Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
By means of a first-principles investigation, we show that nonhydrostatic applied pressure can explain the different experimental data reported in the literature for the pressure value where the structural transition, from orthorhombic (magnetic) to tetragonal (paramagnetic), takes place in BaFe${}_{2}$As${}_{2}$. In…
Ultrasmall nanopores in silver thin films with a diameter of about 2 nm have been fabricated using femtosecond laser ablation in liquid. Ultrafast laser pulse ablation generates highly nonequilibrium excitated states, from which silver thin films emerge and progressively grow with the assistance of capping agent molec…
By applying a thermodynamic theory that incorporates the concept of complete scaling, we derive the asymptotic temperature dependence of the critical behavior of the dielectric constant above the critical temperature along the critical isochore and below the critical temperature along the coexistence curve. The amplit…
Abstract This article reviews experimental and modeling methods for determining the critical roles played by the various factors that control nanocarrier drug delivery to vascular endothelial cells. © 2011 IUBMB IUBMB Life, 2011
The first-generation platforms for vascular drug delivery adopted spherical morphologies. These carriers relied primarily on the size dependence of the enhanced permeability and retention effect to passively target vasculature, resulting in inefficient delivery due to significant variation in endothelial permeability.…
In situ nanoindentation was performed on a multilayer of poly(acrylic acid) and a high molecular weight, pendant chain polyviologen under controlled electrochemical potential. The modulus of the thin film of polyelectrolyte complex was reversibly modulated, by about an order of magnitude, upon changing the state of ch…
Superaustenitic stainless steels exhibit excellent corrosion resistance, at a wide variety of exposure temperatures, especially in chloride containing environments, coupled with desirable mechanical properties. Previous studies have shown that these steels are prone to precipitation of secondary phases, such as sigma…
Food application of wheat B-starch comprising small starch granules as a result of lower quality is problematic. Accordingly, B-starch or acetylated starch prepared from it, with the degree of substitution (DS) of 1.5-2.3, was used in biodegradable films after blending with poly-(ε-caprolactone) (PCL). The following m…
Abstract The effect of Mo from 25°C to 80°C on the pitting corrosion of the Co1.5CrFeNi1.5Ti0.5Mox alloys in chloride solutions was investigated. The values of critical pitting temperature (CPT) for the Mo-free alloy in 0.001, 0.01, 0.1, and 1 M sodium chloride (NaCl) are 80, 50, 30, and below 25°C, respectively. The…
Thermoplastic Elastomer (TPE) composite reinforced with Hibiscus cannabinus, L fiber (kenaf fiber, KF) was prepared via melt blending method using internal mixer at temperature 180°C, screw rotational speed at 40rpm for 10 min. TPE matrix is a blend of polypropylene (PP) and ethylene-propylene-diene monomer (EPDM) at…
Following atomic photoionization, the abrupt change in potential can lead to secondary ionization of an outer-shell electron in a phenomenon known as shake-off, a process which gives rise to the asymmetric $K\ensuremath{\alpha}$ profile and satellite lines. Investigation of chemical effects and relativistic quantum me…
The present study investigates a very simple and inexpensive superhydrophobic coating preparation by spray-coating a silicone rubber/stearic acid mixture on a flat surface using a one-step process. The wettability of the coatings was found to be dependent on the surface morphology that was governed by the stearic acid…
Discontinuous precipitation (DP) and discontinuous coarsening (DC) reactions have been observed in numerous alloy systems [1]. DP has been observed in the U-Nb system [2, 3, 4, 5]. The U-Nb phase diagram (Fig. 1) exhibits a continuous γ-BCC solid solution at high temperatures and a two-phase mixture of a-orthorhombic…
Dimethoxybis(3,3,3-trifluoropropen-1-yl)benzenes were prepared through palladium-catalyzed double cross-coupling reactions of diiododimethoxybenzenes with CF(3)C≡CZnCl, followed by reduction of CF(3)C≡C groups with LiAlH(4) or H(2) in the presence of the Lindlar catalyst. The edges of the absorption spectra of 1,2-(Me…
Cross sections of scattering, absorption, and light pressure for a chiral spherical particle in a circularly polarised light field are studied for different values of the radius, dielectric constant, permeability, and parameter of the chiral particle. The conditions are found under which the cross sections of absorpti…
Abstract Several composites, consisting of a metastable austenitic steel matrix and varying amounts of MgO partially stabilized zirconia particles (Mg‐PSZ), were produced through spark plasma sintering (SPS). Compression tests were carried out at room temperature in a wide range of strain rate (4 · 10 −4 s −1 , 2 · 10…
AIMS: The aim of this study was to isolate a thermotolerant micro-organism that produces polyhydroxyalkanoates (PHAs) composed of medium-chain-length (mcl) HA units from a biodiesel fuel (BDF) by-product as a carbon source. METHODS AND RESULTS: We successfully isolated a thermotolerant micro-organism, strain SG4502, c…
In the present work, tert-butylhydroquinone (TBHQ) was used to decorate graphene nanosheets to obtain a novel and environmentally friendly electrode material for supercapacitors. The fast redox reactions between hydroquinone and quinone generate pseudocapacitance. Graphene layers which have adsorbed TBHQ interact with…
It has been shown that Pseudomonas putida GPo1 is able to grow in continuous culture simultaneously limited by ammonium (N source) and octanoate (C source), and concomitantly accumulate poly([R]-3-hydroxyalkanoate) (PHA). Under such growth conditions the material properties of PHA can be fine-tuned if a second PHA pre…
This study proposes a novel process for significantly toughening isotactic polypropylene (iPP) by finely tuning and controlling the structure and morphology of iPP. The toughness of injection-molded iPP specimens can be significantly improved by controlled shearing, CO 2 -induced recrystallization, and adequate coolin…