Articles you may be interested in Atomic state and characterization of nitrogen at the SiC/SiO2 interface Phosphorous and nitrogen are electrically active species at the SiO 2 /SiC interface in SiC MOSFETs. We compare the concentration, chemical bonding, and etching behavior of P and N at the SiO 2 /SiC(0001) interface using photoemission, ion scattering, and secondary ion mass spectrometry. Bo...

The cytotoxicity of 15-nm and 46-nm silica nanoparticles was investigated by using crystalline silica (Min-U-Sil 5) as a positive control in cultured human bronchoalveolar carcinoma-derived cells. Exposure to 15-nm or 46-nm SiO(2) nanoparticles for 48 h at dosage levels between 10 and 100 microg/ml decreased cell viability in a dose-dependent manner. Both SiO(2) nanoparticles were more cytotoxi...

We report high angular resolution IRAM Plateau de Bure interferometric observations of the SiO v = 0 J = 2→1 and J = 5 → 4 transitions in the southern lobe of the young L 1157 molecular outflow. The resolution of these observations (∼ 2.5′′) makes them directly comparable to available highresolution CO maps of the flow. The known precession of the L 1157 flow is fully confirmed. We find a remar...

Oxidative degradation characteristics of silica-supported amine sorbents with varying amounts of tetraethylenepentamine (TEPA) and polyethylene glycol (PEG; P(200) or P(600) represents PEG with molecular weights of 200 or 600) have been studied by IR and NMR spectroscopy. Thermal treatment of the sorbents and liquid TEPA at 100 °C for 12 h changed their color from white to yellow. The CO(2) cap...

Sustainable photochemical NADH regeneration and redox-enzymatic synthesis are accomplished by using CdS nanocrystals grown on the surface of SiO(2) beads. CdS nanocrystals grown on SiO(2) beads worked efficiently as a visible-light absorbing photocatalyst for in situ NADH regeneration with high catalytic activity and minimal loss of activity despite repeated uses.

A method is presented to prepare nanocrystalline alpha-Zn(2)SiO(4) with the smallest crystal size reported so far for this system. Our approach combines the advantages of organometallic single-source precursor routes with aerosol processing techniques. The chemical design of the precursor enables the preferential formation of pure zinc silicates. Since gas-phase synthesis reduces intermolecular...

An ultrasensitive and renewable electrochemiluminescence (ECL) immunosensor was developed for the detection of tumor markers by combining a newly designed trace tag and streptavidin-coated magnetic particles (SCMPs). The trace tag (RuL@SiO(2)-Au~RuL-Ab2) was prepared by loading Ru(bpy)(3)(2+)(RuL)-conjuged secondary antibodies (RuL-Ab2) on RuL@SiO(2) (RuL-doped SiO(2)) doped Au (RuL@SiO(2)-Au)....

UNLABELLED The study was carried out to understand the effect of silver-silica nanocomposite (Ag-SiO(2) NC) on the cell wall integrity, metabolism and genetic stability of Pseudomonas aeruginosa, a multiple drug-resistant bacterium. Bacterial sensitivity towards antibiotics and Ag-SiO(2) NC was studied using standard disc diffusion and death rate assay, respectively. The effect of Ag-SiO(2) NC ...

In this study the effect of nano sized silica particles (nano-SiO2) on the physical and mechanical properties of rice husk and Old Corrugated Container (OCC)-cement boards was investigated. Modulus Of Rupture (MOR), Modulus Of Elasticity (MOE), Internal Bonding Strength (IB), density, water absorption and thickness swelling after 24 hours immersion in water and hardness were meas...

The compound {Fe(2)(CO)(6)[µ-S(2)C(6)H(2)(OH)(2)]} is organized by H-bond interactions on graphite and SiO(2) surfaces as micron-length nanofibres. Thermal degradation of these fibres adsorbed on SiO(2) leads to a very homogeneous surface filled with Fe(2)O(3) nanoparticles (ca. 2.5 nm diameter) suitable to produce few-walled carbon nanotubes laying on a clean surface.