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。
A three-dimensional copper nanostructure architecture (3DC1) coated uniformly with a tin film was fabricated by electrodeposition. In these trials, a pyrophosphate bath was used for tin plating, and the effects of polyethylene glycol and formaldehyde additives on the morphology of the deposited tin were investigated.…
A continuing focus of gold catalyst work is attempting to correlate catalytic activity and selectivity with a nanoparticle’s physical properties. These properties include particle size, particle shape, gold oxidation state, support oxidation state, particle stability, and catalyst electronic structure. Electron micros…
We prepared polycaprolactone (PCL) and polyhydroxybutyrate/valerate (PHBV)/polycaprolactone (PCL) 2 mm vascular grafts using electrospinning. The structure of the graft surface along with the physico-mechanical and viscoelastic properties were investigated by scanning electron microscopy, universal testing machine (n=…
A method for modifying ultra-high-molecular-weight polyethylene with nanoparticles of titanium subgroup metal oxides was considered, which consists in the interaction of organic oxygen donors with halides of titanium and other titanium subgroup metals directly in the polymer matrix. Forming in the polymer matrix, nano…
The heat capacity of Mg(Fe 0.8 Ga 0.2 ) 2 O 4 solid solution was measured by differential scanning calorimetry (DSC) at 353–1153 K. The thermodynamic functions (entropy and enthalpy changes) were calculated based on smoothed heat capacity values. No heat capacity anomalies were found in the temperature range under stu…
Objective: Olmesartan is a BCS class II anti-hypertensive drug with limitations of low aqueous solubility and bioavailability. Present work was designed to use complexation as an approach to explore the ability of modified cyclodextrin such as sulphobutyl ether 7 β-cyclodextrin (SBE 7 β-CD) to develop an inclusion c…
Segments of the potential energy surfaces corresponding to isomers of the C6Al38 cluster with six carbon atoms located in different positions at the surface and inside the aluminum cage have been calculated by the density functional theory method. The energies and structural and vibrational characteristics of the isom…
By focusing propagating surface plasmons, electromagnetic energy can be delivered to nanoscale volumes. In this context, we employ electron energy loss spectroscopy in a scanning transmission electron microscope to characterize the full plasmonic mode spectrum of a silver thin film tapered to a sharp tip. We show that…
Nanopartikel Nikel Ferit (NiFe2O4) telah disintesis dengan metode kopresipitasi dengan memvariasi konsentrasi NaOH dan suhu sintesis. Struktur kristal, ukuran partikel, dan morfologi dari sampel dianalisa menggunakan X-ray diffraction (XRD) dan transmission electron microscopy (TEM). Ukuran butir pada konsentrasi NaOH…
Photoactive graphene fabricated by chemical functionalization of pristine graphene with different light-harvesting molecules has become one of the most exciting topics of graphene research in the last few years, which remarkably sustains and expands the graphene boom due to its great potentials in various applications…
The reaction of copper(II) pivalate with aminopropyltrimethoxysilane in molar ratio Cu(II): RNH 2 = 1: 4 leads to the corresponding complex 1. The combined gelation of complex 1 and Si(OCH 3 ) 4 produces lyogels whose structure incorporates Cu(II). The supercritical drying of the lyogels in CO 2 results in aerogels wi…
Polymers in a melt may be subject to topological constraints, as in the example of unlinked polymer rings. How to do statistical mechanics in the presence of such constraints remains a fundamental open problem. We study the effect of topological constraints on a melt of directed polymers, using simulations of a simple…
Methods for the synthesis of lanthanide manganites LnMnO 3 and LnMn 2 O 5 from individual molecular precursors were developed. The thermolysis of the neodymium complex from the series of [Mn 3 Ln 2 (Piv) 10 (NO 3 ) 2 (MeCN) 2 ] n compounds (Ln = Nd ( 1 ), Sm ( 2 ), Eu ( 3 ), Gd( 4 )) was shown to yield a NdMnO 3 –NdMn…
Recycled polystyrene wood flour composites were developed with three different polystyrene maleic anhydride oligomers used as coupling agents. The thermal properties, morphology, kinetics, and thermodynamic parameters were investigated. The use of oligomers clearly improves the interfacial adhesion with the polymer ma…
The orientation of liquid crystal (LC) molecules confined in polydimethylsiloxane micro-channels, which are produced using mould-replica technique, with a rectangular cross section, is studied. The rod-like molecules of the LC adopt the vertical anchoring at every surface of the channels. The macroscopic alignment of…
The present study is concerned the sensing behavior of ZnO nanorods thin films application to humidity sensors. ZnO nanorods were fabricated on a glass substrate by sol-gel spin coating technique. The crystal structure of the resulting thin films was investigated by X-ray diffraction (XRD). Minimum crystalline grain s…
I propose an expression for the electromagnetic wave impedance of a two-dimensional atomic crystal, and I deduce the Fresnel coefficients in terms of this quantity. It is widely known that a two-dimensional crystal can absorb light, if its conductivity is different from zero. It is less emphasized that they can also s…
Tetrahydrodipicolinate N-succinyltransferase (DapD) is an enzyme involved in the biosynthesis of l-lysine by converting tetrahydrodipicolinate into N-succinyl-l-2-amino-6-oxopimelate, using succinyl-CoA as a cofactor. We determined the crystal structure of DapD from Corynebacterium glutamicum (CgDapD). CgDapD function…
We explore a model of armchair graphene nanoribbons tuned by functionalizing the edge states. Edge modifications are modeled by changing the electronic energy of the edge states in specific periodic patterns. The model can be considered to mimic a controlled doping process with different elements. The band structure,…
Abstract Liquid crystal (LC) cells with periodic alignment distributions were fabricated using chiral nematic LCs (N*LCs), which were prepared using mixtures of a nematic LC and a chiral dopant, along with photoreactive liquid crystalline polymer (PLCP) films. Periodic structures were formed by polarization holographi…