Materials Literature
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During cell differentiation for tissue regeneration, several factors, including growth factors and proteins, influence cascades in stem cells such as embryonic stem cells and mesenchymal stem cells (MSCs). In this study, transforming growth factor (TGF)-β3 and SOX9, which is an important protein in chondrocytes, were…
Abstract In this study an attempt has been made to incorporate a radiation resistant filler like boron carbide (B 4 C) nanopowder along with multi walled carbon nanotubes (MWCNT) in a high performance polymer namely poly aryl ether ketone (PAEK) for potential applications in the nuclear industry. The dispersion of nan…
Simultaneous triple-ion beam irradiation experiments with Fe 5+ , He + and H + ions were performed to simulate fusion damage on two nanostructured ferritic alloys with nominal composition Fe–14Cr–0.3Y 2 O 3 and Fe–14Cr–2W–0.3Ti–0.3Y 2 O 3 . Samples were irradiated at 600 °C to an estimated dose of ∼ 30 dpa, 600 appm H…
Hard biological polymers exhibiting a truly thermoplastic behavior that can maintain their structural properties after processing are extremely rare and highly desirable for use in advanced technological applications such as 3D-printing, biodegradable plastics and robust composites. One exception are the thermoplastic…
Cubic molybdenum nitride (γ-Mo 2 N) exhibits Pt-like catalytic behavior in many chemical applications, most notably as a potent catalyst for conversion of harmful NO x gases into N 2 . Guided by experimental profiles from adsorption of 15 NO on γ-Mo 2 14 N, we map out plausible mechanisms for the formation of the thre…
Highly pure metallic structures can be deposited by electron beam induced deposition and they have many important applications in different fields. The organo-metallic precursor is decomposed and deposited under the electron beam, and typically it is purified with post-irradiation in presence of O2. However, this appr…
Dendrimers are a family of ramified synthetic molecules. pH effects and electrostatic interactions are known to be crucial players to explain the conformational and functional behaviors observed in these systems. Nonetheless, to date, no computational study involving these systems has explicitly addressed the protonat…
The evaporation of quinacridone from a stainless steel Knudsen cell leads to the partial decomposition of this molecule in the cell, due to its comparably high sublimation temperature. At least one additional type of molecules, namely indigo, could be detected in the effusion flux. Thermal desorption spectroscopy and…
Multiferroic materials that exhibit coupling between ferroelectric and magnetic properties are of considerable utility for technological applications and are also interesting from a fundamental standpoint. When reduced to the nanoscale, multiferroic materials often display additional functionality that is dominated by…
The catalytic oxidation of CO is studied at low-coordinated Au atoms using a single-crystal approach. Electron irradiation activates an otherwise unreactive overlayer of undissociated D 2 O on Au(310). A low-coverage D 2 O/O mixture is subsequently allowed to react at surface temperatures from 105 K upward, with CO su…
The superconductivity and intercalation statein the lithium-and hexamethylenediamine (HMDA)-intercalated superconductor Li$_x$(C$_6$H$_{16}$N$_2$)$_y$Fe$_{2-z}$Se$_2$ have been investigated from powder x-ray diffraction, thermogravimetric and magnetic susceptibility measurements, changing the intercalation temperature…
The exfoliation of layered materials has attracted a lot of attention in recent times. In this report, we have exfoliated WS 2 in deionized water (without using any chemical solvents, surfactants, etc) using the thermal coefficient mismatch between WS 2 and H 2 O along with other anomalous properties of water, such as…
Research on the simulation and modeling of dynamic puncture penetration is more complex problem due to full consideration of the tightness of the fabric and the sharp profile of the puncture. This study presents numerical simulation of complicated dynamic puncture behaviors on the basis of the roles of extension and s…
Acrylic polymers, particularly poly (methyl methacrylate) (PMMA), have certain specific properties, such as good film formation, transparency, and good mechanical properties, which have been widely used in paints, coatings and adhesives.However, the limited chemical and physical stability of these pure polymers limits…
Stretchable pseudocapacitors have demonstrated perspective potential as the power sources for stretchable/flexible electronics. However, one of the main limitations is to increase the mass loading of pseudocapacitive materials while maintaining high electrochemical performance. Therefore, the architectural design of s…
Novel hybrid materials of cellulose and magnetic nanoparticles (NPs) were synthesized and characterized. The materials combine the chiral nematic structural features of mesoporous photonic cellulose (MPC) with the magnetic properties of cobalt ferrite (CoFe2O4). The photonic, magnetic, and dielectric properties of the…
at a pump power of 4 mW (980-nm wavelength). The nanocolloid gain medium was prepared by pulverizing the phosphor powder with a high-speed planetary ball mill. Ball milling of the powder in water produced nanoparticles with a size of approximately 130 nm that after drying were transferred to a liquid with high refract…
The article presents the results of measurements of pressure exerted by two model knitted products – bands with different structure (WI jersey weft-knitted fabric and WII openwork warp-knitted fabric). The tests were carried out with using the I-Scan system (in vivo and in vitro tests) and the STM 579 device (in vitro…
The nonequilibrium process by which hard-particle systems may be compressed into disordered, jammed states has received much attention because of its wide utility in describing a broad class of amorphous materials. While dynamical signatures are known to precede jamming, the task of identifying static structural signa…
Poly(amido amine) (PAMAM) dendrimers have been considered as possible delivery systems for anticancer drugs. One potential advantage of these carriers would be their use in oral formulations, which will require absorption in the intestinal lumen. This may require the opening of tight junctions which may be enabled by…