Si:Ar-SiO/sub 2/
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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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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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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Heterointerface dipoles: Applications to (a) Si-SiO2, (b) nitrided Si-N-SiO2, and (c) SiC-SiO2 interfaces
... electrodes. 2–4 The first two improve- ments are associated with interface nitridation at the mono- layer level, 2,3 whereas the third is optimized by plasma- assisted top surface nitridation, 3 or the use of ...
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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
... (TiO 2 ) and silica (SiO 2 ) coatings prepared by sol–gel ...TiO 2 or SiO 2 coatings reduced significantly the production of proinflammatory cytokines by local tissues, ...
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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 , which allows high efficient loading of VEGF small hairpin (sh)RNA to form Fe 3 O 4 @SiO 2 /PEI/VEGF shRNA nanocomposites for VEGF gene silencing as well as magnetic resonance (MR) ...
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Low-temperature preparation of GaN-SiO2 interfaces with low defect density. I. Two-step remote plasma-assisted oxidation-deposition process
... When SiO 2 thin films were deposited on Si, Ge, GaAs, and CdTe using remote plasma-enhanced chemical vapor deposition ( RPECVD ) , the substrates were slightly consumed by plasma-activated species ...
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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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<p>Distribution of SiO<sub>2</sub> nanoparticles in 3D liver microtissues</p>
... times (day 1, 2, 4, and 7) after cell seeding (Figure 2). Already at day 1 HepG2 spheroids with irregular shape were observed. At later times (day 4 and 7), the cell spheroids exhibited a round and more ...
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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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Porous Se@SiO<sub>2</sub> nanospheres treated paraquat-induced acute lung injury by resisting oxidative stress
... Se@SiO 2 nanospheres could alleviate oxidative stress and inflammation in PQ-induced ...Se@SiO 2 (n=18). The PQ and PQ + Se@SiO 2 groups were randomly and evenly ...
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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
... Frogs (Rana ridibunda) of either sex and of the same age (ranging from 12 to 15 months), weighing 40–60 g, were used. The frogs were euthanatized (decapitated and pithed), and the sciatic nerves were dissected from the ...
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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
... IONP-induced changes in cell size and structure were further investigated using forward and side scattering pro- files obtained with flow cytometry analysis (Figure 4). Cell size and structure remained unchanged after ...
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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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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 ...
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Interfacial strain-induced self-organization in semiconductor dielectric gate stacks. I. Strain relief at the Si-SiO2 interface
... the Si substrate, and second, their number can be reduced by more than a factor of 50 by a postmetallization anneal 共 PMA 兲 in a hydrogen-containing ...the Si forbidden band gap that are revealed by ...
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Preparation and evaluation of SiO<sub>2</sub>-deposited stearic acid-g-chitosan nanoparticles for doxorubicin delivery
... Figure 3A shows TEM images of CS-SA/DOX and CS-SA/SiO 2 /DOX nanoparticles. In contrast with CS-SA/ DOX, dark rings around the nanoparticles could be observed on all CS-SA/SiO 2 /DOX ...
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Multiple Layers of Silicon-Silica (Si-SiO2) Pair onto Silicon Substrate towards Highly Efficient, Wideband Silicon Photonic Grating Coupler
... to the devices produced by a standard CMOS fabrication platform in electronic industry [2, 3]. One of the key challenges with these submicronic waveguide devices is enabling efficient coupling with fiber, which is ...
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Porous Se@SiO<sub>2</sub> nanocomposites protect the femoral head from methylprednisolone-induced osteonecrosis
... Se@SiO 2 nanocom- posites induced SOD and GSH indirectly to reduce ROS ...Se@SiO 2 did not affect the reduced wet-to-dry weight ratio of MPS. Se@SiO 2 also did not impair the ...
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(HMDI). For the PU/SiO 2
... The infrared spectra of pristine corn oil-based PU are shown in Figure 2. The characteristic peak at 2900 cm -1 is within the C-H stretch region and at around 3400 cm -1 corresponds to a secondary amine group. ...
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