Materials Literature
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A self-assembled Fmoc-peptide hydrogel has been interfaced with a liquid crystal (LC) display to give an optical sensor for enzyme activity. An Fmoc-TL-OMe hydrogel was selected as it can be formed in situ by enzyme-mediated assembly with thermolysin, and undergoes enzyme-mediated diassembly upon subtilisin addition.…
A template-free method is presented to synthesize polyaniline nanowire-pillared graphene by melamine initiated nucleation. Polyaniline nanowire morphology was readily controlled by tailoring the amount of melamine. Polyaniline nanowires produced at optimized condition were vertically aligned on graphene sheets, and sh…
Fungal infections can attack epithelial tissues and, according to the immunological state of the patient, some of them invade deeper organs, becoming seriously life compromising. Besides, bloodstream and local infections associated with intravascular devices constitute a significant problem associated with increased m…
High-quality single crystalline twin phase NiO grown on sapphire substrates by metalorganic vapor phase epitaxy is reported. X-ray rocking curve analysis of NiO films grown at different temperatures indicates a minimum full width at half maximum of the cubic (111) diffraction peak of 0.107° for NiO film grown at as lo…
A metal is a lot more than a lattice of atoms in their electronic ground states. In the atomic lattice state, for many metals the only bond formation would be due to van der Waals-induced dipole interactions. Those interactions are hardly up to the task of stabilizing a solid. Bonding is a matter of electronic overlap…
Glycol chitosan (GC) and fructose chitosan (FC) were linked to testosterone hemisuccinate through water-soluble carbodiimide activation. The resulting conjugates formed self-assembled nanoparticles in aqueous solution with particle sizes of 245-332 nm as measured by dynamic light scattering and testosterone content of…
Die Zellteilung in Bakterien ist zeitlich und räumlich hoch reguliert. Durch Verwendung von mikrometergroßen Probenvolumina und von Modellmembranen lassen sich die Pol-zu-Pol-Oszillationen räumlicher Regulatoren für die bakterielle Zellteilung in einem synthetischen Minimalsystem rekonstituieren (siehe schematischen A…
We investigate the stability of carbon bamboo-like nanotubes (BCNTs) with different diameters. It is shown that BCNTs with a diameter of 2.024 nm are the most stable bamboo-like nanotubes with the smallest diameter. It is shown that bamboo-like nanotubes with a certain distance between the bridges have superior emissi…
Highly ordered BaTiO3/CoFe2O4 (BTO/CFO) epitaxial heterostructures were grown via modified stencil-assisted pulsed laser deposition. With proper particle size and good crystal quality, the magnetoelectric (ME) coupling effect of the as-prepared nanodots can be probed in a low field. Unexpected coupling relaxation was…
Ein flüssigkristallines Dibenzophenazin, das zur Erzeugung eines großen Dipolmoments in eine gestapelte Kopf-Kopf-Anordnung gezwungen wurde, behielt diese Anordnung auch bei der Selbstorganisation in ein hexagonales 2D-Übergitter bei (siehe Bild). Auf diese Weise waren der Nettodipol und die Kontaktfläche zwischen unv…
The experimental investigation of TiFe-hydride has been performed for rapid and high-rate storage of hydrogen under low operating pressure. Three different reactors are designed, manufactured and tested to investigate the effect of reactor design. The reactors are a tubular-shaped simple one, a tubular-shaped reactor…
Surface-relief resonance-domain diffraction gratings with deep and dense grooves provide considerable changes in light propagation direction, wavefront curvature, and nearly 100% Bragg diffraction efficiency usually attributed only to volume optical holograms. In this paper, we present design, computer simulation, fab…
Cadmium-based quantum dots (QDs) have been extensively used for biomedical applications for the last decade. They have also been researched for drug and gene delivery. For this reason, efforts have been placed on evaluating their toxicity at in vivo level. The most widely used quantum dots are CdSe QDs and thus it is…
We fabricated a high density array of concentric silver nanorings in a large area (over in. 2 ) with uniform gap distance by utilizing half onion-shaped microdomains prepared by symmetric polystyrene- block -poly(methyl methacrylate) copolymers (PS- b -PMMA) confined within hemispherical cavities in anodized aluminum…
Abstract Composites of poly(lactic acid) (PLA) and organoclays with clay loadings of up to 80% were prepared as self‐supporting films using a doctor‐blading approach. Depending on the properties of the used organoclay, either intercalated nanocomposites or conventional composites were obtained. The incorporation of su…
We propose a facile approach toward enhancing the efficiency of fluoride-responsive gels through the positioning of functionalized receptor units, allowing tunable intra- and intermolecular hydrogen bonding, in the gelator molecules. We prepared the new glycolipid-based gelator 2 and its hydroxy and methoxy derivative…
Abstract The photoluminescence of Si nanocrystals is often assigned to exciton recombination confined within the nanocrystals. However, localized radiative or non‐radiative defects at the nanocrystal (NC) interface can drastically influence the NCs ensemble and reduce the luminescence output. In addition, size of the…
MnO x –CeO 2 –Al 2 O 3 mixed oxide catalyst, which is efficient for soot oxidation in NO + O 2 with T 50 = 437 °C, shows a poor resistance to sulfur dioxide with T 50 raised to 534 °C. The sulfated catalyst was treated in a reducing atmosphere (5% H 2 /He) at different temperatures (500, 600, and 700 °C). The catalyst…
Using empirical data, a map of composition versus magnetic properties was developed to design Ni-Mn-In magnetic shape-memory alloys. By the aid of this composition map, five alloys with desired properties were designed. A linear composition dependence of martensitic transformation temperature (Tm) and alloy was reveal…
Oberflächenanalyse: Zweidimensionale Infrarotspektroskopie (2D-IR) wurde verwendet, um funktionelle Amid- und Carboxylat-Gruppen in der Nähe von Goldnanopartikeln und ihren Aggregaten zu untersuchen. Die Daten zeigen, wie 2D-IR-Spektroskopie, durch Charakterisierung von Verbreiterungsmechanismen und Kreuzsignalen, Ein…