Materials Literature
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Polymeric micelles are ideal carriers for solubilization and targeting applications using hydrophobic drugs. Stability of colloidal aggregates upon injection into the bloodstream is mandatory to maintain the drugs' targeting potential and to influence pharmacokinetics. In this review we analyzed and discussed the most…
The lattice thermal conductivity of (Bi${}_{1\ensuremath{-}x}$Sb${}_{x}$)${}_{2}$Te${}_{3}$ alloys, with and without spherical nanoparticle inclusions, has been computed using the Boltzmann transport equation with classical interatomic potentials within the relaxation time approximation. The experimental thermal condu…
We report a study of the spin moment in single crystal Nb${}_{(1\ensuremath{-}y)}$Fe${}_{(2+y)}$ with $y=0.015$ using spin-dependent Compton scattering in conjunction with ab initio electronic structure calculations. From the experiment, we find that the total spin moment is $0.245\ifmmode\pm\else\textpm\fi{}0.004{\en…
Abstract Several new synthetic routes to the known and new magnesium amidoborane complexes, [{(Nacnac)Mg(NH 2 BH 3 )} 2 ] and [(Nacnac)Mg(NH 2 BH 3 )(THF)] (Nacnac = Dip Nacnac, [{N(Dip)C(Me)} 2 CH] – , or t Bu Nacnac, [{N(Dip)C( t Bu)} 2 CH] – ; Dip = C 6 H 3 i Pr 2 ‐2,6), are reported. These include the reductive de…
We report on a systematic study of the temperature-dependent Hall coefficient and thermoelectric power in ultrathin metallic LaNiO${}_{3}$ films that reveal a strain-induced, self-doping carrier transition that is inaccessible in the bulk. As the film strain varies from compressive to tensile at fixed composition and…
Abstract The introduction of functionalities to synthetic biomaterials represents a major direction and a significant challenge in biomedical engineering. A synthetic platform using novel acid‐induced epoxide ring‐opening polymerization promoted by a newly designed catalyst to produce a variety of biodegradable and fu…
Abstract The understanding of polarization switching dynamics of ferroelectrics is of great importance for practical applications and has been steadily advanced for ferroelectric ceramics and polymers for more than half a century. The temporal behaviour of polarization reversal in ferroelectric copolymers such as P(VD…
The effects of impurity iron content on characteristics of sintered reaction‐bonded silicon nitrides were examined by adding iron powder to a high purity raw Si powder. Powder compacts of the raw Si powder doped with 2 mol% Y 2 O 3 and 5 mol% MgSiN 2 as sintering additives and Fe as impurity (0 mass%, 0.1 mass%, 1.0 m…
Assembly and directed orientation of anisotropic particles with an external ac electric field in a range from 1 kHz to 2 MHz were studied for asymmetric composite dumbbells incorporating a silica, titania, or titania/silica (titania:silica = 75:25 vol %) sphere. The asymmetric composite dumbbells, which were composed…
Single-wall carbon nanotubes (SWCNTs) are increasingly being investigated for use in biomedical applications for intracellular imaging and ablation, as well as vehicles for drug and gene delivery. One major obstacle to the development of safe, controlled, and effective SWCNT-based biomedical materials is limited quant…
The possibilities of calibrations by silver behenate [CH 3 (CH 2 ) 20 COOAg] and silver stearate [CH 3 (CH 2 ) 16 CO 2 Ag] for the small angle scattering (SAS) technique are considered. It was shown that the long-period spacing of the silver compounds allow us to check the parameters of time-of-flight (TOF) method. Re…
Abstract Polylactide (PLA) blends with 0–40 wt % gelatinized starches (GSs) in the presence of plasticizers and compatibilizer for improving interfacial bonding between two phases were prepared. The effects of compatibilizer, type and amount of starch, including type and concentration of plasticizer on the physical, m…
Transmembrane transport: A combination of photon and fluorescence correlation spectroscopies is used to study the internalization of nanoparticles into a minimal model system based on poly(dimethylsiloxane)-block-poly(2-methyloxazoline) vesicles (see picture). These techniques provide information about the kinetics an…
Long vertically aligned ZnO nanowire arrays were synthesized using an ultra-fast microwave-assisted hydrothermal process. Using this method, we were able to grow ZnO nanowire arrays at an average growth rate as high as 200 nm min(-1) for maximum microwave power level. This method does not suffer from the growth stoppa…
We report on the study of a set of rhenium oxide reference compounds (NH${}_{4}$ReO${}_{4}$, NaReO${}_{4}$, ReO${}_{3}$, ReO${}_{2}$, and Re${}_{2}$O${}_{7}$) using x-ray-absorption near-edge structure. The parallel use of Re ${L}_{1}$ and ${L}_{3}$ absorption edges permits a concomitant understanding of both the oxid…
Single crystals of sodium bismuth titanate (Na 0.5 Bi 0.5 TiO 3 , NBT) (pure and Mn-doped) have been investigated by means of optical birefringence microscopy. For both crystals, it was found that, above ∼573 K, the optical axis is perfectly aligned with one of the pseudocubic 〈001〉 PC directions, while the domain wal…
The synthesis, spectroscopic, and electrochemical properties of seven new P(V)-meso-triarylcorroles (1-7) are reported. Compounds 1-7 were prepared by heating the corresponding free-base corroles with POCl(3) at reflux in pyridine. Hexacoordinate P(V) complexes of meso-triarylcorroles were isolated that contained two…
Efficient intracellular delivery of gold nanoparticles (AuNPs) and unraveling the mechanism underlying the intracellular delivery are essential for advancing the applications of AuNPs toward in vivo imaging and therapeutic interventions. We employed fluorescence microscopy to investigate the internalization mechanism…
We describe the use of electron channeling contrast imaging in the scanning electron microscope to rapidly and reliably image and identify threading dislocations (TDs) in materials with the wurtzite crystal structure. In electron channeling contrast imaging, vertical TDs are revealed as spots with black-white contrast…
A simple (5 + 6 + 7)-sp(3) carbon (denoted as F-carbon) with eight atoms per unit cell predicted by a newly developed ab initio particle-swarm optimization methodology on crystal structure prediction is proposed. F-carbon can be seen as the reconstruction of AA-stacked or 3R-graphite, and is energetically more stable…