodynamics theory. Al triangular nanoparticle arrays can support LSP resonances that are tunable throughout the visible and into the UV portion of the sp…
Obtaining insight into microscopic cooperative effects is a fascinating topic in condensed matter research because, through self-coordination and collectivity, they can lead to instabilities with macroscopic impacts like phase transitions. We used femtosecond time- and angle-resolved photoelectron spectroscopy (trARPE…
The crystal structure of LnFeAsO$_{1-y}$ (Ln = La, Nd) has been studied by the powder neutron diffraction technique. The superconducting phase diagram of NdFeAsO$_{1-y}$ is established as a function of oxygen content which is determined by Rietveld refinement. The small As-Fe bond length suggests that As and Fe atoms…
We introduce the effective Hamiltonian which describes e g electrons in doped bilayer La 2−2 x Sr 1+2 x Mn 2 O 7 manganites and study magnetic and charge order using correlated wavefunctions. The Hamiltonian includes: the kinetic energy, the crystal field splitting between x 2 − y 2 and 3 z 2 − r 2 orbitals, on-site i…
Montmorillonite (MMT) clay was modified using the new modifier butyl acrylate resin. The new modified MMT have better thermal stability in comparison with butyl acrylate. The newly modified MMT mixed with polyurethane (PU) and formed a new nanocomposite PU formulation, and the structure has been proven by atomic force…
particle systems: global shear versus random local forcing Elisabeth Agoritsas -Stretching and folding analysis of fluid based on covariance method Zeming Wei and Boxuan
Abstract Peroxidase‐catalyzed template‐guided polymerization of aniline in the presence of γ‐ alumina nanosheet (NS) particles have been carried out in aqueous media and γ‐Al 2 O 3 /PANI nanocomposite was obtained. The polymerization of aniline occurred in aqueous solution in the presence of SPS (sulfonated polystyren…
The magnetic properties of the single-crystalline orthoferrites TbFeO3 and ErFeO3 were investigated by using a vibrating sample magnetometer (VSM). Both ferrites exhibit weak ferromagnetism with the maximum saturated moment being 0.125 and 0.054 mu(B)/Fe for TbFeO3 and ErFeO3, respectively. We confirmed the spin reori…
MurD (UDP-N-acetylmuramoyl-L-alanine:D-glutamate ligase), a three-domain bacterial protein, catalyses a highly specific incorporation of D-glutamate to the cytoplasmic intermediate UDP-N-acetyl-muramoyl-L-alanine (UMA) utilizing ATP hydrolysis to ADP and P(i). This reaction is part of a biosynthetic path yielding bact…
Abstract Micro‐tubular solid oxide fuel cells (SOFCs) have high thermal stability and higher volumetric power density, which are considered to be ideal features for portable power sources and auxiliary power units for automobile. Here, we report a new stack design using anode supported micro‐tubular SOFCs with 2 mm di…
The challenges in engineering bone scaffolds reflect the complexity of bone as an organ. The organic-inorganic hybrid system design aims to provide signals within a conductive apatite layer to promote cell adhesion, proliferation and ultimately differentiation into bone tissue. Dual functioning peptides designed to sp…
Nuclear quadrupole resonance (NQR) is a solid-state radio frequency (RF) spectroscopic technique, allowing the detection of compounds containing quadrupolar nuclei, a requirement fulfilled by many high explosives and narcotics. The practical use of NQR is restricted by the inherently low signal-to-noise ratio (SNR) of…
Chitosan has been reported as a promising material for gene and drug delivery as well as for tissue engineering and regenerative medicine. We report here the conjugation of a de novo designed coil peptide (Kcoil) to chitosan ( M(n) = 200 kDa) to achieve a universal Kcoil-chitosan scaffold for subsequent immobilization…
The effect of calcium glutarate (Cagt) and calcium pimelate (Capt) on the formation of β crystalline form in isotactic polypropylene (iPP) after isothermal crystallization at 130°C for 30 min has been investigated. The maximum KWAXD and KDSC values were 31.97% and 38.06%, respectively, for iPP doped with 0.2 wt.% Cagt…
The properties of aqueous colloidal silica sol synthesized by an ion-exchange in a waterglass solution were examined and a continuous manufacturing process of silica sol and regeneration was designed for producing silica sol from inexpensive starting materials in large quantities. The maximum ion-exchange capacity of…
Abstract Carbon black (CB) modified with small organic molecules was filled in polypropylene (PP) matrix. The crystallization behavior and mechanical properties of PP/modified CB (MCB) composites were investigated. Compared with the original CB, MCB could be dispersed uniformly in smaller particle sizes in PP matrix,…