Recently, there has been great interest in the synthesis and application of various kinds of nanostructured noble metals such as platinum, gold and silver. Nanostructured silvers have been widely investigated as antimicrobial materials, bio-sensors, catalysts, and advanced materials exhibiting surface plasmon resonance and surface enhanced Raman scattering. All this research is mainly based on ...

Aluminosilicates are widely used as sorbent materials, ion exchangers, and catalysts. While they often synthesized by hydrothermal methods, microorganisms may open “green” synthesis ways. Diatoms can incorporate aluminum into their micro- nanostructured silica-based cell walls. Thus, diatoms create intricately structured aluminosilicate materials. The present study investigates not only possibl...

BACKGROUND Aerogels are a versatile group of nanostructured/nanoporous materials with physical and chemical properties that can be adjusted to suit the application of interest. In terms of biomedical applications, aerogels are particularly suitable for implants such as membranes, tissue growth scaffolds, and nerve regeneration and guidance inserts. The mesoporous nature of aerogels can also be ...

A machine is a device that consists of a solid support with moving parts that carries out a desired function. A machine requires a source of power; light, electrical or chemical energy are the most common. In the case of a molecular machine, the support (or its critical components) must be of the appropriate dimensions (nanometers) in order for the device to function. In addition, the nanostruc...

Multimillion atom molecular-dynamics (MD) simulations are performed to investigate dynamics of oxidation of aluminum nanoclusters and properties and processes in nanostructured silicon carbide (n-SiC) and nanostructured amorphous silica (n-a-SiO2). The simulations are based on reliable interatomic interactions that include both ionic and covalent effects. The simulations are carried out on para...

Peripheral cyanobiphenyl dendrimers impose a microphase organization compatible with smectic mesomorphism, in which the bulky nine-coordinate lanthanide core is located between the decoupled mesogenic sublayers made up of parallel cyanobiphenyl groups.

Sanding to bury the overgrowth of uprights and promote new growth results in alternate sand organic sublayers 0–30 cm layer cranberry soils contributing global carbon storage. The aim this study was measure CO2 emission rates soil under simulated warming. Soil samples (0–10, 10–20 20–30 cm) were incubated jars for up 105 days at 10, 20 30 °C. rate measured biweekly by gas chromatography. increa...

We report a theoretical investigation on the band structures of electrons in both infinite and finite semiconductor quantum well/ barrier superlattices with each unit cell containing alternately two types of materials. When the unit cell of a superlattice, made of GaAs and AlxGa1 xAs, is further divided into four and six sublayers of these two materials, narrower passbands and/or broad stopband...

Supported catalysts are widely used in industry and can be optimized by tuning the composition and interface of the metal nanoparticles and oxide supports. Rational design of metal-metal oxide interfaces in nanostructured catalysts is critical to achieve better reaction activities and selectivities. We introduce here a new class of nanocrystal tandem catalysts that have multiple metal-metal oxi...