Materials Literature
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In this study, we have evaluated the pulmonary toxicity of MgO nanoparticles (MgO NPs) in rats following their exposure. NPs in phosphate buffered saline + 1% Tween 80 were exposed via intratracheal instillation at a doses of 1 mg/kg or 5 mg/kg into rat lungs and evaluated for various tissue damage markers like alkali…
Doping can strongly influence the crystal growth of semiconductor nanocrystals. It can change the surface energy and therefore the growth directions and shape of the host nanocrystals. While doping of transition metal ions in various semiconductor host nanocrystals is widely studied for obtaining new material properti…
A linear trimeric cluster of molecular formula [Ni2Gd(L(-))6](NO3) (1) (L(-) = (C14H12NO2) has been isolated with its structure determined via single crystal X-ray diffraction. Magnetic susceptibility measurements of 1 show that the nickel and gadolinium ions are coupled ferromagnetically, with a ground total spin sta…
The adsorption of gold has been investigated on crystalline and defect-poor CeO 2 (111) films by means of low-temperature scanning tunneling microscopy and spectroscopy. At low coverage, individual Au atoms are observed that homogenously distribute on the ceria surface and show no preference for binding at step edges.…
Both surface elasticity and surface stress can result in changes of resonant frequencies of a micro/nanostructure. There are infinite combinations of surface elasticity and surface stress that can cause the same variation for one resonant frequency. However, as shown in this study, there is only one combination result…
ABSTRACT We have developed a new strategy for the synthesis of epoxide‐containing polymers where the pendant reactive groups are connected to the main backbone via thermally labile oxonorbornene groups. The polymers were synthesized by radical 1,4‐polymerization of the appropriate bicyclic diene monomer. The produced…
In this paper it is shown that modest calculations combining first principles evaluations of the molecular properties with electrostatic interaction schemes to account for the crystal environment effects are reliable for predicting and interpreting the experimentally measured electric linear and second-order nonlinear…
The accurate 1 H positions of alanine-glycine alternating copolypeptide, (AG) 15 with Silk I structure were determined. For the purpose, the geometry optimization was performed starting with the atomic coordinates of the hetero atoms reported previously ( Macromolecules 2005, 38, 7397−7403) and applied only for proton…
The effect of uniaxial tensile strain on individual ZnO nanowires with diameters ranging from 500 nm to 2.7 μm and the effect of pure bending strain on ZnO microwires are systematically investigated by Raman spectroscopy. It is found for the first time that the tensile and compressive strains result in a linear downsh…
The sorption behaviors of M(II) (M = Cu, Cd) were investigated from their aqueous solution by magnetic Mn-doped Fe(III) oxide nanoparticle implanted graphene (GMIO) at varying pH, contact times, and concentrations. Kinetically, the pseudo-second-order equation governed the overall sorption process at optimized pH (5.1…
Using colloidal CdSe nanowire (NW) field-effect transistors (FETs), we demonstrated the dependence of carrier transport on surface stoichiometry by chemically manipulating the atomic composition of the NW surface. A mild, room-temperature, wet-chemical process was devised to introduce cadmium, selenium, or sulfur adat…
The valley pseudospin is an inherent electron degree of freedom in graphene. This work establishes a theory for manipulation of valley pseudospins at the quantum level, in bilayer graphene. Two key mechanisms of valley manipulation are proposed and valley-based quantum devices---qubits and field-effect transistors---a…
High Resolution Image Download MS PowerPoint Slide The mass transport of a number of molecules dissolved in a liquid solvent through the shells of Pt@SiO 2 core–shell and Pt@Void@TiO 2 yolk–shell nanostructures was characterized in situ by infrared absorption spectroscopy. Our samples, which were used here to represen…
We report the momentum-resolved measurement of a two-dimensional electron gas at the LaTiO(3)/SrTiO(3) interface by angle-resolved photoemission spectroscopy (ARPES). Thanks to an advanced sample preparation technique, the orbital character of the conduction electrons and the electronic correlations can be accessed qu…
The ligand exchange reaction between Au 38 (2-PET) 24 (2-PET: 2-phenylethanethiolate) clusters and enantiopure planar chiral [2.2]paracyclophane-4-thiol 1 (PCP-4-SH) was studied using high performance liquid chromatography (HPLC) and mass spectrometry. It is shown that even at the initial stage of the reaction at leas…
Nanogels have attracted much attention lately because of their many potential applications, including as nanocarriers for drug and gene delivery. Most nanogels reported previously, however, are not biodegradable, and their synthesis often requires the use of surfactants. Herein we report a surfactant-free method for t…
Metal-carbon covalence in (C5H5)2MCl2 (M = Ti, Zr, Hf) has been evaluated using carbon K-edge X-ray absorption spectroscopy (XAS) as well as ground-state and time-dependent hybrid density functional theory (DFT and TDDFT). Differences in orbital mixing were determined experimentally using transmission XAS of thin crys…
OBJECTIVE: Detonation nanodiamond monolayer coatings are exceptionally biocompatible substrates for in vitro cell culture. However, the ability of nanodiamond coatings of different origin, size, surface chemistry and morphology to promote neuronal adhesion, and the ability to pattern neurons with nanodiamonds have yet…
Magnetic order consistent with multiferroism has been observed in the acentric LiNbO${}_{3}$-type, high pressure form II of MnTiO${}_{3}$ using neutron diffraction and magnetization measurements. Spin order below the 28 K magnetic transition has propagation vector (0 0 0), and spins lie in the $ab$ plane. Representati…
Self‐assembly of small molecules can lead to many different types of objects and phases. This mini‐review concentrates on the formation of one‐dimensional objects and their transformation into gels from solutions/sols of 12‐hydroxystearic acid, a molecule derived from the castor bean, and its derivatives in a wide var…