Materials Literature
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Mesoporous solid solutions of anatase-based titanium-vanadium oxides were synthesized from aqueous solutions. The V/Ti ratio was determined by the composition of the deposition solution, while the morphology and nanoscale porosity were controlled using micelles of the surfactants cetyltrimethylammonium bromide (CTAB),…
Large-quantity single-crystal SnO(2) nanowires coated with quantum-sized ZnO nanocrystals (nc-ZnO/SnO(2) nanowires) were directly synthesized by thermal evaporation of SnO powder and a mixture of basic ZnCO(3) and graphite powders. A common stainless steel mesh was used to collect the products. The microstructure and…
In this study the micronization of phenanthrene from toluene was studied using the gas antisolvent (GAS) recrystallization process. A systematic investigation of the influence of the key GAS process parameters, antisolvent addition rate (1, 20, 50, and 100 mL/min), temperature (25, 45, 55, and 65 °C), solute concentra…
In this work, we report the synthesis and characterization of a series of hexagonal nanostructured platinum/tin/tellurium inorganic/surfactant composites. The composites are formed through solution-phase self-assembly of SnTe4(4-) Zintl clusters, which are cross-linked with platinum salts in the presence of a cetyltri…
Physicochemical properties and compositions of KxH(3-x)PW12O40 salts, where 2 < or = x < or = 3, have been investigated. It has been found that freshly prepared K2HPW12O40 salt (drying at 313 K) contains particles of heteropolyacid and particles of the neutral potassium salt, the sample being in 78.6% amorphous. On ag…
The concept of reverse templating of an organogel to form imprinted porous divinylbenzene polymer films with submicrometer channels is demonstrated. The organogel comprising a 1:1 molar ratio of two organogelators, that is, bis(2-ethylhexyl) sodium sulfosuccinate and 4-chlorophenol, was formed in divinylbenzene. The g…
The extinction spectra of five silver equilateral triangle plates with a fixed thickness of 10 nm and side lengths of 50, 100, 150, 200 ,and 250 nm, respectively, have been simulated by the discrete dipole approximation (DDA) method in which a geometric object of interest is meshed and represented by a lattice of spat…
Abstract Different M–MCM-41 materials (M = Ti, V, Cr, Mn, Co, Ni, Zr, Cu, Nb, Ce, Sn, and Mo) were synthesised and characterized and the incorporation of metal ions on the silica surface also confirmed by FTIR analysis based on their ionic sizes.
Covalent attachment of poly(ethylene glycol) (PEG) molecules to drugs, proteins, and liposomes is a proven technology for improving their bioavailability, safety, and efficacy. Qualitative and quantitative analysis of PEG-derivatized molecules is important for both drug development and clinical applications. We previo…
Fluorescent nanocrystal−polymer composites were prepared from aqueous CdTe nanocrystals via two related routes. Route 1 was summarized as CFP (coating followed by polymerization), coating CdTe nanocrystals with polymerizable surfactant of octadecyl- p -vinylbenzyldimethylammonium chloride (OVDAC), followed by the copo…
ADVERTISEMENT RETURN TO ISSUEPREVCommunication to the...Communication to the EditorNEXTLayer-by-Layer Assembled Janus MicrocapsulesZhifeng Li, Daeyeon Lee, Michael F. Rubner, and Robert E. CohenView Author Information Department of Chemical Engineering and Department of Materials Science and Engineering and Center for…
l -Alaninium maleate (C 3 H 8 NO 2 + C 4 H 3 O 4 - ), a new organic nonlinear optical (NLO) material, is synthesized. Optical behavior such as UV−visible−NIR absorption spectra and second harmonic generation (SHG) were investigated to explore the NLO characteristics of the material for the first time. Thermal analysis…
BACKGROUND: We evaluated the effects of thermotherapy using magnetic nanoparticles, also referred to as magnetic fluid hyperthermia (MFH), combined with external radiation, in the Dunning model of prostate cancer. METHODS: Orthotopic tumors were induced in 96 male Copenhagen rats. Animals were randomly allocated to ei…
We investigate the stable structures of Fe-filled single-walled carbon nanotubes (SWNTs) on Ni(111), using density functional theory calculations. We find stable geometries and electronic states for the nanotube on Ni(111). We propose the possibility that the C-C bonds of carbon nanotube are broken by Fe wire and Ni s…
Thiourea has exhibited extremely rich dynamical behavior when being oxidized either through a chemical approach or via an electrochemical method. In this study, thermodynamic properties of thiourea and its oxides are investigated by measuring their thermogravimetry (TG), differential thermogravimetry (DTG), and differ…
Plastic flow behavior of low carbon steel has been studied at room temperature during tensile deformation by varying the initial strain rate of 3.3x10e-4 1/sec to the final strain rate ranging from 1.33x10e-3 1/sec to 2.0x10e-3 1/sec at a fixed engineering strain of 12%. Haasen plot revealed that the mobile dislocatio…
Two sets of amorphous carbon materials prepared at different routes are irradiated with swift (145 MeV) heavy ion (Ne6+). The structural parameters like the size of ordered grains along c and a axis i.e. Lc & La, the average spacing of the crystallographic planes (002) i.e. d002 and the fraction of the amorphous phase…
The unique properties of nanocomposites have seen them creating the next revolution in materials science. Their quantal properties as a result of their size have given them unique physical characteristics, previously not possible because of classical physical laws. There is now evidence that these may also extend into…
Recently, we reported the isothermal crystallization behaviors of poly( l -lactic acid) (PLLA) from the melt and glassy states, respectively [ J. Phys. Chem. B 2004, 108, 11514; Macromolecules 2004, 37, 6433]. Surprisingly, the quite different infrared (IR) spectral evolutions occur in the two crystallization processe…
Phase formation behaviors of double perovskite Sr 2 FeMoO 6 (SFMO) derived from mechanical activation were investigated. Polycrystalline double perovskite SFMO of grain sizes in nanometer range were synthesized by heat treatment of the precursors derived from mechanical activation of SrO, Fe 2 O 3 , and MoO 3 at tempe…