Materials Literature
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In the present contribution, four transition metal ferrites, namely the manganese perovskite MnFeO3 and the nickel, cobalt and zinc spinels NiFe2O4, CoFe2O4, and ZnFe2O4, were investigated through XPS (X-ray Photoelectron Spectroscopy). The synthesis route for the analyzed materials involved the precipitation of metal…
Pure and Mo-doped WO 3 films were formed on ITO-coated glass substrate held at 473 K by RF magnetron sputtering technique. The structural, morphological, and optical properties of pure and Mo-doped WO 3 thin films have been systematically studied. The structural properties revealed that the pure WO 3 films exhibited a…
The polyzwitterionic brushes comprised of poly(2‐methacryloyloxyethyl phosphorylcholine) (pMPC) segments, which are used for surface modification of polymers and biocompatible coatings, were investigated. In this work, reverse surface‐initiated atom transfer radical polymerization (RATRP) of zwitterionic 2‐methacryloy…
In this study, we introduced photolabile 4‐(4‐(1‐hydroxyethyl)‐2‐methoxy‐5‐nitrophenoxy)butyric acid (HMNB) to prepare photoresponsive nanogels. Hyaluronate (HA) grafted with 4‐(4‐(1‐hydroxyethyl)‐2‐methoxy‐5‐nitrophenoxy)butyric acid (HA‐ g ‐HMNB) was self organized in aqueous solution. Interestingly, HA‐ g ‐HMNB nan…
Fibroblasts in the attached collagen matrix are in a pro-survival, pro-proliferative state relative to fibroblasts in the released collagen matrix, such that matrix cell number increases in the former over time. Gene array data from attached vs. released matrices were analyzed for putative networks that regulated matr…
Temperature-dependent conductivity and thermopower measurements are carried out for undoped and In-doped CuO thin films. We investigate the effects of In-doping on carrier transport properties of CuO thin films in the temperature range of 300 < T < 400 K. Carrier transport is dominated by simple thermally activated co…
A localized surface plasmon resonance (LSPR) sensor based on self-assembled Au nanoparticle (AuNP) multilayers is developed for the detection of volatile terpenes that are considered to be biomarker gases during the growth process of plants. The sensor is fabricated by an alternate deposition of a bifunctional dithiol…
A detailed structural and chemical characterization study has been performed, both at the micrometer and nanometer scale levels, throughout the different steps of preparation of a catalytic device consisting in Co 3 O 4 /La-modified-CeO 2 /Al 2 O 3 powders washcoated onto a honeycomb-type cordierite monolith. High-res…
We present a developed femtosecond laser enhanced wet chemical etching method to fabricate close-packed and high numerical aperture (NA) microlens arrays (MLAs). Its ability to fabricate 100% fill factor MLAs with controllable NA is demonstrated and the maximum NA value of the lenses reaches to 0.47. This letter provi…
A didecyloxy-substituted poly(phenylenedicyanovinylene), DiCN–PPV, has been synthesized. The dicyano-substituted vinylene units exist in both trans and cis (∼65:35) conformations as determined by 1 H NMR analysis, and cannot be converted to all trans due to the presence of a thermodynamic equilibrium of the two confor…
ABSTRACT The fatigue results of a high‐pressure die cast of AZ91D magnesium alloy revealed the presence of different types of casting defects, which account for the large scattering in the number of cycles until failure. In this paper, this magnesium alloy has been analysed, and in an effort to reproduce the same surf…
Nanofibrous boehmite materials with controlled morphology were synthesized without use of any surfactant by careful tuning of the pH value of the precursor, temperature, and time length of the hydrothermal treatment, followed by a series of characterizations. When the pH value was controlled at 9.5 and hydrothermal tr…
Metal-phthalocyanine porous sheets have uniformly dispersed metal sites in Pc framework, making absorption happen naturally. Here, we explore the effects of absorption of chlorine atoms on magnetism in transition metal embedded phthalocyanine (poly-TMPc) sheets with TM = Cr, Mn, and Fe. We show that when one Cl is abs…
The aim of this research was to synthesize a hydrogel for wound dressing by mixing of polyvinyl alcohol (PVA) and chitosan (CTS) and processed by combination technique of freezing-thawing and irradiation by gamma ray, and to study of its properties. PVA aqueous solution 10% (w/v) was mixed with 2% (w/v) chitosan (CTS)…
The analysis of diatom frustules by fluorescence microscopy and, in particular, confocal laser scanning microscopy requires adequate cleaning and staining methods prior to imaging. Here, a set of tools for an imaging procedure for fossil and living diatoms is presented. A simple and inexpensive cleaning protocol and f…
Abstract Review: 221 refs.
The mineral series triplite-zwieselite with theoretical formula (Mn2+)2(PO4)(F)-(Fe2+)2(PO4)(F) from the El Criolo granitic pegmatite, located in the Eastern Pampean Ranges of Córdoba Province, was studied using electron microprobe, thermogravimetry, and Raman and infrared spectroscopy. The analysis of the mineral pro…
Adhesion energies, atomic structures, electronic states, and bonding nature of the La2CoMnO6(001)/SrTiO3(001) and La2CoMnO6(001)/LaAlO3(001) interfaces are systematically investigated from first principles by taking into account strain effect, electron correlation effect, and polarity continuity. A total of sixteen ca…
Polystyrene- block -polyethylene- block -polystyrene (SES) copolymers were blended with homopolymer polystyrene (PS), and films of the blend were solvent cast using a doctor blade. The nonporous SES and PS films were exposed to both tetrahydrofuran (THF) and methanol (MeOH) in an alternating fashion for 1 min interval…
The interfacial behavior of the model amyloid peptide octamer YYKLVFFC (peptide 1) and two other amyloid peptides YEVHHQKLVFF (peptide 2) and KKLVFFA (peptide 3) at the metal|aqueous solution interface was studied by voltammetric and constant current chronopotentiometric stripping (CPS). All three peptides are adsorbe…