About: Thermo-responsive adhesion properties of composite hydrogel microcapsules

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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	The present work describes the synthesis and characterisation of thermo-responsive microcapsules consisting of poly-N-isopropylacrylamide (PNIPAM) hydrogel, hydrophilic citrate-stabilized superparamagnetic iron oxide nanoparticles (SPIONs) that perform the function of a local heat source and hydrophobic nanoparticles (either SiO(2) or oleic acid-coated SPIONs) that stabilize the microcapsule surface. The microcapsules have been synthesized by the inverse Pickering emulsion polymerisation method. The effect of iron oxide concentration in the hydrogel on the shape, size, shrinkage ratio and heating rate of the microcapsules has been systematically investigated. The adhesion properties of the composite microcapsules towards a range of substrates have been characterised in a microfluidic flow cell and it was found that the temperature-induced change of the microcapsule size is an effective way of controlling adhesion. The induction heating of the embedded SPIONs makes it possible to control adhesion remotely in environments where macroscopic heating is not possible. The present work describes the synthesis and characterisation of thermo-responsive microcapsules consisting of poly-N-isopropylacrylamide (PNIPAM) hydrogel, hydrophilic citrate-stabilized superparamagnetic iron oxide nanoparticles (SPIONs) that perform the function of a local heat source and hydrophobic nanoparticles (either SiO(2) or oleic acid-coated SPIONs) that stabilize the microcapsule surface. The microcapsules have been synthesized by the inverse Pickering emulsion polymerisation method. The effect of iron oxide concentration in the hydrogel on the shape, size, shrinkage ratio and heating rate of the microcapsules has been systematically investigated. The adhesion properties of the composite microcapsules towards a range of substrates have been characterised in a microfluidic flow cell and it was found that the temperature-induced change of the microcapsule size is an effective way of controlling adhesion. The induction heating of the embedded SPIONs makes it possible to control adhesion remotely in environments where macroscopic heating is not possible. (en)
Title	Thermo-responsive adhesion properties of composite hydrogel microcapsules Thermo-responsive adhesion properties of composite hydrogel microcapsules (en)
skos:prefLabel	Thermo-responsive adhesion properties of composite hydrogel microcapsules Thermo-responsive adhesion properties of composite hydrogel microcapsules (en)
skos:notation	RIV/60461373:22330/12:43893587!RIV13-GA0-22330___
http://linked.open...avai/riv/aktivita	P S
http://linked.open...avai/riv/aktivity	P(GD104/08/H055), P(MEB061108), S
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Ulbrich, 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 potravinářské a biochemické technologie
http://linked.open...dnocenehoVysledku	174336
http://linked.open...ai/riv/idVysledku	RIV/60461373:22330/12:43893587
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	SIZE; SHAPE; FORCE; SURFACE; CARRIERS; MICROGELS; PARTICLES; NANOPARTICLES; DRUG (en)
http://linked.open.../riv/klicoveSlovo	CARRIERS DRUG MICROGELS SIZE PARTICLES SHAPE SURFACE FORCE NANOPARTICLES
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[8848C5A6E309]
http://linked.open...i/riv/nazevZdroje	SOFT MATTER
http://linked.open...in/vavai/riv/obor	CI
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Transport and reaction processes in complex multiphase systems Development of chitosan based biomedical polymers with antibacterial properties
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	8
http://linked.open...iv/tvurceVysledku	Pittermannová, Anna Tokárová, Viola Štěpánek, František Čech, Jiří Ulbrich, Pavel
http://linked.open...ain/vavai/riv/wos	000298754300024
issn	1744-683X
number of pages	9 (xsd:int)
http://bibframe.org/vocab/doi	10.1039/c1sm06783d
http://localhost/t...ganizacniJednotka	22330

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