SiO/sub 2/ surface
Metathesis of Ethylene and Trans 2 Butene over MgO Admixed WO<sub>3</sub>/SiO<sub>2</sub> Catalysts
... and 2-butene to propylene is of a great interest for both academia and industry [1, ...high surface area inorganic oxides such as silica and alumina, the W-based catalysts receive much more attention for ...
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Effect of Alkaline and Alkaline Earth Metal Oxides Addition on the Glass Formation and Crystallization of ZnO Al<sub>2</sub>O<sub>3</sub> SiO<sub>2</sub> Glasses
... The appearances of as-casted samples are shown in Table 3 and 4. According to Table 3, only 20AZ3Li and 20AZ3Li6T became glasses among samples containing alkaline metal oxides, and the others crystallized and became ...
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Synthesis, Characterization and Gas Sensing Performance of PbMnO<sub>3</sub>, PbMnO<sub>3 </sub>: SiO<sub>2</sub> and PbMnO<sub>3 </sub>: Al<sub>2</sub>O<sub>3</sub>
... In recent years, there has been interest in perovskite type of metal oxides containing manganese. These materials show interesting magnetic and electric properties, such as magneto resistivity, nanoscale charge ordering ...
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Assessing the axonal translocation of CeO<sub>2</sub> and SiO<sub>2</sub> nanoparticles in the sciatic nerve fibers of the frog: an ex vivo electrophysiological study
... CeO 2 and SiO 2 NPs in the axons of the peripheral nerve, the NPs were diluted in saline and placed in the stimulating chamber, where the proximal end of the nerve was ...CeO 2 or SiO ...
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Cytokine induction of sol–gel-derived TiO<sub>2</sub> and SiO<sub>2</sub> coatings on metallic substrates after implantation to rat femur
... knee surface; the joint capsule was dissected, incised, and then the patella subluxated, exposing the femur intercondylar fossa (Figure ...of 2 mL/kg body ...
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In vitro and in vivo targeting imaging of pancreatic cancer using a Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub> nanoprobe modified with anti-mesothelin antibody
... In vitro targeting test was performed by adding fluorescent quantum dots to nanoprobes to observe the cellular adsorption. Results shown in Figure 4 suggest that the red fluorescent dots were more frequently found on the ...
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Immobilized transferrin Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub> nanoparticle with high doxorubicin loading for dual-targeted tumor drug delivery
... functional positions provided by PLGA for loading DOX onto DMP. Enhanced drug loading is due to the increased number of functional “arms” on the DMP surface. More functional arms could provide more functional ...
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Polyetherimide-grafted Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub> nanoparticles as theranostic agents for simultaneous VEGF siRNA delivery and magnetic resonance cell imaging
... the surface of Fe 3 O 4 @ SiO 2 nanoparticles, followed by electrostatic adsorption of VEGF .../SiO 2 /PEI/VEGF shRNA nano- composites exhibited negligible hemolysis against human ...
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Biological responses to core–shell-structured Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>-NH<sub>2</sub> nanoparticles in rats by a nuclear magnetic resonance-based metabonomic strategy
... As the use of core–shell-structured NPs increases, especially in biomedical fields, their biological response and hazard identification become more and more important. Because these NPs are usually intravenously ...
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Toxicity evaluation of Gd<sub>2</sub>O<sub>3</sub>@SiO<sub>2</sub> nanoparticles prepared by laser ablation in liquid as MRI contrast agents in vivo
... nm. The energy dispersive spectrometry results in Figure 1D and E show the atomic percentage of gadolinium and silicon in the core and the surface, respectively, indicating that the SiO 2 was ...
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Vancomycin-modified Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>@Ag microflowers as effective antimicrobial agents
... microflowers surface were bound with vancomycin via car- bodiimide activation to yield vancomycin-modified Fe 3 O 4 @ SiO 2 @Ag ...the surface structure of the Van/Fe 3 O 4 @SiO ...
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<p>Distribution of SiO<sub>2</sub> nanoparticles in 3D liver microtissues</p>
... microscopy. SiO 2 NPs applied after spheroid formation were mainly detected as NP agglomerates near the spheroid border, and SiO 2 NPs applied at cell seeding were observed as agglomerates ...
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Porous Se@SiO<sub>2</sub> nanospheres treated paraquat-induced acute lung injury by resisting oxidative stress
... Se@SiO 2 nanospheres was detected by an X-ray diffractometer (XRD) pattern (Figure ...Se@SiO 2 nanospheres showed a steady increase in the low angle ...the surface (Figure 1B). The ...
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Role of surface modification in zinc oxide nanoparticles and its toxicity assessment toward human dermal fibroblast cells
... The SiO 2 /ZnO NPs were produced using a sol-gel method of TEOS through hydrolysis and subsequent condensation in the presence of NH 4 OH to form a three-dimensional siloxane bond (Si–O–Si) by leaving an - ...
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SiO<sub>2</sub> nanoparticle-induced impairment of mitochondrial energy metabolism in hepatocytes directly and through a Kupffer cell-mediated pathway in vitro
... ROS were measured by flow cytometry using the oxidation-sensitive probe 2,7 ′ -dichlorofluorescein diacetate (DCFH-DA, Applygen). Briefly, 10 mM of DCFH-DA stock solution (in methanol) was diluted 4,000-fold in cell ...
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Detection of label-free cancer biomarkers using nickel nanoislands and quartz crystal microbalance
... the surface density of probe molecules grafted on the Ni nanoislands by injecting and incubating, at step 3, a 200 µ g/mL ...quartz 2), which confirms that the surface was not initially saturated ...
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Porous Se@SiO<sub>2</sub> nanospheres attenuate ischemia/reperfusion (I/R)-induced acute kidney injury (AKI) and inflammation by antioxidative stress
... involvement; 2, 10% to ,25% involvement; 3, 25% to ,50% involvement; and 4, 50% to ,75% involvement; and 5, ...positive; 2, 10%–20% positive; 3, 20%–30% positive; 4, 30%–40% positive; and 5, ...
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Corrosion Polarization Behavior of Al-SiO2 Composites in 1M and Related Microstructural Analysis
... Furthermore, Figures. 8(a) and 8(b) represent the surface microstructural profile for sample #5T. In Figure 8(a), the damage is observed even at 100× magnification (1000 µm in scale), but not as in Figure 8(b). ...
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-SiO 2 COMPOSITE USING SOL-GEL METHOD: EFFECT ON SIZE, SURFACE MORPHOLOGY AND THERMAL STABILITY
... hydrolysis of Titanium tetra isopropoxide with ethanol and water mixture as Titania source and Silicic acid as Silica source, a solid that can advantageously replace bulk titania samples as catalyst support. Comparison ...
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The role of surface pre-treatment on the microstructure, corrosion and fretting corrosion of cemented femoral stems
... It is hypothesised that the blasting processes reduces corrosion at the interface through a combination of different mechanisms. The increased interfacial strength at the interface, as demonstrated by Zhang [34], will ...
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