Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Nanophotothermolysis with long laser pulses for treatment of scattered cancer cells and their clusters is introduced with the main focus on real-time monitoring of temperature dynamics inside and around individual cancer cells labeled with carbon nanotubes. This technique utilizes advanced time- and spatially-resolved…
A systematic synthesis of homogeneously distributed lanthanide trifluoride (from LaF3 to LuF3) nanocrystals in the same aluminosilicate glass matrix was reported. These fluorides exhibit dimorphism, i.e., the hexagonal structure for those from LaF3 to GdF3 and the orthorhombic one for those from TbF3 to LuF3 (includin…
Taking the inspiration from the biomineral, the silk sericin was selected to modulate the assembly of nanosized hydroxyapatite crystals via a modified co-precipitation method. The effect of silk sericin concentration and mineralization time on the formation of hydroxyapatite nanocrystals, including their nucleation, g…
A series of new magnetically recyclable catalysts (MRCs), Ag-M(1-x)Fe(2+x)O(4) (M = Co, Ni, Mn, Zn) nanocomposites, have been synthesized via a generalized one-pot route, and these materials prove to be efficient MRCs in the catalytic epoxidation of styrene. Characterization by X-ray diffraction (XRD), scanning electr…
Anodic polarization behaviors of Pd-M (M=Fe, Co, Ni) alloys in H2SO4 solution are investigated for the preparation of nanoporous palladium by dealloying. For Pd0.2Co0.8 alloy, the current monotonically increased with the increase in potential. However, anodic polarization curves for Pd0.2Fe0.8 and Pd0.2Ni0.8 alloys sh…
Two series of structurally analogous esters (1) and diazenes (2) derived from the [closo-1-CB9H10]− anion and containing two or three rings in the rigid core were prepared and their liquid crystalline properties investigated. Salts containing NMe4+ or NHEt3+ counterion do not exhibit mesophases, whereas the ion pairs…
A range of uniform, micrometer-sized poly(methyl methacrylate) latexes have been coated with ultrathin overlayers of polypyrrole from aqueous solution. Good control over the targeted conducting polymer overlayer thicknesses is achieved for a 1.19 µm diameter latex and latexes of up to 30 µm diameter can also be effici…
We report a kinetic study of the supramolecular tubule formation of the bile salt derivative [3β,5β,7α,12α]-3-(4-t-butylbenzoilamine)-7,12-dihydroxycholan-24-oic acid sodium salt (Na-tbutPhC). At high bicarbonate buffer concentration (pH∼10) this salt shows gelator properties. Starting from gels or viscous solutions,…
In this paper, we report a soft route leading to small gold nanoparticles confined within the framework of 2D-hexagonal mesoporous SH-functionalised silicas. For that purpose, a hydrophilic bis-silylated precursor containing a disulfide unit was prepared. Framework-functionalised materials were obtained in one step by…
Sintered nanosilver is a lead-free die-attach material that could substitute for solder alloys and conductive epoxies for packaging power semiconductor devices, especially for high-temperature applications. While the maximum use temperature of a solder is limited by its melting point, the sintered silver joint can be…
The two new tripodal picolinate H(3)ebpatcn (1-carboxyethyl-4,7-bis((6-carboxypyridin-2-yl)methyl)-1,4,7-triazacyclononane) and H(4)pbpatcn (1-methylphosphonic-acid-4,7-bis((6-carboxypyridin-2-yl)methyl)-1,4,7-triazacyclononane) ligands based on the 1,4,7-triazacyclononane anchor were prepared and their lanthanide com…
We modulate precisely the surface morphology of polymer microcapsules containing perfluorooctyl bromide prepared by the solvent-evaporation technique by varying the percentage of PLGA-PEG copolymer in the formulation. As copolymer percentage increases, protrusions start to appear, become more numerous and finally fuse…
Applying sufficiently strong shear to thin films of a sphere-forming polystyrene–polyisoprene diblock copolymer is shown to induce an order-order transition to cylinders. The transformation is not continuous or epitaxial, as the intercylinder spacing is ca. 10% greater than the spacing between close-packed lines of sp…
The sulfiding of benzils with P(4)S(10) in 1,3-dimethyl-2-imidazolidinone (DMI) as solvent allows for a direct synthesis of neutral radical, gold dithiolene complexes based on 1,2-bis-(4-alkoxy-phenyl)ethylene-1,2-dithiolate ligands with n-butyl, n-octyl and n-dodecyl chains. The three neutral and soluble complexes Au…
Systematic fabrication of nanoparticle stabilizers can substantially modify the properties of prepared nanoparticles; here the synthesis of solubility adjustable nanoparticles is achieved by employing a family of polarity modulated stabilizers.
We report direct measurements of the pairwise interparticle potential between poly(N-isopropylacrylamide-co-acrylic acid) (pNIPAm-co-AAc) colloidal microgels as a function of pH, as determined through Ornstein–Zernike analysis of the pair distribution function of quasi-2D dilute colloidal suspensions. The interaction…
Hierarchical gamma-Al2O3 monoliths with interconnected macroporous architecture and highly ordered 2D hexagonal mesostructure have been synthesized by using nonionic triblock copolymer and polyurethane foam as co-templates.
Polylactide–flax fiber composites with 1, 10 and 20 wt% fiber were melt-compounded and subsequently molded via the conventional and microcellular injection-molding processes. Silane was used as a coupling agent. The effects of fiber and silane content on cell morphology, static and dynamic mechanical properties, and c…
Der Begriff Auto-ID (automatische Identifizierung) steht für Techniken, die zur technikunterstützten Identifizierung, Erhebung, Erfassung und Übertragung von Daten dienen.
The crystallization of the amorphous Ge 2 Sb 2 Te 5 film was investigated by in situ electrical sheet resistance measurement. The crystallization start temperature increases logarithmically with heating rate and is equated. The effective activation energy E A of the crystallization is 2.34 eV at slow heating rates bel…