a-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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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
... aad, 2-aminoadipate; Tau, taurine; Tgl, trigonelline; Thr, threonine; TMaO, trimethylamine N-oxide; Trp, tryptophan; Tyr, tyrosine; Uc, urocanate; Val, valine; VlDl, very-low-density ...
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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 nanoparticles, followed by electrostatic adsorption of VEGF .../SiO 2 /PEI/VEGF shRNA nano- composites exhibited negligible hemolysis against human blood, and very low cytotoxicity ...
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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 ...Se@SiO 2 nanospheres ...
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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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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
... A-MFS can be used as negative contrast material. A-MFS has good stability of dispersion as shown in Figure S1. X-ray photoelectron spectroscopy detected that A-MFS contain Fe, O, C, N, and Si, so the result shows Si and ...
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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> nanocomposites protect the femoral head from methylprednisolone-induced osteonecrosis
... filtration with a cell strainer, the cartilage cells were collected and seeded on tissue culture dishes. All the cells were authen- ticated twice by morphologic and isoenzyme analyses dur- ing the study period. Cell ...
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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 group, H/R + PBS group, and H/R + Se@SiO 2 group (n = 3 ...Se@ SiO 2 group was pre-stimulated using porous Se@SiO 2 nano- spheres at a final concentration ...
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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>
... As mentioned above, mitochondrial dysfunction involved in various pathological conditions, providing a broad prospect for the clinical application of our nano- device. For instance, chronic obstructive pulmonary dis- ...
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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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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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Vancomycin-modified Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>@Ag microflowers as effective antimicrobial agents
... @ SiO 2 @Ag ...@SiO 2 @Ag microflowers (Figure 3B and ...@SiO 2 @Ag microflowers are surrounded by a thin membrane-like layer with ∼ ...@SiO 2 @Ag microflowers, we ...
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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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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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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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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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Surface modifications of silica nanoparticles are crucial for their inert versus proinflammatory and immunomodulatory properties
... ing SiO 2 NP instillation, SEM was ...with SiO 2 and SiO 2 PEG NPs showed morphological alterations of goblet cells, includ ing the perforation of cell membrane, indicating ...
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