Mesoporous silica
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Mesoporous Silica Nanoparticles Decorated with Carbosilane Dendrons as New Non viral Oligonucleotide Delivery Carriers
... on mesoporous silica nanoparticles covered with carbosilane dendrons grafted on their external surface is ...the silica matrix would make possible to allocate other therapeutic agents within the ...
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Electrospun Antimicrobial Films of Poly(3 hydroxybutyrate co 3 hydroxyvalerate) Containing Eugenol Essential Oil Encapsulated in Mesoporous Silica Nanoparticles
... It can be observed that the incorporation of MCM-41 with eugenol increased the mechanical strength of the PHBV films while the ductility was slightly reduced. This effect can be related to the reinforcing effect of ...
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Antioxidant activity of natural compounds supported on mesoporous Silica
... Mesoporous silica (SiO 2 ) was prepared according to Wang et al., (Wang, Ji, Yin, & Liu, 2016) with some modifications (Guntero, Ferretti, Mancini, & Kneeteman, 2018). The template Pluronic P123 (4 ...
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One pot synthesized functionalized mesoporous silica as a reversed phase sorbent for solid phase extraction of endocrine disrupting compounds in milks
... reversed-phase sorbent. The analytes were eluted with methanol and then submitted to HPLC with diode array detection. Under optimal conditions, the method quantification limit for the analytes ranged from 0.023 µg/mL to ...
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Polystyrene modified hybrid materials based on ordered mesoporous silica
... Organically-modified mesoporous silica materials have been prepared by direct co- condensation of styrylethyltrimethoxysilane (STETMOS) and tetraethylorthosilicate (TEOS) in one-pot ...the silica ...
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Aqueous heavy metals removal by adsorption on amine-functionalized mesoporous silica
... the silica surface, ...Amine-grafted silica materials were labeled G-SBA-15-N, G- SBA-15-NN, and G-SBA-15-NNN corresponding to organic chains containing one, two and three amino functional ...
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Ordered mesoporous silica functionalized with ß-cyclodextrin derivative for optical isomer separation of flavanones and flavanone glycosides by nano-liquid chromatography and capillary electrochromatography
... glucose units, respectively. CDs are cone-shaped and present a hydrophobic environment in the interior of the cavity while the outer surface remains hydrophilic. These properties make them complex agents of first ...
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Byphenyl Hydrazone SiO2 Composite: Synthesis and Evaluation of a New Chemosensor System for the Detection of Cu2+
... Mesoporous silica was prepared by using Pluronic P123 triblock copolymer surfactant as a template in acid media [6]. First, 4 g of Pluronic P123 was dissolved at room temperature in a 350 mL of 3.1 M ...
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Enhanced ultrafiltration PES membranes doped with mesostructured functionalized silica particles
... An increase of average particle size was observed as a result of functionalization of mesoporous silica SBA-15 particles with amine groups. This effect can be explained in terms of surface charge neutral- ...
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Immobilization strategies for laccase from Trametes versicolor on mesostructured silica materials and the application to the degradation of naphthalene
... amorphous silica, organic gels or kaolinite, and by different mechanisms, such as adsorption, entrapment or covalent attachment (see review by Durán et ...2007). Mesoporous silica materials are very ...
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Aplicación de materiales híbridos para la determinación electroquímica de metales pesados en aguas
... MTTZ-functionalized silica film generated by spin-coating in the presence of CTAB surfactant ...pure silica CTAB-based mesoporous silica films [44–46], indicating that introducing MTTZ groups ...
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Capillary condensation, freezing, and melting in silica nanopores: A sorption isotherm and scanning calorimetry study on nitrogen in mesoporous SBA 15
... Condensation, melting, and freezing of nitrogen in a powder of mesoporous silica grains (SBA-15) has been studied by combined volumetric sorption isotherm and scanning calorimetry measurements. Within the ...
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Sulfonated polystyrene-modified mesoporous organosilicas for acid-catalyzed processes
... polystyrene-based silica materials, which allows an efficient conversion of oleic acid promoted by a fluid diffusion of reactants and ...acid-modified mesoporous silica ...
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Synthesis and encapsulation of bis-eugenol in a mesoporous solid material: Enhancement of the antioxidant activity of a natural compound from Clove Oil.
... the mesoporous silica was carried out by a microwave assisted ...Previously, mesoporous silica SBA-15 was prepared by hydrothermal synthesis using Pluronic P123 triblock copolymer as a ...
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MULTYLAYER ABSORBERS OF SILICA AEROGEL
... Silica aerogels also exist in a granular form, with granulometry going from millimetres to a few tens of micrometers. They are characterised by a macro-porosity which is different from the monolithic form. Also in ...
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Rheological and mechanical properties of self-compacting concrete with the addition of nano-silica and microsilica
... concrete, silica fume is used, and more recently, nanomaterials with nano-silica as well; mainly, ...nano-silica, silica fume and binary mixtures of both, which satisfy the demands for high ...
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Enhancement of Peroxidase Stability Against Oxidative Self Inactivation by Co immobilization with a Redox Active Protein in Mesoporous Silicon and Silica Microparticles
... biogenic silica microparticles are shown in ...biogenic silica, the increase in C and O content as well as appearance of N peaks confirms the immobilization of ...
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Current development and applications of ordered mesoporous silicas and other sol-gel silica-based materials in food sample preparation for xenobiotics analysis
... 12 procedure, since the overall particle size for the different sorbents can be very different, what imposes many influences, such as, mass diffusion and a drop in pressure of the extraction device. Moreover, the sample ...
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Optical density and photonic efficiency of silica-supported TiO2 photocatalysts
... photocatalytic degradation of DCA has been studied extensively evincing that a single electron/hole pair suffices for its complete oxidation. The influence of different variables such as titania loading, type of ...
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Catalytic cracking of HDPE over hybrid zeolitic-mesoporous materials
... In recent years, several authors have reported the synthesis of a new class of porous materials which are supposed to combine the properties of both zeolites and ordered mesoporous aluminosilicates [11-13]. These ...
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