Materials Literature
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The MRL/MpJ mouse displays the rare ability amongst mammals to heal injured ear tissue without scarring. Numerous studies have shown that the formation of a blastema-like structure leads to subsequent tissue regeneration in this model, indicating many parallels with amphibian limb regeneration and mammalian embryogene…
Purpose The purpose of this paper is to investigate the effect of different PHS on the surface chemistry of fumed silica treated with aminopropyltrimethoxysilane (APTMS). Design/methodology/approach The reaction conditions involved variation of pH ranging from acidic to alkaline. Different analytical techniques includ…
Abstract Lanthanum doping of zirconium rich lead zirconate titanate gives rise to incommensurate, long‐period antiferroelectric structures. The structure of two stacking sequences in this incommensurate phase is determined using quantitative analysis of high‐resolution scanning transmission electron microscopy images,…
Edge reconstruction modifies the electronic properties of finite graphene samples. We formulate a low-energy theory of the reconstructed zigzag edge by deriving the modified boundary condition to the Dirac equation. If the unit-cell size of the reconstructed edge is not a multiple of three with respect to the zigzag u…
Specific heat, resistivity, magnetic susceptibility, linear thermal expansion (LTE), and high-resolution synchrotron x-ray powder diffraction investigations of single crystals Fe${}_{1+y}$Te (0.06 $\ensuremath{\le}y\ensuremath{\le}$ 0.15) reveal a splitting of a single, first-order transition for $y\ensuremath{\le}$ 0…
In this study, we prepared a series of Ag-doped PbSe bulk materials by a melting–quenching process combined with a subsequent spark plasma sintering process, and systematically investigated the doping effects of Ag on the thermoelectric properties. Ag substitution in the Pb site does not introduce resonant levels near…
40 is a magic number for tetrahedral symmetry predicted in both nuclear physics and the electronic jellium model. We show that Au${}_{40}$ could be such a a magic cluster from density functional theory-based basin hopping for global minimization. The putative global minimum found for Au${}_{40}$ has a twisted pyramid…
We investigate the behavior of Kapitza conductance at interfaces between two Lennard-Jones fcc solids as a function of the range and strength of cross-species interactions via molecular dynamics simulations. It is found that decreasing either of these quantities leads to a reduction in the slope of linear temperature…
Abstract After calculations of various domain‐switching current transients under the pulse from electrical circuit parameters, the field dependence of domain‐switching speeds is accurately estimated over five orders of magnitude in a wide temperature range of 5.4–280 K from the height of domain‐switching current in Pb…
Highly dispersed cobalt-silicon mixed oxide [Co-SiO2] nanosphere was successfully prepared with a modified reverse-phase microemulsion method. This material was characterized in detail by X-ray diffraction, transmission electron microscopy, Fourier transform infrared, ultraviolet-visible diffuse reflectance spectra, X…
Stiffness of interfacial bonding between two materials plays a major role in controlling the thermal conductance of the interface. We use nonequilibrium molecular dynamics simulations to study interfacial thermal conductance at an epitaxial interface between two fcc crystals with interatomic interactions described by…
Dielectric behaviour of BiFeO 3 ceramics, obtained by hot-pressing of nanopowders produced by mechanochemical synthesis from Bi 2 O 3 and Fe 2 O 3 oxides (weight ratio 2:1), was studied in the temperature range 125–575 K. The ceramics was found to exhibit step-like dielectric response ε*(T) with high permittivity valu…
Using the screened hybrid functional of Heyd, Scuseria, and Ernzerhof (HSE) we explore the effects of strain on the energetic ordering and effective mass of the lowest conduction-band states in SrTiO${}_{3}$. We predict that biaxial stress in the (001) or (110) planes results in the lowest-energy conduction-band state…
Nanocomposite electrolytes have been prepared from mixtures of two polyoctahedral silsesquioxanes (POSS) nanomaterials, each with a SiO 1.5 core and eight side groups. POSS-PEG 8 has eight polyethylene glycol side chains that have low glass transition ( T g ) and melt ( T m ) temperatures and POSS-benzyl 7 (BF 3 Li) 3…
Under high-strain-rate compression (strain rate approximately 10(3) s(-1)), nacre (mother-of-pearl) exhibits surprisingly high fracture strength vis-à-vis under quasi-static loading (strain rate 10(-3) s(-1)). Nevertheless, the underlying mechanism responsible for such sharply different behaviors in these two loading…
The direct synthesis of hydrogen peroxide from molecular H2 and O2 represents a green and economic alternative to the current anthraquinone process used for the industrial production of H2O2. In order for the direct process to compete with the anthraquinone process, there is a need for enhanced H2O2 yields and H2 sele…
Abstract The physicochemical basis of probe design for 19 F MRS and MRI applications is reviewed. Complexes that give a single major resonance in solution are described, in which the Ln 3+ ion is about 6 Å from the 19 F label. Sensitivity improvements of 15‐fold are reported in both imaging and spectroscopy based on l…
Graphene is an intriguing two-dimensional material, which could be modified for achieving tunable properties with many applications. Photoluminescence of graphene due to plasmonic emission is well-known, however, attempts to develop strong luminescent graphene have been difficult. Synthesis of a graphene-based materia…
The properties of single-sheet [n]graphanes, their double-layered forms (diamondoids), and their van der Waals (vdW) complexes (multilayered [n]graphanes) were studied for n = 10-97 at the dispersion-corrected density functional theory (DFT) level utilizing B97D with a 6-31G(d,p) basis set; for comparison, we also com…
We develop a microscopic theory to analyze the phase behavior and compute correlation functions of dense assemblies of soft repulsive particles both at finite temperature, as in colloidal materials, and at vanishing temperature, a situation relevant for granular materials and emulsions. We use a mean-field statistical…