Materials Literature
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We demonstrate light-induced switching of the coercive field of true nano-stabilized Au:Fe nanoparticles with exceptionally good magneto-optical response. Two separate processes are identified, both exploitable for photocommutation. This innovative material allows combining appealing photoswitching properties with the…
Plasmon hybridization theory (PHT) is an analytical model developed for understanding plasmonic interactions within complex metallic nanostructures, and gives a useful insight for optimizing design parameters. However, this theory is based on the electrostatic limit, which restricts the model to nanostructures much sm…
Semiconducting networks were found to be extremely sensitive to charges, which promises the electrical detection of ultralow concentrations of DNA (down to 0.1 fM, ∼100 DNA molecules).
Thirty π-electron-expanded hemiporphyrazines 1a-c have been prepared by crossover condensation reaction of 2,5-diamino-1,3,4-thiadiazole and the corresponding phthalonitrile (3) or diiminoisoindoline (4) derivatives. The expanded azaporphyrin hexamers have been unequivocally characterized by means of spectroscopic, cr…
An electron diffraction technique called D-STEM has been developed in a transmission electron microscopy/scanning transmission electron microscopy (TEM/STEM) instrument to obtain spot electron diffraction patterns from nanostructures, as small as ∼3 nm. The electron ray path achieved by configuring the pre- and postsp…
Use of silver nanoparticles (SNPs) for control of implant-associated infection is a promising strategy, if optimum antimicrobial yet nontoxic dose to mammalian cells is identified. This study was done to determine essential quantity of SNPs, which stimulate antimicrobial activity without cytotoxicity, when immobilized…
In this study, structural, physical and mechanical properties of cotton-Tencel and cotton-Promodal blended ring, compact and vortex spun yarns were compared. Yarn properties such as hairiness, unevenness, imperfections, diameter, density, roughness, roundness, breaking force and elongation were evaluated. In general,…
This Feature Article provides an overview of the distinctive nanostructures that aniline oligomers form and the applications of these oligomers for shaping the nanoscale morphologies and chirality of conducting polymers. We focus on the synthetic methods for achieving such goals and highlight the underlying mechanisms…
Single crystalline CeO2 powder was prepared by precipitation-hydrothermal technique. The hydrothermal treatment temperature and time were the two parameters chosen to observe their effect on nature of ceria. The synthesized samples were characterized for structural, optical, and electrical properties using X-ray diffr…
The role of electrons and holes in the electronically excited oxidation of adsorbed CO on TiO(2)(110) has been investigated by tuning the surface electron and hole availability by the adsorption of Cl(2) or O(2). The presence of an electron acceptor (Cl(2) or O(2)) on the TiO(2)(110) surface causes upward band bending…
Porous, tubular, flexible, and elastic poly(trimethylene carbonate) (PTMC) scaffolds (length 8 cm and inner diameter 3 mm) for vascular tissue engineering were prepared by means of a dip-coating and particulate leaching procedure. Using NaCl as porogen, scaffolds with an average pore size of 110 μm and a porosity of 8…
Single crystal and powder samples of the series of iron chalcogenide superconductors with nominal composition, Fe((1.15))Te((1-)y)S(y), are found to form for 0 ≤ y ≤ 0.15. They crystallize in the tetragonal anti-PbO structure, which is composed of layers of edge-shared Fe(Te, S)(4) tetrahedra. For y = 0, Fe(1+x)Te (x…
Localized carbon dioxide (CO2) corrosion is the most dangerous type of internal corrosion to mild steel pipelines in the oil and gas industry since the penetration rate of localized corrosion can be one or more magnitudes higher than that of uniform corrosion. In this study, the focus is on propagation of localized CO…
The aim of this article is to review current knowledge related to the synthesis and characterization of sol gel-derived SBA-16 mesoporous silicas, as well as a review of the state of the art in this issue, to take stock of knowledge about current and future applications. The ease of the method of preparation, the orde…
RATIONALE AND OBJECTIVES: The donor atoms that bind to gadolinium in contrast agents influence inner-sphere water exchange and electronic relaxation, both of which determine observed relaxivity. The effect of these molecular parameters on relaxivity is greatest when the contrast agent is protein bound. We sought to de…
Polyurethane foam is currently used as an exudate absorptive wound dressing material. In this study silver (Ag) nanoparticles were incorporated into electrospun polyurethane (PU) nanofiber to enhance the antibacterial as well as wound healing properties. The electrospinning parameters were optimized for PU with and wi…
ADVERTISEMENT RETURN TO ISSUEPREVCommunication to the...Communication to the EditorNEXTTough Polylactide Graft CopolymersGrayce Theryo‡, Feng Jing†, Louis M. Pitet†, and Marc A. Hillmyer*†View Author Information† Department of Chemistry‡ Department of Chemical Engineering and Materials Science, University of Minnesota…
Piezoelectric 0.65Pb(Mg(1/3)Nb(2/3))O(3)-0.35PbTiO(3) (PMN-35PT) thick film with a thickness of approximately 12 µm has been deposited on the platinum buffered Si substrate via a sol-gel composite method. The separation of the film from the substrate was achieved using a wet chemical method. The lifted-off PMN-35PT th…
Irradiation with Pb ions was used to study the effect of disorder on the in-plane London penetration depth, $\ensuremath{\lambda}(T)$, in single crystals of $\text{Ba}{({\text{Fe}}_{1\ensuremath{-}x}{T}_{x})}_{2}{\text{As}}_{2}$ $(T=\text{Co},\text{ }\text{Ni})$. An increase in the irradiation dose results in a monoto…
The synthesis, structures, and ring-opening polymerization (ROP) capability of a wide range of sulfonamide-supported group 4 amide, alkyl, and alkoxide complexes, varying in sulfonamide N-substituent, metal, coordination number, and geometry, are reported. Reaction of Ti(NMe 2 ) 4 or Ti(NMe 2 ) 2 (O i Pr) 2 with MeOCH…