Materials Literature
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Electrical/optical measurements have been carried out to study the dynamic behaviour of discharge on an ice surface. Significant differences in behaviour between positive and negative arcs have been revealed during discharge propagation. Also, its root structure, shape and velocity were found to be strongly polarity d…
Enstatite (MgSiO3) ceramic powders were synthesised by a low-temperature initiated self-propagating, gas-producing solution combustion process. The prepared powders were characterised by powder X-ray diffraction, scanning electron microscopy and Brunauer–Emmer–Teller specific surface area measurements. Defect centres…
We present the study of magnetization, thermal expansion, specific heat, resistivity, and ac susceptibility of ${({\text{Pr}}_{1\ensuremath{-}y}{\text{Eu}}_{y})}_{0.7}{\text{Ca}}_{0.3}{\text{CoO}}_{3}$ cobaltites. The measurements were performed on ceramic samples with $y=0.12--0.26$ and $y=1$. Based on these results,…
This study makes an objective evaluation of the wetness of pantiliners based on their physical properties and a subjective evaluation of the wetness of commercially produced pantiliners, based on subjective hand evaluation tests and wear trials performed by female subjects. The heat, air, and water transport propertie…
A clear description of the paths of thermal decomposition of complex borohydrides represents a crucial step forward to their utilisation as a reservoir of hydrogen and hence as materials for solid state hydrogen storage. We present in this work a theoretical study of the possible paths of decomposition of LiBH4 by mea…
A novel method of thermo-controlled emulsion polymerization has been employed to synthesize spherical polyelectrolyte brushes that consist of a solid polystyrene core and a poly (acrylic acid) (PAA) shell covalently attached on the core surface densely by one end. The growth of brushes from the core surface was monito…
The permittivity and permeability of the Tb-doped and undoped Fe core-shell nanoparticles were investigated for frequencies from 2 to 18 GHz. The particles were synthesized by arc discharge and contain some oxygen, probably in the form of Fe2O3, Fe3O4, and Tb2O3, whereas the core material is Fe. Both the electromagnet…
This study investigates, for the first time, a photoerasable and photorewritable spatially-tunable laser using a dye-doped cholesteric liquid crystal (DDCLC) with a photoisomerizable chiral dopant (AzoM). UV illumination via a photomask with a transmittance-gradient can create a pitch gradient in the cell such that th…
Scaffolds used for tissue engineering are made to mimic natural surroundings of tissues, the extracellular matrix (ECM). The ECM plays a large part in maintaining the structural integrity of the connective tissue. When producing a tissue in the laboratory, structural integrity of the cells is ensured only when a biomi…
Over the past couple of decades, metal-containing polymers (metallopolymers) have gained considerable interest for the creation of functional soft materials with unique and tunable properties. For this purpose, supramolecular chemistry, as demonstrated in Nature, is regarded as the archetype showing the ordered assemb…
A Comment on the Letter by G. Brambilla et al., Phys. Rev. Lett. 102, 085703 (2009). The authors of the Letter offer a Reply.Received 11 May 2009DOI:https://doi.org/10.1103/PhysRevLett.104.169601©2010 American Physical Society
The magnetic behaviour of the compounds containing the [Ru(2)(DPhF)(3)(O(2)CMe)](+) ion (DPhF(-)=N,N'-diphenylformamidinate) shows a strong dependence on the nature of the ligand bonded to the axial position. The new complexes [Ru(2)(DPhF)(3)(O(2)CMe)(OPMe(3))][BF(4)]0.5 CH(2)Cl(2) (1 0.5 CH(2)Cl(2)) and [Ru(2)(DPhF)(…
The structure, stability, energy partition analysis, and charge redistribution of endohedral complexes formed between Au 32 cluster with alkali metal cations, such as Li +, Na +, K +, Rb +, and Cs +, have been investigated using the density functional theory method. All alkali metal cations can be stably encapsulated…
The crystal structure and some magnetic properties were investigated for polycrystalline samples of LaMn1−xFexO3+y, prepared by solid-state reaction in air. All samples show the ORT-2 orthorhombic structure that suppresses the Jahn–Teller distortion and favors a ferromagnetic (FM) superexchange interaction between Mn3…
The interaction of gold particles with a silica surface is investigated using a combination of theoretical and experimental techniques. It is found that the physisorption strength of gold on silica decreases with increasing chloride concentration at the surface, with increasing cluster size, and with decreasing oxidat…
Regenerated bamboo, also known as bamboo viscose, is a man-made cellulose fibre that has recently appeared on the market as an apparel and home-furnishing textile. The products are marketed as having exceptional properties such as superior comfort and hand, as well as antimicrobial properties. Apart from the claimed “…
Salicylurate (SU) is the major metabolite in urine of acetylsalicylic acid (aspirin) and can be used as a metric to monitor aspirin pharmacokinetics and as an indicator of appendicitis, anemia, and liver disease. Detection in urine and plasma currently requires solvent extraction or other sample handling prior to anal…
We report the synthesis of β−Co(OH)2 nanosheets using microwave assisted hydrothermal and conventional chemical reaction methods. A magnetic transition at an onset temperature, T1∼96 K, and a sign of antiferromagnetic state transition at the Néel temperature, TN=9∼10 K, can be determined from M-T curves and M-H curves…
As a "green chemistry" tool, ultrasound irradiation of high intensity was successfully applied to formation of cerium/aluminum oxide anticorrosion protective layers on metal surfaces. The mechanism of metal surface modification in the presence of cerium(III) aqueous solution results from two components: activation of…
A procedure based on microwave-induced combustion (MIC) was applied for carbon nanotube (CNT) digestion and further determination of La and Ni by inductively coupled plasma optical emission spectrometry (ICP OES). Samples (up to 400 mg) were completely combusted at 20 bar of oxygen, and a reflux step was applied to im…