Materials Literature
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To understand the recently established unique magnetic and superconducting phase diagram of LaFeAsO${}_{1\ensuremath{-}x}$H${}_{x}$, we analyze the realistic multiorbital tight-binding model for $x=0--0.4$ beyond the rigid-band approximation. Both the spin and orbital susceptibilities are calculated in the presence of…
The effect of cucurbit[7]uril (CB[7]) nano-caging on the photophysical properties, particularly excited-state proton transfer (ESPT) reaction, of an eminent anti-cancer drug, topotecan (TPT), is demonstrated through steady-state and time-resolved fluorescence measurements. TPT in water (pH 6) exists exclusively as the…
Ballistic impact response of ceramic- composite armor, consisting of zirconia toughened alumina (ZTA) ceramic front and aramid laminated composite as backing, against 7.62 mm armor piercing (AP) projectiles has been studied. Two types of backing composite laminates i.e. Twaron-epoxy and Twaron-polypropylene (PP) of 10…
Double-stranded anionic dinuclear copper(II) metallacyclic complexes of the paracyclophane type [Cu2L2](4-) have been prepared by the Cu(II)-mediated self-assembly of different para-phenylenebis(oxamato) bridging ligands with either zero-, one-, or four-electron-donating methyl substituents (L=N,N'-para-phenylenebis(o…
We report a direct characterization of the electrocaloric (EC) effect in thin films clamped on substrates using micro-thermometers integrated onto the substrates. The measured temporal temperature profiles are analyzed using a 3D heat diffusion model to extract the adiabatic temperature changes. Thin-film thermometers…
PLGA (poly d,l-lactic-co-glycolic acid) nanoparticles (NPs) encapsulating magnetite nanoparticles (MNPs) along with a model drug human serum albumin (HSA) were prepared by double emulsion solvent evaporation method. This Part I will focus on size and size distribution of prepared NPs, whereas encapsulation efficiency…
The thermoelectric properties of the double-perovskite-type oxide Sr2MnMoO6 were investigated in terms of La doping at the A-site of the oxide. The Bragg reflection of Sr2−xLaxMnMoO6 was indexed with a monoclinic unit cell and the structure was determined in the monoclinic space group P21/n, due to the good agreement…
To understand how solution chemistry governs polymorphic formation of organic crystals, solution NMR measurements of tolfenamic acid were conducted in ethanol. It was unveiled by chemical shift and diffusivity results that the solute molecules self-associated as dimers in solution. Further nOe (nuclear Overhauser effe…
We report on the combination of piezoresponse force microscopy (PFM), magnetic force microscopy, and local ferroelectric switching with magnetic field for the study of a thin-film magnetoelectric (ME) nanocomposite. The collection of PFM under an applied variable magnetic field within a polycrystalline perovskite-spin…
In this study, the dielectric and ferroelectric switching behaviour of 0.5BaTiO3-0.5Bi(Mg1/2Ti1/2)O3 (BT-BMT) ceramics are investigated. The BT-BMT ceramic exhibits a typical dipolar-glass-like, dielectric polarisation relaxation. This is attributed to the 15 distinct possible local A4B2 configurations around the O io…
Non-destructive and rapid evaluation of graphene directly on the growth substrate (Cu foils) by dark field (DF) optical microscopy is demonstrated. Without any additional treatment, graphene on Cu foils with various coverages can be quickly identified by DF imaging immediately after chemical vapor deposition growth wi…
The in situ Raman probing of a UO2 ceramic in [Ar/H2, 95/5] gas atmosphere followed by exposure to He2+ ionic irradiation coming from a cyclotron accelerator was implemented. It was observed that the growth of Raman defect bands exhibits a unique kinetic nicely modelized by a simple direct impact model, and with an an…
In this study, La 0.6 Sr 0.4 Co 0.8 Ga 0.2 O 3‐δ (LSCG) hollow fiber membrane reactor was integrated with Ni/LaAlO 3 ‐Al 2 O 3 catalyst for the catalytic partial oxidation of methane (POM) reaction. The process was successfully carried out in the medium temperature range (600–800°C) for reaction of blank POM with bare…
Limiting the precise study of the biochemical impact of whole molecule extracellular matrix (ECM) proteins on stem cell differentiation is the lack of 3D in vitro models that can accommodate many different types of ECM. Here we sought to generate such a system while maintaining consistent mechanical properties and sup…
We investigated the effect of nitrogen (N) doping on the threshold voltage of an ovonic threshold switching device using amorphous GeSe. Using the spectroscopic ellipsometry, we found that the addition of N brought about significant changes in electronic structure of GeSe, such as the density of localized states and t…
We carried out molecular dynamics simulations to study the adsorption of all the 20 amino acids (AAs; aromatic, polar and non-polar) on the surface of chiral, zigzag and armchair single-walled carbon nanotubes. The adsorption was occurring in all systems. In the aromatic AAs, the π–π stacking and the semi-hydrogen bon…
Due to the considerable industrial implications, an in-depth study of cumene peroxidation using supported gold and silver nanoparticles was carried out to gain more insight into the mechanism of this reaction. Supported gold nanoparticles were found to efficiently catalyze the decomposition of cumene hydroperoxide wit…
This work presents a study of the tensile mechanical properties of millimeter-long fibers comprising carbon nanotubes (CNTs). These CNT fibers are made of aligned, loosely packed parallel networks of CNTs that are grown in and harvested from CNT forests without drawing or spinning. Unlike typical CNT yarn, the present…
The radiolysis of water confined in montmorillonites is studied as a function of the composition of the montmorillonite, the nature of the exchangeable cation, and the relative humidity by following the H2 production under electron irradiation. It is shown that the main factor influencing this H2 production is the wat…
Magnetization, nuclear magnetic resonance, high-resolution x-ray diffraction, and magnetic field-dependent neutron diffraction measurements reveal a novel magnetic ground state of ${\mathrm{Ba}}_{0.60}{\mathrm{K}}_{0.40}{\mathrm{Mn}}_{2}{\mathrm{As}}_{2}$ in which itinerant ferromagnetism (FM) below a Curie temperatur…