Materials Literature
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The transport properties of B-doped single-walled carbon nanotubes (SWNTs) are studied from both experimental and theoretical standpoints. Experimentally, it is found that the semiconducting behavior of SWNTs is drastically changed after B-doping, and the unusual abrupt current drops are observed at low temperatures,…
PURPOSE: To develop a sodium-MRI ((23) Na-MRI) method for bilateral renal sodium concentration (RSC) measurements in rat kidneys at 9.4 Tesla (T). MATERIALS AND METHODS: To simultaneously achieve high B1 -field homogeneity and high receive sensitivity a dual resonator system composed of a double-tuned linearly polariz…
In this study, Pergularia milkweed fibre (70%), cotton fibre (30%) core and 100% cotton fibre sheath DREF-3 core yarns of 74 tex were produced using different spinning parameters in order to understand their effect on yarn properties. Box–Behnken design was used for the optimization of core ratio, drum speed and sucti…
Abstract Phosphorus‐containing thermosetting resins derived from high oleic sunflower oil were prepared through phospha‐Michael addition of a difunctional secondary phosphine oxide, the 1,3‐bis(phenylphosphino)propane dioxide on the α,β‐unsaturated ketone derived from high oleic acid (ETR). The aim of this approach wa…
Particles with hierarchical porosity can be formed by templating silica microparticles with a specially designed surfactant micelle/oil nanoemulsion mixture. The nanoemulsion oil droplet and micellar dimensions determine the pore size distribution: one set of pores with diameters of tens of nanometers coexisting with…
Although wood–plastic composites (WPCs) are materials widely used in the construction industry, their durability constitutes a serious issue especially when used for outdoor applications. Therefore, this work gives account on the effect of biotic and abiotic degradation agents on two different WPCs prepared from recyc…
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Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation M. Bailly, M. Kontopoulou; Linear viscoelastic properties of ethylene–octene copolymer/nanosilica…
The thermal degradation behaviors of poly(vinyl alcohol) (PVA) and PVA/zinc oxide (ZnO) composite are investigated using differential thermal analysis (DTA). The degradation activation energy ( E d ), frequency factor ( k o ) and Avrami exponent ( n) as thermal kinetic parameters are calculated from the DTA results. T…
Structural, magnetization, and magnetotransport measurements have been performed for anion deficient La0.5Ba0.5Co1−xFexO3−δ (x≤0.4) and La1−yBayCoO3−δ (0.5≤y≤0.6) perovskites. It has been found that the iron doped compositions with x≤0.23 are predominantly ferromagnetic. The Curie point and magnetization are slightly…
Abstract A series of hybrid compounds based on polyoxometalates (POM), namely, [Ln 4 (pdc) 4 (H 2 O) 16 ][PMo 11 VO 40 ] · 2H 2 O ( 1 – 5 ) and [Ln 4 (pdc) 4 (H 2 O) 16 ][HPMo 10 V 2 O 40 ] · H 2 O ( 6 , 7 ) (Ln = La, Ce, Pr, Nd, Sm for 1 – 5 , respectively, and Ln = La and Ce for 6 and 7 , respectively; H 2 pdc = pyr…
We report the structural, magnetic, and electronic transport properties of SrFe${}_{2\ensuremath{-}x}$Cu${}_{x}$As${}_{2}$ single crystals grown by a self-flux technique. Both SrCu${}_{2}$As${}_{2}$ and SrFe${}_{2}$As${}_{2}$ crystallize in a ThCr${}_{2}$Si${}_{2}$-type (122-type) structure at room temperature, but ex…
We describe a controllable method to fabricate hexagonally close-packed Langmuir-Blodgett (LB) monolayers with stearic acid (SA) as co-surfactant and methanol as co-solvent. The optimal SA concentrations and volume ratios of chloroform to methanol are 0.8 mg/mL and 3:1 for particles of 140 nm, 0.50 mg/mL and 4:1 for p…
Using density functional theory, we show that the band gap of graphene can be induced via deposition on a layered ZnO substrate. This phenomenon can be understood based on the symmetry-breaking substrate potential, which leads to the nonequivalence of sublattices in graphene. With the decrease of interlayer spacing, t…
The MTT (3-(4,5-dimethyl-2-thiazol)-2,5-diphenyl-2H-tetrazolium bromide) reduction method is widely used for measuring cell viability and proliferation. However, when MTT was used to study cells on silicon nanowire arrays (SiNWAs), the measured viability was much higher than normal values, resulting in a misleading es…
The second-generation poly(ethylene imine) dendrimer (L), based on ammonia as the initiating core molecule, forms stable metal complexes in aqueous solution. Speciation of the complex species formed and determination of the relevant stability constants were performed by means of potentiometric titration in 0.10 M NMe(…
Abstract This study investigates the role of ammonium chloride in the process of preparing poly (urea‐formaldehyde) (PUF) microcapsules using the one‐step method. Scanning electron microscopy (SEM) and optical microscopy (OM) were used to observe the morphology of the microcapsule. The results showed that the addition…
We have performed Raman-scattering measurements under high hydrostatic pressure on CdO thin films grown by metal-organic vapor phase epitaxy on sapphire substrates. The pressure dependence of the second-order Raman bands is discussed in terms of ab initio lattice-dynamical calculations, which allow us to obtain mode G…
The efficiency of triplet-sensitized photon upconversion in ionic liquids was previously found to be dependent on the type of ionic liquid employed. The properties of the intermolecular energy transfer need to be understood in order to improve the upconversion efficiency. Here, we investigate the kinetics of the tripl…
Water-solubilized quantum dots have led to a promising application in cellular labeling and biological imaging. The physicochemical properties of water-solubilized quantum dots, particularly in a physiological environment, are strongly dependent on their size. In this paper, we systematically studied the stability of…