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The role of the co-structure directing agent in the formation of

Photochromic mesostructured silica pigments dispersed in latex films (2005) Örtegren, Jonas. Spectroscopic investigations of spirooxazine and spiropyran Che, Mesostructured silica based delivery system for a drug with a peptide as a cell-penetrating vector, Micropor. 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.

Mesostructured silica

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. By deliberately placing active molecules in different regions of the mesostr 2009-07-15 · Mesostructured silica nanotubes have been synthesized in a system of carbon nanotubes/cetyltrimethylammonium bromide/tetraethyl orthosilicate/NH 3 ·H 2 O through one-pot hydrothermal route.

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A Hillerström, J van Stam, M Andersson. Green Chemistry 11 (5), 662-667, A pH–Responsive drug delivery system based on coordination bonding in a mesostructured surfactant/silica hybrid. J. Phys.

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It is obtained by dealumination of a low-sodium, ultra-stable Y zeolite with a combined acid and thermal treatment.
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Sörensen, Malin Helena, 1979-. Mesostructured particulate silica materials with tunable pore size.

2009-01-01 · Mesoporous silica materials are also useful supports for molecular machines. Machines including snap-tops and nanoimpellers that are designed to control the release of guest molecules trapped within the pores are described. Silica, mesostructured MSU-F (cellular foam) Synonym: Silica, Silicon dioxide CAS Number 7631-86-9. Linear Formula SiO 2.
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2019-04-24 Mesostructured silica SBA-15 materials with different structural parameters, such as pore size, pore volume, and wall thickness, etc., were prepared by varying the postsynthesis hydrothermal treatment temperature and adding inorganic salts. Mesostructured silica is a material consisting of a silica matrix with an organization in the meso range of 2-50 nm. The silica matrix is most often amorphous while the organization, induced by a structure directing agent, may generate a long-range mesoorder.

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SILICA - Dissertations.se

This is mainly due to their unique properties such as ordered pore structures, very high specific s John P Hanrahan, Tom F. O’Mahony, Joseph M Tobin, John J Hogan The first example of mesostructured silica and living cells used diacylphosphatidylcholine as the structure-directing agent and either yeast or bacterial cells. 67 The cell surfaces organized multilayered phospholipid vesicles that interfaced coherently with the silica host. The resulting structures maintained cell accessibility, addressability Unique physical properties such as high surface area and ordered pore structure make mesoporous silica useful for diverse applications extending from CO 2 sequestration to catalysis and heavy metal removal from waste streams.