Materials Literature
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Infrared attenuated total reflection spectroscopy has been used to study the interaction of DMMP vapor with SiO(2), Al(2)O(3), and AlO(OH) vs relative humidity (RH) and DMMP partial pressure (P/P(0)). For SiO(2) the growth with increasing RH of ice-like and liquid-like layers is seen in agreement with previous work. H…
We report the structural, electrical, and magnetoelectric (ME) properties of cofired ME laminate composites synthesized using tape‐casting approach. Compositions corresponding to 0.2Pb(Zn 1/3 Nb 2/3 )–0.8Pb(Zr 0.5 Ti 0.5 )O 3 [PZNT] and (Ni 0.6 Cu 0.2 Zn 0.2 ) Fe 2 O 3 [NCZF] were used as piezoelectric and magnetostri…
The high carrier mobility of graphene makes it an attractive candidate for future electronic device applications.(1) In SiO2/Si-supported graphene devices, the mobility typically varies from 2000 to ∼2,0000 cm(2) V(-1) s(-1).(2) By removing SiO2,(3,4) much higher mobility (2 × 10(5) cm(2) V(-1) s(-1) in the latter) ha…
A biodegradable substrate with a regular array of nanopillars fabricated by electron-beam lithography and hot embossing is used to address the mechanisms of nanotopographical control of cell behavior. Two different cell lines cultured on the nanopillars show striking differences in cell coverage. These changes are top…
The aim of this work is to design highly sensitive guided mode resonance (GMR) sensors for the visible spectral range providing maximum spectral shift of the resonance leaky mode with a change of the refractive index. The GMR sensor consists of a fused silica linear grating coated with dielectric materials by atomic l…
We were able to attach CdSe quantum dots (QDs) having a ZnS inorganic glue layer directly to a mesoporous TiO(2) (mp-TiO(2)) surface by spray coating and thermal annealing. Quantum-dot-sensitized solar cells based on CdSe QDs having ZnS as the inorganic glue layer could easily transport generated charge carriers becau…
The reaction of an α-free, β,β'-linked bis(dipyrromethene) ligand with Fe(3+) or Co(3+) led to noninterconvertible triple-stranded helicates and mesocates. In the present context, a stable α-free ligand 2 has been developed and complexation of ligands 1 and 2 with diamagnetic Co(3+), Ga(3+), and In(3+) has been studie…
Using a model for the Ni/ceria anode of a solid oxide fuel cell (SOFC), we have performed a DFT + U study of H 2 and CH 4 activation on the ceria surface and elucidated the mechanisms of charge transfer as a result of ceria reduction. Bader’s Atoms in Molecules (AIM) analysis scheme establishes that deposition of nick…
A pentacobalt(II) cluster based 3D pcu network, [Co(5)(μ(3)-OH)(2)(bpdc)(4)(dabco)(H(2)O)(2)] (bpdc = benzophenone-2,4'-dicarboxylate and dabco = 1,4-diazabicyclo[2,2,2] octane), exhibiting both slow magnetic relaxation and hysteresis behavior, has been hydrothermally synthesized.
This paper describes a new strategy for synthesizing free-standing bimetallic nanorings and nanoring arrays based upon on-wire lithography and a galvanic replacement reaction. The strategy allows one to tune the diameter, length, and therefore aspect ratio of the nanorings. In addition, it can be used to produce array…
AlFeO3, GaFeO3 and Al0.5Ga0.5FeO3, all crystallizing in a non-centrosymmetric space group, are multiferroic and also exhibit magnetodielectric properties, with Al0.5Ga0.5FeO3 showing an unusually large magnetocapacitance at 300 K.
The prediction of drug solubility in various pure and mixed solvents and the octanol−water partition coefficient ( K OW ) are evaluated using the recently revised conductor-like screening segment activity coefficient (COSMO-SAC) model. The solubility data of 51 drug compounds in 37 different solvents and their combina…
We investigate the local density of states and Friedel oscillation in graphene around a well-localized impurity in Born approximation. In our analytical calculations Green's function technique has been used taking into account both the localized atomic wave functions in a tight-binding scheme and the corresponding sym…
Abstract The selective delivery of the steroid anti‐estrogen RU 58668 (RU) to human breast cancer MCF‐7 cells by using nanoscaled hybrid liposomes, labelled with rhodamine, coated by poly(ethylene glycol) and entrapping superparamagnetic nanocrystals of maghemite (γ‐Fe2O3) was investigated. Stable drug incorporation w…
4,4'-Dibromo-9,9'-spirobifluorene was first synthesized, and from this intermediate, three fully ortho-linked tri-, tetra-, and pentamers of 9,9'-spirobifluorenes were constructed. The full ortho-linkage impedes the π conjugation of fluorene units, and guarantees their high triplet energies (E(T) = 2.80 eV). A device…
A series of Mo x W 1− x O 3 ·0.33H 2 O ( x = 0, 0.25, 0.50, 0.75) micro/nanostructures and α-MoO 3 nanobelts have been prepared by a facile hydrothermal treatment method starting from aqueous peroxo-polytungstic acid and peroxo-molybdic acid solutions. The WO 3 ·0.33H 2 O lattice can be substituted with up to 75% Mo w…
We report on the usage of a simple microfabricated device that works in conjunction with a quantitative Nanoindenter within a scanning electron microscope (SEM) chamber, for the in situ quantitative tensile testing of individual catalytically grown pristine and nitrogen-doped multiwall carbon nanotubes (MWNTs). The tw…
Abstract Electro‐optic side‐chain polymers have been synthesized by the post‐functionalization of methacrylate isocyanate polymers with novel phenyl vinylene thiophene vinylene bridge (FTC) nonlinear optical chromophores. For this application, FTC‐based chromophores were modified in their electronic donor structure, e…
We present strong evidence for the oxidation of conjugated polymers in the formation of conjugated polymer dots (CPdots) using Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. Although recent studies show that folding of the polymer chain into a compact 3D structure is involved in the form…
Biocompatible gold nanoparticles were synthesized by using a naturally occurring gum--Gellan Gum--as a capping and reducing agent. These were further conjugated with sophorolipids which again were accessed through a biochemical transformation of a fatty acid. The cellular uptake of sophorolipid-conjugated gellan gum r…