Materials Literature
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Donor–acceptor purines have been prepared that show near unity fluorescence quantum yields in organic solution, a step toward using simple biorelevant heterocycles in optoelectronic and photonic applications.
Core–shell nanoparticles based on metallic ReO3 nanoparticles have been prepared for the first time. The nanoparticles with the metallic shell viz. ReO3@Au and ReO3@Ag were prepared by the reduction of metal salts over ReO3 nanoparticle seeds. ReO3@SiO2 and ReO3@TiO2 core–shell nanoparticles were prepared by the hydro…
We describe the selective measurement of extracellular glutamate concentration in rodent brain using ceramic-based platinum microelectrode arrays (MEAs) coated with electropolymerized, over-oxidized polypyrrole (OPP) as a permselective barrier to interference from dopamine and ascorbate. OPP-coated MEAs displayed simi…
Unusual gelation of a number of organic solvents by allyl cholate and other simple esters of cholic acid is reported. These gels were characterized by SEM, AFM, polarizing optical microscopy (POM), X-ray powder diffraction and other techniques. Electron micrographs of the xerogels revealed the presence of highly entan…
Nickel multiwalled carbon nanotube (MWCNT) composite plating was studied using a sulfamate-based bath. The effects of additives, current density, and bath temperature on the microstructure of Ni-MWCNT composite films were examined. The content of MWCNTs and internal stress of the composite films were also investigated…
Colloidal quantum dots (QDs) are now commercially available in a biofunctionalized form, and Förster resonance energy transfer (FRET) between bioconjugated dots and fluorophores within the visible range has been observed. We are particularly interested in the far-red region, as from a biological perspective there are…
Bismuth ruthenate and erbia-stabilized bismuth oxide (ESB) composites were studied as prospective cathode materials for solid oxide fuel cells (SOFCs) operating at intermediate temperatures (IT). Phase chemistry between bismuth ruthenate and ESB was studied using differential thermal analysis and X-ray diffraction (XR…
Self-cleaning surfaces have received a great deal of attention, both in research studies and commercial applications. Both transparent and non-transparent self-cleaning surfaces are highly desired, as they offer many advantages and their potential applications are endless. As in many other cases, also in the case of s…
The present investigation aims to establish an environmentally safe condition for felt- and shrink-proofing of wool fibres. This has been performed by using the ‘hydrogen peroxide/tetraacetyl ethylene diamine’, or ‘hydrogen peroxide/nonanoyl benzene sulphonate’ system to liberate the respective organic peracids. The i…
At present chemical (AOPs) and electrochemical (EAOPs) advanced oxidation processes with ability to destroy organic pollutants in waters are being developed. These methods are based on the production of hydroxyl radical ( OH) as oxidant. In AOPs OH radical can be obtained from Fenton's reaction between Fe 2+ and H 2 O…
Cu(1+)-clusters on a CeO(2) support, which were prepared by hydrothermal synthesis using cetyltrimethylammonium bromide (CTAB), were found to be highly active and selective for preferential oxidation (PROX) of CO in excess H(2) with H(2)O and CO(2) under practical fuel-cell operating conditions.
Abstract The accumulation process of sulfate reducing bacteria (SRB) biofilms established in anaerobic stagnant batch bioreactors on the surface of carbon steel and the nutrient transport and corrosion products distribution in it were characterized by X‐ray Photoelectron Spectroscopy (XPS). In addition, the corrosion…
Over the last two decades, lipid supramolecular association to particles has been systematically studied on latex, silica or drug particles over a range of experimental conditions in order to achieve optimal bilayer deposition onto particles. The difficult step of vesicle disruption, especially for bilayers in the rig…
We aimed to detect the potential genotoxic effects of CoFe2O4 particles (CoFe), of different size, by means of the micronucleus test (MN) in human lymphocytes for the possible use in hyperthermic treatments. CoFe of 5.6 nm (CoFe06) showed a significant decrease of the cytokinesis blocked proliferation index (CBPI) (p<…
We have studied crystal structure and high temperature thermoelectric properties of delafossite-type oxide CuFe1–xNixO2 (0 ≤ x ≤ 0.05). There is no significant difference in the lattice parameter a among the Ni-doped samples and CuFeO2 due to the decrease of Fe–O distance and simultaneous increase of O–Fe–O angle by t…
Triphenylamines with one, two, or three 3,4-ethylenedioxythiophene (EDOT) substituents attached to the para-phenyl carbons have been prepared via metal-catalyzed cross-coupling reactions. The amines with two or three EDOTs (compounds 4 and 3, respectively) can be oxidatively electropolymerized (via intermolecular coup…
Electrodes have been processed as composites from mixtures of single-walled carbon nanotubes (SWCNT) and a commercial activated carbon (MAXSORB). SWCNT shows higher electric conductivity and lower specific capacitance compared to MAXSORB. The relative content of the two carbons has been varied in the range . With the…
Both complete and incomplete wetting were considered for the spreading of liquid drops on solid substrate. The liquid droplets were silicone oil, glycerine and hexadecane and the solid substrates are glass, polystyrene and polymethyl methacrylate (PMMA). Wetting was characterized by measuring the contact angle formed…
Abstract. Thin films of composites made by incorporation of silicon oxide (SiO2) or titanium oxide (TiO2) nanoparticles into poly[2-methoxy-5-(2’-ethylhexoxy-p-phenylene vinylene] (MEH-PPV) were deposited by spin-coating from p-xylene solutions and their optical properties were investigated. SEM images showed that dif…
Electrospinning method was used to fabricate poly(L-lactide-co-D,L-lactide) (PLDLA) nanofiber non-woven membranes. The structure and morphology of the electrospun membranes were investigated by a scanning electron microscope (JEOL) after a gold coating. The diameter of the electrospun fiber was measured by Adobe Photo…