About: Polystyrene Nanofiber Materials Modified with an Externally Bound Porphyrin Photosensitizer

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1021/am4004057
Description	Polystyrene ion-exchange nanofiber materials with large surface areas and adsorption capacities were prepared by electrospinning followed by the sulfonation and adsorption of a cationic 5,10,15,20-tetrakis(1-methylpyridinium-4-yl)porphyrin (TMPyP) photosensitizer on the nanofiber surfaces. The morphology, structure, and photophysical properties of these nanofiber materials were characterized by microscopic methods and steady-state and time-resolved fluorescence and absorption spectroscopies. The externally bound TMPyP can be excited by visible light to form triplet states and singlet oxygen O-2((1)Delta(g)) and singlet oxygen-sensitized delayed fluorescence (SODF). The photophysical properties of the nanofibers were strongly dependent on the amount of bound TMPyP molecules and their organization on the nanofiber surfaces. The nanofibers demonstrated photooxidative activity toward inorganic and organic molecules and antibacterial activity against E. coli due to the sensitized formation of O-2((1)Delta(g)) that is an effective oxidation/cytotoxic agent. The nanofiber materials also adsorbed heavy metal cations (Pb2+) and removed them from the water environment. Polystyrene ion-exchange nanofiber materials with large surface areas and adsorption capacities were prepared by electrospinning followed by the sulfonation and adsorption of a cationic 5,10,15,20-tetrakis(1-methylpyridinium-4-yl)porphyrin (TMPyP) photosensitizer on the nanofiber surfaces. The morphology, structure, and photophysical properties of these nanofiber materials were characterized by microscopic methods and steady-state and time-resolved fluorescence and absorption spectroscopies. The externally bound TMPyP can be excited by visible light to form triplet states and singlet oxygen O-2((1)Delta(g)) and singlet oxygen-sensitized delayed fluorescence (SODF). The photophysical properties of the nanofibers were strongly dependent on the amount of bound TMPyP molecules and their organization on the nanofiber surfaces. The nanofibers demonstrated photooxidative activity toward inorganic and organic molecules and antibacterial activity against E. coli due to the sensitized formation of O-2((1)Delta(g)) that is an effective oxidation/cytotoxic agent. The nanofiber materials also adsorbed heavy metal cations (Pb2+) and removed them from the water environment. (en)
Title	Polystyrene Nanofiber Materials Modified with an Externally Bound Porphyrin Photosensitizer Polystyrene Nanofiber Materials Modified with an Externally Bound Porphyrin Photosensitizer (en)
skos:prefLabel	Polystyrene Nanofiber Materials Modified with an Externally Bound Porphyrin Photosensitizer Polystyrene Nanofiber Materials Modified with an Externally Bound Porphyrin Photosensitizer (en)
skos:notation	RIV/00216208:11310/13:10139606!RIV14-GA0-11310___
http://linked.open...avai/riv/aktivita	I P S Z
http://linked.open...avai/riv/aktivity	I, P(GA13-12496S), P(GAP208/10/1678), P(GBP208/12/G016), S, Z(MSM0021620857)
http://linked.open...iv/cisloPeriodika	9
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Henke, Petr Mosinger, 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	Univerzita Karlova v Praze / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	97132
http://linked.open...ai/riv/idVysledku	RIV/00216208:11310/13:10139606
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	antibacterial; photooxidation; adsorption; singlet oxygen; porphyrin; nanofiber (en)
http://linked.open.../riv/klicoveSlovo	singlet oxygen adsorption porphyrin nanofiber photooxidation antibacterial
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[5571577826E6]
http://linked.open...i/riv/nazevZdroje	ACS applied materials & interfaces
http://linked.open...in/vavai/riv/obor	CA
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Photophysics and Photochemistry of Self-Assembled Nanostructures Controlling structure and function of biomolecules at the molecular scale: theory meets experiment Multifunctional photoactive nanofiber materials
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	5
http://linked.open...iv/tvurceVysledku	Kubát, Pavel Lang, Kamil Mosinger, Jiří Sýkora, Jan Šlouf, Miroslav Henke, Petr
http://linked.open...ain/vavai/riv/wos	000318839100041
http://linked.open...n/vavai/riv/zamer	Nové molekulární systémy pro pokročilé aplikace prospěšné pro zdraví a šetrné k životnímu prostředí
issn	1944-8244
number of pages	8 (xsd:int)
http://bibframe.org/vocab/doi	10.1021/am4004057
http://localhost/t...ganizacniJednotka	11310

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