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porous silica

Porous silica obtained from biodegradable and biocompatible inorganic-organic hybrid materials

Porous silica obtained from biodegradable and biocompatible inorganic-organic hybrid materials

... Keywords: porous silica, inorganic-organic hybrid, pyrolysis, texture characterization ...Introduction Porous materials, such as silica [1-3], are emerging as a new area of great technological ...

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Submicron gap reduction of micro-resonator based on porous silica ridge waveguides manufactured by standard photolithographic process

Submicron gap reduction of micro-resonator based on porous silica ridge waveguides manufactured by standard photolithographic process

... The method demonstrated in this paper allows to use lower coupling distances and so to miniaturize further PS ridge waveguides MRs. To do so, the fabrication process takes advantage of the volume expansion of silicon ...

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Cu2+-labeled, SPION loaded porous silica nonparticles for cell labeling and multifunctional imaging probes

Cu2+-labeled, SPION loaded porous silica nonparticles for cell labeling and multifunctional imaging probes

... porous silica shell to impart biocompatibility and modified the surface of these nanoparticles with a ligand capable of coordinating with metal ions of interest for PET imaging, namely 64 Cu and 111 In ...

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Phase transitions of adsorbates. V. Aqueous sodium chloride solutions adsorbed of porous silica glass

Phase transitions of adsorbates. V. Aqueous sodium chloride solutions adsorbed of porous silica glass

... .\clsorption isotherms for \vater on porous silica glass containing various anno~unls of NaCI, determined a t room temperature, can be superimposed if salt evclusion in the fi[r] ...

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Carbon dioxide gas hydrate crystallization in porous silica gel particles partially saturated with a surfactant solution

Carbon dioxide gas hydrate crystallization in porous silica gel particles partially saturated with a surfactant solution

... in porous silica gel partially saturated with pure water or with a surfactant ...used silica particles of different nominal pore diameters (30 and 100 nm), saturated at 80% pore volume with pure ...

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Racetrack micro-resonators based on ridge waveguides made of porous silica

Racetrack micro-resonators based on ridge waveguides made of porous silica

... For this case, the range of gap studied here allows us to reach a wide scale of coupling ratios that should be sufficient to obtain good MR transmission spectra. In Fig. 5, the top view (a) and the cross section (b) of ...

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In situ loading of basic fibroblast growth factor within porous silica nanoparticles for a prolonged release

In situ loading of basic fibroblast growth factor within porous silica nanoparticles for a prolonged release

... water droplets in oil phase can be controlled by adjusting the ratio of water and cyclohexane. Moreover, the bound- ary between the water droplets and the oil phase is tailored by adjusting the concentrations of ...

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Study of CuO–CeO2 catalysts supported on ordered porous silica with different mesostructure and morphology. Influence on CO preferential oxidation

Study of CuO–CeO2 catalysts supported on ordered porous silica with different mesostructure and morphology. Influence on CO preferential oxidation

... the porous structure and the presence of oxides ...unidirectional porous structure SBA-15 with fiber shape and incipient wetness impregnation achieved the highest conversion of CO and selectivity to CO 2 ...

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Ion-specific adsorption and electroosmosis in charged amorphous porous silica

Ion-specific adsorption and electroosmosis in charged amorphous porous silica

... KCl 4 CsCl. This ordering is explained on the basis of the sizes and valencies of the cations. A larger ion charge density and localization of charges give rise to stronger correlations, which can lead to overscreening. ...

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Rhodium colloidal suspension deposition on porous silica particles by dry impregnation: Study of the influence of the reaction conditions on nanoparticles location and dispersion and catalytic reactivity

Rhodium colloidal suspension deposition on porous silica particles by dry impregnation: Study of the influence of the reaction conditions on nanoparticles location and dispersion and catalytic reactivity

... the porous supports, prepared by sol–gel process, disag- gregate in solution under stirring) and dependence of the deposit location on the physico-chemical properties of the solution-support ...

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Volume instability of porous solids: part 2: dissolution of porous silica glass in sodium hydroxide

Volume instability of porous solids: part 2: dissolution of porous silica glass in sodium hydroxide

... Length changes of 1 mm thick specimens in NaOH solutions of various concentrations are shown in Fig. In general, the overall expansions of speci- mens compared at equ[r] ...

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From diatoms to silica-based biohybrids

From diatoms to silica-based biohybrids

... Whole cell encapsulation also finds applications for medicine. Blood tests for the detection of antibodies have been performed using sol–gel immobilized parasite cells. First experiments have been performed via the ...

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Drying of Porous Media

Drying of Porous Media

... of porous media is part of our daily experience, yet this common process is central to many environmental and engineering applications ranging from soil evaporation affecting hydrological water balance and ...

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Photophysical properties of dye-doped silica nanoparticles bearing different types of dye-silica interactions

Photophysical properties of dye-doped silica nanoparticles bearing different types of dye-silica interactions

... Dye-doped silica particles of different sizes, colors, and architectures have previously been synthesized through either an aqueous Sto¨ber method or a reverse microemulsion ...dye-doped silica particles ...

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Transport in Porous Media

Transport in Porous Media

... to the repository administrator: tech-oatao@listes-diff.inp-toulouse.fr This presentation is published in : http://oatao.univ-toulouse.fr/20693 To cite this version: Quintard, Michel. Transport in Porous Media. ...

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Transfers in Porous Media

Transfers in Porous Media

... [27] Davit, Y., Quintard, M., and Debenest, G., “Equivalence between volume averaging and moments matching techniques for mass transport models in porous media,” International Journal of[r] ...

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Dependence of the durability of mortars on sand/cement ratio and micro-silica (silica fume) addition

Dependence of the durability of mortars on sand/cement ratio and micro-silica (silica fume) addition

... Histograms comparing number of freeze-thaw cycles producing 0.1% residual expansion for mortars containing 0% and 10% silica fume.. that the specimens had undergone the ind[r] ...

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Permeability of porous liquids

Permeability of porous liquids

... a porous liquid. Porous liquids were discovered in 2014 by the Oak Ridge ...of silica, that present the particularity to become liquid when grafted with ionic ...processes, porous liquids ...

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Perfectly plastic flow in silica glass

Perfectly plastic flow in silica glass

... compress silica pillars to large strains while directly monitoring radial ...that silica predominantly experiences plastic shear flow but that there is no shear- induced ...

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FNA fluorescence reporting within silica-zirconia porous thin films

FNA fluorescence reporting within silica-zirconia porous thin films

... Porous materials, when adequately tailored, offer the possibility to entrap various biomolecules without altering their conformation or function. The sol-gel process enables the formation of porous glasses ...

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