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。
Single crystalline gold nanorods (Au NRs) dominated by {110} side facets were employed as seeds to tailor the deposition of Ag. Apart from homogeneous coating, anisotropic coating of Ag was observed and resulted in an orange slice-like shape for the Au@Ag nanocrystal. Different growth rates for the {110} side facets w…
Different types of Binary Nanoparticle Superlattices (BNSLs) have been self-assembled from monodisperse 8.7 nm CdSe and 5.5 nm Au nanocrystals. Fluorescence spectroscopy studies of AlB 2 -type BNSL of CdSe and Au nanocrystals revealed considerably decreased fluorescence and a shortened fluorescence lifetime of the CdS…
An environmentally friendly method using a cell-free extract (CFE) of Rhodopseudomonas capsulata is proposed to synthesize gold nanowires with a network structure. This procedure offers control over the shapes of gold nanoparticles with the change of HAuCl4 concentration. The CFE solutions were added with different co…
Combinations of different aromatic polymers and organic solvents have been studied as dispersing agents for preparing single-walled carbon nanotubes solutions, using optical absorbance, photoluminescence-excitation mapping, computer modeling, and electron microscopic imaging to characterize the solutions. Both the pol…
We report that a layered iron-based compound LaOFeAs undergoes superconducting transition under doping with F - ions at the O 2- site. The transition temperature ( T c ) exhibits a trapezoid shape dependence on the F - content, with the highest T c of ∼26 K at ∼11 atom %.
We present a novel way to obtain heavily nitrogen doped anatase TiO2 films by using a solid-state nitrogen source. Epitaxial growth of the films was realized by introducing one unit-cell seed layer, which was indicated by reflection high-energy electron diffraction as intensity oscillation. Results of x-ray diffractio…
We have studied the growth of gold fractal nanostructures by a novel electrochemical deposition (ECD) method. In our ECD process, instead of an aqueous solution of metallic salt, we use an organic solution (such as N, N -dimethylformamide (DMF) or acetonitrile) as the electrolyte and integrate the microscale ECD syste…
Pore-free ⟨110⟩ oriented 12CaO·7Al 2 O 3 (C12A7) single crystals with sizes up to 7 mm (Phi) × 40 mm are grown by controlling the melt states in a floating zone (Fz) method. Control is achieved by increasing the melt temperature to ∼1495 °C and using a high-density C12A7 polycrystalline feed rod, which reduces oxygen…
We report a thermodynamic investigation of the adsorption of saturated and unsaturated (cis- and trans-) alkyl amides onto the surface of graphite from their pure liquids and from binary mixtures. We identify the formation of solid monolayers of the amides at temperatures when the bulk materials are liquid. The extent…
The oligomerization of propene, as well as the alkylation of benzene and toluene with propene, was evaluated at 160−240 °C, 3.8 MPa, and aromatic to olefin ratios of 1:6 to 6:1 using solid phosphoric acid (SPA) as a catalyst. It was found that steric effects were more important than electronic effects in determining a…
Abstract A series of fluorescently labeled core cross‐linked star (CCS) polymers were synthesized via the “arm‐first” approach, employing atom transfer radical polymerization (ATRP) to control the resulting architecture. The initiator p‐toluenesulfonyl chloride (TsCl) was used to synthesize “living” poly(methyl methac…
Dear Sir, Karipidis et al. [1] report on a case–control study of occupational exposure to ionizing and non-ionizing radiations and the risk of glioma in which they found no increase in risk, apart from to ultraviolet. However, their methodology is questionable and raises the possibility of a type-2 error (false negati…
This article presents a method for making highly porous biodegradable scaffold that may ultimately be used for tissue engineering. Poly(L‐lactic‐co‐ϵ‐caprolactone) acid (70∶30) (PLCL) scaffold was produced using the solvent casting/leaching out method, which entails dissolving the polymer and adding a porogen that is…
Abstract In order to combine the merits of the rapidly developing fields of spintronics and organic electronics, we present a concept of an organic field‐effect transistor (OFET) for spin‐polarized transport, enabling a non‐volatile activation and deactivation by magnetic field pulses. This new steering parameter in a…
Abstract We report on the improved assembly and characterization of a small molecule organic field‐effect transistor (OFET). Novel α,ω‐dicyano substituted β,β′‐dibutylquaterthiophene molecules (DCNDBQT) were synthesized and characterized by UV–Vis spectroscopy, differential scanning calorimetry, thermal gravimetric an…
Cordierite foams were prepared by replication of polyurethane foams and were coated with three types of carbon xerogels. The dip coating and synthesis conditions were optimized, and the coated foams were characterized exhaustively. The composition of the starting solution, coat loading, and carbonization temperature a…
The use of interference microscopy has enabled the direct observation of transient concentration profiles generated by intracrystalline transport diffusion in nanoporous materials. The thus accessible intracrystalline concentration profiles contain a wealth of information which cannot be deduced by any macroscopic met…
Many models that have been developed for cortical bone oversimplify much of the architectural and physical complexity. With SiNuPrOs model, a more complete approach is investigated: it is multiscale because it contains five structural levels and multi physic because it takes into account simultaneously structure (with…
Thin films of MnO(2) nanoparticles were grown using the layer-by-layer method with poly(diallyldimetylammonium) as the intercalated layer. The film growth was followed by UV-vis, electrochemical quartz crystal microbalance (EQCM), and atomic force microscopy. Linear growth due to electrostatic immobilization of layers…
Silicon nanowires (SiNWs) have been grown with our nanochannel-template-guided "grow-in-place" approach and used in-place for resistor and transistor fabrication. In this methodology, empty nanochannels of a permanent template literally guide the vapor-liquid-solid (VLS) mechanism of SiNW growth and give control of th…