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。
Abstract Polyhedral oligomeric silsesquioxane ( POSS ) compounds consist of unique three‐dimensional nanocages with a general composition of ( RSiO 1 .5 ) n , where R groups are organic moieties for enhanced physical and chemical compatibility of inorganic POSS frameworks with organic systems. Due to their unique size…
A variety of consumer products containing silver nanoparticles (Ag NPs) are currently marketed. However, their safety for humans and for the environment has not yet been established and no standard method to assess their toxicity is currently available. The objective of this work was to develop an effective method to…
Plasma polymer thin films are useful in a variety of different fields. In this article, the fragmentation of ethanol during plasma polymerization at different discharge powers (2–32 W) is described. The positive ion mass spectrometry data of the plasma phase demonstrated formation of oligomeric species of the type [M+…
Thermal cyclic loading influences the life cycle of the thermoelectric device pins because of the thermal stress developed in the pins. Although thermal efficiency improves for different geometric configurations of the device pins, development of thermal stresses limit the selection of pin geometry in practical applic…
BACKGROUND: There is a need for medical treatments to curb the rising rate of obesity. Weight reduction is correlated with a decrease in associated risk factors and cholesterol levels in humans. Amorphous silica particles have been found to exert a hypocholesterolemic effect in humans, making them popular dietary addi…
ABSTRACT The surface modification of existing polymeric biomaterials represents a key strategy for improving the hemocompatibility in long‐ and short‐term biomedical materials without altering their bulk properties. Several techniques have been widely explored to generate surfaces that can prevent the activation of th…
The self-propagating high-temperature synthesis (SHS) of (1 – x )HfB 2 – x HfSi 2 ( x from 0 to 1) ceramics is successfully performed in this work starting from elemental reactants. The presence of HfSi 2 in the composite system progressively reduces the exothermic character of the synthesis reaction. Bulk ceramics ar…
Strong near-infrared (NIR) localized surface plasmon resonances (LSPRs) have been observed in spherical Cu1.94S nanocrystals and matchstick-like Cu1.94S-ZnS heterostructured nanocrystals, which have been synthesized using a simple one-pot approach without any injection and pre-synthesis of metal precursors. The LSPRs…
ABSTRACT The hydrolysis of acetic anhydride in the presence of water is an exothermic reaction that produces acetic acid. Most of the research has focused on low ratios of acetic anhydride to water. The major concern in the industry is the accidental addition of a small amount of water to large quantities of acetic an…
The oxidation of NiAl(100) surfaces by water vapor is studied using X-ray photoelectron spectroscopy (XPS) to elucidate the effect of temperature and vapor pressure on the surface passivation mechanism of the NiAl alloy. The water-vapor oxidation at ambient temperature (25 °C) results in self-limiting Al(OH)3/Al2O3 bi…
Studies of cellular internalization of nanoparticles (NPs) play a paramount role for the design of efficient drug delivery systems, but so far they lack a robust experimental technique able to quantify the NP uptake in terms of number of NPs internalized in each cell. In this work we propose a novel method which provi…
Based on nonequilibrium Green's functions in combination with density-functions theory, the transport properties of armchair graphene nanoribbon (AGNR) devices were investigated, in which one lead is undoped armchair graphene nanoribbons, and the other is phosphorus (P)-doped armchair graphene nanoribbons. The results…
This work reports the preparation of a new 6-coordinated nitrosyl compound and its use as a model to explore the redox and acid-base properties of the three redox states of bound nitrosyl (formally NO(+), NO(•), NO(-)/HNO) in {RuNO}(6,7,8) species. We prepared the octahedral {RuNO}(6) complex [Ru(Me3[9]aneN3)(bpy)(NO)…
The mechanisms of how alloying elements and oxygen influence the stability and elastic properties of binary Ti-$X$ ($X$ = Nb, Zr, or Sn) and Ti2448 (Ti-24Nb-4Zr-8Sn in wt.%) alloys are studied via first principles calculations. In addition to the fully disordered solid solution phase, we consider 44 quasirandom config…
A new method is developed for preparation of amphiphilic block copolymer micellar nanoparticles and investigated as a delivery system for celecoxib, a hydrophobic model drug. Biodegradable block copolymers of poly(ethylene glycol) (PEG) and poly(ε-caprolactone) (PCL) were synthesized by ring opening copolymerization a…
We report the temperature dependence of the transport critical current density for Ag-sheathed (Sr,K)Fe 2 As 2 superconducting wires fabricated by an ex situ powder-in-tube process. The microstructure of the core region of pressed (Sr,K)Fe 2 As 2 superconducting wires consists of almost (Sr,K)Fe 2 As 2 single phase an…
Maleated thermoplastic starches (MTPS) were prepared by reactive extrusion, with corn starch as raw material, glycerol as the plasticizer, and maleic anhydride (MAH) as esterification agent. The influence of the amount of MAH on MTPS properties was studied. With thermoplastic starch (TPS) as contrasting sample, Fourie…
ABSTRACT As the material properties of acrylonitrile–butadiene–styrene copolymer (ABS) have an excessively wide margin for applications in automobile console boxes, ABS partly replaced with poly( l ‐lactic acid) (PLA) may be used for the same purpose with improved ecofriendliness if the corresponding deterioration of…
This paper has considered the selection of the optimal processing parameter (sintering temperature) leading to best possible properties of K0.5Na0.5NbO3 (KNN) for electromechanical applications. Vital piezoelectric properties for such applications include the piezoelectric coupling coefficient (kp), piezoelectric coef…
We report non-equilibrium molecular dynamics simulations of heat transport in models of molecular fluids. We show that the "local" thermal conductivities obtained from non-equilibrium molecular dynamics simulations agree within numerical accuracy with equilibrium Green-Kubo computations. Our results support the local…