About: Investigation of radiofrequency induced release kinetics from magnetic hollow silica microspheres

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Composite hollow silica microspheres containing embedded iron oxide nanoparticles for radiofrequency heating have been synthesised by a soft templating route. The influence of nanoparticle concentration on the microspheres size distribution, shell thickness, and heating rate was investigated. The structure of the hollow microspheres was characterised by SEM, confocal microscopy and BET analysis, and the temperature-dependence of release kinetics of a model substance (vitamin B12) from the microspheres was measured by time-resolved UV/Vis spectrophotometry. A mathematical model of the release process, based on simultaneous diffusion and adsorption/desorption of the solute in the mesoporous shell, has been developed and used to evaluate the dependence of the effective diffusivity in the mesoporous silica shell on temperature and preparation conditions. Composite hollow silica microspheres containing embedded iron oxide nanoparticles for radiofrequency heating have been synthesised by a soft templating route. The influence of nanoparticle concentration on the microspheres size distribution, shell thickness, and heating rate was investigated. The structure of the hollow microspheres was characterised by SEM, confocal microscopy and BET analysis, and the temperature-dependence of release kinetics of a model substance (vitamin B12) from the microspheres was measured by time-resolved UV/Vis spectrophotometry. A mathematical model of the release process, based on simultaneous diffusion and adsorption/desorption of the solute in the mesoporous shell, has been developed and used to evaluate the dependence of the effective diffusivity in the mesoporous silica shell on temperature and preparation conditions. (en)
Title	Investigation of radiofrequency induced release kinetics from magnetic hollow silica microspheres Investigation of radiofrequency induced release kinetics from magnetic hollow silica microspheres (en)
skos:prefLabel	Investigation of radiofrequency induced release kinetics from magnetic hollow silica microspheres Investigation of radiofrequency induced release kinetics from magnetic hollow silica microspheres (en)
skos:notation	RIV/60461373:22340/12:43893583!RIV13-GA0-22340___
http://linked.open...avai/predkladatel	Fakulta chemicko-inženýrská
http://linked.open...avai/riv/aktivita	P S
http://linked.open...avai/riv/aktivity	P(GD104/08/H055), S
http://linked.open...iv/cisloPeriodika	neuveden
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Štěpánek, František Kovačík, Pavel
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola chemicko-technologická v Praze / Fakulta chemicko-inženýrská
http://linked.open...dnocenehoVysledku	142921
http://linked.open...ai/riv/idVysledku	RIV/60461373:22340/12:43893583
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Silica; Radiofrequency heating; Hollow microspheres; Diffusion; Controlled release (en)
http://linked.open.../riv/klicoveSlovo	Controlled release Hollow microspheres Radiofrequency heating Diffusion Silica
http://linked.open...odStatuVydavatele	BE - Belgické království
http://linked.open...ontrolniKodProRIV	[66E73A0ED827]
http://linked.open...i/riv/nazevZdroje	Microporous and mesoporous materials
http://linked.open...in/vavai/riv/obor	CI
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Transport and reaction processes in complex multiphase systems
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	159
http://linked.open...iv/tvurceVysledku	Štěpánek, František Kovačík, Pavel Kremláčková, Zuzana
http://linked.open...ain/vavai/riv/wos	000305917700018
issn	1387-1811
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.micromeso.2012.04.019
http://localhost/t...ganizacniJednotka	22340
is http://linked.open...avai/riv/vysledek of	Investigation of radiofrequency induced release kinetics from magnetic hollow silica microspheres

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