Materials Literature
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the dead layer of skin. Whereas dead cells are being pushed from the deeper portion of the epidermis toward the surface, they are replaced by proliferating cells by mitosis in the basal layer. This change is called cytomorphosis. Cytomorphosis takes an average of 15 to 30 days for a healthy individual. The basic cell…
Supported undecamolybdophosphate was synthesized and characterized by various physicochemical techniques and successfully used for solvent free oxidation of styrene and of benzyl alcohol to benzaldehyde. Influence of the reaction parameters (molar ratio of substrate to H 2 O 2, amount of the catalyst, reaction time, a…
Two new noncentrosymmetric quaternary sulfides, La(2)Ga(2)GeS(8) (1) and Eu(2)Ga(2)GeS(7) (2), have been synthesized by high-temperature solid-state reactions. The structure change on going from 1 to 2 to the known Li(2)Ga(2)GeS(6) (3) nicely shows that the reduced cation charge-compensation requirement causes a decre…
In this paper, well-aligned Au-decorated TiO(2) nanotube arrays with high surface-enhanced Raman scattering (SERS) enhancement were prepared using a facile in situ reduction and controlled growth approach. The gold nanoparticles are well-dispersed and assembled on the mouth surface and the inside of the TiO(2) nanotub…
The ammine complex of yttrium borohydride Y(BH4)3·4NH3, which contains a theoretical hydrogen capacity of 11.9 wt.%, has been successfully synthesized via a simple ball milling of YCl3·4NH3 and LiBH4. The structure of Y(BH4)3·4NH3, determined by high resolution powder X-ray diffraction, crystallizes in the orthorhombi…
Here, we present an investigation of the triple-shape properties of star-shaped polyhedral oligomeric silsesquioxane-poly(ε-caprolactone) polyurethanes (SPOSS-PUs), which have three-dimensional network structures. In a typical ‘triple-shape functionalization process’, mostly consisting of two tensile deformations at d…
Partitioning and transmutation (P&T) of minor actinides (MA) is currently studied to reduce the nuclear waste inventory. In this context, the fabrication of MA bearing materials is of great interest to achieve an effective recycling of these highly radioactive elements. To ensure the in-pile behavior, nuclear oxide fu…
We investigate the use of nonlinear metasurfaces formed by plasmonic nanoantennas loaded with χ(3) nonlinear elements, in order to realize subwavelength imaging based on phase conjugation and time reversal. The nanoantennas' plasmonic resonance is used to boost the nonlinear response over an ultrathin surface, meeting…
Enthalpic path and enthalpy-relaxation rates of ethylbenzene glasses prepared by vapor deposition at various temperatures, T(D), were examined on heating intermittently with a high-precision adiabatic calorimeter. It was confirmed that when T(D) is in the range 0.79-0.96T(g), the enthalpies elucidated at their prepara…
Inverse opal films of molecularly imprinted polymers (MIP) were elaborated using the colloidal crystal template method. The colloidal crystals of silica particles were built by the Langmuir-Blodgett technique, allowing a perfect control of the film thickness. Polymerization in the interspaces of the colloidal crystal…
We have performed first-principle calculations using the full-potential linear augmented plane wave (FP-LAPW) method within density functional theory (DFT) to investigate the structural, elastic and thermodynamic properties of the cubic perovskite RBRh3 (R = Sc, Y and La) compounds. The exchange-correlation potential…
Nanosized silver (Ag) and polydopamine (PDA) composite was prepared via one-step polymerization of dopamine, using Ag+ ion as an oxidant. The oxidization of dopamine and the reduction of Ag+ ion occurred simultaneously in one-step, which resulted in a well-defined core–shell structure of PDA coating around the Ag nano…
We present a mesoscopic approach to granular crystal dynamics, which comprises a three-dimensional finite-element model and a one-dimensional regularized contact model. The approach investigates the role of vibrational-energy trapping effects in the dynamic behavior of one-dimensional chains of particles in contact (i…
We analyze the electrostatic stability of insulating surfaces in the framework of the bulk modern theory of polarization. We show that heuristic arguments based on a fully ionic limit find formal justification at the microscopic level, even in solids where the bonding has a mixed ionic and covalent character. Based on…
High Resolution Image Download MS PowerPoint Slide Photochromic inactive dithienylethene derivatives appended with 3- or 5-dimesitylboryl-2,2′-bithiophene have been synthesized. Upon fluoride ion-binding, the photochromic reactivity is “unlocked”, displaying a novel gated photochromic property.
This manuscript represents an investigation of structure, property and electrochemical activity for commercially available RuO2 coated titanium electrode, known as DSA. The investigation mainly aimed at XAS studies to understand the hidden structural information for RuO2. Two different (150 micron) and a (6 micron) ti…
We address the quantum Hall behavior in twisted bilayer graphene transferred from the C face of SiC. The measured Hall conductivity exhibits the same plateau values as for a commensurate Bernal bilayer. This implies that the eightfold degeneracy of the zero energy mode is topologically protected despite rotational dis…
A novel fluorescence dye based on pyrazine-boron complexes bearing a β-iminoketone ligand has been synthesized by using a simple two-step reaction. Synthesized complexes exhibited fluorescence in solution (F(max): 472-604 nm) and in the solid state (F(max): 496-624 nm). These complexes showed a larger Stokes shift (36…
This work is motivated by the need for large-scale simulations to extract physical information on the iron-chromium system that is a binary model alloy for ferritic steels used or proposed in many nuclear applications. From first-principles calculations and the experimental critical temperature we build a new energeti…
A realistic transport model showing the interplay of the hopping transport between the outer shells of iron-filled entangled multiwalled carbon nanotubes (MWNTs), and the diffusive transport through the inner part of the tubes, as a function of the filling percentage, is developed. This model is based on low-temperatu…