SiO/sub 2/-SiO/sub 2/
Metathesis of Ethylene and Trans 2 Butene over MgO Admixed WO<sub>3</sub>/SiO<sub>2</sub> Catalysts
... Due to the highly demanded propylene in the market, the cross metathesis of ethylene and 2-butene to propylene is of a great interest for both academia and industry [1, 2]. Among the most successful ...
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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 markedly alleviated PQ-induced oxidative stress and ...Se@SiO 2 nanosphere treatment. These data indicate that porous Se@SiO 2 nanospheres may reduce NF-κB, ...
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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
... @SiO 2 and Fe 3 O 4 @SiO 2 /PEI ...@SiO 2 and Fe 3 O 4 @SiO 2 /PEI were attracted toward the magnet within a very short period of time (Figure 5, ...
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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
... @SiO 2 modified with anti-mesothelin antibody (A-MFS) was prepared to target cells and tumor tissues highly expressing mesothelin in vitro (human pancreatic cancer cell line SW1990) and in vivo ...
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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
... was applied to investigate the metabolic consequences in rats following the intravenous adminis- tration of parent NPs of core–shell-structured nanoparticles, Fe 3 O 4 @SiO 2 -NH 2 (Fe@Si) NPs. ...
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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
... core; 2) Tf-receptor-targeting, by the Tf ligand on the outer layer; and 3) high drug loading efficiency (achieved using a modified multi-armed coupling reagent, PLGA), controllable by altering reactant ...
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Preparation and evaluation of SiO<sub>2</sub>-deposited stearic acid-g-chitosan nanoparticles for doxorubicin delivery
... CS-SA/SiO 2 / DOX-4, CS-SA/SiO 2 /DOX-8, CS-SA/SiO 2 /DOX-16 nanoparticles against A549 cells measured using the MTT assay were ...CS-SA/SiO 2 /DOX nanoparticles ...
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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
... Se@ SiO 2 had significantly lower H&E scores for tubular dam- age after I/R ...Se@SiO 2 group exhibited less cellular apoptosis ...
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Synthesis, characterization, and immune efficacy of layered double hydroxide@SiO<sub>2</sub> nanoparticles with shell-core structure as a delivery carrier for Newcastle disease virus DNA vaccine
... LDH@SiO 2 -NPs with shell-core structures were developed to encapsulate the F gene of NDV into a eukaryotic expression plasmid pVAX1-F(o) by a coprecipitation method for enhancing the efficacy of a DNA ...
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<p>Mitochondria-Modulating Porous Se@SiO<sub>2</sub> Nanoparticles Provide Resistance to Oxidative Injury in Airway Epithelial Cells: Implications for Acute Lung Injury</p>
... validated its mitochondrial-protecting effects in the present study. Meanwhile, we found that these NPs were able to enter the cytoplasm and accumulated near the mitochondria. However, we scarcely observed them inside ...
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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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Vancomycin-modified Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>@Ag microflowers as effective antimicrobial agents
... @SiO 2 @Ag microflower with enhanced antibacterial activity is experimentally and theoretically presented in this ...@SiO 2 @Ag microflowers can rapidly and effectively kill both ...
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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
... Notes: (A) cell viability of l929 cells incubated with different concentrations (10 µM, 1 µM, and 100 nM) of the gd-NPs for 24 and 48 hours. (B) apoptosis rates of Raw264.7 cells were measured by flow cytometry at 48 ...
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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
... As an indication of the proper physiological function of the nerve fibers of the isolated sciatic nerve, samples of the evoked CAP were digitized and stored in a computer every 30 minutes throughout the experiment, ...
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<p>Distribution of SiO<sub>2</sub> nanoparticles in 3D liver microtissues</p>
... formation, SiO 2 NPs were found up to 20 µ m from the border inside the spheroid occurring as single particles and particle agglomerates (Figure ...6A). SiO 2 NPs appeared internalized as well ...
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In vitro toxicity of Fe<sub>m</sub>O<sub>n</sub>, Fe<sub>m</sub>O<sub>n</sub>-SiO<sub>2</sub> composite, and SiO<sub>2</sub>-Fe<sub>m</sub>O<sub>n</sub> core-shell magnetic nanoparticles
... All chemicals were purchased from Sigma-Aldrich (St Louis, MO, USA). Bare IONPs were synthesized by coprecipitation of ferrous and ferric iron ion solutions. Briefly, the mixture of 25% NH 4 OH and 1% ammonium acetate ...
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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
... Surgical procedures were carried out under general anes- thesia in aseptic conditions. To anesthetize the animals, a mixture of 1 mL ketamine hydrochloride (100 mg/mL) and 0.5 mL xylazine hydrochloride (20 mg/mL) added ...
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Porous Se@SiO<sub>2</sub> nanocomposites protect the femoral head from methylprednisolone-induced osteonecrosis
... Se@SiO 2 nanocomposites. Then, the solid Se@SiO 2 nanocomposites were coated with PVP and etched in hot water to construct porous ...Se@SiO 2 nano- composites were characterized ...
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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>
... thoroughly mixing its fine powder with 30 wt % organic binder (ethyl cellulose), 30 wt % solvent (2- butoxyethanol and terpineol) and 15 ml dispersant. The films were prepared on glass substrate by using screen ...
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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
... wide [16]. It is true that the mobility of network-modifying cation controls the composition and structure of nucleating phases which implies that viscosity controlled by network formers is not an important parameter for ...
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