Materials Literature
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Abstract Strongly red fluorescent and broadband absorbing benzoterrylenehexacarboxtriimide ( 8 ) and yellow fluorescent dibenzoterryleneoctacarboxtetraimide ( 9 ) were prepared by the Diels–Alder reaction of readily soluble terrylenetetracarboxdiimides and subsequent condensation with primary amines. Applications such…
Abstract The synthesis of face‐to‐face meso ‐substituted bis(corrole) systems was revisited. By using a new synthetic pathway, the reaction was generalized to any type of linker and the yield was considerably increased. The dyads were obtained in yields up to 20 % from a dialdehyde linker and dipyrromethane in a one‐s…
Amorphous poly(DL-lactide-co-RS-beta-malic acid) (PDLLMAc) was synthesized by hydrogenolysis of poly(DL-lactide-co-RS-beta-malolactonate) (PDLLMA), which was obtained from the ring-opening polymerization of DL-lactide (DLLA) and RS-beta-benzyl malolactonate (MA) using stannous octoate as the catalyst. The amount of ma…
We have investigated the change of work function of indium tin oxide (ITO) anodes induced by adsorption of positively charged poly(amidoamine) (PAMAM) dendrimers. Kelvin probe characterization of the functionalized ITO films and electroabsorption measurements on polymer light-emitting diodes incorporating poly(9,9-dio…
The electrostatic properties of individual multiwalled carbon nanotubes (MWCNTs) have been investigated from charge injection and electrostatic force microscopy experiments. The MWCNT linear charge densities analyzed as a function of the nanotube diameters are found to differ from classical capacitive predictions by o…
The magnetoelectric Tb–Fe∕Pb(Zr0.52Ti0.48)O3 thin-film heterostructure was prepared by low energy cluster beam deposition. The microstructures, ferroelectric property, leakage current, and magnetization, as well as magnetoelectric effect were investigated for the heterostructure. It is shown that the thin-film heteros…
(110) ZnO/(001) Nb-1wt%-doped SrTiO3 n-n type heteroepitaxial junctions were fabricated using the pulse laser deposition method. A diodelike current behavior was observed. Different from conventional p-n junctions or Schottky diodes, the diffusion voltage was found to increase with temperature. At all temperatures, th…
Abstract The paper presents a new version of MgAl 2 O 4 solution‐combustion synthesis, based on the individual reactivity of Mg(NO 3 ) 2 and Al(NO 3 ) 3 with respect to various fuels. Beside the traditionally used fuels (urea, glycine, β‐alanine), new organic reducing agents [monoethanolamine, triethanolamine, tris(hy…
A dehydrided Ti powder of very high oxygen content was successfully consolidated using back pressure equal channel angular processing into a fully dense bulk ultrafine-grained Ti showing apparent compressive ductility as well as high true yield and ultimate strengths of 1350 and 1780MPa, respectively. Interstitial sol…
Abstract The rubber antioxidant N ‐(4‐anilinophenyl) methacrylamide (NAPM) was synthesized by a two‐step reaction using thionyl chloride (SOCl 2 ) with methacrylic acid (MAA) and consequently 4‐aminodiphenylamine (ADPA) as precursors. NAPM was characterized by IR, 1 H NMR and elemental analysis. Thermal stability, agi…
Semiconductor quantum dots (Qdots) have emerged as novel ultrasensitive optical probes to target, detect, and image fundamental events occurring within the biological system. In particular, near-infrared (near-IR) Qdots holds great promise as in vivo contrast agents for real-time bioimaging capabilities. In this study…
Nanocrystal-assembled cubic boron nitride (cBN) islands are formed by using low-energy (∼20eV) ion irradiation in an inductively coupled fluorine-containing plasma. The temporal evolution of surface morphology and roughness reveals three-dimensional island growth for initial sp2-bonded BN and subsequent cBN, accompani…
The interplay of surface ordering and elasticity can be studied on the example of a liquid crystal confined to a cavity. We present a computer simulation study of a liquid of hard spherocylinders in a hard spherical cavity. With increasing density, first a uniaxial surface film forms and then a biaxial surface film, w…
Previously, we have reported that nanoporous gold (NPG) films prepared by a chemical dealloying method have distinctive plasmonic properties, i.e., they can simultaneously support localized and propagating surface plasmon resonance modes (l-SPR and p-SPR, respectively). In this study, the plasmonic properties of NPG a…
Fields of thin-film porous anodic alumina (PAA) are fabricated within a SiO2 support and on independently addressable underlying metal pads. The underlying metallization provides a means for unique postprocessing to be performed on the PAA fields. Customized postprocessing is demonstrated with the synthesis of single-…
A mechanical spectroscopy method of quantitatively monitoring the healing of stress-induced microcracks in small glass samples is described. Whereas the cracks are generated catastrophically at some unpredictable interval below the glass temperature Tg the healing process proves to be highly reproducible and a charact…
Abstract The cleaning of protein‐contaminated metallic surfaces is a major challenge for non‐disposable devices used for biomedical applications and in the food industry. The objective of this work is to estimate the cleaning efficiency of sodium dodecyl sulfate (SDS) buffered at pH 7.4, as a function of temperature,…
A novel and simple method to form water-dispersed magnetic nanoparticles was successfully developed through glucosaminic acid-surface modification of iron oxide nanoparticles. The resultant glucosaminic acid-modified magnetic nanoparticles (GA-MNPs) had not only good uniformity in spherical shape with diameter of abou…
Growth and properties of epitaxial BaFeO3 thin films in the metastable cubic perovskite phase are examined. BaFeO3 films were grown on (012) LaAlO3 and (001) SrTiO3 single crystal substrates by pulsed-laser deposition. X-ray diffraction shows that films grown between 650 and 850°C yield an oxygen-deficient BaFeO2.5+x…
This research presents an analytical method to investigate the effect of volume fraction and the number of outer walls of multiwalled carbon nanotube (MWNT) reinforcement on load carrying capability in the aluminum oxide matrix. Interfacial shear stress transfer and energy dissipation have been estimated using the Cox…