Materials Literature
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Carbon nanomaterials, such as carbon nanohorns and carbon nanotubes, have attracted considerable attention for their biomedical applications. We report here the first application of carbon nanohorns (CNHs) as potent laser therapeutic agents for highly selective elimination of microorganisms. This is the first report,…
A study of the accurate electron-density distribution in molecular crystals at subatomic resolution (better than approximately 1.0 A) requires more detailed models than those based on independent spherical atoms. A tool that is conventionally used in small-molecule crystallography is the multipolar model. Even at uppe…
A simple template assisted approach for fabricating I–III–VI semiconductor nanowire arrays is presented. Vertically aligned arrays of CuInSe 2 (CIS) nanowires of controllable diameter and length were synthesized by pulse cathodic electrodeposition from a novel acidic electrolyte solution into anodized alumina (AAO) te…
The effects of single-walled carbon nanotubes (SWNTs), double-walled carbon nanotubes (DWNTs) and multi-walled carbon nanotubes (MWNTs) on the proliferation, differentiation, adipocytic transdifferentiation and mineralization of primary osteoblasts were investigated. SWNTs, DWNTs and MWNTs with the same mean length of…
Pure monazite-type monoclinic ( m -) and zircon-type tetragonal ( t -) phased LaVO 4:Ln (Ln = Eu, Sm, and Dy) nanocrystals could be obtained by a facile hydrothermal method in a controllable way without the presence of catalysts or templates. High-resolution transmission electron micrographs of the as-obtained samples…
Abstract PHA‐based extruded films were developed by blending PHAs with thermoplastic starch using extensive process engineering based on structure‐property correlations. Starch was destructurized and plasticized followed by melt‐blending with PHA and PBAT. Dynamic mechanical analysis coupled with Gibbs free energy val…
Island clusters: By using kinetic control, stable Agn clusters (n≤10) are synthesized in microemulsions. Nanoislands composed of the subnanosized clusters can be deposited onto a substrate (see picture). The clusters are characterized by a variety of methods, including scanning tunneling microscopy (STM), mass spectro…
Improved probes for amyloid fibril formation are advantageous for the early detection and better understanding of this disease-associated process. Here, we report a comparative study of eight luminescent conjugated polythiophene derivates (LCPs) and their discrimination of a protein (insulin) in the native or amyloid-…
The present work is based on the theoretical study of the behavior of a graphene sheet decorated with titanium, in contact with different molecules. When the substrate is exposed only to hydrogen molecules, it is found to store up to four molecules per adatom, as already seen in the literature for single wall carbon n…
Going to extremes: A high-pressure borate was obtained under extreme conditions. In this species, each BO4 tetrahedron is connected to a second BO4 tetrahedron through a common edge (see structure).
Human endothelial and lung epithelial cells were exposed to nanosized Pt shapes following acellular analyses of their oxidant potential. Despite clear evidence of particle uptake by cells, the Pt nanoparticles were not found to induce cytotoxicity or oxidative stress in either cell type. Results from in vivo respirato…
Nephrogenic systemic fibrosis (NSF) is a relatively new entity, first described in 1997. Few cases have been reported, but the disease has high morbidity and mortality. To date it has been seen exclusively in patients with renal dysfunction. There is an emerging link with intravenous injection of gadolinium contrast a…
Bioresorbable new terpolymers of L-lactide, glycolide, and trimethylene carbonate with different compositions were synthesized via ring-opening polymerization reaction of the cyclic monomers using low-toxicity zirconium(IV) acetylacetonate as initiator. The thermal and mechanical properties were investigated by means…
Remote control over reactions in multicompartment capsules is investigated. Dual-compartment capsules were constructed by consecutive fabrication of the inner and the outer parts of CaCO3 microcapsules separated by a polyelectrolyte multilayer IR-sensitized by nanoparticle doping. Upon near-infrared laser illumination…
Carbon nanotubes have high strength, light weight and excellent energy absorption capacity and therefore have great potential applications in making antiballistic materials. By examining the ballistic impact and bouncing-back processes on carbon nanotubes, this investigation shows that nanotubes with large radii withs…
In this article, near-infrared (NIR) CdHgTe alloyed quantum dots (QDs) were directly synthesized in water by heating a mixed solution of CdCl 2, Hg(ClO 4 ) 2 and NaHTe in the presence of thiol stabilizers. The CdHgTe QDs exhibit photoluminescence (PL) ranging from 600 to 830 nm that can be tuned by size and compositio…
Here we report experimental results for a carbon nanotube (CNT) based amplitude-modulated (AM) demodulator for modulation frequencies up to 100 kHz. Further, the CNT based demodulator was successfully demonstrated in an actual AM radio receiver operating at a carrier frequency of 1 GHz and capable of demodulating high…
This work considers the g-tensor anisotropy induced by the flexural thermal vibrations in one-dimensional structures and its role in electron spin relaxation. In particular, the mechanism of spin-lattice relaxation via flexural modes is studied theoretically for localized and delocalized electronic states in semicondu…
Here we explore the radiation features of optical nanoantennas, analyzing the concepts of input impedance, optical radiation resistance, impedance matching and loading of plasmonic nanodipoles. We discuss how the concept of antenna impedance may be applied to optical frequencies, and how its quantity may be properly d…
Ferromagnetic resonance has been used to study the magnetic properties and magnetization dynamics of polycrystalline Fe$_{1-x}$V$_{x}$ alloy films with $0\leq x < 0.7$. Films were produced by co-sputtering from separate Fe and V targets, leading to a composition gradient across a Si substrate. FMR studies were conduct…