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。
Inorganic enzyme? Ceria nanoparticles exhibit unique oxidase-like activity at acidic pH values. These redox catalysts can be used in immunoassays (ELISA) when modified with targeting ligands (see picture; light blue and yellow structures are nanoparticles with attached ligands). This modification allows both for bindi…
Athreya, Goldenfeld, and Dantzig [Phys. Rev. E 74, 011601 (2006)] claim that the current implementation of the renormalization-group method neglects the proper ordering of renormalization and differentiation. Their analysis is, however, based on the wrong multiple-scales method results.
Abstract XPS spectrum image data sets acquired on laboratory instruments have inherently poor signal/noise, and require the use of multivariate analytical techniques to avoid prohibitively long acquisition times. However, when procedures that order the data by variance are used, the data set must be scaled beforehand,…
We investigate theoretically the tuning properties of the resonant mode of the waveguide-grating structures (WGS). This intends to understand how tuning mechanisms of the waveguide resonance mode depend on the structural and the geometric parameters of the WGS device, which can be used as guidance for the design of bi…
A simple chemical method was introduced to prepare polyaniline nanofibers in this article. According to the experimental results of scanning electron microscopy, Fourier transform infrared spectroscopy, inductively coupled plasma atomic emission spectra, critical micelle concentration (CMC) of toluene- p -sulfonic aci…
Controlled self-assembly of polar aromatic silane leads to the formation of well-ordered lamellar structures. Graphite-like features are clearly visible with a scanning electron microscope (SEM). In addition, X-ray diffraction (XRD) patterns suggest a d spacing of 14.28 A along the z-axis and 4.42 A in the xy plane, w…
Nanostructured PbSnO(3) photocatalysts with particulate and tubular morphologies have been synthesized from a simple hydrothermal process. As-prepared samples were characterized by X-ray diffraction, Brunauer-Emmet-Teller surface area, transmission electron microscopy, and diffraction spectroscopy. The photoactivities…
The CH(4)-->CH(3)+H dissociation on the defect-free Pd-2O terminated PdO{100} surface is investigated by first principles calculations. CH(3) chemisorbs preferentially at O sites, where the adsorption is 0.68 eV more stable than at Pd sites. Analysis of the electronic structure of adsorption geometries reveals that th…
ADVERTISEMENT RETURN TO ISSUEPREVAddition/CorrectionEffect of Particle Distribution on Morphological and Mechanical Properties of Filled Hydrogel CompositesMasaki Yanagioka and Curtis W. Frank*Cite this: Macromolecules 2009, 42, 2, 568Publication Date (Web):January 6, 2009Publication History Published online6 January…
The paper presents results of research on the influence of regenerative heat treatment on structure and properties of G17CrMoV5 – 10 cast steel. Investigated material was taken out from a turbine frame serviced for over 250 000 hours (total service time) at the temperature of 535 oC. The cast steel after service revea…
We report a case of 55 year old male patient who presented with recurrent upper abdominal pain following a laparoscopic cholecystectomy. A subsequent diagnostic laparoscopy revealed the presence of a second gallbladder which was initially missed. The peculiarity of his symptoms can in part be explained by the presence…
In this publication, we describe the growth of coherent thin films of calcium carbonate and stearic acid at the liquid-liquid interface. We present a new method to prepare durable, cohesive films. These extended film structures have a thickness of the order of 10 microm. They were characterized by two-dimensional shea…
A single layer of the cationic polyelectrolyte poly(allyamine) hydrochloride (PAH) deposited, using the layer-by-layer technique, on a silicon substrate containing 5 nm oxide layer is investigated by XPS while applying an external potential bias to the sample to control and manipulate the charge built-up on the oxide…
ADVERTISEMENT RETURN TO ISSUEPREVNoteNEXTReduced Excimer Formation in Polyfluorenes by Introducing Coil-like Poly[penta(ethylene glycol) methyl ether methacrylate] Block SegmentsYong Ku Kwon*, Hyun Seok Kim, Hyun Jung Kim, Ju Hyun Oh, Han Sun Park, Yoon Soo Ko, Kyu Bo Kim, and Min Sung KimView Author Information Depar…
The adsorption and reaction of ethanol and acetaldehyde on two-dimensional PdZn alloys on Pd(111) were studied with use of temperature-programmed desorption (TPD) and high-resolution electron energy loss spectroscopy (HREELS). Incorporation of Zn into the Pd(111) surface was found to decrease the dehydrogenation activ…
Comparative investigation of vibrational (IR and Raman) and NMR spectra of L-nitrohistidine monohydrate (L-NH·H 2 O) and L-histidine (L-His) has been performed with allowance for structural data. Nonlinear-optical activity and the range of transparency of L-NH·H 2 O are determined. Influence of nitrogroup on structura…
Abstract The graphite nanosheets/polyaniline (GN/PANI) nanorods composites were fabricated via ultrasonic polymerization of aniline monomer in the presence of GN, which was used as electric filling. The kind of doped acids, the concentration, and the contents of the GN were used as impact factors to the conductivity o…
Phosphonic acid functionalized periodic mesoporous organosilicas were synthesized by co-condensation of 1,2-bis(trimethoxysilyl)ethane and diethoxyphosphorylethyl-triethoxysilane in acidic medium using Brij-76 as a template. Structural characterizations showed that the mesoporous materials with 2-D hexagonal mesostruc…
Dissipative particle dynamics simulations were performed on phosphonic acid-functionalized copolymer melt. This copolymer consists of poly(ether−ether−ketone) and poly( p -vinylbenzylphosphonic acid) blocks. Three different mapping schemes were implemented to obtain the morphology in different length scales. The morph…
The paper presents results of investigation on physico-chemical (among others – mechanical) properties of epoxy coatings subjected to the ageing with ultraviolet radiation and such aggressive media as 20% aqueous solutions of: sodium chloride, potassium hydroxide and sulfuric acid (for 1080 h).