Materials Literature
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We investigate vortices in LiFeAs using scanning tunneling microscopy/spectroscopy. Zero-field tunneling spectra show two superconducting gaps without detectable spectral weight near the Fermi energy, evidencing fully gapped multiband superconductivity. We image vortices in a wide field range from 0.1 T to 11 T by map…
Many of the interesting properties that make Ta 2 O 5 a strategic material for current and future applications in chemistry, microelectronics and optics, depend on its structural characteristics. In this work, we use Raman spectroscopy to probe structural modifications in amorphous Ta 2 O 5 coatings submitted to therm…
BACKGROUND: Degummed silk fibroin from Bombyx mori (silkworm) has potential carrier capabilities for drug delivery in humans; however, the processing methods have yet to be comparatively analyzed to determine the differential effects on the silk protein properties, including crystalline structure and activity. METHODS…
ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTHigh Efficiency Low-Power Upconverting Soft MaterialsJae-Hyuk Kim†, Fan Deng‡, Felix N. Castellano*‡, and Jae-Hong Kim*†View Author Information† School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States ‡ Depa…
Multimodal imaging is highly desirable for accurate diagnosis because it can provide complementary information from each imaging modality. In this study, a sol-gel reaction of tantalum(V) ethoxide in a microemulsion containing Fe(3)O(4) nanoparticles (NPs) was used to synthesize multifunctional Fe(3)O(4)/TaO(x) core/s…
The registration and alignment of a monolayer of microdomains in a self-assembled block copolymer thin film can be controlled by chemical or physical templating methods. Although planar patterns are useful for nanoscale device fabrication, three-dimensional multilevel structures are required for some applications. We…
The introduction of foreign atoms, such as nitrogen, into the hexagonal network of an sp(2)-hybridized carbon atom monolayer has been demonstrated and constitutes an effective tool for tailoring the intrinsic properties of graphene. Here, we report that boron atoms can be efficiently substituted for carbon in graphene…
Understanding damage and failure of composite materials is critical for reliable and cost-effective engineering design. Bringing together materials mechanics and modeling, this book provides a complete guide to damage, fatigue and failure of composite materials. Early chapters focus on the underlying principles govern…
The production of engineered nanomaterials (ENMs) is a scientific breakthrough in material design and the development of new consumer products. While the successful implementation of nanotechnology is important for the growth of the global economy, we also need to consider the possible environmental health and safety…
Stable quantum bits, capable both of storing quantum information for macroscopic time scales and of integration inside small portable devices, are an essential building block for an array of potential applications. We demonstrate high-fidelity control of a solid-state qubit, which preserves its polarization for severa…
Although the precise microscopic knowledge of van der Waals interactions is crucial for understanding bonding in weakly bonded layered compounds, very little quantitative information on the strength of interlayer interaction in these materials is available, either from experiments or simulations. Here, using many-body…
In this work we have studied the dielectric properties of five unsymmetrical azomethine (A1−A5) liquid crystals prepared from different aldehydes or obtained from various amines. The effects of rod length and type of terminal chains on the thermal and mesomorphic behaviours were investigated by dielectric spectroscopy…
Fluorescence resonance energy transfer (FRET) is an important photophysical mechanism which finds many applications in biophotonics, particularly in biological sensing and imaging. It is well known, there are two major factors that determine the efficiency of FRET. One is the distance between the donor and the accepto…
ADVERTISEMENT RETURN TO ISSUEPREVAddition/CorrectionNEXTORIGINAL ARTICLEThis notice is a correctionTerminal Gold-Oxo ComplexesRui Cao, Travis M. Anderson, Paula M. B. Piccoli, Arthur J. Schultz, Thomas F. Koetzle, Yurii V. Geletii, Elena Slonkina, Britt Hedman, Keith O. Hodgson, Kenneth I. Hardcastle, Xikui Fang, Mart…
KEY TERMS: Drug delivery, pulmonary delivery, oral delivery, nasal delivery, transdermal delivery, circulation time, biodistribution, excretion, blood-brain barrier Polymeric nanoparticle delivery systems have the potential to signicantly impact the treatment of cancer. Nanoparticle drug delivery systems offer the abi…
Abstract BACKGROUND: The main objective of this work was to evaluate the parametric sensitivity of model parameters of clavulanic acid (CA) adsorption in a stirred‐tank reactor using zeolites. The system sensitivity was evaluated in terms of mass transfer and hydrodynamic parameters using two methodologies. First, the…
Selbstassoziate der Titelverbindung 1 ändern sich von definierten Bändern über Vesikel zu Körben (siehe Bild) bei Verringerung der Konzentration in Tetrahydrofuran. Elektronenmikroskopie zeigte eine einzigartige selbstorganisierte Struktur: Körbe werden von gebogenen und eingewickelten nanometerdünnen Bändern gebildet…
Abstract A new method for the preparation of metal–polymer composite materials is described. This new approach of doping of metals is based on the thermolysis of a zero‐valent complex. Specifically, several polymer@Fe‐composite powders were prepared and fully characterized. Iron doped with polydimethylsiloxane showed…
Ultrasound process parameters had infl uence on the temperature increase as result of wave propagation throughout medium. Cavitation as the most accepted mechanism is based on the implosion of bubbles in surrounding media (Bosiljkov et al., 2011; Brncic et al., 2010; Price et al., 2010; Thiemann et al., 2011). Effi ci…
We report on the structural, spectroscopic and radiative emission characteristics of Eu-doped BaTiO3 (BT) nanosystem as compared to the pure BT system. The structural analysis was performed by X-ray diffraction (XRD) studies where the nanoscale BT sample exhibits a perovskite structure with most intense peak along (1…