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。
The anodic oxide grown on steel in 50% NaOH at different temperatures and applied potentials has many remarkable properties. Optically the appearance of the oxide can vary from black to dichroic, to a light brown color. Field-effect scanning electron microscopy and X-ray diffraction reveal the oxide to be a nanoporous…
Abstract It is demonstrated that a good biomimetic model lipid membrane with dynamic fluidity can be established on optically transparent nanocrystalline diamond (OTND) with surface roughness below 10 nm. Maigainin II, an antimicrobial peptide, is chosen to investigate the permeation of artificial bacterial membranes…
Three-dimensional chitosan self-assembled nanostructures are reported whose morphology can be adjusted by tuning of the processing parameters, including the rate of solvent removal, the surface roughness of the substrate, and the polarity of the solvent used. Upon this, chitosan nanostructures of more interesting morp…
We report reproducible p-type transport properties in nitrogen-doped ZnS nanoribbons (NRs) synthesized by applying ammonia gas as the acceptor source. Field-effect transistors fabricated from individual ZnS NRs revealed the p-type behavior of ZnS NRs and significant enhancement in p-type transport properties upon anne…
Abstract Novel segmented polyurea elastomers containing soft polyisobutylene (PIB) segments were synthesized and characterized. The key ingredient, primary amine‐telechelic PIB oligomers (NH 2 ‐PIB‐NH 2 ) with number average molecular weights of 2500 and 6200 g/mol were synthesized. PIB‐based polyureas were prepared b…
Thin cellulose films were prepared by dissolving carboxymethylated cellulose fibers in N-methyl morpholine oxide and forming thin films on silicon wafers by spin-coating. The adsorption of cationic polyacrylamides and polydiallyldimethylammonium chloride onto these films was studied by stagnation point adsorption refl…
The synthesis of monodisperse nanocrystals is an important topic in the field of nanomaterials not only for practical applications, but also for scientific interest in fundamental research. In this feature article, we mainly focus on synthesis of monodisperse nanocrystals by a two-phase approach without the separation…
The surface chemistry of isocyanate, NCO, and its precursor, isocyanic acid, HNCO, on Pt(111) was studied with the techniques of reflection absorption infrared spectroscopy (RAIRS) and temperature-programmed desorption (TPD). Isocyanate is known to form on platinum-group metals in the course of the catalytic reduction…
Protein motors play a central role in many cell functions. Understanding the operating principles of molecular motors is crucial to comprehending intracellular protein transport and cell motility. Due to the small size and the negligible inertia of molecular motors, the motor motion is damped by high viscous friction…
An adapted method of optimization of coated metallic nanoparticles is introduced to perform the optimal choice of material and sizes for better scattering or absorption efficiency. This design of nanoshells, involving plasmon resonance, is achieved to maximize the efficiency factors. The presented method is turned to…
This article describes the formation of fibres of calcium carbonate on a range of substrates in the presence of a polyacid diblock copolymer, and it is demonstrated that the morphologies and structures of the fibres can be controlled by judicious selection of both the substrate and the reaction conditions. While fibre…
Dual labeled liposomes, carrying both paramagnetic and fluorescent lipids, were recently proposed as potent contrast agents for MR molecular imaging. These nanoparticles are coated with poly(ethylene glycol) (PEG) to increase their blood circulation half-life, which should allow extensive accumulation at the targeted…
Abstract A fluorescent hyperbranched copolymer (HTP) and a linear copolymer (PTP) as a reference sample to HTP both containing triphenylamine and divinyl bipyridyl units were synthesized via Heck coupling reaction from 5,5′‐Divinyl‐2,2′‐bipyridyl with tris(4‐bromophenyl)amine and with 4,4′‐dibromotriphenylamie, respec…
In biological experiments, poor solubility and uncontrolled assembly of amyloid beta peptide (Abeta) 1-42 pose significant obstacles to establish an experiment system that clarifies the function of Abeta1-42 in Alzheimer's disease (AD). Herein, as an experimental tool to overcome these problems, we developed a water-s…
Abstract A functionalized cyclic carbonate monomer containing a cinnamate moiety, 5‐methyl‐5‐cinnamoyloxymethyl‐1,3‐dioxan‐2‐one (MC), was prepared for the first time with 1,1,1‐tri(hydroxymethyl) ethane as a starting material. Subsequent polymerization of the new cyclic carbonate and its copolymerization with L ‐lact…
Abstract Gold‐supported amphiphilic triblock copolymer brushes composed of two hydrophilic poly(2‐hydroxyethyl methacrylate) (PHEMA) blocks and a hydrophobic poly( n ‐butyl methacrylate) (PBMA) middle part were synthesized using a surface‐initiated ATRP. Attenuated total reflectance Fourier transform infrared spectros…
A series of M II −Ln III azido-containing complexes: [LnNi 2 (IN) 5 (N 3 ) 2 (H 2 O) 3 ]·2H 2 O (Ln = Nd III ( 2 ), Eu III ( 3 ), Sm III ( 4 ), La III ( 5 )) and [GdCu 2 (IN) 5 (N 3 ) 2 (H 2 O) 3 ]·2H 2 O ( 6 ) have been prepared hydrothermally by using isonicotinate (IN) and azide as bridging ligands with the strateg…
Abstract The effects of nucleating agents (NAs) on fracture toughness of injection‐molded isotactic poly(propylene)/ethylene‐propylene‐diene terpolymer (PP/EPDM) were studied in this work. Compared with PP/EPDM blends without any NA, PP/EPDM/NA blends show very small and homogeneous PP spherulites. As we expected, PP/…
Abstract Three Polyvinylidene fluoride (PVDF) different in molecular structure were used to produce nanocomposities films by cast extrusion with a particular emphasis on maximizing the β crystal phase content. The PVDF/clay compounding followed by cast film production was carried out through melt extrusion using a twi…
Abstract Polycondensations of 1,6‐hexane diol and sebacic acid were conducted in bulk with addition of a lanthanide triflate as acidic catalyst. With exception of promethium triflate all lanthanide triflates were studied. A particularly low molecular weight was obtained with neodym triflate and the best results with s…