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SILICA - Dissertations.se

While, Ni has a role in the dissociation the molecular hydrogen to form atomic hydrogen. Download : Download full-size image Mesostructured silica with a large pore (SBA-15-LP) functionalized with aminopropyl- groups (SBA-15-LP-NH 2), octyl- groups (SBA-15-LP-C8) and bifunctionalized with both organic ligands (SBA-15-LP-C8-NH 2) were prepared, characterized and tested for this purpose. 2017-06-05 · Sulfonated mesostructured silica-carbon nanocomposites with varying carbon content, acidic site density and porosity, obtained via the one-pot evaporation induced self-assembly (EISA) synthesis, were used here to convert sugars into useful chemicals and biofuel components in alcoholic solvent. Highly ordered mesoporous polymer−silica and carbon−silica nanocomposites with interpenetrating networks have been successfully synthesized by the evaporation-induced triconstituent co-assembly method, wherein soluble resol polymer is used as an organic precursor, prehydrolyzed TEOS is used as an inorganic precursor, and triblock copolymer F127 is used as a template. The formation of mesostructured silica was investigated using acidic conditions with tetraethoxysilane (TEOS) as the silica precursor and cetyltrimethylammonium bromide (CTAB) as the structure directing agent. A synthesis mixture of composition 2.2TEOS ∶ 1.1CTAB ∶ 75HCl ∶ 1000H2O gave a well ordered material Mesostructured silica particles (∼100 nm diameter with ∼2 nm pores) prepared by surfactant-templated sol–gel techniques are versatile supports that can be easily derivatized with active molecules to create multifunctional materials.

It is obtained by dealumination of a low-sodium, ultra-stable Y zeolite with a combined acid and thermal treatment. The resulting product contains over 99% silica, and has high crystallinity and surface area (over 800 m2/g). Faujasite-silica has very high thermal and acid stability. 1999-03-01 2010-08-17 2000-01-21 A versatile synthetic protocol is reported that allows high concentrations of functionally active membrane proteins to be incorporated in mesostructured silica materials. Judicious selections of solvent, surfactant, silica precursor species, and synthesis conditions enable membrane proteins to be st … 2017-01-01 Keywords Drug carrier Hybrid Curcumin Silica Mesostructured Topical application Highlights A novel mesostructured curcumin-containing hybrid carrier was successfully synthesized. The hybrid enhances curcumin solubility in pseudo-physiological conditions (e.g., artiﬁcial sweat). Curcumin release is governed by a degradation process of the silica matrix.

Artikel i vetenskaplig tidskrift, 2005.

Mesostructured silica based delivery system for a drug with a

Linear Formula SiO 2. Molecular Weight 60.08 . EC Number 231-545-4.

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The fabricated device is able to detect the human pulse (measured at … 2013-06-11 Mesoporous silica is a porous material with walls made of silica and pores in the size range of 2-50 nm. Since the silica most often is amorphous, the material lacks short range order but the pores may be arranged in different structures generating a long-range order.

Soft Matter 8 (10), Journal article. Photochromic mesostructured silica pigments dispersed in latex films. Authors/Editors. Information saknas. Research Areas. Information saknas. Search for dissertations about: "silica" · 1.
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2.5 nm) and crystalline Pt nanoparticles embedded into the walls of a mesostructured silica framework was found to be highly active in alkene hydrosilylation reaching TONs of ca.

Molecules that undergo large amplitude motion, when attached to the silica, can function as impellers and nanovalves when activated by light, electrical (redox) and chemical (pH, competitive binding) energy. Synthesis and Characterization of Mesostructured Cellular Foam (MCF) Silica Loaded with Nickel Nanoparticles as a Novel Catalyst. Materials Sciences and Applications 2013, 04 (01), 52-62.
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Sörensen, Malin Helena, 1979-. Mesostructured particulate silica materials with tunable pore size. : synthesis, characterization and applications / Malin Helena.

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Synthesis and Characterization of Supramolecular Colloids

Mesopor. Mater., 122 Mesostructured kolloidalt material finner utbredd tillämpning inom vetenskap och teknologi, som Funktionalisering av Silica Colloids. Formation of a new Ia(3)over-bard cubic meso-structured silica via triblock copolymer-assisted synthesis. Katarina Flodström, Viveka Alfredsson, Niklas Källrot Controlling adsorption of albumin with hyaluronan on silica surfaces and sulfonated latex particles. Swelling of a mesostructured zirconium oxide film.