About: Fabrication and characterisation of hollow composite iron oxide/silica microparticles with porous shell

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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	Our aim is to prepare hollow composite iron oxide/silica microparticles in the size range tens of micrometers. Microparticles had porous silica (SiO2) shells in which were dispersed nanoparticles of superparamagnetic iron oxide (Fe2O3/Fe3O4). Such prepared microparticles can be applied for targeted delivery systems for field of applications as cleaning substances. We prepared the composite microparticles via soft shell templating route. As a silica source is used tetraethyl orthosilicate and as the templates the droplets of octylamine. The method has good reproducibility, is fast and very simple. The resulting particles were studied and characterized in size, shape and ability to heat up. We have shown that particle size can be systametically varied in the range of 20-100 ?m and that composite microparticles were able to heat up in the presence of an external magnetic field in the radiofrequency range (400 kHz). Our results show that the fabrication of composite iron oxide/silica microparticles is simple, fast and is not required to synthesize the iron oxide nanoparticles in situ. Our aim is to prepare hollow composite iron oxide/silica microparticles in the size range tens of micrometers. Microparticles had porous silica (SiO2) shells in which were dispersed nanoparticles of superparamagnetic iron oxide (Fe2O3/Fe3O4). Such prepared microparticles can be applied for targeted delivery systems for field of applications as cleaning substances. We prepared the composite microparticles via soft shell templating route. As a silica source is used tetraethyl orthosilicate and as the templates the droplets of octylamine. The method has good reproducibility, is fast and very simple. The resulting particles were studied and characterized in size, shape and ability to heat up. We have shown that particle size can be systametically varied in the range of 20-100 ?m and that composite microparticles were able to heat up in the presence of an external magnetic field in the radiofrequency range (400 kHz). Our results show that the fabrication of composite iron oxide/silica microparticles is simple, fast and is not required to synthesize the iron oxide nanoparticles in situ. (en)
Title	Fabrication and characterisation of hollow composite iron oxide/silica microparticles with porous shell Fabrication and characterisation of hollow composite iron oxide/silica microparticles with porous shell (en)
skos:prefLabel	Fabrication and characterisation of hollow composite iron oxide/silica microparticles with porous shell Fabrication and characterisation of hollow composite iron oxide/silica microparticles with porous shell (en)
skos:notation	RIV/60461373:22340/11:43892122!RIV12-MSM-22340___
http://linked.open...avai/riv/aktivita	P S
http://linked.open...avai/riv/aktivity	P(GD104/08/H055), S
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Štěpánek, František Kremláčková, Zuzana Kovačík, Pavel
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
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	199153
http://linked.open...ai/riv/idVysledku	RIV/60461373:22340/11:43892122
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	iron oxide; silica; hollow; composite; Microparticles (en)
http://linked.open.../riv/klicoveSlovo	composite iron oxide Microparticles hollow silica
http://linked.open...ontrolniKodProRIV	[6AF77DA4C507]
http://linked.open...v/mistoKonaniAkce	Roztoky u Křivoklátu
http://linked.open...i/riv/mistoVydani	Praha
http://linked.open...i/riv/nazevZdroje	Workshop Reakční a transportní jevy V
http://linked.open...in/vavai/riv/obor	CI
http://linked.open...ichTvurcuVysledku	3 (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	2011
http://linked.open...iv/tvurceVysledku	Štěpánek, František Kovačík, Pavel Kremláčková, Zuzana
http://linked.open...vavai/riv/typAkce	CST - Celostátní
http://linked.open.../riv/zahajeniAkce	2011-06-08 (xsd:date)
number of pages	7 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Vysoká škola chemicko-technologická v Praze
https://schema.org/isbn	978-80-7080-797-2
http://localhost/t...ganizacniJednotka	22340

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