Materials Literature
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Abstract Composites of polypropylene (PP) with nontreated nanosilica at different particle sizes are prepared, and their viscoelastic properties are studied by dynamic strain‐ and frequency‐sweep experiments. It is clear that incorporation of nanoparticles in a polymer matrix due to the huge specific surface area enha…
Abstract Supercritical carbon dioxide (Sc‐CO 2 ) is a good plasticizer to improve the compatibility for nanocomposites or polymer blends. In this work, polylactide (PLA)/clay nanocomposites were compounded using a twin‐screw extruder. Two extrusion methods were used, one with Sc‐CO 2 and another without Sc‐CO 2 . Micr…
Abstract The utilization of waste rubber powder in polymer matrices provides an attractive strategy for polymer waste disposal. Addition of recycled acrylonitrile‐butadiene rubber (NBRr) in rubber compounds gives economic (lowering the cost of rubber compounds) as well as processing advantages. In this study, the prop…
A special physical micromechanism/mode of twin deformation in nanowires and nanocrystalline (NC) solids is suggested and theoretically described. This mode represents a nanoscale multiplane shear (NMS) defined as an ideal shear occurring within a nanometer-sized volume. We calculated the energy and stress characterist…
Potential benefits of co-culturing monocytes (MC) with vascular smooth muscle cells have been reported on for tissue engineering applications with a degradable, polar, hydrophobic, and ionic polyurethane (D-PHI). Since the interaction of MC and endothelial cells (EC) within the blood vessel endothelium is also a proce…
A batch system is an inherently parametric sensitivity system where small changes of input parameters can induce large changes of output variables. In the present work, temperature and temperature sensitivity with respect to the initial temperature were investigated by parametric sensitivity analysis using a dimension…
In a recently characterized thiamin-salvage pathway, thiamin-degradation products are hydrolyzed by thiaminase II, yielding 4-amino-5-hydroxymethyl-2-methylpyrimidine (HMP). This compound is an intermediate in thiamin biosynthesis that, once phosphorylated by an HMP kinase, can be used to synthesize thiamin monophosph…
Abstract Polyethylene terephthalate (PET)/clay nanocomposites (PCNs) containing 1 wt% Cloisite 30B (C30B) were prepared via melt compounding. Modulated differential scanning calorimetry (MDSC) for isothermally crystallized samples revealed that the third endotherm at the highest temperature may be attributed to the re…
Kompositkatalysatoren aus mehrlagigem Kohlenstoff und Eisenoxid sind sehr aktiv in der katalytischen Oxidation von sekundären Alkoholen. Größe und Struktur der Eisenoxid-Partikel (blau im Transmissionselektonenmikroskopiebild), die in den mehrlagigen Kohlenstoff eingebettet sind, können relativ einfach über eine Änder…
Abstract For successful blood vessel and organ manufacturing, it is critical to maintain the cell survival rate in an environment suitable for the appropriate inducement of regeneration. Mechanical properties and cell compatibilities of artificial grafts are equally critical for the long‐term structural and biological…
The power conversion efficiencies of electrodeposited Cu2O/ZnO p-n junction based solar cells are significantly improved by sandwiching a layer of spin-coated CdS nanowires (NWs) in between the electrochemically deposited Cu2O and ZnO layers. With the inclusion of the CdS NWs, there is observed a 5 fold improvement in…
Nano Drug Delivery, as a treatment method against brain tumors, is a progressing area in the field of precise targeted drug administration methodology. The unresolved problems related to chemotherapy, other invasive therapeutic procedures and various obstructions offered by biological barriers are circumvented by nano…
Ab initio phasing is one of the remaining challenges in protein crystallography. Recent progress in computational structure prediction has enabled the generation of de novo models with high enough accuracy to solve the phase problem ab initio. This `ab initio phasing with de novo models' method first generates a huge…
A structural study has been performed on the polar ZnO(000$\overline{1}$)-(1$\ifmmode\times\else\texttimes\fi{}$1) surface using ab initio calculations and low-energy electron diffraction (LEED). The experiment was performed with a delay line detector LEED system to minimize electron damage of the surface. The top O-Z…
The effects of solid-liquid interfacial shape on the boundary velocity slip of patterned hydrophobic surfaces are investigated. The scaling law in literature is extended to demonstrate the role of such shape, indicating a decrease of the effective slip length with increasing interfacial roughness. A patterned surface…
The electromechanical properties of rhombohedral single crystals Pb(Mg1/3Nb2/3)-Pb(In1/2Nb1/2)-PbTiO3 (PMN-PIN-PT) were investigated under hydrostatic pressure from 0.1 to 456 MPa. Due to pressure-induced morphotropic phase boundary moving, the piezoelectric coefficients and electromechanical coupling factors of PMN-P…
Abstract Conjugated aromatic oligo(azomethine) derivatives (oligo‐AMs) were prepared by the condensation of terephtaldehyde 4,4′‐diformylbiphenyl bis(4‐formylphenyl) ether and p ‐phenylene diacrolein with 1,4‐diaminobenzene at room temperature. The structures of the synthesized oligomers were characterized by FTIR, 1…
Abstract The synthesis of gold nanoparticles (2–4 nm) carrying a single functional polystyrene chain and its characterization by gel permeation chromatography are reported. This has been achieved by a new type of macromolecular azo‐initiator based on telechelic polystyrene with containing α , ω ‐methylcoumarin endgrou…
We report the results of an experimental study of dc and low-frequency magnetic properties of a K${}_{0.8}$Fe${}_{2\ensuremath{-}y}$Se${}_{2}$ single crystal when the dc magnetic field is applied parallel to the $\mathbf{ab}$ plane. From the data obtained, we deduce the full H-T phase diagram, which consists of all th…
Abstract The effects of loading rate on bio‐, nano‐, and microcellular composite systems have been studied. Fiber–resin systems have been manufactured and dynamically tested at various speeds to assess their strain‐rate dependencies (rate hardening) and energy‐dissipation characteristics compared to conventional mater…