SiO/sub 2/:Na
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
... methanol; Na, nicotinamide; NaD, nicotinamide adenine dinucleotide; Nag, N-acetylglutamate; Nas, N-acetyl glycoprotein signal; N-Mh, N-methylnicotinamide; NP, neopterin; o-hPa, ortho-hydroxyphenylacetate; Pa, ...
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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
... (n = 2 wells): control + PBS group, H/R + PBS group, and H/R + Se@SiO 2 group. HK-2 cells and renal tissue from the outer medulla area were lysed and denatured at 100 ° C for 5 minutes in SDS ...
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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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SiO<sub>2</sub> nanoparticle-induced impairment of mitochondrial energy metabolism in hepatocytes directly and through a Kupffer cell-mediated pathway in vitro
... SiO 2 nanoparticles and micrometer SiO 2 particles were purchased from Sigma Chemical Company (St Louis, MO, USA) at $99.0% purity. The average size of the particles was determined by ...
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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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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
... The amino-silane-coated magnetite particles were mixed with PEG diacid solution (molecular weight, 6,000) in the ratio of 1:2, followed by the addition of 5 mg of EDC ⋅ HCl to the solution. The solution was ...
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Porous Se@SiO<sub>2</sub> nanospheres treated paraquat-induced acute lung injury by resisting oxidative stress
... RLE-6TN cells and rat lung tissues were collected and lysed with radioimmunoprecipitation assay lysis buffer (Beyotime, Shanghai, China). The concentrations of pro- teins were detected by a bicinchoninic acid protein ...
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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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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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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
... Abstract: Poor toxicity characterization is one obstacle to the clinical deployment of Gd 2 O 3 @ SiO 2 core-shell nanoparticles (Gd-NPs) for use as magnetic resonance (MR) imaging contrast agents. ...
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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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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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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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Effect of Varying Ratio of Silicon Dioxide to Sodium Oxide on Geopolymer Concrete
... Abstract- Geopolymer concrete is product of reaction between Si and Al rich source material like fly ash, silica fume, rice husk ash with potassium or sodium based alkaline solutions. Geopolymers possess three ...
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Role of surface modification in zinc oxide nanoparticles and its toxicity assessment toward human dermal fibroblast cells
... thin SiO 2 /ZnO particles and - 41.5 mV from the thick SiO 2 /ZnO ...with SiO 2 showed a thin layer on the surface, with the finding that increasing the Si-to-Zn molar ratio ...
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Enhanced cellular uptake of aminosilane-coated superparamagnetic iron oxide nanoparticles in mammalian cell lines
... uptake efficiency of SPIO nanoparticles was dependent on the characteristics of cell lines themselves as well as the surface coating of nanoparticles. Among these two factors, the biological nature of cell lines may have ...
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Synthesis of Na<sub>2</sub>WO<sub>4</sub> Mn Supported YSZ as a Potential Anode Catalyst for Oxidative Coupling of Methane in SOFC Reactor
... Oxidative coupling of methane (OCM) to C2-hydrocarbons has attracted much attention during the past three decades as it is a potential route in utilizing methane, a major component of natural gas and a byproduct of oil ...
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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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