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。
Colloidal suspensions are susceptible to gravitationally induced phase separation. This can be mitigated by the formation of a particle network caused by depletion attraction. The effectiveness of this network in supporting the buoyant weight of the suspension can be characterized by its compressional modulus. We meas…
Cherry stones (CS), a lignocellulosic material abundantly generated by the agrarian industry in the Valle del Jerte (Cáceres province, Spain), were used as a precursor in the preparation of granular activated carbon by chemical activation with H 3 PO 4 . After previous contact with a dilute H 2 SO 4 solution, CS were…
Nephrogenic systemic fibrosis (NSF) or nephrogenic fibrosing dermopathy is a rare fibrotic condition that presents in patients with a history of renal disease. The aetiology is unknown, but it has recently been proposed that gadolinium, a paramagnetic contrast agent, may be a trigger of this disease. We report three p…
Many alternative strategies to immobilize and stabilize enzymes have been investigated in recent years for applications in biosensors. The entrapment of enzymes within silica-based nanospheres formed through silicification reactions provides high loading capacities for enzyme immobilization, resulting in high volumetr…
Hyaluronic acid (HA) coated drug carriers (HCDCs) were successfully synthesized by chemical conjugation method for targeted delivery of doxorubicin (DOX) as a prototype anticancer drug to CD44 expressed human breast cancer cell. From XPS analysis, the HCDCs by conjugation methods demonstrated the superior HA fixation…
In this paper, we report a facile synthetic approach for preparing water-soluble Fe 3 O 4 nanoparticles with a surface-surrounded layer by the use of polyethylene glycol(5) nonylphenyl ether (NP5) and cyclodextrin (CD) in aqueous medium and also for building nanostructured spherical aggregates from individual magnetic…
We have recently introduced several important improvements in the measurement of distillation curves for complex fluids. The modifications to the classical measurement provide for (1) a composition explicit data channel for each distillate fraction (for both qualitative and quantitative analysis); (2) temperature meas…
Hydrophobic gold nanorods were fabricated from hydrophilic gold nanorods coated with hexadecyltrimethylammonium bromide by treating with mercaptopropyltrimethoxysilane (MPS) and subsequently octadecyltrimethoxysilane (ODS). The fabrication of the hydrophobic shell went through the process of (1) binding MPS onto the n…
Four nanometer‐sized zirconia powders stabilized by 3 mol% Y 2 O 3 were used for the preparation of dense bulk ceramics. Ceramic green bodies were prepared by cold isostatic pressing at pressures of 300–1000 MPa. The size of the pores in ceramic green bodies and their evolution during sintering were correlated with th…
Abstract Niobium‐doped vanadium dioxide (V x Nb 1– x O 2 , x = 0–0.037) thin films were prepared by aerosol‐assisted chemical vapour deposition (AACVD) of vanadyl(IV) acetonate and niobium(V) ethoxide in ethanol. Samples were analysed by EDX, XRD, Raman, XPS and SEM. The analyses confirmed the deposition of niobium, e…
Hydrogen production from fuel processing and its utilization in fuel cell technology is recognized as a promising route to future power generation. Reliable chemistry models are necessary to improve the hydrogen generation processes via optimal reactor design. With this objective, here, we present a predictive microki…
The present investigation reports on a simple technique for the preparation of single‐phase BiFeO 3 powders using the polymerized complex method, starting from iron and bismuth nitrates. A mixed aqueous solution with citric acid, ethylene glycol, Bi, and Fe ions was polymerized. The formation mechanism, the homogeneit…
A study of thermodynamic properties and structure of sodium borosilicate glasses with a range of pressure-temperature histories is presented. It is demonstrated how differences in the pressure-temperature path of the liquid during cooling may result in glasses with identical short-range structure and molar volume but…
Fluorescent semiconductor nanocrystal quantum dots (QDs) are a class of multifunctional inorganic fluorophores that hold great promise for clinical applications and biomedical research. Because no methods currently exist for directed QD-labeling of mammalian cells in the nervous system in vivo, we developed novel in u…
This letter reports the synthesis and characterization of functionalized magnetic nanoparticles associated with chemical gels and their application to the conservation of cultural heritage. Magnetic nanoparticles, which are associated with acrylamide ethylene oxide polymers, produce a sponge that can be loaded with oi…
Heteropolyacids (HPA) with Keggin structure were evaluated as homogeneous Br∅nsted acid catalysts in the reaction of rapeseed oil transesterification with methanol and ethanol at 358 K and atmospheric pressure. Rapeseed oil transesterification with ethanol over anhydrous Keggin HPAs leads to higher conversion level th…
The effect of growth modifiers on the morphology of zinc oxide (ZnO) nanorods crystallized from solution is characterized. During hydrolysis of zinc nitrate at pH = 7.6 and 75 °C, hexagonally prismatic ZnO crystals were grown in the presence of three growth modifiers: poly(diallyldimethylammonium chloride) (PDADMAC),…
Multiwalled carbon nanotubes (MWNTs) with two different diameters were dispersed within poly(ε-caprolactone) (PCL) by melt-blending and coprecipitation, respectively, with the purpose to impart good electromagnetic interference shielding properties to the polyester. Transmission electron microscopy showed that the MWN…
The amphiphilic gadolinium complex MS-325 ((trisodium-{(2-(R)-[(4,4-diphenylcyclohexyl) phosphonooxymethyl] diethylenetriaminepentaacetato) (aquo)gadolinium(III)}) is a contrast agent for magnetic resonance angiography (MRA). MS-325 consists of two slowly interconverting diastereoisomers, A and B (65:35 ratio), which…
We perform ab initio simulations on the interaction of molecular hydrogen with the native and substitutional defects of single hexagonal boron-nitride sheets and small-diameter (8,0) nanotubes. We find that the adsorption of molecular hydrogen on both types of structure is endothermic with respect to dissociation, wit…