About: Fluorescent polyurethane nanofabrics: A source of singlet oxygen and oxygen sensing

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Polyurethane (PUR) nanofabrics based on nanofibers of average diameters in the range of 250-110 nm with different meso-tetraphenylporphyrin (TPP) loading (0.01-5 wt %) were prepared by an electrospinning process. The oxygen quenching of excited states and singlet oxygen-sensitized delayed fluorescence (SODF) of TPP were studied at different oxygen pressures. We found that TPP in PUR matrix is present in monomeric state, and it is easily accessed by oxygen. Analysis of the kinetics of the TPP triplet, singlet oxygen, and SODF indicates that repopulation of TPP fluorescent state includes reaction of singlet oxygen with TPP triplets. The integrated SODF achieved more than 20% of the prompt fluorescence for nanofabric loaded with 5 wt % TPP. The dependence of SODF intensity on the TPP concentration in nanofibers is nearly quadratic. Polyurethane (PUR) nanofabrics based on nanofibers of average diameters in the range of 250-110 nm with different meso-tetraphenylporphyrin (TPP) loading (0.01-5 wt %) were prepared by an electrospinning process. The oxygen quenching of excited states and singlet oxygen-sensitized delayed fluorescence (SODF) of TPP were studied at different oxygen pressures. We found that TPP in PUR matrix is present in monomeric state, and it is easily accessed by oxygen. Analysis of the kinetics of the TPP triplet, singlet oxygen, and SODF indicates that repopulation of TPP fluorescent state includes reaction of singlet oxygen with TPP triplets. The integrated SODF achieved more than 20% of the prompt fluorescence for nanofabric loaded with 5 wt % TPP. The dependence of SODF intensity on the TPP concentration in nanofibers is nearly quadratic. (en)
Title	Fluorescent polyurethane nanofabrics: A source of singlet oxygen and oxygen sensing Fluorescent polyurethane nanofabrics: A source of singlet oxygen and oxygen sensing (en)
skos:prefLabel	Fluorescent polyurethane nanofabrics: A source of singlet oxygen and oxygen sensing Fluorescent polyurethane nanofabrics: A source of singlet oxygen and oxygen sensing (en)
skos:notation	RIV/61388980:_____/10:00349546!RIV11-GA0-61388980
http://linked.open...avai/riv/aktivita	P S Z
http://linked.open...avai/riv/aktivity	P(GA203/08/0831), P(GAP207/10/1447), P(GAP208/10/1678), S, Z(AV0Z40320502), Z(AV0Z40400503), Z(MSM0021620857)
http://linked.open...iv/cisloPeriodika	12
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Lang, Kamil Hostomský, Jiří
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	Ústav anorganické chemie AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	259456
http://linked.open...ai/riv/idVysledku	RIV/61388980:_____/10:00349546
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	sensitized delayed fluorescence; molecular-oxygen; photophysical properties (en)
http://linked.open.../riv/klicoveSlovo	molecular-oxygen photophysical properties sensitized delayed fluorescence
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[1CB33202E357]
http://linked.open...i/riv/nazevZdroje	Langmuir
http://linked.open...in/vavai/riv/obor	CA
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	Photophysics and Photochemistry of Self-Assembled Nanostructures Photoactive hybrid materials Nanofabrics producing singlet oxygen
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	26
http://linked.open...iv/tvurceVysledku	Kubát, Pavel Lang, Kamil Zelinger, Zdeněk Hostomský, Jiří Mosinger, J. Jesenská, S. Plištil, L.
http://linked.open...ain/vavai/riv/wos	000278427600119
http://linked.open...n/vavai/riv/zamer	Design, syntéza a charakterizace klastrů, kompozitů, komplexů a dalších sloučenin na bázi anorganických látek; mechanismy a kinetika jejich interakcí Struktura, reaktivita a dynamika molekulárních a biomolekulárních systémů: teorie, experiment, aplikace Nové molekulární systémy pro pokročilé aplikace prospěšné pro zdraví a šetrné k životnímu prostředí
issn	0743-7463
number of pages	7 (xsd:int)

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