Materials Literature
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Oriented nanocrystals, as seen in biominerals, have both the macroscopic hierarchical morphologies and the nanoscale interspace among the unit crystals. Here we studied the incorporation effects of the specific interspace in the oriented nanocrystals on the morphologies, properties, and applications of organic crystal…
Abstract Y 2 O 3 :Eu 3+ nanoparticles (NPs), polyaniline (PANI), and Fe 3 O 4 NPs are incorporated into polymethyl methacrylate (PMMA) and electrospun into [Y 2 O 3 :Eu 3+ /PMMA]//[PANI/Fe 3 O 4 /PMMA] Janus nanobelts with Y 2 O 3 :Eu 3+ /PMMA as one half side and PANI/Fe 3 O 4 /PMMA as the other. The morphology and p…
FeSe1−xTex films with wide ranging strain and composition were deposited using pulsed laser deposition, and lattice parameters and critical temperature (Tc) were evaluated in the films to understand influence of strain and composition on Tc of FeSe1−xTex films. c was larger than that in bulk and a was smaller than the…
ABSTRACT A series of highly soluble aromatic polyimides with excellent thermal properties were fabricated by traditional two‐step polycondensation reaction of dianhydride monomer 4,4′‐(4,4′‐isopropylidenediphenoxy)bis(phthalic anhydride) or 4,4‐(hexafluoroisopropylidene)diphthalic anhydride with diamine monomer 1,3‐bi…
The oxygen potentials of (Pu0.928Am0.072)O2–x were measured as a function of oxygen to metal ratio (O/M) in the temperature range from 1473 to 1873 K by the gas equilibrium method using thermogravimetry. The measured data were about 200 kJ/mol higher in the O/M ratio range from 2.00 to 1.96 and about 50 kJ/mol higher…
We have investigated the vertical growth of citrate-free Ag nanoplates into truncated right bipyramids and twinned cubes with truncated corners in the presence of Cl(-) ions at low and high concentrations, respectively, with Au serving as a marker for electron microscopy analysis. Both the Cl(-) ions and Au atoms coul…
<p>During the exploration of outer space (as of 1/1 2011) 6853 was launched spacecraft (SC) are successful 6264, representing 95% of the total number of starts. The most intensively exploited space Russia (USSR) (3701 starts, 94% successful), USA (2774 starts, 90% successful), China (234 starts, 96% successful)…
Isothermal experiments are widely employed to study the kinetics of solid-state reactions or processes to extract essential kinetic information needed for modeling the processes at an industrial scale. The kinetic analysis of isothermal data requires finding or assuming a kinetic function that can properly fit the evo…
We investigate the effects of homogeneous and inhomogeneous deformations and edge disorder on the conductance of gated graphene nanoribbons. Under increasing homogeneous strain the conductance of such devices initially decreases before it acquires a resonance structure and, finally, becomes completely suppressed at hi…
-modes of the AgCl-Ag waveguide. The interference pattern determines the grating constant of the resulting spontaneous periodic nanostructures. Also, our studies indicate a strong dependence of the shape and size distribution of the formed Ag nano-coalescences on the wavelength of the incident beam. It also influences…
Fluorescent conjugated materials exhibiting reasonable biocompatibility that are capable of interacting with biological molecules are of interest for bio-sensing and imaging applications. Traditional approaches do not allow for the synthesis of conjugated materials in the presence of biologically relevant substrates.…
In this paper, novel approaches for the synthesis of Type-II core/shell quantum dots (ZnTe/ZnSe QDs) and Mn <sup>2+</sup> -doped Type-II core/shell quantum dots (Mn : ZnTe/ZnSe QDs) with mercaptopropionic acid (MPA) as stabilizer were proposed.
The efficient removal of trace carcinogenic organic pollutants, such as polycyclic aromatic hydrocarbons (PAHs) and ionic dyes, from water is an important technical challenge. We report a highly effective recyclable multifunctional azobenzene (AZ)-based silica-supported polymeric adsorbent which can simultaneously rem…
An analytical study is presented of the double resonant Raman scattering process in graphene, responsible for the D and ${\mathrm{D}}^{\ensuremath{'}}$ features in the Raman spectra. This work yields analytical expressions for the D and ${\mathrm{D}}^{\ensuremath{'}}$ integrated Raman intensities that explicitly show…
Due to increasing application, release of nanoparticles (NPs) and nanomaterials into the environment becomes likely. Knowledge about NP uptake in organisms is crucial for risk assessment including estimations on the behavior of NPs based on their physicochemical properties. In the present study, the authors have appli…
The noncovalent binding of the gold hemispheres of polystyrene/gold colloidal Janus spheres in aqueous solution was found to depend more significantly on the deposition thickness of the particle's gold layer than the chemistry of a covalently affixed self-assembled monolayer on the gold. By means of two-channel confoc…
Monodisperse and water-soluble Cys-Au dots with near-infrared emission successfully prepared by a one-pot synthesis approach, and the as-prepared Au dots could be used for long-term tumor cell imaging and highly selective detecting Pb <sup>2+</sup> .
Investigation of crystal structure, microstructure, local ferroelectric, and magnetic properties of the aliovalent-doped Bi0.95Ca0.05Fe1−yByO3 (B = Ti and Mn; y = 0, 0.05, 0.1) perovskites has been carried out at room temperature to illustrate the role of anion vacancies in the suppression of cycloidal antiferromagnet…
Eu 2+ doped Sr 2 Al 2 SiO 7 cyan-green emitting phosphors have been synthesized with solid-state reaction method. With Rietveld refinement technique, Sr 2 Al 2 SiO 7 equivalent sites and atomic positions were acquired. The Sr 2 Al 2 SiO 7 :Eu 2+ photoluminescence at room and high temperature were investigated. This ph…
Surface-enhanced Raman scattering (SERS) spectroscopy was employed in the present work to elucidate the adsorption of two diisocyanide molecules: 1,4-phenylenediisocyanide (PDI) and 1,4″-terphenylenediisocyanide (TPDI) on nanogaps of Ag and Au nanoparticles (NPs). The main goal of this work was the study of the adsorp…