Materials Literature
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An environmentally friendly approach in inhibiting corrosion of mild steel (MS) and in rendering its surface biocidal for reducing bacterial adhesion, biofilm formation, and biocorrosion in seawater is described. Surface-initiated atom transfer radical polymerization (ATRP) of glycidyl methacrylate from the MS surface…
A general approach involving a solvothermal method was developed to synthesize a series of silicate nanoshells (<100 nm) where both Gd silicate and Gd silicate:Eu nanoshells were further demonstrated to exhibit dual-modality MRI and optical imaging functions.
Novel banana-shaped liquid crystals with stilbene bridges were synthesized. All presented materials exhibit the polarization-randomized non-tilted smectic phase (SmAP(R)) in a broad temperature range and the antiferroelectric non-tilted smectic phase (SmAP(A)) at room temperature.
This paper deals with a three-dimensional model for thermal stress-induced transformations in shape-memory materials. Microstructure, like twined martensites, is described mesoscopically by a vector of internal variables containing the volume fractions of each phase. We assume that the temperature variations are presc…
Copper aluminate-copper hybrid nanorod arrays possessing superior visible-light driven photocatalytic properties were synthesized inside porous anodic aluminum oxide (AAO) under mild electrochemical conditions.
The new double perovskite Pb2ScSbO6 was synthesized by standard ceramic procedures; the Rietveld refinement of room temperature neutron powder diffraction data shows that the crystal structure is well defined in the space group Fm3[combining macron]m. It contains a completely ordered array of alternating ScO6 and SbO6…
The reaction between [XW(9)O(34)](9-) (X = As, P) and [RuC(6)H(6)Cl(2)](2) in aqueous buffer solution (pH 6.0) leads to the isolation of two pseudo-sandwich-type heteropolytungstates KNa(6)[(RuC(6)H(6))AsW(9)O(34)] x 17 H(2)O (As-1) and Na(7)[(RuC(6)H(6))PW(9)O(34)] x 14 H(2)O (P-2). Single-crystal X-ray diffraction a…
Electronic and magnetic properties of V-doped ZnO nanotubes in which one of Zn 2+ ions is substituted by V 2+ ions are studied by the first-principles calculations of plane wave ultra-soft pseudo-potential technology based on the spin-density function theory. The computational results reveal that spontaneous magnetiza…
Langmuir monolayers of octadecylamine (ODA) and octadecylthiol (ODT) at the air/liquid interface were used as template layers to adsorb gold nanoparticles (AuNPs) dispersed in the subphase. A small quantity of ethanol was introduced into the aqueous subphase to regulate the stability of dispersed AuNPs and, thereby, e…
The engineering of cavity void metallic arrays allows to vary the plasmon-polariton mode energies from the near infrared to the ultraviolet through the tuning of the void height and diameter, and the selection of the appropriate material. Typically Au nanocavity substrates can be grown with better reproducibility, hom…
Ligand-functionalized CdSe quantum dots and nanorods, and horse spleen ferritin bionanoparticles, were co-assembled at an oil-water interface, then used in polymerization at the interface, effectively cross-linking the assembled mixtures of nanoparticles into robust structures. Both ring-opening metathesis polymerizat…
Uranium-gadolinium mixed oxides of four different compositions, (U1-y Gdy) O2±x (y = 0.1, 0.2, 0.5, and 0.8), were synthesized. Single-phase fluorite structure was observed for the compositions (U1-y Gdy) O2±x (y = 0.1, 0.2, and 0.5). The room temperature lattice constants measured for (U0.9 Gd0.1) O2.02, (U0.8 Gd0.2)…
Conventional and anisotropic magnetocaloric effects were studied in cubic rare earth RNi2 (R=Nd,Gd,Tb) ferromagnetic intermetallic compounds. These three compounds are representative of small, null, and large magnetocrystalline anisotropy in the series, respectively. Magnetic measurements were performed in polycrystal…
The synthesis and subsequent photophysical investigation of [Pt(mesBIAN)(tda)], where mesBIAN is bis(mesitylimino)acenaphthene and tda is tolan-2,2'-diacetylide, reveal excited-state characteristics best described as triplet charge transfer ((3)CT) in nature upon visible light excitation. Large ground-state dipole mom…
Here we present the synthesis of layered, ferrimagnetic, Co-based organic-inorganic hybrid nanobelts formed through self-organization in a non-aqueous process. The belts are formed solvothermally by reacting cobalt(iii) acetylacetonate with benzoic acid in benzyl alcohol at 150 degrees C. Benzoic acid not only acts as…
It was found that the effect of the ionic modification of anchoring in liquid-crystal droplets can be implemented in the inverse regime. Droplets of 4- n -pentyl-4′-cyanobiphenyl nematic doped with ionic cetyltrimethylammonium bromide surfactant were dispersed in polyvinyl alcohol and investigated. In the initial stat…
The layer-by-layer polyelectrolyte adsorption technique has been combined with the particle lithography technique to produce anisotropic polymer microcapsules each with a single nanoscale patch. The patch region covers roughly 5% of the capsule surface area, while the remaining 95% of the capsule surface is reinforced…
The tetrathiafulvalene based 2-immino-pyrazine derivative (TTF-CHN-2-pyz) () was synthesized and characterized. Its radical cation salt ( (+)PF(6)(-)) was prepared as single crystals by electrocrystallisation. (+)PF(6)(-) crystallizes in the triclinic P1 space group. Four 1 : 2 bis(hexafluoroacetylacetonate)M(ii) comp…
The phosphorylation-dependent activation of bacterial UDP-glucose dehydrogenases by BY-kinases has been previously described in several bacterial model organisms, but the identity of phosphorylated tyrosine(s) and the exact activation mechanism remained unknown. A recent site-specific phosphoproteomic study indicated…
To increase the film quality of the nickel electrode in a multi-layer ceramic capacitor (MLCC), the BaTiO3 particles are usually used as an additive material in the electrode paste. In this report, we investigated the effects of particle size (30-100 nm) and the amount (10-20% mass ratio to Ni) of BaTiO3 nanoparticle…