Materials Literature
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In a recent paper [J. Chem. Phys. 2007, 127, 154701] a multiscale approach was introduced which allowed calculation of adsorption/desorption hysteresis for fluid confined in a single mesoporous, heterogeneous tubular pore. The main interest in using such an approach is that it allows one to reconcile a molecular simul…
Directional transportation of a ball-like water droplet on a superhydrophobic (SH) surface has been experimentally demonstrated. A SH surface with a water contact angle of as high as 160° and a sliding angle close to 0° is prepared by a sol-gel method based on removable polymeric nanospheres. A designed path line is t…
The effect of anisotropic strains on the phase transitions and domains structures of BaTiO3 thin films was studied using both thermodynamic calculations and phase-field simulations. The misfit strain–misfit strain domain stability diagrams were predicted. The similarity and significant differences between the diagrams…
Using ion-beam (IB) irradiation, liquid crystals (LCs) were vertically aligned (VA) on a γ-Al2O3 alignment film. Atomic-layer deposition was used to orient the LCs on high-quality γ-Al2O3 alignment films. The LC molecule orientation indicates the vertical direction of the atomic-layer-deposited γ-Al2O3 alignment films…
The mechanism of secondary electron emission by impact of 100-eV electrons on an Al(100) surface has been investigated by measuring the secondary electron spectrum in coincidence with loss features in the spectrum of reflected electrons. Distinct peaks are observed at energies corresponding accurately to the surface a…
A highly thermoconductive insulative polymer nanocomposite with a nanoporous alpha-alumina sheet was reported. The thermal conductivity of the nanocomposite along the surface normal was 12 W m(-1) K(-1) (41 vol % alumina), a value as high as that predicted theoretically for a nanocomposite with thermoconductive filler…
Vertically well-aligned Ga-doped ZnO nanorods with different Ga content were grown by thermal evaporation on a ZnO template. The Ga-doped ZnO nanorods synthesized with 50 wt% Ga with respect to the Zn content showed minimum compressive stress relative to the ZnO template, which led to a rapid growth rate along the c-a…
Calcium phosphate nanoparticles were prepared by matrix-mediated synthesis and were characterized using X-ray diffraction and transmission electron microscopy techniques. The particle size was found to be around 10 nm. Nanocomposites of polystyrene with calcium phosphate were prepared by a melt mixing technique. Mecha…
Monodisperse magnetic nanoparticles (MNPs) were synthesized by thermal decomposition of iron-oleate and functionalized with silanes bearing various functional groups such as amino group (NH2), short-chain poly(ethylene glycol) (PEG), and carboxylic group (COOH). Then, silanes-functionalized magnetic nanoparticles (sil…
A simple and effective method of fabricating scaffolds with open pore structures was successfully used on several copolymers. The method, which is straightforward and fast, was developed to overcome problems such as low pore interconnectivity and to achieve thick three-dimensional scaffolds. Copolymers are of particul…
Polyaniline(PANI)/Ag composite nanotubes have been successfully prepared using a suitable fiber as template in the presence of H 4 SiW 12 O 40 (SiW 12 ) and silver nitrate (AgNO 3 ) as a dopant and an oxidant, respectively. The Ag nanoparticles dispersed in the PANI nanotubes are very uniform. The structure and morpho…
We report the structural and optical properties of xSnO2–yFe2O3 nanocrystalline composite thin films. SnO2 and Fe2O3 exhibit strong phase separation instability and their particle size and crystallinity are tunable by changing their composition and annealing temperature. The bandgap for these composites continuously i…
A new triphenylamine-containing aromatic diamine, 4,4′-bis[4-aminophenyl(4-methoxyphenyl)amino)]-4′′-methoxytriphenylamine ( 5 ), was successfully synthesized by the Ullmann reaction of 4,4′-dibromo-4′′-methoxytriphenylamine ( 2 ) with 4-methoxy-4′-nitrodiphenylamine ( 3 ), followed by palladium-catalyzed hydrazine re…
The main objective of this study was to assess the performance of electrochemical regeneration of granular activated carbon via a set of bench-scale experiments using different operating conditions in the regeneration of several different activated carbons loaded with phenol or natural organic matter. The regeneration…
It is shown that the phase behavior of an athermal thin film nanoparticle/polymer hybrid material of polystyrene (PS) with PS-grafted gold nanoparticles is readily tailored through control of the degrees of polymerization, N and P, of the grafted and the free chains, respectively, and the relative size of the nanopart…
Ultrathin Pt films from one to several atomic layers are successfully decorated onto nanoporous gold (NPG) membranes by utilizing under potential deposition (UPD) of Cu onto Au or Pt surfaces, followed by in situ redox replacement reaction (RRR) of UPD Cu by Pt. The thickness of Pt layers can be controlled precisely b…
The layer-by-layer assembly of polyelectrolyte multilayers of poly(diallyldimethylammonium chloride) (PDADMAC) and poly(sodium styrenesulfonate) (PSS) on soft and porous thermoresponsive poly( N -isopropylacrylamide- co -methacrylic acid) (P(NiPAM- co -MAA)) microgel was studied by dynamic light scattering and electro…
The optical coupling of guided modes in a GaP waveguide to nitrogen-vacancy (NV) centers in diamond is demonstrated. The electric field penetration into diamond and the loss of the guided mode are measured. The results indicate that the GaP-diamond system could be useful in realizing coupled microcavity-NV devices for…
Detailed kinetic investigations of the most common photoswitchable spiropyran, 6-nitro-BIPS, reveal that hydrolytic decomposition of its merocyanine isomer limits its utility in aqueous buffer; however, simple replacement of the 6-nitro substituent with an 8-carboxylate yields a BIPS photoswitch that is potentially be…
The primary focus of this research is to investigate the potential correlations between the absorption band and surface-enhanced Raman scattering (SERS) activity of solution-based silver nanoparticles and the morphology and size of the silver nanoparticles. Silver nanoparticles were synthesized using sodium borohydrid…