Materials Literature
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The electronic structure of TiO2 rutile with oxygen vacancies, which is a promising insulator, has been analyzed. The ab initio density functional calculations, as well as the comparative analysis of the results obtained in the σ-GGA spin-polarized generalized approximation and those obtained by the σ-GGA + U method w…
We demonstrate a noncontact thermal microprobe technique for measuring the thermal conductivity κ with ∼3 μm lateral spatial resolution by exploiting quasiballistic air conduction across a 10-100 nm air gap between a joule-heated microprobe and the sample. The thermal conductivity is extracted from the measured effect…
Abstract The interaction between large metal‐oxide polyanions and their counterions is unique. Owing to their size disparity, there is a moderate ion‐pairing effect and loose distribution of counterions around macroions, which leads to the unique solution behavior and the self‐assembly of the macroions in polar solven…
Abstract Poly(lactic acid) (PLA)/organomontmorillonite (OMMT) nanocomposites were prepared by a melt intercalation technique. The effects of OMMT and poly(ethylene glycol) (PEG) on the thermal properties and water absorption behavior of PLA were investigated. The melting temperature and degree of crystallinity were co…
The crystal structures of 23 samples extracted from a large slice oriented along (001) of a single crystal of liddicoatite from the Anjanabonoina granitic pegmatite in Madagascar (showing pronounced, visually discontinuous oscillatory zones and anomalous biaxiality) were refined to R 1 indices of 1.5–2.9% ( R 1 > = 1.…
Plasma-induced damage to porous SiOCH (p-SiOCH) films during organic resist film ashing using dual-frequency capacitively coupled O2 plasmas was investigated using the pallet for plasma evaluation method developed by our group. The damage was characterized by ellipsometry and Fourier-transform infrared spectroscopy. I…
Abstract The effect of various stabilizer additives on Low‐Density Polyethylene films with a thickness of ca. 40 μm and containing metal stearates was studied. The films were subjected to accelerated aging in a QUV Weatherometer. The apparatus was fitted with A320 lamps and operated on a dry cycle at 63°C and an irrad…
Abstract W‐type barium ferrites doped with Gd 3+ , Ba 1− x Gd x (Zn 0.3 Co 0.7 ) 2 Fe 16 O 27 ( x = 0, 0.05, 0.10, 0.15, 0.20), were prepared by a sol‐gel method. The effects of Gd 3+ substitution on their microstructure, electromagnetic properties and microwave absorptive behavior were analyzed. The XRD patterns show…
The present study investigates the prospective of surface engineered solid lipid nanoparticles as vectors to bypass BBB and provide improved therapeutic efficacy of encapsulated anti-cancer drug Methotrexate (MTX). MTX loaded SLNs were prepared and conjugated with cationic bovine serum albumin (CBSA). Ligand conjugate…
High quality compact Ni nanowire (NW) arrays with aspect ratios (wire length/diameter) varying between 70–171 for a wire length of ∼6 μm, and between 3–400 for a constant wire diameter of 60 nm were successfully grown by direct current electrodeposition into free standing porous alumina templates having a lattice cons…
A dramatic enhancement in the electromechanical response of barium titanate thin films is demonstrated by understanding and optimizing the relationship between organic removal, crystallization, and microstructure, which therefore results in pore elimination, larger grain sizes, and superior densification. The combinat…
OBJECTIVE: To investigate the in vitro and in vivo radiosensitization effect of an institutionally designed nanoliposome encapsulated cisplatin (NLE-CDDP). MATERIALS AND METHODS: NLE-CDDP was developed by our institute. In vitro radiosensitization of NLE-CDDP was evaluated by colony forming assay in A549 cells. In viv…
Improved cationic stoichiometry and insulating behavior at the interface of LaAlO3/SrTiO3 formed at high oxygen pressure during pulsed-laser deposition, Kalabukhov, A., Boikov, Yu. A., Serenkov, I. T., Sakharov, V. I., Börjesson, J., Ljustina, N., Olsson, E., Winkler, D., Claeson, T.
Photoluminescence properties of carbon nanoparticles from different treatments in various suspensions were evaluated, and the results were in general agreement with those available in the literature. An interesting observation was that the quenching of luminescence emissions in the aqueous suspended carbon nanoparticl…
Microencapsulated healing agents that possess adequate strength, long shelf-life, and excellent bonding to the host material are required for self-healing materials. The in situ encapsulation method is demonstrated over an order of magnitude size reduction for the preparation of urea-formaldehyde (UF) capsules filled…
This overview features the chemical background on condensation phenomena of the aluminum cation in aqueous solution. The formation of polycationic molecular clusters and nanosized solid phases of aluminum oxy(hydroxi)des is interpreted with illustrative mechanisms, building a bridge between solution chemistry and soli…
Safe storage of radioactive waste is a major challenge for the nuclear industry. Mineralogy is a good basis for designing ceramics, which could eventually replace nuclear glasses. This requires a new storage concept: separation-conditioning. Basic rules of crystal chemistry allow one to select the most suitable struct…
Localized surface plasmon resonance (LSPR) of Ag nanoparticles (NPs) with different shapes and disk-shaped Ag NP pairs with varying interparticle distance is studied using dark-field optical microscopy and spectroscopy (DFOMS). Disk-, square-, and triangular-shaped Ag NPs were fabricated on indium tin oxide-coated gla…
The structural and electronic effects of isoelectronic substitution by Ag and Cu atoms on gold cluster anions in the size range between 13 and 15 atoms are studied using a combination of photoelectron spectroscopy and first-principles density functional calculations. The most stable structures of the doped clusters ar…
The addition of ZnO nanowhiskers (ZnO w ) in lead zirconate titanate (PZT) matrices results in reinforced composite materials but deteriorates their electrical properties. In this study, novel piezoelectric PZT/ZnO w composites modified with Nb 2 O 5 were successfully fabricated using solid‐state sintering method. The…