Materials Literature
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Scanning capacitance microscopy (SCM) is used to probe on nanoscale the capacitive behavior of graphene deposited on a SiO2∕Si n+ substrate (with SiO2 thickness of 300 or 100nm). The SCM tip provides the contact on graphene, while the Si n+ substrate acts as the backgate contact in the graphene/SiO2∕Si capacitor. The…
An abundant trait of biological protein materials are hierarchical nanostructures, ranging through atomistic, molecular to macroscopic scales. By utilizing the recently developed Hierarchical Bell Model, here we show that the use of hierarchical structures leads to an extended physical dimension in the material design…
The electrochemical response of Bromothymol blue at carbon paste electrode in presence of 0.1M KCl was investigated by the cyclic voltammetric technique. It showed a well-defined oxidation peak at 0.73V and a sensitive reduction peaks at 0.34 V. The effect of concentration and scan rate of Bromothymol blue was studied…
INTRODUCTION: Current prosthetic alternatives to autologous vascular grafts remain poor in terms of patency. Growing biologic blood vessels has been proposed as an alternative. In this work, the authors demonstrate a method for producing a tissue-engineered vascular graft (TEVG) with self-derived endothelial cells, sm…
A novel liposomal formulation of docetaxel targeting the folate receptor (FR) was synthesized and characterized. Liposomal formulations are less toxic and can provide longer systemic circulation time than the Tween 80 and ethanol based clinical formulation of docetaxel. Folate receptor-alpha (FR) is frequently over-ex…
The crystalline structure and dielectric properties of Sm1.5Sr0.5NiO4 ceramics are presented. The present ceramics is refined as orthorhombic Bmab phase and the orthorhombic strain may change the statue of charge ordering. The temperature-stable giant dielectric constant (∼100 000) with low dielectric loss of ∼0.1 is…
Cyclic arginine-glycine-aspartate (RGD) peptides and their derivatives have been intensively studied as tumor targeting probes. One major drawback, however, is their short blood circulation half-lives, which greatly compromises their targeting efficacy. To address this issue, a cyclic peptide, c(RGDyK), and an organic…
The effects of Zr addition on the microstructure of AZ91 alloy were investigated under as-cast and isothermally aged conditions. The microstructures contained a eutectic β-Mg17Al12 phase together with fine Al–Zr intermetallic compounds. These intermetallic compounds inhibited grain growth during the 420 °C isothermal…
The existence of universal scaling in the vicinity of the jamming transition of sheared granular materials is predicted by a phenomenological theory. The critical exponents are explicitly determined and are independent of the spatial dimension. The validity of the theory is verified by a molecular dynamics simulation.
Pairing symmetry is important to indentify the pairing mechanism. The analysis becomes particularly timely and important for the newly discovered iron-based multi-orbital superconductors. From the group theory point of view we classified all pairing matrices (in the orbital space) that carry irreducible representation…
The dihydroisoindole strategy for the synthesis of linearly annelated π-extended porphyrins is a common approach to tetrabenzo-, tetranaphtho-, and tetraanthraporphyrins with variable functionality and substitution patterns. This method implies the use of a common type of precursors involving the 4,7-dihydroisoindole…
We study the state of a nanometric helium bubble in bcc-iron as a function of temperature and He content using atomistic calculations. It appears that up to moderate temperatures the Fe lattice can confine He to solid state, in good agreement with known solid-liquid transition diagram of pure He. However, He in the bu…
Ab initio evolutionary algorithm was employed to resolve the crystal structure of the observed superhard BC2N. We uncovered two polymorphs with rhombohedral (2 f.u./cell) and orthorhombic (2 f.u./cell) symmetries, with which the experimental x-ray diffraction pattern is well reproduced. Analysis of the total energy re…
The main historical stages of development in the USSR of industrial production of fluoroplastics and organofluorine materials are outlined. Physical, chemical and biological properties of fluoroplastics and fluoroelastomers are described. Examples of efficient application of fluoropolymers in chemical and natural gas…
A single cell gap transflective liquid crystal display (TR-LCD) using dual fringing field switching mode is proposed, in which a positive dielectric anisotropy liquid crystal is vertically aligned and driven by fringing fields from both substrates. By optimizing the electrode width and gap of the transmissive and refl…
Abstract The surface morphology and physical (density), optical (refractive index), and mechanical (hardness, elasticity) properties of amorphous hydrogenated silicon carbide (a‐SiC:H) films produced by remote microwave hydrogen plasma (RHP)CVD from a triethylsilane precursor are investigated. The effect of substrate…
We experimentally demonstrated the amplification of optical disk readout signals by homodyne detection. This technique uses optical interference to amplify the signals. We further applied phase-diversity detection to reliably obtain the amplified readout signal. The optical system was carefully designed so that a suff…
Summary Hydraulic fracturing has become a state-of-the-art stimulation technique. It has been proved over the years that significant production increase can be obtained by applying the right fracturing technique. Now, the most advanced techniques of geothermal-energy-recovery systems widely use hydraulic fracturing. T…
This article presents the analysis of photoluminescence (PL) spectra of CdSe∕ZnS quantum dots (QDs) with and without bioconjugation to biomolecules, Interleukin 10 (IL10) antibodies. Commercial CdSe∕ZnS QDs used in the study are characterized by the color emission with the maximum at 605nm (2.05eV). It is shown that P…
Covers advancements in spacecraft and tactical and strategic missile systems, including subsystem design and application, mission design and analysis, materials and structures, developments in space sciences, space processing and manufacturing, space operations, and applications of space technologies to other fields.