Materials Literature
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Quantum molecular dynamic (QMD) simulations have been applied to study the thermophysical properties of liquid xenon under dynamic compressions. The equation of state (EOS) obtained from QMD calculations are corrected according to Saha equation, and contributions from atomic ionization, which are of predominance in de…
The alpha-helix to beta-sheet transition ($\ensuremath{\alpha}\mathrm{\text{\ensuremath{-}}}\ensuremath{\beta}$ transition) is a universal deformation mechanism in alpha-helix rich protein materials such as wool, hair, hoof, and cellular proteins. Through a combination of molecular and theoretical modeling, we examine…
This article presents a one-pot method to synthesize hierarchically ordered porous carbons with interconnected macropores and mespores, via in situ self-assembly of colloidal polymer and silica spheres with sucrose as the carbon source. Compared with other techniques, this procedure is veritably simple; neither presyn…
The viscosities of microcrystalline cellulose dissolved in 1-ethyl-3-methylimidazolium acetate (EMIMAc) and in 1-butyl-3-methylimidazolium chloride (BMIMCl) were studied in detail as a function of polymer concentration and temperature. The goal was to compare the flow of solutions, macromolecule hydrodynamic propertie…
Open Sesame! A synthetic approach to stimuli-responsive polymer nanocapsules has been developed. The reductively labile polymer nanocapsule allows for not only facile, noncovalent surface modification but also the release of encapsulated cargo in response to a predefined redox stimulus in an intracellular environment.
We report the preparation of Au-Pd nanocrystalline catalysts supported on activated carbon prepared via a sol-immobilization technique and explore their use for the direct synthesis of hydrogen peroxide and the oxidation of benzyl alcohol. In particular, we examine the synthesis of a systematic set of Au-Pd colloidal…
Thickness matters: Ultrathin oxide films on metals can greatly enhance catalytic activity, for example, in CO oxidation on an FeO(111) film grown on a Pt(111) substrate. Under the reaction conditions, the bilayer FeO film restructures to form a trilayer OFeO film (see picture). Experimental evidence for the structure/…
This review article presents a general view of the recent progress in the fast developing area of surface-enhanced Raman scattering spectroscopy as an analytical tool for the detection and identification of molecular species in very small concentrations, with a particular focus on potential applications in the biomedi…
Drug resistance is a major challenge to the effective treatment of cancer. We have developed two nanoparticle formulations, cationic liposome-polycation-DNA (LPD) and anionic liposome-polycation-DNA (LPD-II), for systemic co-delivery of doxorubicin (Dox) and a therapeutic small interfering RNA (siRNA) to multiple drug…
Hyperbranched poly(2,5-silole)s [ hb -P 1 ( m ), m = 1, 6] are synthesized for the first time in this work. 1,1-Dialkyl-2,5-bis(4-ethynylphenyl)-3,4-diphenylsiloles [ 1 ( m )] were polymerized by TaBr 5, affording hb -P 1 ( m ) with high molecular weights ( M w up to 2.5 × 10 5 ) in high yields (up to 98%). The struct…
Tissue engineering scaffolds produced by electrospinning feature a structural similarity to the natural extracellular matrix. Polymer blending is one of the effective methods to provide new and desirable biocomposites for tissue engineering applications. In this study chitosan was blended with gelatin and the effect o…
The understanding of the basic physical relationships between nano-scale structural variables and the macroscale properties of polymer nanocomposites remains in its infancy. The primary objective of this article is to ascertain the state of the art regarding the understanding and prediction of the macroscale propertie…
Hexagonal boron nitride (h-BN) is a layered material with a graphite-like structure in which planar networks of BN hexagons are regularly stacked. As the structural analogue of a carbon nanotube (CNT), a BN nanotube (BNNT) was first predicted in 1994; since then, it has become one of the most intriguing non-carbon nan…
The shape evolution of fcc Co–Fe precipitate particles during coarsening in Cu-1.37 at.% Co-0.83 at.% Fe alloy single crystals has been examined by the transmission electron microscopy observation. Co–Fe particles change from sphere to cuboid and eventually flatten into a plate-like one with increasing particle size.…
Abstract The increasing sophistication of optoelectronic devices requires molecular‐level dimensional control in the fabrication of multilayered structures with specifically engineered interfaces. However, the effectiveness of growth and doping strategies devised to achieve the desired device structures often remains…
TiC-Ti3AlC2 composites with a novel intragranular structure were fabricated by self-propagating high temperature synthesis technique using Ti, Al and C elemental powders. X-ray diffraction results indicated that the as synthesised composites were composed of TiC and Ti3AlC2, where the amounts of TiC were measured to b…
In the case of mixed-valence systems whose spin states are situated in the spin crossover region, new types of conjugated phenomena coupled with spin and charge are expected. From this viewpoint, we have investigated the multifunctional properties coupled with spin, charge and photon for the organic-inorganic hybrid s…
Realizing optically transparent functional circuitry continues to fuel scientific and technological interest in transparent conducting oxides (TCOs). However, precise means for creating transparent interconnects for device-to-device integration has remained elusive. Here we report on the chemical, microstructural, and…
Abstract The main target of this study was to obtain COOH functionalities on the surface of 3D, nonwoven polyethylene terephthalate fabrics (NWPFs) by using low pressure water/O 2 plasma assisted treatment. The plasma treatments were performed in a cylindrical, capacitively coupled RF‐plasma‐reactor and then following…
Abstract A simple heterogeneous synthesis of pure modified porous polysiloxane SiO 2 by condensing a functionalized C,C ‐pyridylpyrazole with a 3‐glycidoxy‐propyltrimethoxy‐silane silylant agent, previously anchored on a silica surface is reported. The epoxide group was opened yielding a receptor pendant group bonded…