Materials Literature
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Staurolite has been long considered an enigma because of its remarkable pseudosymmetry and the frequent twinning. Staurolite gives two twins whose occurrence frequency seems to contradict the condition of lattice restoration requested by the reticular theory of twinning, in that the more frequent one (Saint Andrews cr…
The structural properties and electrophoretic mobility of charged dendrimers in 3:1 electrolyte solutions subjected to direct current electric fields are studied using molecular dynamics simulations. The simulated dendrimer size is studied in zero fields and found to scale as R(g) ∼ N(0.29). The dendrimers exhibit sha…
Electrodeposition technique is very useful for depositing n-type Cu 2 O thin films on various substrates. However, most of the reported n-type Cu 2 O thin film electrodes exhibit not only n-type photoactivity but also p-type photoactivity in photoelectrochemical cells. In this study, current–voltage characteristics an…
The stability, the electronic and the magnetic properties of the hydrogen-terminated zigzag graphitic C3N4 nanoribbons (ZCNNRs) were investigated by using first-principles computations. The semiconductor to half-metal transition could be realized by controlling the hydrogen content of the environment, which is indepen…
Poly(l-lactic acid) (PLA)/epoxy vinyl polyhedral oligomeric silsesquioxane (EP-POSS) nanocomposites were prepared via melt blending. The isothermal cold crystallization and melting behavors of pure PLA and its nanocomposites were investigated using differential scanning calorimetry (DSC). The crystal growth model of P…
We have prepared V 2 O 3 thin films on Al 2 O 3 (0001) substrate by RF magnetron sputtering using oxygen radical and V-metal target, and studied their electronic structures by X-ray absorption spectroscopy (XAS) and X-ray photoemission spectroscopy (XPS). The as-deposited V 2 O 3 thin films deposited at 600 °C exhibit…
We present a method to calculate wave propagation between arbitrary curved surfaces using a staircase approximation approach. The entire curved surface is divided into multiple subregions and each curved subregion is approximated by a piecewise flat subplane allowing the application of conventional diffraction theory.…
The alloy Ti 6 Al 4 V has evolved as a good biomedical material, by virtue of its bio-compatibility. In order to make implants out of this material, it has to be shaped and processed. Shaping this material by conventional manufacturing methods like machining, welding and brazing presents a huge challenge. This challen…
The determination of hormone-binding sites in plants is essential in understanding the mechanisms behind hormone function. Salicylic acid (SA) is an important plant hormone that regulates responses to biotic and abiotic stresses. In order to label SA-binding sites in plant tissues, a quantum dots (QDs) probe functiona…
ABSTRACT In this article, a novel boron‐doped silicone resin (BSR) was synthesized by hydrolysis‐polycondensation method, with propyl‐triethoxysilane (PTES), dimethyl‐diethoxysilane (DMDES), and boric acid (BA) as starting materials, using absolute ethyl alcohol as solvent and hydrochloric acid as catalyst. The struct…
The growth and structure of ultrathin amorphous carbon films was investigated by molecular dynamics simulations. The second-generation reactive-empirical-bond-order potential was used to model atomic interactions. Films with different structures were simulated by varying the deposition energy of carbon atoms in the ra…
Nanocomposites consisting of functionalized multiwalled carbon nanotubes and polyaniline (PANI) were prepared by traditional in-situ polymerization and dynamic interfacial polymerization methods. Morphological and structural analysis showed that synthesis by interfacial polymerization resulted in a well-ordered compos…
Abstract The effect of an Al 2 O 3 interlayer on the thermal conductance of metal (Al)/non‐metal (diamond and silicon) interfaces is investigated using Time Domain ThermoReflectance (TDTR). Interlayers between 1.7 and 20 nm are deposited on oxygen‐terminated diamond and hydrogen‐terminated silicon substrates using ato…
The carrier mobility of a graphene double-layer system is evaluated on the basis of the Boltzmann transport theory. In this system, two graphene layers are separated by a dielectric barrier layer. We focus on the cases in which there is carrier imbalance between the two layers. It is found that the mobility can be imp…
We have investigated the UV-light-induced defect formation in single- and multilayer graphenes on a SiO 2 (300 nm)/Si substrate. Remarkable selectivity for the number of layers was observed; only a single layer graphene is damaged while a multilayer graphene is stable against UV irradiation. We also performed UV irrad…
High luminescence quantum yield water-soluble CdTe/ZnS core/shell quantum dots (QDs) stabilized with thioglycolic acid were synthesized. QDs were chemically coupled to fully humanized antivascular endothelial growth factor165 monoclonal antibodies to produce fluorescent probes. These probes can be used to assay the bi…
Bloch analysis in conjunction with a full-wave simulation is used in order to design a composite right/left-handed (CRLH) transmission line (TL). We analyze the parasitic components introduced by loading elements and inter-cell coupling, and present details to the compensation required in order to maintain the balance…
Evidence is presented in this paper that certain single-wall carbon nanotubes are not seamless tubes, but rather adopt a graphene helix resulting from the spiral growth of a nano-graphene ribbon. The residual traces of the helices are confirmed by high-resolution transmission electron microscopy and atomic force micro…
In rare-earth-doped single crystalline CaFe2As2, the mysterious small volume fraction which superconducts up to 49 K, much higher than the bulk Tc ~ 30 s K, has prompted a long search for a hidden variable that could enhance the Tc by more than 30% in iron-based superconductors of the same structure. Here we report a…
Bionanocomposite films of poly(vinyl alcohol) (PVA) with Mg-Al LDHs were prepared with different compositions by solution-intercalation method. N,N′-(Pyromellitoyl)-bis-L-isoleucine diacid was synthesized and it was used for organo-modification of chiral MgAl-LDH in distilled water. Hybrid films of PVA and modified ch…