Materials Literature
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Gold nanorods were used as seeds for platinum growth, using a mild reducing agent, ascorbic acid, in the presence of the cationic surfactant cetyltrimethylammonium bromide (CTAB). Highly preferential growth on the tips or complete overcoating can be achieved by manipulation of the reduction conditions, among which the…
Nano-dimensional single-crystals of Fe, Mn, Co or Ni oxides have been prepared by the decomposition of their metal acetylacetonate at elevated temperatures in hexadecylamine. The amine acts as both a solvent and the capping agent. The crystalline structure and morphology of resulting samples have been characterized by…
A theoretical study of the write, read, and erase processes in electrical scanning probe storage on phase-change media is presented. Electrical, thermal, and phase-transformation mechanisms are considered to produce a physically realistic description of this new approach to ultrahigh-density data storage. Models devel…
This article overviews research in the interdisciplinary area of textile/skin interaction and related cutaneous intolerance. Microclimate in the skin/clothing system and especially the skin responses relates to the moisture and heat transfer within this system and plays a critical role in skin irritation from textiles…
Most long-range telecommunication systems are based upon microwave links. The transmitters use microwave amplifiers which in the very near future will be required to work at up to 30–100GHz with output power in the region of a few tens of watts. Carbon nanotubes (CNTs), which exhibit extraordinary field emission prope…
As the 21st century begins we are witnessing a paradigm shift in medical practice. Whereas the use of polymers in biomedical materials applications, for example as prostheses, medical devices, cont...
Apatite-type silicates have been attracting considerable interest as a new class of oxide ion conductor, whose conduction is mediated by interstitial oxide ions. We report here the first 29Si solid state NMR studies of these materials with a systematic investigation of thirteen compositions. Our results indicate a cor…
The paper describes the development of chemical modules simulating the prechemical and chemical stages of charged particle tracks in pure liquid water. These calculations are based on our physical track structure codes for electrons and ions (KURBUC, LEPHIST and LEAHIST) which provide the initial spatial distribution…
A simple method for surface functionalization of large-pore mesoporous silica by hyperbranching polymerization resulting in a high loading of amine groups is presented.
Macroporous polyacrylamide gels (MPAAGs) with unique elastic morphology and open porous structure are prepared at subzero temperatures. The porous structure of MPAAGs consisting of large, 1–100 µm-sized interconnected pores, is controlled by the freezing temperature, the content of the initiator system (ammonium persu…
This paper series presents detailed modeling and simulation studies of the nature of the impedance of solid oxide fuel cell ͑SOFC͒ anodes caused by gas-phase transport processes.The present part treats bulk gas-phase transport in button-cell experiments where gases are supplied from an outlet perpendicular to the elec…
The novel stilbazolium salt 4-N,N-dimethylamino-4′-N′-methyl-stilbazolium 2-naphthalenesulfonate (DSNS), has been synthesized and small single crystals were grown. The crystal structure of the resulting crystals was determined via X-ray crystallography and it was found to be non-centrosymmetric with the chromophores a…
When amorphous materials are compressed their structures are expected to change in response to densification. In some cases, the changes in amorphous structure can be discontinuous and they can even have the character of first-order phase transitions. This is a phenomenon referred to as polyamorphism. Most evidence fo…
Based on coarse grained simulations of a specially adapted model for bisphenol-A polycarbonate (BPA-PC) we generate by inverse mapping, the reintroduction of chemical details, well equilibrated all-atom conformations and time trajectories of dense polymeric melts for up to 7.8 µs. This is several orders of magnitude m…
The role of the polymeric binder nature and composition on the electronic transport properties of composite electrodes based on , carbon black (CB), and poly(ethylene oxide) (PEO)/poly(vinylidene difluoride)- co -hexafluoropropylene/ethylene carbonate–propylene carbonate (EC–PC)/Li bis(trifluoromethansulfon)imide bind…
Electrodes of hydrous ruthenium oxide were prepared by electrophoretic deposition (EPD) without binder and carbon additives. Through EPD and heat-treatment , a network of nanoparticles (ca. ) was developed with porous structure (packing density ca. ). As a result, high specific capacitance ( at and at ) was obtained,…
Abstract A new magnetic mesocellular mesoporous silica support featuring a 3D open‐pore structure has been developed for highly efficient, filtration‐free recycling of chiral ligands for catalytic asymmetric dihydroxylation. Reactions using the ligand immobilized on this magnetic silica system exhibited almost the sam…
Oscillations of a nominally hemispherical, inviscid drop on a solid plate are considered accounting for the contact line dynamics. Hocking boundary conditions hold on the contact line: the velocity of the contact line is proportional to the deviation of the contact angle from its equilibrium value. Natural oscillation…
It was recently shown that doxorubicin (DOX) bound to polysorbate-coated nanoparticles (NP) crossed the intact blood-brain barrier (BBB), and thus reached therapeutic concentrations in the brain. Here, we investigated the biodistribution in the brain and in the body of poly(butyl-2-cyano[3-(14)C]acrylate) NP ([(14)C]-…
Polycaprolactone (PCL) polyurethane (PU) grafted single-walled carbon nanotubes (SWNT-g-PU) were synthesized from hydroxyl functionalized single-walled carbon nanotubes (SWNT-OH) through a two-step reaction. Based on SWNT-g-PU, PCL polyurethane (PU)/SWNT nanocomposites were prepared by further in-situ polymerization.…