Materials Literature
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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…
Negative-index metamaterials (NIMs) at near infrared wavelengths (~2 mum) are fabricated with circular, elliptical and rectangular holes penetrating through metal/dielectric/metal films. All three NIM structures exhibit similar figures of merit; however, the transmission is higher for the NIM with rectangular holes as…
To identify surface phases that could play a role for the epoxidation of ethylene on Ag catalysts we have studied the interaction of Ag(111) with O(2) at elevated pressures. Experiments were performed using high-pressure scanning tunneling microscopy (STM) at temperatures between 450 and 480 K and O(2) pressures in th…
Deuterium NMR spectroscopy is a very powerful technique for studying partially or totally ordered systems, such as liquid crystals (LCs) and polymers. LCs represent a branch of the most general class of soft materials, with peculiar physical and chemical properties which attracted scientific attention for their potent…
This article highlights my group's recent progress in developing a new class of computer simulation tools for studying the equilibrium self-assembly and thermodynamic properties of complex polymeric fluids. Our approach utilizes well known formal methods for converting "particle-based" statistical mechanical models of…
In this study poly(ethylene terephthalate) (PET)/clay nanocomposites with two different weight percen- tages of montmorillonite (MMT) have been prepared by melt-extrusion technique. The X-ray diffraction (XRD) patterns and transmission electron microscopic (TEM) images reveal the formation of intercalated nano- compos…