Materials Literature
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Local fluorescence probes based on CdSe semiconductor nanocrystals were prepared and tested by recording scanning near-field optical microscopy (SNOM) images of calibration samples and fluorescence resonance energy transfer SNOM (FRET SNOM) images of acceptor dye molecules inhomogeneously deposited onto a glass substr…
The effects of formation of cyclodextrin inclusion complexes on the photochemical and photophysical properties of zinc phthalocyanine ( ZnPc ) and various peripherally substituted zinc phthalocyanines as well as zinc naphthalocyanine ( ZnNPc ) are investigated. The cyclodextrins employed were the hydroxypropyl-γ-cyclo…
Various oxide powders were prepared by the emulsion combustion method (ECM) using metal precursors, kerosene, and a surfactant. The product particles were characterized by transmission electron microscopy (TEM), nitrogen adsorption, and X‐ray diffraction. Hollow γ‐Al 2 O 3 particles were produced from aluminum nitrate…
Abstract The first examples of trimeric, dimetallic, pure oxalate‐bridged complexes [ox = (C 2 O 4 ) 2− ] have been synthesized and characterized structurally and magnetically for the two new series of crystalline molecular assemblies formulated as (TTF) 4 {M II (H 2 O) 2 [M III (ox) 3 ] 2 }· n H 2 O [for M III = Cr;…
A novel method is developed to objectively evaluate the frictional feel of textiles. A polymeric artificial human finger sensor fabricated from polyvinylsiloxane material em ulates the feeling mechanism of the fingers. This polymeric sensor is conveniently converted into a friction sledge that can be used to measure t…
Abstract. Crops on sandy soils (<5% clay) are exposed to K deficiency due to the small release and high leaching losses of K. Reliable tools are needed to improve the K management in cropping systems with limited K input, such as organic farming where import of nutrients are restricted according to the EC regulatio…
Carbon nanotubes (CNTs) did not exhibit strong interactions with Biliverdin IX beta reductase enzyme (BVRB) in water. With the use of noncovalent functionalization by the surfactant Triton X-100, the surfaces of the CNTs were changed from hydrophobic to hydrophilic. The hydrophilic surface of the CNT-Triton conjugate…
Titanium is a wonder metal, generally considered as one of the most biocompatible and corrosion resistant metals available for clinical applications. Since 1951, when Leventhal /1/ first published an article on the orthopaedic application of this metal, research activity and clinical experience resulted in new develop…
Abstract The deformation behavior of copper during equal channel angular pressing (ECAP) was calculated using a three-dimensional version of a constitutive model based on the dislocation density evolution. Finite element simulations of the variation of the dislocation density and the dislocation cell size with the num…
To use the unique properties of nanocrystalline ferrites in magneto-optical devices, it is important that they have a narrow particle size distribution. The present paper illustrates the potential of the microemulsion technique to synthesise different nanocrystalline ferrites (nickel ferrites, zinc ferrites) with such…
Abstract Hydrogen storage in MWNT was enhanced via the catalytic activity of NiMgO. The magnitude of the hydrogen to metal ratio for the MWNT/NiMgO system, combined with temperature programmed adsorption and desorption studies, showed hydrogen spillover from the catalyst to the carbon surface. Metal doping combined wi…
The crystal structures of LaCo 0.5 Ni 0.5 O 3−δ and LaCo 0.5 Fe 0.5 O 3−δ solid solutions, studied by powder X-ray diffraction, were found to be rhombohedral perovskite. The unit cell parameters in the hexagonal setting are a =5.491(6) Å and c =13.231(3) Å for LaCo 0.5 Fe 0.5 O 3−δ , and a =5.464(4) Å and c =13.125(3)…
Deliberate self-injection of metallic mercury into subcutaneous tissue is uncommon. A 41-year-old lady with a history of schizophrenia was admitted to our hospital after deliberate injection of metallic mercury into her right wrist and antecubital fossa. Physical examination was unremarkable except for the injection m…
Abstract Poly( ε ‐caprolactone) (PCL) nanocomposites were prepared using two different types of organically modified nanosilicates by melt intercalation with an internal mixer. Dynamic mechanical analysis revealed possible structural changes in the nanocomposites even during the small deformation occurring during shea…
Part I of this series presented a new model for predicting the flow resistance of monofilament fabrics. In this part, the model is applied to the flow resistance of multi filament fabrics. Experiments show that flow resistance in multifilament fabrics can be modeled in general, but it appears that the method is not su…
We investigate the flow of a suspension through a constriction by means of the mesoscopic technique known as dissipative particle dynamics (DPD). The dispersed phase was modeled as a set of soft spheres interacting through a conservative force while suspended and continuum phases interact via DPD forces. It is shown t…
Abstract A series of aromatic polyimides composed of well‐defined conjugation units were synthesized form 5,5′‐bis(4‐aminophenyl)‐2,2′‐bifuryl (PFDA) and 2,2′‐bis(furyl) benzidine (FurylBZ) with various dianhydrides. The synthesized polyimides emit blue to green light with a quantum yield of 7.3–14.9%, depending on th…
In order to obtain a better understanding of the mechanism of stress corrosion cracking, an improved microsampling technique was applied to measurements of the local solution chemistry at the growing tip of a stress corrosion crack. Efforts were made to improve the microsampling technique to obtain more accurate infor…
In transforming fabrics into garment it is necessary to know, besides the manner of processing, the behaviour of the fabric in particular manufacturing processes. It is necessary to define why and how fabrics behave in a particular way when exposed to various strains. The answers to these questions are obtained by inv…
Abstract Differentiating flax and hemp is a long-time analytical problem, which is becoming more and more relevant with the wider loading of bast fibres. Flax and hemp are very similar fibres in all aspects, and their differentiation is often controversial. In this work, the literature is researched for the classic me…