Materials Literature
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The formation process of perovskite-type hydride LiNiH3 was investigated using in situ synchrotron X-ray diffraction measurements. A mixture of LiH and Ni was hydrogenated at 873 K and 3 GPa, and the structural changes associated with hydrogenation were observed. Time-resolved diffraction profiles showed a three-step…
Nanocomposites have significant potential in the development of advanced materials for numerous applications. Tin dioxide (SnO2) is a functional material with wide-ranging prospects because of its high electronic mobility and wide band gap. Graphene as the basic plane of graphite is a single atomic layer two-dimension…
Two-dimensional (2D) layered nanostructures are emerging fast due to their exceptional materials properties. While the importance of physical approaches (e.g., guest intercalation and exfoliation) of 2D layered nanomaterials has been recognized, an understanding of basic chemical reactions of these materials, especial…
Dispersions of poly(N-isopropylacrylamide-co-butyl methacrylate) (PNB) nanogels are known to exhibit reversible thermosensitive sol-gel phase behavior and can consequently be used in a wide range of biomedical applications. However, some dissatisfactory mechanical properties of PNB nanogels can limit their application…
We compute the thermal conductivity of superlattice (SL) thin films and nanowires for various SL periods and total specimen lengths using nonequilibrium molecular dynamics. Both types of materials exhibit similar behaviors with respect to SL period but the thermal conductivity of the thin films exhibits a significantl…
We report a morphotropic phase transformation in vanadium dioxide (VO2) nanobeams annealed in a high-pressure hydrogen gas, which leads to the stabilization of metallic phases. Structural analyses show that the annealed VO2 nanobeams are hexagonal-close-packed structures with roughened surfaces at room temperature, un…
Deposition of block copolymer thin films is most often accomplished in a serial process where material is spin coated onto a substrate and subsequently annealed, either thermally or by solvent vapor, to produce a well-ordered morphology. Here we show that under appropriate conditions, well-ordered block copolymer film…
Abstract The purpose of this research was to develop blends of poly(vinyl alcohol) (PVA)‐poly(ethylene oxide) (PEO) and carboxymethyl cellulose (CMC) by two approaches: solvent casting and freeze‐drying to develop membranes for various biomedical applications. The PVA/PEO/CMC blends in different compositions of 90/10/…
Nanotechnology has vast potential for expanded development and novel application in numerous sectors of society. With growing use and applications, substantial production volumes and associated environmental release can be anticipated. Exposure effect of nanoparticles (NP) on biological systems may be intrinsic to the…
In this study, in vitro cytotoxic evaluation was carried out for a hierarchical web of carbon micronanofibers applied as an adsorbent and a support for metal catalysts for several environmental and biological applications. The web was prepared by growing carbon nanofibers (CNFs) on substrate-activated carbon microfibe…
Zipper examined: High-quality boron nitride nanoribbons (BNNRs) can be produced directly during nanotube synthesis without post-treatment. These BNNRs are typically several micrometers long and tens of nanometers wide. Near-edge X-ray absorption fine structure investigations indicated that the BNNRs are of high chemic…
We report a two-step approach for the fabrication of quasi-hexagonal ordered arrays of star-shaped gold nanoparticles (gold nanostars) as reliable, large-scale homogeneous substrates for surface-enhanced Raman scattering (SERS) spectroscopy by a combination of block-copolymer micelle nanolithography and electroless de…
A large number of antitumor drug delivery carriers based on passive targeting and/or active targeting have been developed. However, encapsulation of antitumor drugs into these drug carriers is often complicated, and antitumor activities of these targeting systems are not satisfactory. In the present study, we first pr…
Very little is known about the size and shape effects on the properties of actinide compounds. As a consequence, the controlled synthesis of well-defined actinide-based nanocrystals constitutes a fundamental step before studying their corresponding properties. In this paper, we report on the non-aqueous surfactant-ass…
All bent out of shape: The solvent of crystallization effectively enhances the emission of flexible, bent, π-conjugated molecules in the crystalline state owing to control of the packing of the molecules in the structure. Multichromism such as thermochromism and vapochromism also arises from the solvent-controlled pac…
Abstract WB 2 nanocomposite coatings were synthesized by dc magnetron sputtering. The morphology, chemical composition, chemical bonding state, microstructure, hardness, and tribological properties were investigated. The columnar‐structured coatings are dense and uniform. The as‐deposited coatings were found to have a…
Adhesive silks spun by aquatic caddisfly (order Trichoptera) larvae are used to build both intricate protective shelters and food harvesting nets underwater. In this study, we use (13)C and (31)P solid-state NMR and wide angle X-ray diffraction (WAXD) as tools to elucidate molecular protein structure of caddisfly larv…
Ultrahigh specific capacitance and excellent cyclic retention of MnO2 can be achieved in a novel sandwich electrode loaded with a large amount of MnO2 by utilizing the open porosity of dealloyed nanoporous metals. The highly conductive nanoporous metals, as both support of active materials and current collector of sup…
OBJECTIVES: In this study, the authors developed D-α-tocopheryl polyethylene glycol 1000 succinate (vitamin E TPGS or simply TPGS) liposomes and further conjugated them to trastuzumab for controlled and targeted delivery of docetaxel (DTX) as a model hydrophobic drug. METHODS: DTX- or coumarin-6-loaded liposomes were…
The glass transition refers to the nonequilibrium process by which an equilibrium liquid is transformed to a nonequilibrium disordered solid, or vice versa. Associated response functions, such as heat capacities, are markedly different on cooling than on heating, and the response to melting a glass depends markedly on…