About: Solvent relaxation studies applied to stimuli-responsive core-shell nanoparticles

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Solvent relaxation method (SRM) was used for studying the solvation and behavior of shells of polymeric micelles formed by linear polystyrene-block-poly(2-vinylpyridine)-block-poly(ethylene oxide) block copolymer (PS-PVP-PEO) in acidic aqueous media. The shell is formed by partially ionized (protonated) PVP and PEO blocks, while the compact spherical core is formed by PS. An amphiphilic fluorescent surfactant, PATMAN was used as a probe. It was shown by independent study that it binds strongly to micelles and that its fluorescent part monitors a thin PEO layer close to the PVP-PEO interface. The behavior of PATMAN in non-viscous low-molar-mass solvents was studied first and then the study of PS-PEO, PS-PVP and PS-PVP-PEO micelles was performed. The comparison of SRM data for all studied systems allows for a plausible explanation of a slightly surprising behavior of PS-PVP-PEO micelles in acidic aqueous buffers where an unexpected aggregation of micelles is observed at low pH. Solvent relaxation method (SRM) was used for studying the solvation and behavior of shells of polymeric micelles formed by linear polystyrene-block-poly(2-vinylpyridine)-block-poly(ethylene oxide) block copolymer (PS-PVP-PEO) in acidic aqueous media. The shell is formed by partially ionized (protonated) PVP and PEO blocks, while the compact spherical core is formed by PS. An amphiphilic fluorescent surfactant, PATMAN was used as a probe. It was shown by independent study that it binds strongly to micelles and that its fluorescent part monitors a thin PEO layer close to the PVP-PEO interface. The behavior of PATMAN in non-viscous low-molar-mass solvents was studied first and then the study of PS-PEO, PS-PVP and PS-PVP-PEO micelles was performed. The comparison of SRM data for all studied systems allows for a plausible explanation of a slightly surprising behavior of PS-PVP-PEO micelles in acidic aqueous buffers where an unexpected aggregation of micelles is observed at low pH. (en)
Title	Solvent relaxation studies applied to stimuli-responsive core-shell nanoparticles Solvent relaxation studies applied to stimuli-responsive core-shell nanoparticles (en)
skos:prefLabel	Solvent relaxation studies applied to stimuli-responsive core-shell nanoparticles Solvent relaxation studies applied to stimuli-responsive core-shell nanoparticles (en)
skos:notation	RIV/00216208:11310/10:10062255!RIV11-MSM-11310___
http://linked.open...avai/riv/aktivita	S
http://linked.open...avai/riv/aktivity	S
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Limpouchová, Zuzana Procházka, Karel Štěpánek, Miroslav Matějíček, 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	Univerzita Karlova v Praze / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	288554
http://linked.open...ai/riv/idVysledku	RIV/00216208:11310/10:10062255
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	SOLVENT RELAXATION; SPECTROSCOPY; POLYMERS; PRODAN; FLUORESCENCE; AQUEOUS-SOLUTIONS; BLOCK-COPOLYMER MICELLES (en)
http://linked.open.../riv/klicoveSlovo	FLUORESCENCE SOLVENT RELAXATION SPECTROSCOPY AQUEOUS-SOLUTIONS POLYMERS BLOCK-COPOLYMER MICELLES PRODAN
http://linked.open...ontrolniKodProRIV	[72E54AA4DC4D]
http://linked.open...v/mistoKonaniAkce	San Francisco, CA
http://linked.open...i/riv/mistoVydani	Bellingham
http://linked.open...i/riv/nazevZdroje	Single molecule spectroscopy and imaging iii
http://linked.open...in/vavai/riv/obor	CD
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	8 (xsd:int)
http://linked.open...UplatneniVysledku	2010
http://linked.open...iv/tvurceVysledku	Hof, Martin Matějíček, Pavel Limpouchová, Zuzana Procházka, Karel Šachl, Radek Humpolíčková, Jana Štěpánek, Miroslav Schroeder, Joerg
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open...ain/vavai/riv/wos	000284353600002
http://linked.open.../riv/zahajeniAkce	2010-01-23 (xsd:date)
issn	0277-786X
number of pages	12 (xsd:int)
http://purl.org/ne...btex#hasPublisher	SPIE-INT SOC OPTICAL ENGINEERING, 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
https://schema.org/isbn	978-0-8194-7967-9
http://localhost/t...ganizacniJednotka	11310

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