Materials Literature
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Triphosphine and diphosphine ligands with backbones designed to facilitate metal–arene interactions were employed to support multinuclear Ni complexes. Di- and trinuclear metal complexes supported by a triphosphine containing a triarylbenzene linker display diverse metal–arene binding modes. Multinuclear Ni halide com…
We present a method which allows quasi-elastic neutron scattering (QENS) at multi-GPa pressures, i.e., pressure conditions which are an order of magnitude higher than possible with QENS till now. The technique uses an opposed-anvil geometry with a sample chamber in the form of a toroid which minimizes multiple scatter…
The heme in cytochromes c undergoes a conserved out-of-plane distortion known as ruffling. For cytochromes c from the bacteria Hydrogenobacter thermophilus and Pseudomonas aeruginosa , NMR and EPR spectra have been shown to be sensitive to the extent of heme ruffling and to provide insights into the effect of ruffling…
The nucleation of Sn from the melt in commercial SnAgCu flip chip solder joints was monitored at a number of different temperatures. Nucleation rates were estimated from measurements of nucleation times for 440 solder balls after one reflow and were found to be well epitomized by the expression I = 2 × 109 exp[(−1.6 ×…
Novel optically active poly(phenyleneethynylene-aryleneethynylene)s bearing hydroxy groups with various arylene units [poly( 1 – 2 ), poly( 1 – 3a), poly( 1 – 3b ), poly( 1 – 4 )] were synthesized by the Sonogashira–Hagihara coupling polymerization of ( S )-3,5-diiodo-4-hydroxy-C 6 H 4 CONHCH(CH 3 )COOC 12 H 25 ( 1 )…
N-(Rhodamine B)-benzimidazole (RB-IM), featuring an intramolecular spiro-benzimidazole, was developed for selective sensing of protons via opening of the spiro-ring to give fluorescent and colored species. The utility of RB-IM was demonstrated by imaging of lysosomes in live cells and staining of the intestine of zebr…
TiNBr with α-type nitride layers (isostructural with FeOCl) was electron-doped by the intercalation of alkali metal (Li, Na, K, and Rb), which can be cointercalated with organic solvent molecules such as tetrahydrofuran (THF) and propylene carbonate (PC), expanding the basal spacing (d) up to 16 A. All of the alkali m…
Gegen jeden Widerstand: Wärmebehandelte Krebszellen haben einen schützenden Resistenz- und Überlebensmechanismus. Resistenzfreie Zelltod-induzierende magnetische Nanopartikel (RAINs) fördern den hyperthermalen Zelltod, indem sie die Wärmeerzeugung und das Freisetzen von Geldanamycin (GM) zur Hemmung des Hitzschockprot…
Polarization fields within InAs nanopillars with zincblende(ZB)/wurtzite(WZ) polytype stacking are quantified. The displacement of charged ions inside individual tetrahedra of WZ regions is measured at the atomic scale. The variations of spontaneous polarization along the interface normal are related to strain at inte…
We propose a scheme for realizing plasmonic electromagnetically induced transparency (EIT)-like effects at optical frequencies in a stacked metamaterial that consists of two silver rings. The two silver rings are excited strongly by an incident wave. Based on Fabry–Pérot (FP) resonance coupling between the two resonat…
31P magnetic resonance spectroscopy (31P MRS) can measure intracellular pH (pHi) using the chemical shift difference between pH-dependent inorganic phosphate (Pi) and a pH-independent reference peak. This study compared three different frequency reference peaks [phosphocreatine (PCr), α resonance of adenosine triphosp…
The size, shape and composition of nanoparticles in a composite become design parameters that can be manipulated to enhance the third-order nonlinear response of the composite. In this work we report the study of the nonlinear response of a composite material consisting of elongated silver nanoparticles that are align…
We demonstrate that the polarity of polar (0001), (0001¯) and semipolar (112¯2) InN and GaN thin layers can be determined by valence band X-ray photoemission spectroscopy (XPS). The polarity of the layers has been confirmed by wet etching and convergent beam electron diffraction. Unlike these two techniques, XPS is a…
The feasibility of steel slag powder as a combined admixture with ground granulated blast furnace slag (GGBFS) in cement-based materials was explored. The effects of steel slag powder on normal consistency water requirement, setting times, fluidity, mechanical strength and hydration products of cement paste/mortar wer…
In many discharges at A SDEX Upgrade (A UG ) fast particle losses can be observed due to Alfvénic gap modes, reversed shear Alfvén eigenmodes or core-localized beta Alfvén eigenmodes. For the first time, simulations of experimental conditions in the A UG fusion device are performed for different plasma equilibria (par…
In this study, the performance enhancement in silicon solar cell by inverted nanopyramid texturing and silicon quantum dot coating has been investigated. The inverted nanopyramid was fabricated by laser interference lithography and subsequent pattern transfer dry etching and KOH wet etching. The silicon quantum dots w…
A simple and practicable hydrothermal process was engaged for the synthesis of three-dimensional (3D) flowerlike cerium-based coordination polymer (CP) microstructures employing 1,2,4,5-benzenetetracarboxylic acid (BTTA) as the organic linker. Ceria with similar flowerlike microstructures was obtained after thermolysi…
We have designed and synthesized a new thiocyante-free ruthenium complex containing 2,6-bis(1-methylbenzimidazol-2-yl)pyridine, coded as SPS-G3, and it has been used as an efficient photosensitizer for dye-sensitized solar cells (DSSCs). Upon sensitization of SPS-G3 on nanocrystalline TiO2 film, the DSSC test cell yie…
Nanoinstability and nanoprocessing of a SiOx amorphous nanowire at room temperature as induced by in situ electron beam irradiation in transmission electron microscopy are systematically investigated. It is demonstrated that in contrast to the crystalline nanowires where only the beam-induced ablation of atoms was obs…
We introduce a novel optical biosensing platform that exploits the asymmetry of nanostructures embedded in nanocavities, termed nanomenhirs. Upon oblique illumination using plane polarized white light, two plasmonic resonances attributable to the bases and the axes of the nanomenhirs emerge; these are used for locatio…