Materials Literature
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PURPOSE: In vitro evaluation of labeling efficiency of human mesenchymal stem cells (hMSCs) with different types of superparamagnetic iron oxide nanoparticles as well as detection and quantification by MRI at 3T. MATERIAL AND METHODS: hMSCs were incubated for 24 hours with 5 ultrasmall superparamagnetic particles of i…
The ferromagnetic state of thin ${\mathrm{Ga}}_{1\ensuremath{-}x}{\mathrm{Mn}}_{x}\mathrm{As}$ layers ($d=300\phantom{\rule{0.3em}{0ex}}\mathrm{nm}$; $x=0.014$, $p=6.7\ifmmode\times\else\texttimes\fi{}{10}^{19}\phantom{\rule{0.3em}{0ex}}{\mathrm{cm}}^{\ensuremath{-}3}$, ${T}_{C}=40\phantom{\rule{0.3em}{0ex}}\mathrm{K}…
We have performed numerical calculations and experimental studies on the dipole-dipole interaction in the hexagonal nanowire arrays. Using the dipole approximation with a length correction, the dipolar fields in the cylindrical wire arrays were calculated. By means of M\"ossbauer spectroscopy, the dipolar fields in th…
The synthesis of two chiral isomers of 3-substituted polythiophenes, with cationic side-chain functionalities, and their use as conformational sensitive optical probes for the recording of pH-induced conformational changes in a synthetic peptide are reported. The conformational changes of the synthetic peptide gives r…
This contribution describes the synthesis of gold nanorod (Au NR)/single-wall carbon nanotube (SWCNT) heterojunctions assembled directly on Si/SiOx substrates. SWCNTs are attached to amine-functionalized Si/SiOx substrates, and Au monolayer-protected clusters (MPCs) are adsorbed to the surface of SWCNTs through hydrop…
Ba 0.96 Ca 0.04 Ti 0.84 Zr 0.16 O 3 (BCTZ) and Ba0.5Sr0.5TiO3 (BST) thin films were deposited at a substrate temperature of 450°C via rf magnetron sputtering to form Pt∕BCTZ∕Pt and Pt∕BST∕Pt capacitors. BCTZ thin films hold promise as an alternative to BST in capacitor applications due to the resistance of BCTZ to red…
Faraday rotation in the terahertz frequency range was observed in molecular magnetic systems. The effect is strongest near the magnetic resonance of the single molecule magnet ${\mathrm{Mn}}_{12}\mathrm{Ac}$ at $\ensuremath{\nu}=300\phantom{\rule{0.3em}{0ex}}\mathrm{GHz}$, where the Faraday rotation exceeds $150\ifmmo…
Abstract Al(OH) 3 as flame retardant and smoke suppressant for flexible poly(vinyl chloride) was evaluated alone and with ZnO, using thermal analytical techniques, limiting oxygen index and smoke density rating tests. The thermal behavior and flammability of the samples treated with Al(OH) 3 and ZnO were studied by di…
We perform molecular dynamics simulations of a one-component glass-forming liquid and use the inherent structure formalism to test the predictions of the Adam-Gibbs (AG) theory and to explore the possible connection between these predictions and spatially heterogeneous dynamics. We calculate the temperature dependence…
Abstract The effect of nucleating agents on the polymorphic crystallization behavior of poly(butylene adipate) (PBA) was studied with four kinds of commercially available nucleating agents, such as talc and boron nitride. The crystal structures of the α and β forms were studied with wide‐angle X‐ray diffraction. The β…
We predict the appearance of a uniform magnetization in strained three-dimensional $p$-doped semiconductors with inversion symmetry breaking subject to an external electric field. We compute the magnetization response to the electric field as a function of the direction and magnitude of the applied strain. This effect…
In 1996, R. T. K. Baker, and N. M. Rodriguez claimed to have synthesized a new type of carbon nanofiber material capable of storing large amounts of hydrogen at room temperature and pressures above 100 bar, thus making it a powerful candidate for a very efficient energy storage system in mobile applications. Consequen…
Abstract Hydrophilic blend matrices of crosslinked starch and carboxymethyl cellulose were synthesized and their susceptibilities to enzymatic degradation were assessed by taking α‐amylase as a model enzyme. The polymeric blends were characterized by FT‐IR spectroscopy, differential scanning calorimetry and scanning e…
Multiwall carbon nanotubes (MWCNTs) dispersed on graphite on highly oriented pyrolytic graphite (HOPG) substrate were irradiated with ${\mathrm{Ar}}^{+}$ ions of $30\phantom{\rule{0.3em}{0ex}}\mathrm{keV}$. The irradiated samples were investigated by scanning tunneling microscopy (STM) and spectroscopy (STS) in air. T…
A fundamental understanding of multivalency can have a profound influence on bottom-up nanofabrication. For this purpose, three different types of ferrocenyl (Fc) functionalized dendrimers of generations 1-5 with various spacer groups were adsorbed at self-assembled monolayers (SAMs) of heptathioether-functionalized b…
The resonance Raman profile of the radial-breathing mode is calculated for all 300 single-walled carbon nanotubes in the radius range from $2\phantom{\rule{0.3em}{0ex}}\mathrm{\AA{}}\phantom{\rule{0.3em}{0ex}}\text{to}\phantom{\rule{0.3em}{0ex}}12\phantom{\rule{0.3em}{0ex}}\mathrm{\AA{}}$ and for all optical transitio…
The electronic structure of bulk $\ensuremath{\gamma}$-alumina is investigated using Density Functional Theory. Recent theoretical structures, including occupation of nonspinel positions, are used as starting point for energy minimization, allowing for relaxation of the cell shape and the ionic positions. A comparison…
Two molecules of planar MII(acac)2 complexes (M = Pt, Pd, and, Cu; acac = acetylacetonato) are efficiently stacked within an organic-pillared coordination cage, exhibiting characteristic spectroscopies (for M = Pt and Pd) and electron spin-spin coupling (for M = Cu) attributable to metal-metal interaction.
The 1A1 left arrow over right arrow 5T2 spin transition has been investigated in the solid solutions of Fe(x)M(1-x)(pyrazine)[Pt(CN)4] (M = Ni or Co, 0 < or = x < or = 1) having a three-dimensional polynuclear structure. Both Ni and Co dilutions tend to decrease the hysteresis width and smooth the transition curves. T…
The exceptional fluorescence properties of single CdSe quantum rods (QRs) arising from internal and external electric fields are studied. Reversible external field induced switching of the emission in single QRs is reported for the first time. This effect was correlated with local field induced emission intensity redu…